Adding metadata

15 files changed, 4474 insertions, 12 deletions

diff --git a/sys-fs/zfs/Manifest b/sys-fs/zfs/Manifest
index b7ebe1b9100d..b37471ab5307 100644
--- a/sys-fs/zfs/Manifest
+++ b/sys-fs/zfs/Manifest
@@ -1,2 +1,22 @@
+DIST zfs-2.1.16.tar.gz 35187215 BLAKE2B 8bb90903f3747589fff94a810584de54d7f598b0aa9d0b364cc679779d401a9a76f6914cbfbdd007e2066f02230ed4cac4f3735830ea70eb3bcc449af8229c5d SHA512 68e62015e44eeb997166418bf769afa3e96c037a9282dcfd08a8f01d935fa48076483158f628d70b0aed258427510996d4c4ee7d2644ff561163c76f776635d2
+DIST zfs-2.1.16.tar.gz.asc 836 BLAKE2B b46614399ca63d9c88216c55bb2177cc0c28f4da2cb6be3ee361efca994309abff46fdf6ad6b0bad448c44e9e84ee40e2183d1b482e04844317f14744bab5c1f SHA512 d2d94a4e3ffe182e86fa3319cb9661688125f378ffa1e5768ee89033f796a1f52f877c382588fb1f434686e30bc4e65e3f08ceac0dd3dd7f8f751ba6182c3317
+DIST zfs-2.2.10.tar.gz 33889026 BLAKE2B 47d11f1e515e7028ef548d5167bfca26135dc331dccaaf69c3b5095bb49788574f628949f19c423c5ca6cff2c5e6defb6a4575298821ab73a18964335fa3e1a6 SHA512 e15cd145072ebb444d15cbec11c770e28c5642ee7b8e7371f1cff968c32c0b121c591ae61a0d70a1f7dba312ac6ae25bd68af2f0b80b4debf1fa6ea05b60b5de
+DIST zfs-2.2.10.tar.gz.asc 858 BLAKE2B 3c44fa8ff580388ce8b2d915a2f89ed065179d483ade01e4607a428ba37c42275d7c3ec5e251ab24381f743bb20a81c3b44fb1593dd76244396ca295bf9e6e8a SHA512 a2e6d9e22b41dfc995dfaceb1f1adf7d75fea01b0ec3c66c255a121f7faa0d60e445df4ff0fb6cc85e5a4d68d7d3152923f48fe870ebe16a0c69187a9adbe52e
+DIST zfs-2.2.8.tar.gz 33852494 BLAKE2B 9e338544488d00a57594d638138896635ea62b80341ad9289b9faad7b899012206fef22e5742e1f5681c58d61d264127ed1e2dfe5aa9b2e9aac2243421c60b11 SHA512 95c203a97032b8ae46cc84e0e6fd68d61e42fb6c6fde7102b04ac85291579c18b1d52b3e93e345a3bc5491bef8bf07b8e7edcbf69cb6222c5d8454a3c83adb11
+DIST zfs-2.2.8.tar.gz.asc 224 BLAKE2B c3a06953c22d1b485fbd030c93ad0e744c50a91e51bbed5bef56090a1da57b02ec580499a419201f365c99ade53af5d6f545876e6d0da25ee7870fc86786288b SHA512 fcd6fe2412b5a2e83ad2609d56993ed4ad61e10c4f77f1e94a66403adf66ac90604fb567e7cde6420fe0b6a604abfd817a63e744f7c4fe8452b862c1d8cc4df3
+DIST zfs-2.2.9.tar.gz 33864041 BLAKE2B abafd4da0c98cf93a2648150c859ffc6847aa2f5bfa59f3b6cc1619a2313a1600923c7a07c9e647c6c0f40eda21fb0985de81a436c44513a5bd99984a18329a5 SHA512 bed0f7794ff7898557a4854d8634a96f9be5368b0264558d980e70664fe1f02a35b05a96b5e92acd40e2b741373ca4a312e31ad4f69c4d639c817cce3988f382
+DIST zfs-2.2.9.tar.gz.asc 858 BLAKE2B caf76646bb3cba75b65b9b93b63f698d172806d60480785938ca3112a67d3e6d9a9b123217df4c92ad682b695292d9e674c4cba819b94276d154aba11e8dcc7d SHA512 ff3a1789154382b06e778b1847519188d520d5037f8c78089309c1d532e8496f682ead1648991bb9eb58dbdedd0007fa7d3157a8887a525470c9220bab3eb4e2
+DIST zfs-2.3.4.tar.gz 34386899 BLAKE2B e7619445a9138475e51e1578cb4e85032570830faba5aab44013a652596a07e49cf602acfe7fd0e5411199d11614d4686cc3f14fddf3062695ce3da922075efd SHA512 56b90960de6aa94b76f8efc3c84993454a8d544bd47e1270e02caa8d96569e866102e17ef1f16056722bf5f6624fad0bbe7f9ef0e94bc0c3fc16e61b681db815
+DIST zfs-2.3.4.tar.gz.asc 858 BLAKE2B 2537afa40b48c07b8ad61a4f6973e40a78b5863afbb6b75674fb7a5950ba2dda22dfa93a180190332d234b0b2e2ce14ed61cb34bc0f56e609dad3cdb805ab5c2 SHA512 cc50fb915d4e8a7eb894bdf919940a8c68828e48a5e1f2a08b08a5e75c0eb8a9cd4feaa84742b65d6b2d85ee839ac2b7d565ed7958006ff079d751145463243b
+DIST zfs-2.3.6.tar.gz 34410022 BLAKE2B 9d83e296cb4e78c67cb9d30ba79b74b4b53c9fd4b0b58cd7a9e1e7b0fafc2c5a49b002c1023d07736c1a6149c61963ccb45e9a82d25944c0a7bd4486ea7fcde8 SHA512 789f534124173693ad461f0fcd5df442588225d5f42420f658fe5c7cb57549417aa472ae95658c90c9dad6818f91d8fb0cbd1fcef2395d167b3ded38477e18c7
+DIST zfs-2.3.6.tar.gz.asc 858 BLAKE2B 88e9344ed51d9906011f6f381364aeb8bfe3360b0c12a18ec45c8a8d42725f345e61c0ad63037ace51bdd04276567cd90ba2311c971c6b2f10501ffb0363be84 SHA512 fe1b7977a8ae564fe639ca824a557a1600c3e22df0af3e750464a3c960b9709c289c07e42ef40173e153453c5641c442c660c804ea21370d77d9819c13b655b1
+DIST zfs-2.3.7.tar.gz 34431113 BLAKE2B 8b11b1bd69861426d82fa4c25a320082ab1b1250931de6cd26f30ad1f26cec2e830cc76f49875305583e473013e8ed15048a74dd9c847da077c12b6ac4c6ec0c SHA512 801ff38a7babe204f5dd5e159cf228b2c35b627f41fb33e6ae1e38751829ccbc486ea84725286d5d69c099fca9c7d063f9532d95a8a0c19f50fe0d40895225f2
+DIST zfs-2.3.7.tar.gz.asc 858 BLAKE2B 775f7d82e47e8664a0e285f3470e59b4ab8338826d0226267cb669e114cd128354266d5797714629a9474c01049c35b04d00cef81086c66131a603ece32188d3 SHA512 6a945170563ee7dd4df2ce0131596418a52905e0915e65a4b2b55ee13d7020a0a7ea03abcb5651b0b84459656691bb339ef20748022c2bafdb643bb0df56235b
+DIST zfs-2.3.8.tar.gz 34456706 BLAKE2B 74b3270d5daddfcb46947564aa544859247ca5b6c3298f42c5bf4554f717b14f99fafe230e6c0c62d1fd295203c38c29440dcf2204b55b4bcdf615f01221f410 SHA512 4a993588505259eccb99ff9b763eb4ebf92045fa18b528d308ca8f8f9e74effc7df53f80d0e31520f2353726baa531821dc02288115835eb557f4948b36d986f
+DIST zfs-2.3.8.tar.gz.asc 858 BLAKE2B 269ee57e28ccbadebd6e7c17d4400adee8387235a53422c05acdf2646fda42a2a7b3598cbeb30f84b66b5a3b0dbc23458c806904f477579b7107204e3dd46ce7 SHA512 a8c644e70bf591223dc653086684bca8ebf3db54531254612e6b274118905789005fe17f3d00ac42aebc4af734584e792e279bdf803be97c274fb61ff9586987
+DIST zfs-2.4.1.tar.gz 34498270 BLAKE2B dc7eedb989297ae13d42c1f7c3b55b393d47f1706a029c38801381675909069c6c2112ca545ac395cb2e7bcbaf225fa79982e3c6f3adeca0d30828b88da0f58b SHA512 15ef20ed8fb976dd123e1f5dca8f0f71a754a3be6edf826bf1d744a28cc8400969d33b79be90a4b5bef95dd200caaca942876f4462b7749667a9e4a225d82676
+DIST zfs-2.4.1.tar.gz.asc 858 BLAKE2B aeeacec46bd3ac439f53eb24aedfd449bc647c1cc1d93c17d0d8be07f0e01490d33586e47d60ab9250915d514b1140f8d8d1958c8c627e0e887f7ab640d58fa3 SHA512 0d8f9c9eba22aacd122066d4a9a64808b74630f15bb511e35fa0f3100f143f6ef39d1d564cf5b257444066eac4796236da7e8c2fc8627f3088ebb31cba1f833a
 DIST zfs-2.4.2.tar.gz 34522136 BLAKE2B 265a711156f726ec6d14a20c26f435336ae37ff23de79d69ea05a55b1455e25b7f48774cd54c877c18a0be2be8249772e4138d1fc32c9d0918d8b27d300e48c1 SHA512 833cc076ae65a4ac6acc27c6c62f60568af0c291b9a1091a1835543861a291606e314b09ca14558cbed11239bb613e3f1f7f9e7fedeea6635e27aacde8c22378
 DIST zfs-2.4.2.tar.gz.asc 858 BLAKE2B bc8b29ab3d4d0e5cc8a72a035d7140296a6a1d0199ff0791c1e123cc852b6ecc259d95ae7243308df5f3d183ad03a4331b61ecc2700ec5d8fd8e9c4c2bae466e SHA512 eb77cc7695e6a9f009d6ea618401d070c5c22c3a6a24722fadb5a414a7c18b375e793085157f2c307629e9bda0fd9a16b37429979e27986caa2bae30a8b24179
+DIST zfs-2.4.3.tar.gz 34545847 BLAKE2B 9f9c58c31a99bc50cfa93a8a924c09a278e96706986afe09bd1fd02e3ce82fa6bee5d4b27542db76134e014ee09ce7c2c723eda5c98c7c6dab5f63aedb83ed47 SHA512 343fbb19c0ca5f91254d216b6113fb8a7b028bdafc976ba9cb1ff6b7d3442a6a0fbf2cc4bde4f2fcc7cb7293cc17a1914664a943e5c798d261d00b22a0e56989
+DIST zfs-2.4.3.tar.gz.asc 858 BLAKE2B 4163ff53218a3c5b146135cdffebea94b4e02f1a44c42a7990e86d7deeb119b05cd47e86663d0f3b6362ee2cb3334e822a0c90b70e6688b232dbe0fea18dce87 SHA512 c429fcaa2ef7a31f22734fb4282ede274a79017ab5b9a76553d61c6090fbf36e5ff7b37f7945a08aea98fb7bdc618343801747a7c07f1abc1fb1cab8ac9490d8
diff --git a/sys-fs/zfs/files/2.4.2-gcc16-earlyclobber-fix.patch b/sys-fs/zfs/files/2.4.2-gcc16-earlyclobber-fix.patch
new file mode 100644
index 000000000000..3a2421c1dece
--- /dev/null
+++ b/sys-fs/zfs/files/2.4.2-gcc16-earlyclobber-fix.patch
@@ -0,0 +1,68 @@
+From be04f4acfa83261571dad5c9c4bfda9fe38063ff Mon Sep 17 00:00:00 2001
+From: Brian Behlendorf <behlendorf1@llnl.gov>
+Date: Wed, 13 May 2026 17:55:23 +0000
+Subject: [PATCH] Fix aarch64 build failure by removing earlyclobber
+MIME-Version: 1.0
+Content-Type: text/plain; charset=UTF-8
+Content-Transfer-Encoding: 8bit
+
+The UVR macros used "+&w" (read-write + earlyclobber) as the
+constraint for NEON register operands that are declared as explicit
+hard-register variables via:
+
+register unsigned char wN asm("vN") __attribute__((vector_size(16)));
+
+The + modifier implicitly makes the operand also an input (reading the
+register before the asm runs). The & (earlyclobber) modifier says "this
+output may be written before all inputs are consumed." Having an
+earlyclobber output on the same hard-register that is simultaneously
+an input is a contradiction — GCC 16 now strictly diagnoses this.
+
+The fix removes the & from "+&w", yielding "+w". The earlyclobber
+was both incorrect (contradicts the implicit input) and unnecessary
+(the physical registers are already hard-bound, so the compiler has no
+freedom to assign conflicting registers anyway).
+
+Co-Authored-by: Claude Sonnet 4.6 <noreply@anthropic.com>
+Signed-off-by: Brian Behlendorf <behlendorf1@llnl.gov>
+Issue #18525
+---
+ .../zfs/vdev_raidz_math_aarch64_neon_common.h  | 18 +++++++++---------
+ 1 file changed, 9 insertions(+), 9 deletions(-)
+
+diff --git a/module/zfs/vdev_raidz_math_aarch64_neon_common.h b/module/zfs/vdev_raidz_math_aarch64_neon_common.h
+index 1ec4d0218bb0..3c3370290c88 100644
+--- a/module/zfs/vdev_raidz_math_aarch64_neon_common.h
++++ b/module/zfs/vdev_raidz_math_aarch64_neon_common.h
+@@ -102,14 +102,14 @@
+ 
+ #define	WVR(X) [w##X] "=w" (w##X)
+ 
+-#define	UVR0_(REG, ...) [w##REG] "+&w" (w##REG)
+-#define	UVR1_(_1, REG, ...) [w##REG] "+&w" (w##REG)
+-#define	UVR2_(_1, _2, REG, ...) [w##REG] "+&w" (w##REG)
+-#define	UVR3_(_1, _2, _3, REG, ...) [w##REG] "+&w" (w##REG)
+-#define	UVR4_(_1, _2, _3, _4, REG, ...) [w##REG] "+&w" (w##REG)
+-#define	UVR5_(_1, _2, _3, _4, _5, REG, ...) [w##REG] "+&w" (w##REG)
+-#define	UVR6_(_1, _2, _3, _4, _5, _6, REG, ...) [w##REG] "+&w" (w##REG)
+-#define	UVR7_(_1, _2, _3, _4, _5, _6, _7, REG, ...) [w##REG] "+&w" (w##REG)
++#define	UVR0_(REG, ...) [w##REG] "+w" (w##REG)
++#define	UVR1_(_1, REG, ...) [w##REG] "+w" (w##REG)
++#define	UVR2_(_1, _2, REG, ...) [w##REG] "+w" (w##REG)
++#define	UVR3_(_1, _2, _3, REG, ...) [w##REG] "+w" (w##REG)
++#define	UVR4_(_1, _2, _3, _4, REG, ...) [w##REG] "+w" (w##REG)
++#define	UVR5_(_1, _2, _3, _4, _5, REG, ...) [w##REG] "+w" (w##REG)
++#define	UVR6_(_1, _2, _3, _4, _5, _6, REG, ...) [w##REG] "+w" (w##REG)
++#define	UVR7_(_1, _2, _3, _4, _5, _6, _7, REG, ...) [w##REG] "+w" (w##REG)
+ 
+ #define	UVR0(r...) UVR0_(r)
+ #define	UVR1(r...) UVR1_(r)
+@@ -120,7 +120,7 @@
+ #define	UVR6(r...) UVR6_(r, 36, 35, 34, 33, 32, 31)
+ #define	UVR7(r...) UVR7_(r, 36, 35, 34, 33, 32, 31, 30)
+ 
+-#define	UVR(X) [w##X] "+&w" (w##X)
++#define	UVR(X) [w##X] "+w" (w##X)
+ 
+ #define	R_01(REG1, REG2, ...) REG1, REG2
+ #define	_R_23(_0, _1, REG2, REG3, ...) REG2, REG3
diff --git a/sys-fs/zfs/files/2.4.2-properly_apply_ro_rw_mount_option_to_superblock.patch b/sys-fs/zfs/files/2.4.2-properly_apply_ro_rw_mount_option_to_superblock.patch
new file mode 100644
index 000000000000..b29d1e741c02
--- /dev/null
+++ b/sys-fs/zfs/files/2.4.2-properly_apply_ro_rw_mount_option_to_superblock.patch
@@ -0,0 +1,566 @@
+From dbbef111623ff38efdb0fabcb26848c7a7c08789 Mon Sep 17 00:00:00 2001
+From: Rob Norris <rob.norris@truenas.com>
+Date: Tue, 19 May 2026 12:50:39 +1000
+Subject: [PATCH 1/3] ZTS/zfs_mount: lift & update helpers from
+ zfs_mount_remount
+
+zfs_mount_remount has some nice helpers for checking the claimed and
+actual read-only/read-write state of a mount. I wanted to use them for
+another test but they weren't exactly what I wanted.
+
+This adds separate functions for the different kinds of mounts the
+zfs_mount_remount test wants to use, mostly to avoid the assymetry of
+sometimes calling a helper function and sometimes doing it direct. It
+also separates the code to get the current ro/rw mount option from
+actually asserting it.
+
+Test has been updated to use the new functions, but the logic and
+structure has not changed.
+
+Sponsored-by: TrueNAS
+Signed-off-by: Rob Norris <rob.norris@truenas.com>
+---
+ .../cli_root/zfs_mount/zfs_mount.kshlib       | 128 ++++++++++++++++++
+ .../cli_root/zfs_mount/zfs_mount_remount.ksh  | 103 ++++----------
+ 2 files changed, 156 insertions(+), 75 deletions(-)
+
+diff --git a/tests/zfs-tests/tests/functional/cli_root/zfs_mount/zfs_mount.kshlib b/tests/zfs-tests/tests/functional/cli_root/zfs_mount/zfs_mount.kshlib
+index 08795a7ea257..5d7ceb971123 100644
+--- a/tests/zfs-tests/tests/functional/cli_root/zfs_mount/zfs_mount.kshlib
++++ b/tests/zfs-tests/tests/functional/cli_root/zfs_mount/zfs_mount.kshlib
+@@ -27,6 +27,8 @@
+ 
+ #
+ # Copyright (c) 2017 by Delphix. All rights reserved.
++# Copyright 2017, loli10K <ezomori.nozomu@gmail.com>. All rights reserved.
++# Copyright (c) 2026, TrueNAS.
+ #
+ 
+ . $STF_SUITE/include/libtest.shlib
+@@ -131,3 +133,129 @@ function verify_mount_display
+ 	done
+ 	return 0
+ }
++
++# Helper functions to call the system mount(8) with various options
++function mount_default # <dataset mountpoint | mountpoint>
++{
++	typeset opts=
++	if is_freebsd; then
++		opts="-t zfs"
++	else
++		opts="-t zfs"
++	fi
++
++	mount $opts "$@"
++	return $?
++}
++
++function mount_ro # <dataset mountpoint | mountpoint>
++{
++	typeset opts=
++	if is_freebsd; then
++		opts="-t zfs -r"
++	else
++		opts="-t zfs -o ro"
++	fi
++
++	mount $opts "$@"
++	return $?
++}
++
++function mount_rw # <dataset mountpoint | mountpoint>
++{
++	typeset opts=
++	if is_freebsd; then
++		opts="-t zfs -w"
++	else
++		opts="-t zfs -o rw"
++	fi
++
++	mount $opts "$@"
++	return $?
++}
++
++function remount_ro # <dataset mountpoint | mountpoint>
++{
++	typeset opts=
++	if is_freebsd; then
++		opts="-t zfs -ur"
++	else
++		opts="-o remount,ro"
++	fi
++
++	mount $opts "$@"
++	return $?
++}
++
++function remount_rw # <dataset mountpoint | mountpoint>
++{
++	typeset opts=
++	if is_freebsd; then
++		opts="-t zfs -uw"
++	else
++		opts="-o remount,rw"
++	fi
++
++	mount $opts "$@"
++	return $?
++}
++
++#
++# Verify that $mountpoint is mounted readonly
++# This is preferred over "log_mustnot touch $fs" because we actually want to
++# verify the error returned is EROFS
++#
++function mount_is_ro # mountpoint
++{
++	typeset mountpoint="$1"
++
++	file_write -o create -f $mountpoint/file.dat
++	ret=$?
++	if [[ $ret != 30 ]]; then
++		log_fail "Writing to $mountpoint did not return EROFS ($ret)."
++	fi
++}
++
++function mount_is_rw # mountpoint
++{
++	typeset mountpoint="$1"
++	log_must touch $mountpoint/file.dat
++}
++
++# Get the read-only/read-write option for $mountpoint
++# Prints either "ro" or "rw", or nothing if $mountpoint is not in the mount
++# table, or is not a ZFS mount.
++function mount_get_ro_rw # mountpoint
++{
++	typeset mountpoint="$1"
++
++	if is_freebsd; then
++		# tank/hello  /tank/hello  zfs  rw,nfsv4acls  0 0
++		mount -p | \
++		awk -v mountpoint="$mountpoint" '
++		    $2 != mountpoint || $3 != "zfs" { next }
++		    $4 ~ /(^|,)ro(,|$)/ { print "ro" }
++		    $4 ~ /(^|,)rw(,|$)/ { print "rw" }'
++	else
++		# tank/hello  /tank/hello  zfs  rw,relatime,xattr,noacl,casesensitive  0 0
++		awk -v mountpoint="$mountpoint" '
++		    $2 != mountpoint || $3 != "zfs" { next }
++		    $4 ~ /(^|,)ro(,|$)/ { print "ro" }
++		    $4 ~ /(^|,)rw(,|$)/ { print "rw" }' /proc/mounts
++	fi
++}
++
++# Verify that $mountpoint is mounted with a "read-only" option
++function mount_has_ro_option # mountpoint
++{
++	typeset ropt=$(mount_get_ro_rw "$1")
++	log_must test $ropt == "ro"
++}
++
++# Verify that $mountpoint is mounted with a "read-write" option
++function mount_has_rw_option # mountpoint
++{
++	typeset ropt=$(mount_get_ro_rw "$1")
++	log_must test $ropt == "rw"
++}
++
+diff --git a/tests/zfs-tests/tests/functional/cli_root/zfs_mount/zfs_mount_remount.ksh b/tests/zfs-tests/tests/functional/cli_root/zfs_mount/zfs_mount_remount.ksh
+index c54128f7b9e7..a16d17a12291 100755
+--- a/tests/zfs-tests/tests/functional/cli_root/zfs_mount/zfs_mount_remount.ksh
++++ b/tests/zfs-tests/tests/functional/cli_root/zfs_mount/zfs_mount_remount.ksh
+@@ -23,6 +23,7 @@
+ 
+ #
+ # Copyright 2017, loli10K <ezomori.nozomu@gmail.com>. All rights reserved.
++# Copyright (c) 2026, TrueNAS.
+ #
+ 
+ . $STF_SUITE/include/libtest.shlib
+@@ -54,54 +55,6 @@ function cleanup
+ 	return 0
+ }
+ 
+-if is_freebsd; then
+-	typeset RO="-t zfs -ur"
+-	typeset RW="-t zfs -uw"
+-else
+-	typeset RO="-o remount,ro"
+-	typeset RW="-o remount,rw"
+-fi
+-
+-#
+-# Verify the $filesystem is mounted readonly
+-# This is preferred over "log_mustnot touch $fs" because we actually want to
+-# verify the error returned is EROFS
+-#
+-function readonlyfs # filesystem
+-{
+-	typeset filesystem="$1"
+-
+-	file_write -o create -f $filesystem/file.dat
+-	ret=$?
+-	if [[ $ret != 30 ]]; then
+-		log_fail "Writing to $filesystem did not return EROFS ($ret)."
+-	fi
+-}
+-
+-#
+-# Verify $dataset is mounted with $option
+-#
+-function checkmount # dataset option
+-{
+-	typeset dataset="$1"
+-	typeset option="$2"
+-	typeset options=""
+-
+-	if is_freebsd; then
+-		options=$(mount -p | awk -v ds="$dataset" '$1 == ds { print $4 }')
+-	else
+-		options=$(awk -v ds="$dataset" '$1 == ds { print $4 }' /proc/mounts)
+-	fi
+-	if [[ "$options" == '' ]]; then
+-		log_fail "Dataset $dataset is not mounted"
+-	elif [[ ! -z "${options##*$option*}" ]]; then
+-		log_fail "Dataset $dataset is not mounted with expected "\
+-		    "option $option ($options)"
+-	else
+-		log_note "Dataset $dataset is mounted with option $option"
+-	fi
+-}
+-
+ log_assert "Verify remount functionality on both filesystem and snapshots"
+ 
+ log_onexit cleanup
+@@ -117,35 +70,35 @@ MNTPSNAP="$TESTDIR/zfs_snap_mount"
+ log_must mkdir -p $MNTPSNAP
+ 
+ # 2. Verify we can (re)mount the dataset readonly/read-write
+-log_must touch $MNTPFS/file.dat
+-checkmount $TESTFS 'rw'
+-log_must mount $RO $TESTFS $MNTPFS
+-readonlyfs $MNTPFS
+-checkmount $TESTFS 'ro'
+-log_must mount $RW $TESTFS $MNTPFS
+-log_must touch $MNTPFS/file.dat
+-checkmount $TESTFS 'rw'
++mount_is_rw $MNTPFS
++mount_has_rw_option $MNTPFS
++log_must remount_ro $TESTFS $MNTPFS
++mount_is_ro $MNTPFS
++mount_has_ro_option $MNTPFS
++log_must remount_rw $TESTFS $MNTPFS
++mount_is_rw $MNTPFS
++mount_has_rw_option $MNTPFS
+ 
+ if is_linux; then
+ 	# 3. Verify we can (re)mount the snapshot readonly
+-	log_must mount -t zfs $TESTSNAP $MNTPSNAP
+-	readonlyfs $MNTPSNAP
+-	checkmount $TESTSNAP 'ro'
+-	log_must mount $RO $TESTSNAP $MNTPSNAP
+-	readonlyfs $MNTPSNAP
+-	checkmount $TESTSNAP 'ro'
++	log_must mount_default $TESTSNAP $MNTPSNAP
++	mount_is_ro $MNTPSNAP
++	mount_has_ro_option $MNTPSNAP
++	log_must remount_ro $TESTSNAP $MNTPSNAP
++	mount_is_ro $MNTPSNAP
++	mount_has_ro_option $MNTPSNAP
+ 	log_must umount $MNTPSNAP
+ fi
+ 
+ # 4. Verify we can't remount a snapshot read-write
+ # The "mount -o rw" command will succeed but the snapshot is mounted readonly.
+ # The "mount -o remount,rw" command must fail with an explicit error.
+-log_must mount -t zfs -o rw $TESTSNAP $MNTPSNAP
+-readonlyfs $MNTPSNAP
+-checkmount $TESTSNAP 'ro'
+-log_mustnot mount $RW $TESTSNAP $MNTPSNAP
+-readonlyfs $MNTPSNAP
+-checkmount $TESTSNAP 'ro'
++log_must mount_rw $TESTSNAP $MNTPSNAP
++mount_is_ro $MNTPSNAP
++mount_has_ro_option $MNTPSNAP
++log_mustnot remount_rw $TESTSNAP $MNTPSNAP
++mount_is_ro $MNTPSNAP
++mount_has_ro_option $MNTPSNAP
+ log_must umount $MNTPSNAP
+ 
+ # 5. Verify we can remount a dataset readonly and unmount it with
+@@ -153,8 +106,8 @@ log_must umount $MNTPSNAP
+ log_must eval "echo 'password' | zfs create -o sync=disabled \
+     -o encryption=on -o keyformat=passphrase $TESTFS/crypt"
+ CRYPT_MNTPFS="$(get_prop mountpoint $TESTFS/crypt)"
+-log_must touch $CRYPT_MNTPFS/file.dat
+-log_must mount $RO $TESTFS/crypt $CRYPT_MNTPFS
++mount_is_rw $CRYPT_MNTPFS
++log_must remount_ro $TESTFS/crypt $CRYPT_MNTPFS
+ log_must umount -f $CRYPT_MNTPFS
+ sync_pool $TESTPOOL
+ 
+@@ -163,10 +116,10 @@ log_must zpool export $TESTPOOL
+ log_must zpool import -o readonly=on $TESTPOOL
+ 
+ # 7. Verify we can't remount its filesystem read-write
+-readonlyfs $MNTPFS
+-checkmount $TESTFS 'ro'
+-log_mustnot mount $RW $MNTPFS
+-readonlyfs $MNTPFS
+-checkmount $TESTFS 'ro'
++mount_is_ro $MNTPFS
++mount_has_ro_option $MNTPFS
++log_mustnot remount_rw $MNTPFS
++mount_is_ro $MNTPFS
++mount_has_ro_option $MNTPFS
+ 
+ log_pass "Both filesystem and snapshots can be remounted correctly."
+
+From b8216fb774a831042c321d13ce748d455df82936 Mon Sep 17 00:00:00 2001
+From: Rob Norris <rob.norris@truenas.com>
+Date: Tue, 19 May 2026 14:27:12 +1000
+Subject: [PATCH 2/3] ZTS/zfs_mount: test that ro/rw mount methods remain
+ consistent
+
+Whether a mount ends up as read-only or read-write depends on a
+combination of platform, readonly= filesystem property, mount method
+(system mount(8) or zfs-mount(8)) and mount option provided (ro, rw or
+none).
+
+This tests all combinations, and ensures they match what has
+traditionally been expected on this platform, so we'll know if we
+accidentally changed it.
+
+Sponsored-by: TrueNAS
+Signed-off-by: Rob Norris <rob.norris@truenas.com>
+---
+ tests/runfiles/common.run                     |   4 +-
+ tests/runfiles/sanity.run                     |   2 +-
+ tests/zfs-tests/tests/Makefile.am             |   1 +
+ .../cli_root/zfs_mount/zfs_mount_ro_rw.ksh    | 130 ++++++++++++++++++
+ 4 files changed, 134 insertions(+), 3 deletions(-)
+ create mode 100755 tests/zfs-tests/tests/functional/cli_root/zfs_mount/zfs_mount_ro_rw.ksh
+
+diff --git a/tests/runfiles/common.run b/tests/runfiles/common.run
+index 82a2d1e815e4..6e62b552a0db 100644
+--- a/tests/runfiles/common.run
++++ b/tests/runfiles/common.run
+@@ -271,8 +271,8 @@ tests = ['zfs_mount_001_pos', 'zfs_mount_002_pos', 'zfs_mount_003_pos',
+     'zfs_mount_004_pos', 'zfs_mount_005_pos', 'zfs_mount_007_pos',
+     'zfs_mount_009_neg', 'zfs_mount_010_neg', 'zfs_mount_011_neg',
+     'zfs_mount_012_pos', 'zfs_mount_all_001_pos', 'zfs_mount_encrypted',
+-    'zfs_mount_remount', 'zfs_mount_all_fail', 'zfs_mount_all_mountpoints',
+-    'zfs_mount_test_race', 'zfs_mount_recursive']
++    'zfs_mount_remount', 'zfs_mount_ro_rw', 'zfs_mount_all_fail',
++    'zfs_mount_all_mountpoints', 'zfs_mount_test_race', 'zfs_mount_recursive']
+ tags = ['functional', 'cli_root', 'zfs_mount']
+ 
+ [tests/functional/cli_root/zfs_program]
+diff --git a/tests/runfiles/sanity.run b/tests/runfiles/sanity.run
+index d62f8f3fb161..0deaa038a31f 100644
+--- a/tests/runfiles/sanity.run
++++ b/tests/runfiles/sanity.run
+@@ -156,7 +156,7 @@ tests = ['zfs_mount_001_pos', 'zfs_mount_002_pos', 'zfs_mount_003_pos',
+     'zfs_mount_004_pos', 'zfs_mount_005_pos', 'zfs_mount_007_pos',
+     'zfs_mount_009_neg', 'zfs_mount_010_neg', 'zfs_mount_011_neg',
+     'zfs_mount_012_pos', 'zfs_mount_encrypted', 'zfs_mount_remount',
+-    'zfs_mount_all_fail', 'zfs_mount_all_mountpoints',
++    'zfs_mount_ro_rw', 'zfs_mount_all_fail', 'zfs_mount_all_mountpoints',
+     'zfs_mount_test_race', 'zfs_mount_recursive']
+ tags = ['functional', 'cli_root', 'zfs_mount']
+ 
+diff --git a/tests/zfs-tests/tests/Makefile.am b/tests/zfs-tests/tests/Makefile.am
+index 85f00f28b0f9..98f392538821 100644
+--- a/tests/zfs-tests/tests/Makefile.am
++++ b/tests/zfs-tests/tests/Makefile.am
+@@ -814,6 +814,7 @@ nobase_dist_datadir_zfs_tests_tests_SCRIPTS += \
+ 	functional/cli_root/zfs_mount/zfs_mount_encrypted.ksh \
+ 	functional/cli_root/zfs_mount/zfs_mount_recursive.ksh \
+ 	functional/cli_root/zfs_mount/zfs_mount_remount.ksh \
++	functional/cli_root/zfs_mount/zfs_mount_ro_rw.ksh \
+ 	functional/cli_root/zfs_mount/zfs_mount_test_race.ksh \
+ 	functional/cli_root/zfs_mount/zfs_multi_mount.ksh \
+ 	functional/cli_root/zfs_program/cleanup.ksh \
+diff --git a/tests/zfs-tests/tests/functional/cli_root/zfs_mount/zfs_mount_ro_rw.ksh b/tests/zfs-tests/tests/functional/cli_root/zfs_mount/zfs_mount_ro_rw.ksh
+new file mode 100755
+index 000000000000..15e78e6fd88c
+--- /dev/null
++++ b/tests/zfs-tests/tests/functional/cli_root/zfs_mount/zfs_mount_ro_rw.ksh
+@@ -0,0 +1,130 @@
++#!/bin/ksh -p
++# SPDX-License-Identifier: CDDL-1.0
++#
++# CDDL HEADER START
++#
++# The contents of this file are subject to the terms of the
++# Common Development and Distribution License (the "License").
++# You may not use this file except in compliance with the License.
++#
++# You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
++# or https://opensource.org/licenses/CDDL-1.0.
++# See the License for the specific language governing permissions
++# and limitations under the License.
++#
++# When distributing Covered Code, include this CDDL HEADER in each
++# file and include the License file at usr/src/OPENSOLARIS.LICENSE.
++# If applicable, add the following below this CDDL HEADER, with the
++# fields enclosed by brackets "[]" replaced with your own identifying
++# information: Portions Copyright [yyyy] [name of copyright owner]
++#
++# CDDL HEADER END
++#
++
++#
++# Copyright (c) 2026, TrueNAS.
++#
++
++. $STF_SUITE/include/libtest.shlib
++. $STF_SUITE/tests/functional/cli_root/zfs_mount/zfs_mount.kshlib
++
++#
++# we set up and mount multiple times, with these combinations:
++# - readonly property: on, off
++# - mount method: mount(8) (mountpoint=legacy), zfs-mount(8) (mountpoint=path)
++# - mount option: [none], ro, rw
++#
++# after each mount, we check whether we ended up mounting read-only or
++# read-write, and note the result. once we've done them all, we compare the
++# result set to the "correct" set for this platform (by observation). the
++# test passes if they match, fail if they don't
++#
++#        readonly     |         on          |         off         |
++#        mount method |  legacy  |   path   |  legacy  |   path   |
++#        mount option | -- ro rw | -- ro rw | -- ro rw | -- ro rw |
++typeset -a rs_linux=(   rw ro rw   ro ro rw   rw ro rw   rw ro rw )
++typeset -a rs_freebsd=( ro ro ro   ro ro rw   rw ro rw   rw ro rw )
++
++if is_linux ; then
++    typeset -n rs_wanted=rs_linux
++elif is_freebsd ; then
++    typeset -n rs_wanted=rs_freebsd
++else
++    log_unsupported "no result set defined for this platform"
++fi
++
++verify_runnable "both"
++
++testfs=$TESTPOOL/$TESTFS
++testmnt=$TESTDIR/mountpoint
++
++function cleanup
++{
++	log_must zfs inherit -S canmount $testfs
++	log_must zfs inherit readonly $testfs
++	log_must zfs inherit mountpoint $testfs
++	log_must rm -rf $testmnt
++}
++
++log_assert "Verify combinations of readonly/readwrite produce correct mount."
++
++log_onexit cleanup
++
++
++# setup
++log_must datasetexists $testfs
++log_must zfs set canmount=noauto $testfs
++umount $testfs
++
++
++typeset -a rs=()
++
++for readonly in on off ; do
++	for method in legacy path ; do
++		for option in default ro rw ; do
++
++			log_must zfs set readonly=$readonly $testfs
++
++			if [[ $method == 'legacy' ]] ; then
++				log_must zfs set mountpoint=legacy $testfs
++			else
++				log_must zfs set mountpoint=$testmnt $testfs
++			fi
++
++			# recreate the mountpoint. even if it wasn't mounted,
++			# changing the mountpoint property can remove it
++			log_must mkdir -p $testmnt
++
++			# issue the mount with the wanted method and option
++			case $method in
++			legacy)
++				case $option in
++				default) log_must mount_default $testfs $testmnt ;;
++				ro)      log_must mount_ro $testfs $testmnt ;;
++				rw)      log_must mount_rw $testfs $testmnt ;;
++				esac
++			;;
++			path)
++				case $option in
++				default)  log_must zfs mount $testfs ;;
++				ro)       log_must zfs mount -o ro $testfs ;;
++				rw)       log_must zfs mount -o rw $testfs ;;
++				esac
++			;;
++			esac
++
++			result=$(mount_get_ro_rw $testmnt)
++			rs+=($result)
++			log_note "result: $result"
++
++			log_must umount $testfs
++		done
++	done
++done
++
++log_note "results: ${rs[@]}"
++log_note "wanted:  ${rs_wanted[@]}"
++
++log_must test "${rs[*]}" == "${rs_wanted[*]}"
++
++log_pass "All mounts correct for this platform."
+
+From 2ecaacff41d6cc9c08c65530d3d7401500a9c817 Mon Sep 17 00:00:00 2001
+From: Rob Norris <rob.norris@truenas.com>
+Date: Wed, 20 May 2026 09:42:19 +1000
+Subject: [PATCH 3/3] linux/super: properly apply ro/rw mount option to
+ superblock
+
+f5a9e3a622 changed how SB_RDONLY was applied to the new mount in a way
+that was too simplistic - it only sets readonly on the filesystem if the
+mount was 'ro', but it never clears it if the mount was 'rw'. This
+causes the 'rw' option to effectively be ignored, and so the readonly=
+property wins out.
+
+This fixes it by doing it the right way: checking the flags mask to see
+if it was actually provided as an option at all, and then setting or
+clearing it as appropriate.
+
+Sponsored-by: TrueNAS
+Signed-off-by: Rob Norris <rob.norris@truenas.com>
+---
+ module/os/linux/zfs/zpl_super.c | 11 ++++++++---
+ 1 file changed, 8 insertions(+), 3 deletions(-)
+
+diff --git a/module/os/linux/zfs/zpl_super.c b/module/os/linux/zfs/zpl_super.c
+index c1460edd16d0..e1fa0f8e88e8 100644
+--- a/module/os/linux/zfs/zpl_super.c
++++ b/module/os/linux/zfs/zpl_super.c
+@@ -883,9 +883,14 @@ zpl_get_tree(struct fs_context *fc)
+ 	if (sb->s_root == NULL) {
+ 		vfs_t *vfs = fc->fs_private;
+ 
+-		/* Apply readonly flag as mount option */
+-		if (fc->sb_flags & SB_RDONLY) {
+-			vfs->vfs_readonly = B_TRUE;
++		/*
++		 * If SB_RDONLY was set/cleared from mount options, update
++		 * them in the options struct so we set up the filesystem
++		 * in the proper state.
++		 */
++		if (fc->sb_flags_mask & SB_RDONLY) {
++			vfs->vfs_readonly =
++			    (fc->sb_flags & SB_RDONLY) ? B_TRUE : B_FALSE;
+ 			vfs->vfs_do_readonly = B_TRUE;
+ 		}
+ 
diff --git a/sys-fs/zfs/zfs-2.1.16.ebuild b/sys-fs/zfs/zfs-2.1.16.ebuild
new file mode 100644
index 000000000000..420f3706569c
--- /dev/null
+++ b/sys-fs/zfs/zfs-2.1.16.ebuild
@@ -0,0 +1,311 @@
+# Copyright 1999-2025 Gentoo Authors
+# Distributed under the terms of the GNU General Public License v2
+
+EAPI=8
+
+DISTUTILS_OPTIONAL=1
+DISTUTILS_USE_PEP517=setuptools
+PYTHON_COMPAT=( python3_{13..14} )
+
+inherit autotools bash-completion-r1 dist-kernel-utils distutils-r1 flag-o-matic linux-info pam systemd udev usr-ldscript
+
+DESCRIPTION="Userland utilities for ZFS Linux kernel module"
+HOMEPAGE="https://github.com/openzfs/zfs"
+
+if [[ ${PV} == "9999" ]]; then
+	inherit git-r3
+	EGIT_REPO_URI="https://github.com/openzfs/zfs.git"
+else
+	VERIFY_SIG_OPENPGP_KEY_PATH=/usr/share/openpgp-keys/openzfs.asc
+	inherit verify-sig
+
+	MY_P="${P/_rc/-rc}"
+	SRC_URI="https://github.com/openzfs/${PN}/releases/download/${MY_P}/${MY_P}.tar.gz"
+	SRC_URI+=" verify-sig? ( https://github.com/openzfs/${PN}/releases/download/${MY_P}/${MY_P}.tar.gz.asc )"
+	S="${WORKDIR}/${P%_rc?}"
+
+	if [[ ${PV} != *_rc* ]]; then
+		KEYWORDS="amd64 arm64 ppc64 ~riscv ~sparc"
+	fi
+fi
+
+LICENSE="BSD-2 CDDL MIT"
+# just libzfs soname major for now.
+# possible candidates: libuutil, libzpool, libnvpair. Those do not provide stable abi, but are considered.
+# see libsoversion_check() below as well
+SLOT="0/5"
+IUSE="custom-cflags debug dist-kernel kernel-builtin minimal nls pam python +rootfs selinux test-suite"
+
+DEPEND="
+	net-libs/libtirpc:=
+	sys-apps/util-linux
+	virtual/zlib:=
+	virtual/libudev:=
+	dev-libs/openssl:0=
+	!minimal? ( ${PYTHON_DEPS} )
+	pam? ( sys-libs/pam )
+	python? (
+		$(python_gen_cond_dep 'dev-python/cffi[${PYTHON_USEDEP}]' 'python*')
+	)
+"
+
+BDEPEND="app-alternatives/awk
+	virtual/pkgconfig
+	nls? ( sys-devel/gettext )
+	python? (
+		${DISTUTILS_DEPS}
+		|| (
+			dev-python/packaging[${PYTHON_USEDEP}]
+			dev-python/distlib[${PYTHON_USEDEP}]
+		)
+	)
+"
+
+if [[ ${PV} != "9999" ]] ; then
+	BDEPEND+=" verify-sig? ( sec-keys/openpgp-keys-openzfs )"
+fi
+
+# awk is used for some scripts, completions, and the Dracut module
+RDEPEND="${DEPEND}
+	!kernel-builtin? ( ~sys-fs/zfs-kmod-${PV}:= )
+	!prefix? ( virtual/udev )
+	sys-fs/udev-init-scripts
+	app-alternatives/awk
+	dist-kernel? ( virtual/dist-kernel:= )
+	rootfs? (
+		app-alternatives/cpio
+		app-misc/pax-utils
+	)
+	selinux? ( sec-policy/selinux-zfs )
+	test-suite? (
+		app-shells/ksh
+		sys-apps/kmod[tools]
+		sys-apps/util-linux
+		app-alternatives/bc
+		sys-block/parted
+		sys-fs/lsscsi
+		sys-fs/mdadm
+		sys-process/procps
+	)
+"
+
+# PDEPEND in this form is needed to trick portage suggest
+# enabling dist-kernel if only 1 package have it set, without suggesting to disable
+PDEPEND="dist-kernel? ( ~sys-fs/zfs-kmod-${PV}[dist-kernel] )"
+
+REQUIRED_USE="
+	!minimal? ( ${PYTHON_REQUIRED_USE} )
+	python? ( !minimal )
+	test-suite? ( !minimal )
+"
+
+RESTRICT="test"
+
+PATCHES=(
+	# bug #854333
+	"${FILESDIR}"/2.1.5-r2-dracut-non-root.patch
+
+	"${FILESDIR}"/2.1.5-dracut-zfs-missing.patch
+)
+
+pkg_pretend() {
+	use rootfs || return 0
+
+	if has_version virtual/dist-kernel && ! use dist-kernel; then
+		ewarn "You have virtual/dist-kernel installed, but"
+		ewarn "USE=\"dist-kernel\" is not enabled for ${CATEGORY}/${PN}"
+		ewarn "It's recommended to globally enable dist-kernel USE flag"
+		ewarn "to auto-trigger initrd rebuilds with kernel updates"
+	fi
+}
+
+pkg_setup() {
+	if use kernel_linux; then
+		linux-info_pkg_setup
+
+		if ! linux_config_exists; then
+			ewarn "Cannot check the linux kernel configuration."
+		else
+			if use test-suite; then
+				if linux_chkconfig_present BLK_DEV_LOOP; then
+					eerror "The ZFS test suite requires loop device support enabled."
+					eerror "Please enable it:"
+					eerror "    CONFIG_BLK_DEV_LOOP=y"
+					eerror "in /usr/src/linux/.config or"
+					eerror "    Device Drivers --->"
+					eerror "        Block devices --->"
+					eerror "            [X] Loopback device support"
+				fi
+			fi
+		fi
+	fi
+}
+
+libsoversion_check() {
+	local bugurl libzfs_sover
+	bugurl="https://bugs.gentoo.org/enter_bug.cgi?form_name=enter_bug&product=Gentoo+Linux&component=Current+packages"
+
+	libzfs_sover="$(grep 'libzfs_la_LDFLAGS += -version-info' lib/libzfs/Makefile.am \
+		| grep -Eo '[0-9]+:[0-9]+:[0-9]+')"
+	libzfs_sover="${libzfs_sover%%:*}"
+
+	if [[ ${libzfs_sover} -ne $(ver_cut 2 ${SLOT}) ]]; then
+		echo
+		eerror "BUG BUG BUG BUG BUG BUG BUG BUG"
+		eerror "ebuild subslot does not match libzfs soversion!"
+		eerror "libzfs soversion: ${libzfs_sover}"
+		eerror "ebuild value: $(ver_cut 2 ${SLOT})"
+		eerror "This is a bug in the ebuild, please use the following URL to report it"
+		eerror "${bugurl}&short_desc=${CATEGORY}%2F${P}+update+subslot"
+		echo
+		# we want to abort for releases, but just print a warning for live ebuild
+		# to keep package installable
+		[[  ${PV} == "9999" ]] || die
+	fi
+}
+
+src_prepare() {
+	default
+	libsoversion_check
+
+	# Run unconditionally (bug #792627)
+	eautoreconf
+
+	if [[ ${PV} != "9999" ]]; then
+		# Set revision number
+		sed -i "s/\(Release:\)\(.*\)1/\1\2${PR}-gentoo/" META || die "Could not set Gentoo release"
+	fi
+
+	if use python; then
+		pushd contrib/pyzfs >/dev/null || die
+		distutils-r1_src_prepare
+		popd >/dev/null || die
+	fi
+
+	# prevent errors showing up on zfs-mount stop, #647688
+	# openrc will unmount all filesystems anyway.
+	sed -i "/^ZFS_UNMOUNT=/ s/yes/no/" "etc/default/zfs.in" || die
+}
+
+src_configure() {
+	use custom-cflags || strip-flags
+	use minimal || python_setup
+
+	# All the same issue:
+	# Segfaults w/ GCC 12 and 'zfs send'
+	# bug #856373
+	# https://github.com/openzfs/zfs/issues/13620
+	# https://github.com/openzfs/zfs/issues/13605
+	append-flags -fno-tree-vectorize
+
+	local myconf=(
+		--bindir="${EPREFIX}/bin"
+		--enable-shared
+		--enable-sysvinit
+		--localstatedir="${EPREFIX}/var"
+		--sbindir="${EPREFIX}/sbin"
+		--with-config=user
+		--with-dracutdir="${EPREFIX}/usr/lib/dracut"
+		--with-linux="${KV_DIR}"
+		--with-linux-obj="${KV_OUT_DIR}"
+		--with-udevdir="$(get_udevdir)"
+		--with-pamconfigsdir="${EPREFIX}/unwanted_files"
+		--with-pammoduledir="$(getpam_mod_dir)"
+		--with-systemdunitdir="$(systemd_get_systemunitdir)"
+		--with-systemdpresetdir="$(systemd_get_systempresetdir)"
+		--with-vendor=gentoo
+		# Building zfs-mount-generator.c on musl breaks as strndupa
+		# isn't available. But systemd doesn't support musl anyway, so
+		# just disable building it.
+		# UPDATE: it has been fixed since,
+		# https://github.com/openzfs/zfs/commit/1f19826c9ac85835cbde61a7439d9d1fefe43a4a
+		# but we still leave it as this for now.
+		$(use_enable !elibc_musl systemd)
+		$(use_enable debug)
+		$(use_enable nls)
+		$(use_enable pam)
+		$(use_enable python pyzfs)
+		--disable-static
+		$(usex minimal --without-python --with-python="${EPYTHON}")
+	)
+
+	econf "${myconf[@]}"
+}
+
+src_compile() {
+	default
+	if use python; then
+		pushd contrib/pyzfs >/dev/null || die
+		distutils-r1_src_compile
+		popd >/dev/null || die
+	fi
+}
+
+src_install() {
+	default
+
+	gen_usr_ldscript -a nvpair uutil zfsbootenv zfs zfs_core zpool
+
+	use pam && { rm -rv "${ED}/unwanted_files" || die ; }
+
+	use test-suite || { rm -r "${ED}"/usr/share/zfs/{test-runner,zfs-tests,runfiles,*sh} || die ; }
+
+	find "${ED}" -name '*.la' -delete || die
+
+	dobashcomp contrib/bash_completion.d/zfs
+	bashcomp_alias zfs zpool
+
+	# strip executable bit from conf.d file
+	fperms 0644 /etc/conf.d/zfs
+
+	if use python; then
+		pushd contrib/pyzfs >/dev/null || die
+		distutils-r1_src_install
+		popd >/dev/null || die
+	fi
+
+	# enforce best available python implementation
+	use minimal || python_fix_shebang "${ED}/bin"
+}
+
+pkg_postinst() {
+	udev_reload
+
+	# we always need userspace utils in sync with zfs-kmod
+	# so force initrd update for userspace as well, to avoid
+	# situation when zfs-kmod trigger initrd rebuild before
+	# userspace component is rebuilt
+	# KV_* variables are provided by linux-info.eclass
+	if [[ -z ${ROOT} ]] && use dist-kernel; then
+		dist-kernel_reinstall_initramfs "${KV_DIR}" "${KV_FULL}"
+	fi
+
+	if use rootfs; then
+		if ! has_version sys-kernel/genkernel && ! has_version sys-kernel/dracut; then
+			elog "Root on zfs requires an initramfs to boot"
+			elog "The following packages provide one and are tested on a regular basis:"
+			elog "  sys-kernel/dracut ( preferred, module maintained by zfs developers )"
+			elog "  sys-kernel/genkernel"
+		fi
+	fi
+
+	if systemd_is_booted || has_version sys-apps/systemd; then
+		einfo "Please refer to ${EROOT}/$(systemd_get_systempresetdir)/50-zfs.preset"
+		einfo "for default zfs systemd service configuration"
+	else
+		[[ -e "${EROOT}/etc/runlevels/boot/zfs-import" ]] || \
+			einfo "You should add zfs-import to the boot runlevel."
+		[[ -e "${EROOT}/etc/runlevels/boot/zfs-load-key" ]] || \
+			einfo "You should add zfs-load-key to the boot runlevel."
+		[[ -e "${EROOT}/etc/runlevels/boot/zfs-mount" ]]|| \
+			einfo "You should add zfs-mount to the boot runlevel."
+		[[ -e "${EROOT}/etc/runlevels/default/zfs-share" ]] || \
+			einfo "You should add zfs-share to the default runlevel."
+		[[ -e "${EROOT}/etc/runlevels/default/zfs-zed" ]] || \
+			einfo "You should add zfs-zed to the default runlevel."
+	fi
+}
+
+pkg_postrm() {
+	udev_reload
+}
diff --git a/sys-fs/zfs/zfs-2.2.10.ebuild b/sys-fs/zfs/zfs-2.2.10.ebuild
new file mode 100644
index 000000000000..96df6a9a40a6
--- /dev/null
+++ b/sys-fs/zfs/zfs-2.2.10.ebuild
@@ -0,0 +1,305 @@
+# Copyright 1999-2026 Gentoo Authors
+# Distributed under the terms of the GNU General Public License v2
+
+EAPI=8
+
+DISTUTILS_OPTIONAL=1
+DISTUTILS_USE_PEP517=setuptools
+PYTHON_COMPAT=( python3_{13..14} )
+
+inherit autotools bash-completion-r1 dist-kernel-utils distutils-r1 flag-o-matic linux-info
+inherit pam systemd udev usr-ldscript
+
+DESCRIPTION="Userland utilities for ZFS Linux kernel module"
+HOMEPAGE="https://github.com/openzfs/zfs"
+
+if [[ ${PV} == "9999" ]]; then
+	inherit git-r3
+	EGIT_REPO_URI="https://github.com/openzfs/zfs.git"
+else
+	VERIFY_SIG_OPENPGP_KEY_PATH=/usr/share/openpgp-keys/openzfs.asc
+	inherit verify-sig
+
+	MY_P="${P/_rc/-rc}"
+	SRC_URI="https://github.com/openzfs/${PN}/releases/download/${MY_P}/${MY_P}.tar.gz"
+	SRC_URI+=" verify-sig? ( https://github.com/openzfs/${PN}/releases/download/${MY_P}/${MY_P}.tar.gz.asc )"
+	S="${WORKDIR}/${MY_P}"
+
+	if [[ ${PV} != *_rc* ]]; then
+		KEYWORDS="~amd64 ~arm64 ~loong ~ppc64 ~riscv ~sparc"
+	fi
+fi
+
+LICENSE="BSD-2 CDDL MIT"
+# just libzfs soname major for now.
+# possible candidates: libuutil, libzpool, libnvpair. Those do not provide stable abi, but are considered.
+# see libsoversion_check() below as well
+SLOT="0/5"
+IUSE="custom-cflags debug dist-kernel kernel-builtin minimal nls pam python +rootfs selinux test-suite unwind"
+
+DEPEND="
+	dev-libs/openssl:=
+	net-libs/libtirpc:=
+	sys-apps/util-linux
+	virtual/zlib:=
+	virtual/libudev:=
+	!minimal? ( ${PYTHON_DEPS} )
+	pam? ( sys-libs/pam )
+	python? (
+		$(python_gen_cond_dep 'dev-python/cffi[${PYTHON_USEDEP}]' 'python*')
+	)
+	unwind? ( sys-libs/libunwind:= )
+"
+
+BDEPEND="
+	app-alternatives/awk
+	virtual/pkgconfig
+	nls? ( sys-devel/gettext )
+	python? (
+		${DISTUTILS_DEPS}
+		|| (
+			dev-python/packaging[${PYTHON_USEDEP}]
+			dev-python/distlib[${PYTHON_USEDEP}]
+		)
+	)
+"
+
+if [[ ${PV} != "9999" ]] ; then
+	BDEPEND+=" verify-sig? ( sec-keys/openpgp-keys-openzfs )"
+fi
+
+# awk is used for some scripts, completions, and the Dracut module
+RDEPEND="
+	${DEPEND}
+	!kernel-builtin? ( ~sys-fs/zfs-kmod-${PV}:= )
+	!prefix? ( virtual/udev )
+	app-alternatives/awk
+	sys-fs/udev-init-scripts
+	dist-kernel? ( virtual/dist-kernel:= )
+	rootfs? (
+		app-alternatives/cpio
+		app-misc/pax-utils
+	)
+	selinux? ( sec-policy/selinux-zfs )
+	test-suite? (
+		app-shells/ksh
+		sys-apps/kmod[tools]
+		sys-apps/util-linux
+		app-alternatives/bc
+		sys-block/parted
+		sys-fs/lsscsi
+		sys-fs/mdadm
+		sys-process/procps
+	)
+"
+
+# PDEPEND in this form is needed to trick portage suggest
+# enabling dist-kernel if only 1 package have it set, without suggesting to disable
+PDEPEND="dist-kernel? ( ~sys-fs/zfs-kmod-${PV}[dist-kernel] )"
+
+REQUIRED_USE="
+	!minimal? ( ${PYTHON_REQUIRED_USE} )
+	python? ( !minimal )
+	test-suite? ( !minimal )
+"
+
+RESTRICT="test"
+
+pkg_pretend() {
+	use rootfs || return 0
+
+	if has_version virtual/dist-kernel && ! use dist-kernel; then
+		ewarn "You have virtual/dist-kernel installed, but"
+		ewarn "USE=\"dist-kernel\" is not enabled for ${CATEGORY}/${PN}"
+		ewarn "It's recommended to globally enable dist-kernel USE flag"
+		ewarn "to auto-trigger initrd rebuilds with kernel updates"
+	fi
+}
+
+pkg_setup() {
+	if use kernel_linux; then
+		linux-info_pkg_setup
+
+		if ! linux_config_exists; then
+			ewarn "Cannot check the linux kernel configuration."
+		else
+			if use test-suite; then
+				if linux_chkconfig_present BLK_DEV_LOOP; then
+					eerror "The ZFS test suite requires loop device support enabled."
+					eerror "Please enable it:"
+					eerror "    CONFIG_BLK_DEV_LOOP=y"
+					eerror "in /usr/src/linux/.config or"
+					eerror "    Device Drivers --->"
+					eerror "        Block devices --->"
+					eerror "            [X] Loopback device support"
+				fi
+			fi
+		fi
+	fi
+}
+
+libsoversion_check() {
+	local bugurl libzfs_sover
+	bugurl="https://bugs.gentoo.org/enter_bug.cgi?form_name=enter_bug&product=Gentoo+Linux&component=Current+packages"
+
+	libzfs_sover="$(grep 'libzfs_la_LDFLAGS += -version-info' lib/libzfs/Makefile.am \
+		| grep -Eo '[0-9]+:[0-9]+:[0-9]+')"
+	libzfs_sover="${libzfs_sover%%:*}"
+
+	if [[ ${libzfs_sover} -ne $(ver_cut 2 ${SLOT}) ]]; then
+		echo
+		eerror "BUG BUG BUG BUG BUG BUG BUG BUG"
+		eerror "ebuild subslot does not match libzfs soversion!"
+		eerror "libzfs soversion: ${libzfs_sover}"
+		eerror "ebuild value: $(ver_cut 2 ${SLOT})"
+		eerror "This is a bug in the ebuild, please use the following URL to report it"
+		eerror "${bugurl}&short_desc=${CATEGORY}%2F${P}+update+subslot"
+		echo
+		# we want to abort for releases, but just print a warning for live ebuild
+		# to keep package installable
+		[[  ${PV} == "9999" ]] || die
+	fi
+}
+
+src_prepare() {
+	default
+	libsoversion_check
+
+	# Run unconditionally (bug #792627)
+	eautoreconf
+
+	if [[ ${PV} != "9999" ]]; then
+		# Set revision number
+		sed -i "s/\(Release:\)\(.*\)1/\1\2${PR}-gentoo/" META || die "Could not set Gentoo release"
+	fi
+
+	if use python; then
+		pushd contrib/pyzfs >/dev/null || die
+		distutils-r1_src_prepare
+		popd >/dev/null || die
+	fi
+
+	# Tries to use /etc/conf.d which we reserve for OpenRC
+	sed -i -e '/EnvironmentFile/d' etc/systemd/system/zfs*.in || die
+
+	# prevent errors showing up on zfs-mount stop, #647688
+	# openrc will unmount all filesystems anyway.
+	sed -i "/^ZFS_UNMOUNT=/ s/yes/no/" "etc/default/zfs.in" || die
+}
+
+src_configure() {
+	use custom-cflags || strip-flags
+	use minimal || python_setup
+
+	local myconf=(
+		--bindir="${EPREFIX}/bin"
+		--enable-shared
+		--enable-sysvinit
+		--localstatedir="${EPREFIX}/var"
+		--sbindir="${EPREFIX}/sbin"
+		--with-config=user
+		--with-dracutdir="${EPREFIX}/usr/lib/dracut"
+		--with-linux="${KV_DIR}"
+		--with-linux-obj="${KV_OUT_DIR}"
+		--with-udevdir="$(get_udevdir)"
+		--with-pamconfigsdir="${EPREFIX}/unwanted_files"
+		--with-pammoduledir="$(getpam_mod_dir)"
+		--with-systemdunitdir="$(systemd_get_systemunitdir)"
+		--with-systemdpresetdir="$(systemd_get_systempresetdir)"
+		--with-vendor=gentoo
+		# Building zfs-mount-generator.c on musl breaks as strndupa
+		# isn't available. But systemd doesn't support musl anyway, so
+		# just disable building it.
+		# UPDATE: it has been fixed since,
+		# https://github.com/openzfs/zfs/commit/1f19826c9ac85835cbde61a7439d9d1fefe43a4a
+		# but we still leave it as this for now.
+		$(use_enable !elibc_musl systemd)
+		$(use_enable debug)
+		$(use_enable nls)
+		$(use_enable pam)
+		$(use_enable python pyzfs)
+		$(use_with unwind libunwind)
+		--disable-static
+		$(usex minimal --without-python --with-python="${EPYTHON}")
+	)
+
+	econf "${myconf[@]}"
+}
+
+src_compile() {
+	default
+	if use python; then
+		pushd contrib/pyzfs >/dev/null || die
+		distutils-r1_src_compile
+		popd >/dev/null || die
+	fi
+}
+
+src_install() {
+	default
+
+	gen_usr_ldscript -a nvpair uutil zfsbootenv zfs zfs_core zpool
+
+	use pam && { rm -rv "${ED}/unwanted_files" || die ; }
+
+	use test-suite || { rm -r "${ED}"/usr/share/zfs/{test-runner,zfs-tests,runfiles,*sh} || die ; }
+
+	find "${ED}" -name '*.la' -delete || die
+
+	dobashcomp contrib/bash_completion.d/zfs
+	bashcomp_alias zfs zpool
+
+	# strip executable bit from conf.d file
+	fperms 0644 /etc/conf.d/zfs
+
+	if use python; then
+		pushd contrib/pyzfs >/dev/null || die
+		distutils-r1_src_install
+		popd >/dev/null || die
+	fi
+
+	# enforce best available python implementation
+	use minimal || python_fix_shebang "${ED}/bin"
+}
+
+pkg_postinst() {
+	udev_reload
+
+	# we always need userspace utils in sync with zfs-kmod
+	# so force initrd update for userspace as well, to avoid
+	# situation when zfs-kmod trigger initrd rebuild before
+	# userspace component is rebuilt
+	# KV_* variables are provided by linux-info.eclass
+	if [[ -z ${ROOT} ]] && use dist-kernel; then
+		dist-kernel_reinstall_initramfs "${KV_DIR}" "${KV_FULL}"
+	fi
+
+	if use rootfs; then
+		if ! has_version sys-kernel/genkernel && ! has_version sys-kernel/dracut; then
+			elog "Root on zfs requires an initramfs to boot"
+			elog "The following packages provide one and are tested on a regular basis:"
+			elog "  sys-kernel/dracut ( preferred, module maintained by zfs developers )"
+			elog "  sys-kernel/genkernel"
+		fi
+	fi
+
+	if systemd_is_booted || has_version sys-apps/systemd; then
+		einfo "Please refer to $(systemd_get_systempresetdir)/50-zfs.preset"
+		einfo "for default zfs systemd service configuration"
+	else
+		[[ -e "${EROOT}/etc/runlevels/boot/zfs-import" ]] || \
+			einfo "You should add zfs-import to the boot runlevel."
+		[[ -e "${EROOT}/etc/runlevels/boot/zfs-load-key" ]] || \
+			einfo "You should add zfs-load-key to the boot runlevel."
+		[[ -e "${EROOT}/etc/runlevels/boot/zfs-mount" ]]|| \
+			einfo "You should add zfs-mount to the boot runlevel."
+		[[ -e "${EROOT}/etc/runlevels/default/zfs-share" ]] || \
+			einfo "You should add zfs-share to the default runlevel."
+		[[ -e "${EROOT}/etc/runlevels/default/zfs-zed" ]] || \
+			einfo "You should add zfs-zed to the default runlevel."
+	fi
+}
+
+pkg_postrm() {
+	udev_reload
+}
diff --git a/sys-fs/zfs/zfs-2.2.8.ebuild b/sys-fs/zfs/zfs-2.2.8.ebuild
new file mode 100644
index 000000000000..360ba76f41d7
--- /dev/null
+++ b/sys-fs/zfs/zfs-2.2.8.ebuild
@@ -0,0 +1,308 @@
+# Copyright 1999-2025 Gentoo Authors
+# Distributed under the terms of the GNU General Public License v2
+
+EAPI=8
+
+DISTUTILS_OPTIONAL=1
+DISTUTILS_USE_PEP517=setuptools
+PYTHON_COMPAT=( python3_{13..14} )
+
+inherit autotools bash-completion-r1 dist-kernel-utils distutils-r1 flag-o-matic linux-info pam systemd udev usr-ldscript
+
+DESCRIPTION="Userland utilities for ZFS Linux kernel module"
+HOMEPAGE="https://github.com/openzfs/zfs"
+
+if [[ ${PV} == "9999" ]]; then
+	inherit git-r3
+	EGIT_REPO_URI="https://github.com/openzfs/zfs.git"
+else
+	VERIFY_SIG_OPENPGP_KEY_PATH=/usr/share/openpgp-keys/openzfs.asc
+	inherit verify-sig
+
+	MY_P="${P/_rc/-rc}"
+	SRC_URI="https://github.com/openzfs/${PN}/releases/download/${MY_P}/${MY_P}.tar.gz"
+	SRC_URI+=" verify-sig? ( https://github.com/openzfs/${PN}/releases/download/${MY_P}/${MY_P}.tar.gz.asc )"
+	S="${WORKDIR}/${MY_P}"
+
+	if [[ ${PV} != *_rc* ]]; then
+		KEYWORDS="amd64 arm64 ~loong ppc64 ~riscv ~sparc"
+	fi
+fi
+
+LICENSE="BSD-2 CDDL MIT"
+# just libzfs soname major for now.
+# possible candidates: libuutil, libzpool, libnvpair. Those do not provide stable abi, but are considered.
+# see libsoversion_check() below as well
+SLOT="0/5"
+IUSE="custom-cflags debug dist-kernel kernel-builtin minimal nls pam python +rootfs selinux test-suite unwind"
+
+DEPEND="
+	dev-libs/openssl:=
+	net-libs/libtirpc:=
+	sys-apps/util-linux
+	virtual/zlib:=
+	virtual/libudev:=
+	!minimal? ( ${PYTHON_DEPS} )
+	pam? ( sys-libs/pam )
+	python? (
+		$(python_gen_cond_dep 'dev-python/cffi[${PYTHON_USEDEP}]' 'python*')
+	)
+	unwind? ( sys-libs/libunwind:= )
+"
+
+BDEPEND="
+	app-alternatives/awk
+	virtual/pkgconfig
+	nls? ( sys-devel/gettext )
+	python? (
+		${DISTUTILS_DEPS}
+		|| (
+			dev-python/packaging[${PYTHON_USEDEP}]
+			dev-python/distlib[${PYTHON_USEDEP}]
+		)
+	)
+"
+
+if [[ ${PV} != "9999" ]] ; then
+	BDEPEND+=" verify-sig? ( sec-keys/openpgp-keys-openzfs )"
+fi
+
+# awk is used for some scripts, completions, and the Dracut module
+RDEPEND="
+	${DEPEND}
+	!kernel-builtin? ( ~sys-fs/zfs-kmod-${PV}:= )
+	!prefix? ( virtual/udev )
+	app-alternatives/awk
+	sys-fs/udev-init-scripts
+	dist-kernel? ( virtual/dist-kernel:= )
+	rootfs? (
+		app-alternatives/cpio
+		app-misc/pax-utils
+	)
+	selinux? ( sec-policy/selinux-zfs )
+	test-suite? (
+		app-shells/ksh
+		sys-apps/kmod[tools]
+		sys-apps/util-linux
+		app-alternatives/bc
+		sys-block/parted
+		sys-fs/lsscsi
+		sys-fs/mdadm
+		sys-process/procps
+	)
+"
+
+# PDEPEND in this form is needed to trick portage suggest
+# enabling dist-kernel if only 1 package have it set, without suggesting to disable
+PDEPEND="dist-kernel? ( ~sys-fs/zfs-kmod-${PV}[dist-kernel] )"
+
+REQUIRED_USE="
+	!minimal? ( ${PYTHON_REQUIRED_USE} )
+	python? ( !minimal )
+	test-suite? ( !minimal )
+"
+
+RESTRICT="test"
+
+PATCHES=(
+	"${FILESDIR}"/2.1.5-dracut-zfs-missing.patch
+)
+
+pkg_pretend() {
+	use rootfs || return 0
+
+	if has_version virtual/dist-kernel && ! use dist-kernel; then
+		ewarn "You have virtual/dist-kernel installed, but"
+		ewarn "USE=\"dist-kernel\" is not enabled for ${CATEGORY}/${PN}"
+		ewarn "It's recommended to globally enable dist-kernel USE flag"
+		ewarn "to auto-trigger initrd rebuilds with kernel updates"
+	fi
+}
+
+pkg_setup() {
+	if use kernel_linux; then
+		linux-info_pkg_setup
+
+		if ! linux_config_exists; then
+			ewarn "Cannot check the linux kernel configuration."
+		else
+			if use test-suite; then
+				if linux_chkconfig_present BLK_DEV_LOOP; then
+					eerror "The ZFS test suite requires loop device support enabled."
+					eerror "Please enable it:"
+					eerror "    CONFIG_BLK_DEV_LOOP=y"
+					eerror "in /usr/src/linux/.config or"
+					eerror "    Device Drivers --->"
+					eerror "        Block devices --->"
+					eerror "            [X] Loopback device support"
+				fi
+			fi
+		fi
+	fi
+}
+
+libsoversion_check() {
+	local bugurl libzfs_sover
+	bugurl="https://bugs.gentoo.org/enter_bug.cgi?form_name=enter_bug&product=Gentoo+Linux&component=Current+packages"
+
+	libzfs_sover="$(grep 'libzfs_la_LDFLAGS += -version-info' lib/libzfs/Makefile.am \
+		| grep -Eo '[0-9]+:[0-9]+:[0-9]+')"
+	libzfs_sover="${libzfs_sover%%:*}"
+
+	if [[ ${libzfs_sover} -ne $(ver_cut 2 ${SLOT}) ]]; then
+		echo
+		eerror "BUG BUG BUG BUG BUG BUG BUG BUG"
+		eerror "ebuild subslot does not match libzfs soversion!"
+		eerror "libzfs soversion: ${libzfs_sover}"
+		eerror "ebuild value: $(ver_cut 2 ${SLOT})"
+		eerror "This is a bug in the ebuild, please use the following URL to report it"
+		eerror "${bugurl}&short_desc=${CATEGORY}%2F${P}+update+subslot"
+		echo
+		# we want to abort for releases, but just print a warning for live ebuild
+		# to keep package installable
+		[[  ${PV} == "9999" ]] || die
+	fi
+}
+
+src_prepare() {
+	default
+	libsoversion_check
+
+	# Run unconditionally (bug #792627)
+	eautoreconf
+
+	if [[ ${PV} != "9999" ]]; then
+		# Set revision number
+		sed -i "s/\(Release:\)\(.*\)1/\1\2${PR}-gentoo/" META || die "Could not set Gentoo release"
+	fi
+
+	if use python; then
+		pushd contrib/pyzfs >/dev/null || die
+		distutils-r1_src_prepare
+		popd >/dev/null || die
+	fi
+
+	# Tries to use /etc/conf.d which we reserve for OpenRC
+	sed -i -e '/EnvironmentFile/d' etc/systemd/system/zfs*.in || die
+
+	# prevent errors showing up on zfs-mount stop, #647688
+	# openrc will unmount all filesystems anyway.
+	sed -i "/^ZFS_UNMOUNT=/ s/yes/no/" "etc/default/zfs.in" || die
+}
+
+src_configure() {
+	use custom-cflags || strip-flags
+	use minimal || python_setup
+
+	local myconf=(
+		--bindir="${EPREFIX}/bin"
+		--enable-shared
+		--enable-sysvinit
+		--localstatedir="${EPREFIX}/var"
+		--sbindir="${EPREFIX}/sbin"
+		--with-config=user
+		--with-dracutdir="${EPREFIX}/usr/lib/dracut"
+		--with-linux="${KV_DIR}"
+		--with-linux-obj="${KV_OUT_DIR}"
+		--with-udevdir="$(get_udevdir)"
+		--with-pamconfigsdir="${EPREFIX}/unwanted_files"
+		--with-pammoduledir="$(getpam_mod_dir)"
+		--with-systemdunitdir="$(systemd_get_systemunitdir)"
+		--with-systemdpresetdir="$(systemd_get_systempresetdir)"
+		--with-vendor=gentoo
+		# Building zfs-mount-generator.c on musl breaks as strndupa
+		# isn't available. But systemd doesn't support musl anyway, so
+		# just disable building it.
+		# UPDATE: it has been fixed since,
+		# https://github.com/openzfs/zfs/commit/1f19826c9ac85835cbde61a7439d9d1fefe43a4a
+		# but we still leave it as this for now.
+		$(use_enable !elibc_musl systemd)
+		$(use_enable debug)
+		$(use_enable nls)
+		$(use_enable pam)
+		$(use_enable python pyzfs)
+		$(use_with unwind libunwind)
+		--disable-static
+		$(usex minimal --without-python --with-python="${EPYTHON}")
+	)
+
+	econf "${myconf[@]}"
+}
+
+src_compile() {
+	default
+	if use python; then
+		pushd contrib/pyzfs >/dev/null || die
+		distutils-r1_src_compile
+		popd >/dev/null || die
+	fi
+}
+
+src_install() {
+	default
+
+	gen_usr_ldscript -a nvpair uutil zfsbootenv zfs zfs_core zpool
+
+	use pam && { rm -rv "${ED}/unwanted_files" || die ; }
+
+	use test-suite || { rm -r "${ED}"/usr/share/zfs/{test-runner,zfs-tests,runfiles,*sh} || die ; }
+
+	find "${ED}" -name '*.la' -delete || die
+
+	dobashcomp contrib/bash_completion.d/zfs
+	bashcomp_alias zfs zpool
+
+	# strip executable bit from conf.d file
+	fperms 0644 /etc/conf.d/zfs
+
+	if use python; then
+		pushd contrib/pyzfs >/dev/null || die
+		distutils-r1_src_install
+		popd >/dev/null || die
+	fi
+
+	# enforce best available python implementation
+	use minimal || python_fix_shebang "${ED}/bin"
+}
+
+pkg_postinst() {
+	udev_reload
+
+	# we always need userspace utils in sync with zfs-kmod
+	# so force initrd update for userspace as well, to avoid
+	# situation when zfs-kmod trigger initrd rebuild before
+	# userspace component is rebuilt
+	# KV_* variables are provided by linux-info.eclass
+	if [[ -z ${ROOT} ]] && use dist-kernel; then
+		dist-kernel_reinstall_initramfs "${KV_DIR}" "${KV_FULL}"
+	fi
+
+	if use rootfs; then
+		if ! has_version sys-kernel/genkernel && ! has_version sys-kernel/dracut; then
+			elog "Root on zfs requires an initramfs to boot"
+			elog "The following packages provide one and are tested on a regular basis:"
+			elog "  sys-kernel/dracut ( preferred, module maintained by zfs developers )"
+			elog "  sys-kernel/genkernel"
+		fi
+	fi
+
+	if systemd_is_booted || has_version sys-apps/systemd; then
+		einfo "Please refer to ${EROOT}/$(systemd_get_systempresetdir)/50-zfs.preset"
+		einfo "for default zfs systemd service configuration"
+	else
+		[[ -e "${EROOT}/etc/runlevels/boot/zfs-import" ]] || \
+			einfo "You should add zfs-import to the boot runlevel."
+		[[ -e "${EROOT}/etc/runlevels/boot/zfs-load-key" ]] || \
+			einfo "You should add zfs-load-key to the boot runlevel."
+		[[ -e "${EROOT}/etc/runlevels/boot/zfs-mount" ]]|| \
+			einfo "You should add zfs-mount to the boot runlevel."
+		[[ -e "${EROOT}/etc/runlevels/default/zfs-share" ]] || \
+			einfo "You should add zfs-share to the default runlevel."
+		[[ -e "${EROOT}/etc/runlevels/default/zfs-zed" ]] || \
+			einfo "You should add zfs-zed to the default runlevel."
+	fi
+}
+
+pkg_postrm() {
+	udev_reload
+}
diff --git a/sys-fs/zfs/zfs-2.2.9.ebuild b/sys-fs/zfs/zfs-2.2.9.ebuild
new file mode 100644
index 000000000000..49cd49f5f465
--- /dev/null
+++ b/sys-fs/zfs/zfs-2.2.9.ebuild
@@ -0,0 +1,311 @@
+# Copyright 1999-2025 Gentoo Authors
+# Distributed under the terms of the GNU General Public License v2
+
+EAPI=8
+
+DISTUTILS_OPTIONAL=1
+DISTUTILS_USE_PEP517=setuptools
+PYTHON_COMPAT=( python3_{13..14} )
+
+inherit autotools bash-completion-r1 dist-kernel-utils distutils-r1 flag-o-matic linux-info
+inherit pam systemd udev usr-ldscript
+
+DESCRIPTION="Userland utilities for ZFS Linux kernel module"
+HOMEPAGE="https://github.com/openzfs/zfs"
+
+if [[ ${PV} == "9999" ]]; then
+	inherit git-r3
+	EGIT_REPO_URI="https://github.com/openzfs/zfs.git"
+else
+	VERIFY_SIG_OPENPGP_KEY_PATH=/usr/share/openpgp-keys/openzfs.asc
+	inherit verify-sig
+
+	MY_P="${P/_rc/-rc}"
+	SRC_URI="https://github.com/openzfs/${PN}/releases/download/${MY_P}/${MY_P}.tar.gz"
+	SRC_URI+=" verify-sig? ( https://github.com/openzfs/${PN}/releases/download/${MY_P}/${MY_P}.tar.gz.asc )"
+	S="${WORKDIR}/${MY_P}"
+
+	if [[ ${PV} != *_rc* ]]; then
+		KEYWORDS="~amd64 ~arm64 ~loong ~ppc64 ~riscv ~sparc"
+	fi
+fi
+
+LICENSE="BSD-2 CDDL MIT"
+# just libzfs soname major for now.
+# possible candidates: libuutil, libzpool, libnvpair. Those do not provide stable abi, but are considered.
+# see libsoversion_check() below as well
+SLOT="0/5"
+IUSE="custom-cflags debug dist-kernel kernel-builtin minimal nls pam python +rootfs selinux test-suite unwind"
+
+DEPEND="
+	dev-libs/openssl:=
+	net-libs/libtirpc:=
+	sys-apps/util-linux
+	virtual/zlib:=
+	virtual/libudev:=
+	!minimal? ( ${PYTHON_DEPS} )
+	pam? ( sys-libs/pam )
+	python? (
+		$(python_gen_cond_dep 'dev-python/cffi[${PYTHON_USEDEP}]' 'python*')
+	)
+	unwind? ( sys-libs/libunwind:= )
+"
+
+BDEPEND="
+	app-alternatives/awk
+	virtual/pkgconfig
+	nls? ( sys-devel/gettext )
+	python? (
+		${DISTUTILS_DEPS}
+		|| (
+			dev-python/packaging[${PYTHON_USEDEP}]
+			dev-python/distlib[${PYTHON_USEDEP}]
+		)
+	)
+"
+
+if [[ ${PV} != "9999" ]] ; then
+	BDEPEND+=" verify-sig? ( sec-keys/openpgp-keys-openzfs )"
+fi
+
+# awk is used for some scripts, completions, and the Dracut module
+RDEPEND="
+	${DEPEND}
+	!kernel-builtin? ( ~sys-fs/zfs-kmod-${PV}:= )
+	!prefix? ( virtual/udev )
+	app-alternatives/awk
+	sys-fs/udev-init-scripts
+	dist-kernel? ( virtual/dist-kernel:= )
+	rootfs? (
+		app-alternatives/cpio
+		app-misc/pax-utils
+	)
+	selinux? ( sec-policy/selinux-zfs )
+	test-suite? (
+		app-shells/ksh
+		sys-apps/kmod[tools]
+		sys-apps/util-linux
+		app-alternatives/bc
+		sys-block/parted
+		sys-fs/lsscsi
+		sys-fs/mdadm
+		sys-process/procps
+	)
+"
+
+# PDEPEND in this form is needed to trick portage suggest
+# enabling dist-kernel if only 1 package have it set, without suggesting to disable
+PDEPEND="dist-kernel? ( ~sys-fs/zfs-kmod-${PV}[dist-kernel] )"
+
+REQUIRED_USE="
+	!minimal? ( ${PYTHON_REQUIRED_USE} )
+	python? ( !minimal )
+	test-suite? ( !minimal )
+"
+
+RESTRICT="test"
+
+PATCHES=(
+	"${FILESDIR}"/2.1.5-dracut-zfs-missing.patch
+	"${FILESDIR}"/2.3.4-musl.patch
+	"${FILESDIR}"/2.2.9-nfs-truncate-shares.patch
+)
+
+pkg_pretend() {
+	use rootfs || return 0
+
+	if has_version virtual/dist-kernel && ! use dist-kernel; then
+		ewarn "You have virtual/dist-kernel installed, but"
+		ewarn "USE=\"dist-kernel\" is not enabled for ${CATEGORY}/${PN}"
+		ewarn "It's recommended to globally enable dist-kernel USE flag"
+		ewarn "to auto-trigger initrd rebuilds with kernel updates"
+	fi
+}
+
+pkg_setup() {
+	if use kernel_linux; then
+		linux-info_pkg_setup
+
+		if ! linux_config_exists; then
+			ewarn "Cannot check the linux kernel configuration."
+		else
+			if use test-suite; then
+				if linux_chkconfig_present BLK_DEV_LOOP; then
+					eerror "The ZFS test suite requires loop device support enabled."
+					eerror "Please enable it:"
+					eerror "    CONFIG_BLK_DEV_LOOP=y"
+					eerror "in /usr/src/linux/.config or"
+					eerror "    Device Drivers --->"
+					eerror "        Block devices --->"
+					eerror "            [X] Loopback device support"
+				fi
+			fi
+		fi
+	fi
+}
+
+libsoversion_check() {
+	local bugurl libzfs_sover
+	bugurl="https://bugs.gentoo.org/enter_bug.cgi?form_name=enter_bug&product=Gentoo+Linux&component=Current+packages"
+
+	libzfs_sover="$(grep 'libzfs_la_LDFLAGS += -version-info' lib/libzfs/Makefile.am \
+		| grep -Eo '[0-9]+:[0-9]+:[0-9]+')"
+	libzfs_sover="${libzfs_sover%%:*}"
+
+	if [[ ${libzfs_sover} -ne $(ver_cut 2 ${SLOT}) ]]; then
+		echo
+		eerror "BUG BUG BUG BUG BUG BUG BUG BUG"
+		eerror "ebuild subslot does not match libzfs soversion!"
+		eerror "libzfs soversion: ${libzfs_sover}"
+		eerror "ebuild value: $(ver_cut 2 ${SLOT})"
+		eerror "This is a bug in the ebuild, please use the following URL to report it"
+		eerror "${bugurl}&short_desc=${CATEGORY}%2F${P}+update+subslot"
+		echo
+		# we want to abort for releases, but just print a warning for live ebuild
+		# to keep package installable
+		[[  ${PV} == "9999" ]] || die
+	fi
+}
+
+src_prepare() {
+	default
+	libsoversion_check
+
+	# Run unconditionally (bug #792627)
+	eautoreconf
+
+	if [[ ${PV} != "9999" ]]; then
+		# Set revision number
+		sed -i "s/\(Release:\)\(.*\)1/\1\2${PR}-gentoo/" META || die "Could not set Gentoo release"
+	fi
+
+	if use python; then
+		pushd contrib/pyzfs >/dev/null || die
+		distutils-r1_src_prepare
+		popd >/dev/null || die
+	fi
+
+	# Tries to use /etc/conf.d which we reserve for OpenRC
+	sed -i -e '/EnvironmentFile/d' etc/systemd/system/zfs*.in || die
+
+	# prevent errors showing up on zfs-mount stop, #647688
+	# openrc will unmount all filesystems anyway.
+	sed -i "/^ZFS_UNMOUNT=/ s/yes/no/" "etc/default/zfs.in" || die
+}
+
+src_configure() {
+	use custom-cflags || strip-flags
+	use minimal || python_setup
+
+	local myconf=(
+		--bindir="${EPREFIX}/bin"
+		--enable-shared
+		--enable-sysvinit
+		--localstatedir="${EPREFIX}/var"
+		--sbindir="${EPREFIX}/sbin"
+		--with-config=user
+		--with-dracutdir="${EPREFIX}/usr/lib/dracut"
+		--with-linux="${KV_DIR}"
+		--with-linux-obj="${KV_OUT_DIR}"
+		--with-udevdir="$(get_udevdir)"
+		--with-pamconfigsdir="${EPREFIX}/unwanted_files"
+		--with-pammoduledir="$(getpam_mod_dir)"
+		--with-systemdunitdir="$(systemd_get_systemunitdir)"
+		--with-systemdpresetdir="$(systemd_get_systempresetdir)"
+		--with-vendor=gentoo
+		# Building zfs-mount-generator.c on musl breaks as strndupa
+		# isn't available. But systemd doesn't support musl anyway, so
+		# just disable building it.
+		# UPDATE: it has been fixed since,
+		# https://github.com/openzfs/zfs/commit/1f19826c9ac85835cbde61a7439d9d1fefe43a4a
+		# but we still leave it as this for now.
+		$(use_enable !elibc_musl systemd)
+		$(use_enable debug)
+		$(use_enable nls)
+		$(use_enable pam)
+		$(use_enable python pyzfs)
+		$(use_with unwind libunwind)
+		--disable-static
+		$(usex minimal --without-python --with-python="${EPYTHON}")
+	)
+
+	econf "${myconf[@]}"
+}
+
+src_compile() {
+	default
+	if use python; then
+		pushd contrib/pyzfs >/dev/null || die
+		distutils-r1_src_compile
+		popd >/dev/null || die
+	fi
+}
+
+src_install() {
+	default
+
+	gen_usr_ldscript -a nvpair uutil zfsbootenv zfs zfs_core zpool
+
+	use pam && { rm -rv "${ED}/unwanted_files" || die ; }
+
+	use test-suite || { rm -r "${ED}"/usr/share/zfs/{test-runner,zfs-tests,runfiles,*sh} || die ; }
+
+	find "${ED}" -name '*.la' -delete || die
+
+	dobashcomp contrib/bash_completion.d/zfs
+	bashcomp_alias zfs zpool
+
+	# strip executable bit from conf.d file
+	fperms 0644 /etc/conf.d/zfs
+
+	if use python; then
+		pushd contrib/pyzfs >/dev/null || die
+		distutils-r1_src_install
+		popd >/dev/null || die
+	fi
+
+	# enforce best available python implementation
+	use minimal || python_fix_shebang "${ED}/bin"
+}
+
+pkg_postinst() {
+	udev_reload
+
+	# we always need userspace utils in sync with zfs-kmod
+	# so force initrd update for userspace as well, to avoid
+	# situation when zfs-kmod trigger initrd rebuild before
+	# userspace component is rebuilt
+	# KV_* variables are provided by linux-info.eclass
+	if [[ -z ${ROOT} ]] && use dist-kernel; then
+		dist-kernel_reinstall_initramfs "${KV_DIR}" "${KV_FULL}"
+	fi
+
+	if use rootfs; then
+		if ! has_version sys-kernel/genkernel && ! has_version sys-kernel/dracut; then
+			elog "Root on zfs requires an initramfs to boot"
+			elog "The following packages provide one and are tested on a regular basis:"
+			elog "  sys-kernel/dracut ( preferred, module maintained by zfs developers )"
+			elog "  sys-kernel/genkernel"
+		fi
+	fi
+
+	if systemd_is_booted || has_version sys-apps/systemd; then
+		einfo "Please refer to $(systemd_get_systempresetdir)/50-zfs.preset"
+		einfo "for default zfs systemd service configuration"
+	else
+		[[ -e "${EROOT}/etc/runlevels/boot/zfs-import" ]] || \
+			einfo "You should add zfs-import to the boot runlevel."
+		[[ -e "${EROOT}/etc/runlevels/boot/zfs-load-key" ]] || \
+			einfo "You should add zfs-load-key to the boot runlevel."
+		[[ -e "${EROOT}/etc/runlevels/boot/zfs-mount" ]]|| \
+			einfo "You should add zfs-mount to the boot runlevel."
+		[[ -e "${EROOT}/etc/runlevels/default/zfs-share" ]] || \
+			einfo "You should add zfs-share to the default runlevel."
+		[[ -e "${EROOT}/etc/runlevels/default/zfs-zed" ]] || \
+			einfo "You should add zfs-zed to the default runlevel."
+	fi
+}
+
+pkg_postrm() {
+	udev_reload
+}
diff --git a/sys-fs/zfs/zfs-2.3.4.ebuild b/sys-fs/zfs/zfs-2.3.4.ebuild
new file mode 100644
index 000000000000..e5548fd57665
--- /dev/null
+++ b/sys-fs/zfs/zfs-2.3.4.ebuild
@@ -0,0 +1,314 @@
+# Copyright 1999-2026 Gentoo Authors
+# Distributed under the terms of the GNU General Public License v2
+
+EAPI=8
+
+# Maintainers should consider lurking in the ZFS IRC channels (there's several)
+# and regularly checking ZFS GitHub issues and PRs. Look out for the 'zfs-*'
+# stable backport PRs when they're opened and subscribe to them for any important
+# cherry-picks that may be needed in advance.
+
+DISTUTILS_OPTIONAL=1
+DISTUTILS_USE_PEP517=setuptools
+PYTHON_COMPAT=( python3_{13..14} )
+
+inherit autotools bash-completion-r1 dist-kernel-utils distutils-r1 flag-o-matic linux-info pam systemd udev usr-ldscript
+
+DESCRIPTION="Userland utilities for ZFS Linux kernel module"
+HOMEPAGE="https://github.com/openzfs/zfs"
+
+if [[ ${PV} == "9999" ]]; then
+	inherit git-r3
+	EGIT_REPO_URI="https://github.com/openzfs/zfs.git"
+else
+	VERIFY_SIG_OPENPGP_KEY_PATH=/usr/share/openpgp-keys/openzfs.asc
+	inherit verify-sig
+
+	MY_P="${P/_rc/-rc}"
+	SRC_URI="https://github.com/openzfs/${PN}/releases/download/${MY_P}/${MY_P}.tar.gz"
+	SRC_URI+=" verify-sig? ( https://github.com/openzfs/${PN}/releases/download/${MY_P}/${MY_P}.tar.gz.asc )"
+	S="${WORKDIR}/${MY_P}"
+
+	if [[ ${PV} != *_rc* ]]; then
+		KEYWORDS="amd64 arm64 ~loong ppc64 ~riscv ~sparc"
+	fi
+fi
+
+LICENSE="BSD-2 CDDL MIT"
+# just libzfs soname major for now.
+# possible candidates: libuutil, libzpool, libnvpair. Those do not provide stable abi, but are considered.
+# see libsoversion_check() below as well
+SLOT="0/6"
+IUSE="custom-cflags debug dist-kernel kernel-builtin minimal nls pam python +rootfs selinux test-suite unwind"
+
+DEPEND="
+	dev-libs/openssl:=
+	net-libs/libtirpc:=
+	sys-apps/util-linux
+	virtual/zlib:=
+	virtual/libudev:=
+	!minimal? ( ${PYTHON_DEPS} )
+	pam? ( sys-libs/pam )
+	python? (
+		$(python_gen_cond_dep 'dev-python/cffi[${PYTHON_USEDEP}]' 'python*')
+	)
+	unwind? ( sys-libs/libunwind:= )
+"
+
+BDEPEND="
+	app-alternatives/awk
+	virtual/pkgconfig
+	nls? ( sys-devel/gettext )
+	python? (
+		${DISTUTILS_DEPS}
+		|| (
+			dev-python/packaging[${PYTHON_USEDEP}]
+			dev-python/distlib[${PYTHON_USEDEP}]
+		)
+	)
+"
+
+if [[ ${PV} != "9999" ]] ; then
+	BDEPEND+=" verify-sig? ( sec-keys/openpgp-keys-openzfs )"
+fi
+
+# awk is used for some scripts, completions, and the Dracut module
+RDEPEND="
+	${DEPEND}
+	!kernel-builtin? ( ~sys-fs/zfs-kmod-${PV}:= )
+	!prefix? ( virtual/udev )
+	app-alternatives/awk
+	sys-fs/udev-init-scripts
+	dist-kernel? ( virtual/dist-kernel:= )
+	rootfs? (
+		app-alternatives/cpio
+		app-misc/pax-utils
+	)
+	selinux? ( sec-policy/selinux-zfs )
+	test-suite? (
+		app-shells/ksh
+		sys-apps/kmod[tools]
+		sys-apps/util-linux
+		app-alternatives/bc
+		sys-block/parted
+		sys-fs/lsscsi
+		sys-fs/mdadm
+		sys-process/procps
+	)
+"
+
+# PDEPEND in this form is needed to trick portage suggest
+# enabling dist-kernel if only 1 package have it set, without suggesting to disable
+PDEPEND="dist-kernel? ( ~sys-fs/zfs-kmod-${PV}[dist-kernel] )"
+
+REQUIRED_USE="
+	!minimal? ( ${PYTHON_REQUIRED_USE} )
+	python? ( !minimal )
+	test-suite? ( !minimal )
+"
+
+RESTRICT="test"
+
+PATCHES=(
+	"${FILESDIR}"/2.1.5-dracut-zfs-missing.patch
+	"${FILESDIR}"/2.3.4-musl.patch
+)
+
+pkg_pretend() {
+	use rootfs || return 0
+
+	if has_version virtual/dist-kernel && ! use dist-kernel; then
+		ewarn "You have virtual/dist-kernel installed, but"
+		ewarn "USE=\"dist-kernel\" is not enabled for ${CATEGORY}/${PN}"
+		ewarn "It's recommended to globally enable dist-kernel USE flag"
+		ewarn "to auto-trigger initrd rebuilds with kernel updates"
+	fi
+}
+
+pkg_setup() {
+	if use kernel_linux; then
+		linux-info_pkg_setup
+
+		if ! linux_config_exists; then
+			ewarn "Cannot check the linux kernel configuration."
+		else
+			if use test-suite; then
+				if linux_chkconfig_present BLK_DEV_LOOP; then
+					eerror "The ZFS test suite requires loop device support enabled."
+					eerror "Please enable it:"
+					eerror "    CONFIG_BLK_DEV_LOOP=y"
+					eerror "in /usr/src/linux/.config or"
+					eerror "    Device Drivers --->"
+					eerror "        Block devices --->"
+					eerror "            [X] Loopback device support"
+				fi
+			fi
+		fi
+	fi
+}
+
+libsoversion_check() {
+	local bugurl libzfs_sover
+	bugurl="https://bugs.gentoo.org/enter_bug.cgi?form_name=enter_bug&product=Gentoo+Linux&component=Current+packages"
+
+	libzfs_sover="$(grep 'libzfs_la_LDFLAGS += -version-info' lib/libzfs/Makefile.am \
+		| grep -Eo '[0-9]+:[0-9]+:[0-9]+')"
+	libzfs_sover="${libzfs_sover%%:*}"
+
+	if [[ ${libzfs_sover} -ne $(ver_cut 2 ${SLOT}) ]]; then
+		echo
+		eerror "BUG BUG BUG BUG BUG BUG BUG BUG"
+		eerror "ebuild subslot does not match libzfs soversion!"
+		eerror "libzfs soversion: ${libzfs_sover}"
+		eerror "ebuild value: $(ver_cut 2 ${SLOT})"
+		eerror "This is a bug in the ebuild, please use the following URL to report it"
+		eerror "${bugurl}&short_desc=${CATEGORY}%2F${P}+update+subslot"
+		echo
+		# we want to abort for releases, but just print a warning for live ebuild
+		# to keep package installable
+		[[  ${PV} == "9999" ]] || die
+	fi
+}
+
+src_prepare() {
+	default
+	libsoversion_check
+
+	# Run unconditionally (bug #792627)
+	eautoreconf
+
+	if [[ ${PV} != "9999" ]]; then
+		# Set revision number
+		sed -i "s/\(Release:\)\(.*\)1/\1\2${PR}-gentoo/" META || die "Could not set Gentoo release"
+	fi
+
+	if use python; then
+		pushd contrib/pyzfs >/dev/null || die
+		distutils-r1_src_prepare
+		popd >/dev/null || die
+	fi
+
+	# Tries to use /etc/conf.d which we reserve for OpenRC
+	sed -i -e '/EnvironmentFile/d' etc/systemd/system/zfs*.in || die
+
+	# prevent errors showing up on zfs-mount stop, #647688
+	# openrc will unmount all filesystems anyway.
+	sed -i "/^ZFS_UNMOUNT=/ s/yes/no/" "etc/default/zfs.in" || die
+}
+
+src_configure() {
+	use custom-cflags || strip-flags
+	use minimal || python_setup
+
+	local myconf=(
+		--bindir="${EPREFIX}/bin"
+		--enable-shared
+		--enable-sysvinit
+		--localstatedir="${EPREFIX}/var"
+		--sbindir="${EPREFIX}/sbin"
+		--with-config=user
+		--with-dracutdir="${EPREFIX}/usr/lib/dracut"
+		--with-linux="${KV_DIR}"
+		--with-linux-obj="${KV_OUT_DIR}"
+		--with-udevdir="$(get_udevdir)"
+		--with-pamconfigsdir="${EPREFIX}/unwanted_files"
+		--with-pammoduledir="$(getpam_mod_dir)"
+		--with-systemdunitdir="$(systemd_get_systemunitdir)"
+		--with-systemdpresetdir="$(systemd_get_systempresetdir)"
+		--with-vendor=gentoo
+		# Building zfs-mount-generator.c on musl breaks as strndupa
+		# isn't available. But systemd doesn't support musl anyway, so
+		# just disable building it.
+		# UPDATE: it has been fixed since,
+		# https://github.com/openzfs/zfs/commit/1f19826c9ac85835cbde61a7439d9d1fefe43a4a
+		# but we still leave it as this for now.
+		$(use_enable !elibc_musl systemd)
+		$(use_enable debug)
+		$(use_enable nls)
+		$(use_enable pam)
+		$(use_enable python pyzfs)
+		$(use_with unwind libunwind)
+		--disable-static
+		$(usex minimal --without-python --with-python="${EPYTHON}")
+	)
+
+	econf "${myconf[@]}"
+}
+
+src_compile() {
+	default
+	if use python; then
+		pushd contrib/pyzfs >/dev/null || die
+		distutils-r1_src_compile
+		popd >/dev/null || die
+	fi
+}
+
+src_install() {
+	default
+
+	gen_usr_ldscript -a nvpair uutil zfsbootenv zfs zfs_core zpool
+
+	use pam && { rm -rv "${ED}/unwanted_files" || die ; }
+
+	use test-suite || { rm -r "${ED}"/usr/share/zfs/{test-runner,zfs-tests,runfiles,*sh} || die ; }
+
+	find "${ED}" -name '*.la' -delete || die
+
+	dobashcomp contrib/bash_completion.d/zfs
+	bashcomp_alias zfs zpool
+
+	# strip executable bit from conf.d file
+	fperms 0644 /etc/conf.d/zfs
+
+	if use python; then
+		pushd contrib/pyzfs >/dev/null || die
+		distutils-r1_src_install
+		popd >/dev/null || die
+	fi
+
+	# enforce best available python implementation
+	use minimal || python_fix_shebang "${ED}/bin"
+}
+
+pkg_postinst() {
+	udev_reload
+
+	# we always need userspace utils in sync with zfs-kmod
+	# so force initrd update for userspace as well, to avoid
+	# situation when zfs-kmod trigger initrd rebuild before
+	# userspace component is rebuilt
+	# KV_* variables are provided by linux-info.eclass
+	if [[ -z ${ROOT} ]] && use dist-kernel; then
+		dist-kernel_reinstall_initramfs "${KV_DIR}" "${KV_FULL}"
+	fi
+
+	if use rootfs; then
+		if ! has_version sys-kernel/genkernel && ! has_version sys-kernel/dracut; then
+			elog "Root on zfs requires an initramfs to boot"
+			elog "The following packages provide one and are tested on a regular basis:"
+			elog "  sys-kernel/dracut ( preferred, module maintained by zfs developers )"
+			elog "  sys-kernel/genkernel"
+		fi
+	fi
+
+	if systemd_is_booted || has_version sys-apps/systemd; then
+		einfo "Please refer to $(systemd_get_systempresetdir)/50-zfs.preset"
+		einfo "for default zfs systemd service configuration"
+	else
+		[[ -e "${EROOT}/etc/runlevels/boot/zfs-import" ]] || \
+			einfo "You should add zfs-import to the boot runlevel."
+		[[ -e "${EROOT}/etc/runlevels/boot/zfs-load-key" ]] || \
+			einfo "You should add zfs-load-key to the boot runlevel."
+		[[ -e "${EROOT}/etc/runlevels/boot/zfs-mount" ]]|| \
+			einfo "You should add zfs-mount to the boot runlevel."
+		[[ -e "${EROOT}/etc/runlevels/default/zfs-share" ]] || \
+			einfo "You should add zfs-share to the default runlevel."
+		[[ -e "${EROOT}/etc/runlevels/default/zfs-zed" ]] || \
+			einfo "You should add zfs-zed to the default runlevel."
+	fi
+}
+
+pkg_postrm() {
+	udev_reload
+}
diff --git a/sys-fs/zfs/zfs-2.3.6.ebuild b/sys-fs/zfs/zfs-2.3.6.ebuild
new file mode 100644
index 000000000000..46ccaf47ae9b
--- /dev/null
+++ b/sys-fs/zfs/zfs-2.3.6.ebuild
@@ -0,0 +1,313 @@
+# Copyright 1999-2026 Gentoo Authors
+# Distributed under the terms of the GNU General Public License v2
+
+EAPI=8
+
+# Maintainers should consider lurking in the ZFS IRC channels (there's several)
+# and regularly checking ZFS GitHub issues and PRs. Look out for the 'zfs-*'
+# stable backport PRs when they're opened and subscribe to them for any important
+# cherry-picks that may be needed in advance.
+
+DISTUTILS_OPTIONAL=1
+DISTUTILS_USE_PEP517=setuptools
+PYTHON_COMPAT=( python3_{13..14} )
+
+inherit autotools bash-completion-r1 dist-kernel-utils distutils-r1 flag-o-matic linux-info pam systemd udev usr-ldscript
+
+DESCRIPTION="Userland utilities for ZFS Linux kernel module"
+HOMEPAGE="https://github.com/openzfs/zfs"
+
+if [[ ${PV} == "9999" ]]; then
+	inherit git-r3
+	EGIT_REPO_URI="https://github.com/openzfs/zfs.git"
+else
+	VERIFY_SIG_OPENPGP_KEY_PATH=/usr/share/openpgp-keys/openzfs.asc
+	inherit verify-sig
+
+	MY_P="${P/_rc/-rc}"
+	SRC_URI="https://github.com/openzfs/${PN}/releases/download/${MY_P}/${MY_P}.tar.gz"
+	SRC_URI+=" verify-sig? ( https://github.com/openzfs/${PN}/releases/download/${MY_P}/${MY_P}.tar.gz.asc )"
+	S="${WORKDIR}/${MY_P}"
+
+	if [[ ${PV} != *_rc* ]]; then
+		KEYWORDS="amd64 arm64 ~loong ppc64 ~riscv ~sparc"
+	fi
+fi
+
+LICENSE="BSD-2 CDDL MIT"
+# just libzfs soname major for now.
+# possible candidates: libuutil, libzpool, libnvpair. Those do not provide stable abi, but are considered.
+# see libsoversion_check() below as well
+SLOT="0/6"
+IUSE="custom-cflags debug dist-kernel kernel-builtin minimal nls pam python +rootfs selinux test-suite unwind"
+
+DEPEND="
+	dev-libs/openssl:=
+	net-libs/libtirpc:=
+	sys-apps/util-linux
+	virtual/zlib:=
+	virtual/libudev:=
+	!minimal? ( ${PYTHON_DEPS} )
+	pam? ( sys-libs/pam )
+	python? (
+		$(python_gen_cond_dep 'dev-python/cffi[${PYTHON_USEDEP}]' 'python*')
+	)
+	unwind? ( sys-libs/libunwind:= )
+"
+
+BDEPEND="
+	app-alternatives/awk
+	virtual/pkgconfig
+	nls? ( sys-devel/gettext )
+	python? (
+		${DISTUTILS_DEPS}
+		|| (
+			dev-python/packaging[${PYTHON_USEDEP}]
+			dev-python/distlib[${PYTHON_USEDEP}]
+		)
+	)
+"
+
+if [[ ${PV} != "9999" ]] ; then
+	BDEPEND+=" verify-sig? ( sec-keys/openpgp-keys-openzfs )"
+fi
+
+# awk is used for some scripts, completions, and the Dracut module
+RDEPEND="
+	${DEPEND}
+	!kernel-builtin? ( ~sys-fs/zfs-kmod-${PV}:= )
+	!prefix? ( virtual/udev )
+	app-alternatives/awk
+	sys-fs/udev-init-scripts
+	dist-kernel? ( virtual/dist-kernel:= )
+	rootfs? (
+		app-alternatives/cpio
+		app-misc/pax-utils
+	)
+	selinux? ( sec-policy/selinux-zfs )
+	test-suite? (
+		app-shells/ksh
+		sys-apps/kmod[tools]
+		sys-apps/util-linux
+		app-alternatives/bc
+		sys-block/parted
+		sys-fs/lsscsi
+		sys-fs/mdadm
+		sys-process/procps
+	)
+"
+
+# PDEPEND in this form is needed to trick portage suggest
+# enabling dist-kernel if only 1 package have it set, without suggesting to disable
+PDEPEND="dist-kernel? ( ~sys-fs/zfs-kmod-${PV}[dist-kernel] )"
+
+REQUIRED_USE="
+	!minimal? ( ${PYTHON_REQUIRED_USE} )
+	python? ( !minimal )
+	test-suite? ( !minimal )
+"
+
+RESTRICT="test"
+
+PATCHES=(
+	"${FILESDIR}"/2.1.5-dracut-zfs-missing.patch
+)
+
+pkg_pretend() {
+	use rootfs || return 0
+
+	if has_version virtual/dist-kernel && ! use dist-kernel; then
+		ewarn "You have virtual/dist-kernel installed, but"
+		ewarn "USE=\"dist-kernel\" is not enabled for ${CATEGORY}/${PN}"
+		ewarn "It's recommended to globally enable dist-kernel USE flag"
+		ewarn "to auto-trigger initrd rebuilds with kernel updates"
+	fi
+}
+
+pkg_setup() {
+	if use kernel_linux; then
+		linux-info_pkg_setup
+
+		if ! linux_config_exists; then
+			ewarn "Cannot check the linux kernel configuration."
+		else
+			if use test-suite; then
+				if linux_chkconfig_present BLK_DEV_LOOP; then
+					eerror "The ZFS test suite requires loop device support enabled."
+					eerror "Please enable it:"
+					eerror "    CONFIG_BLK_DEV_LOOP=y"
+					eerror "in /usr/src/linux/.config or"
+					eerror "    Device Drivers --->"
+					eerror "        Block devices --->"
+					eerror "            [X] Loopback device support"
+				fi
+			fi
+		fi
+	fi
+}
+
+libsoversion_check() {
+	local bugurl libzfs_sover
+	bugurl="https://bugs.gentoo.org/enter_bug.cgi?form_name=enter_bug&product=Gentoo+Linux&component=Current+packages"
+
+	libzfs_sover="$(grep 'libzfs_la_LDFLAGS += -version-info' lib/libzfs/Makefile.am \
+		| grep -Eo '[0-9]+:[0-9]+:[0-9]+')"
+	libzfs_sover="${libzfs_sover%%:*}"
+
+	if [[ ${libzfs_sover} -ne $(ver_cut 2 ${SLOT}) ]]; then
+		echo
+		eerror "BUG BUG BUG BUG BUG BUG BUG BUG"
+		eerror "ebuild subslot does not match libzfs soversion!"
+		eerror "libzfs soversion: ${libzfs_sover}"
+		eerror "ebuild value: $(ver_cut 2 ${SLOT})"
+		eerror "This is a bug in the ebuild, please use the following URL to report it"
+		eerror "${bugurl}&short_desc=${CATEGORY}%2F${P}+update+subslot"
+		echo
+		# we want to abort for releases, but just print a warning for live ebuild
+		# to keep package installable
+		[[  ${PV} == "9999" ]] || die
+	fi
+}
+
+src_prepare() {
+	default
+	libsoversion_check
+
+	# Run unconditionally (bug #792627)
+	eautoreconf
+
+	if [[ ${PV} != "9999" ]]; then
+		# Set revision number
+		sed -i "s/\(Release:\)\(.*\)1/\1\2${PR}-gentoo/" META || die "Could not set Gentoo release"
+	fi
+
+	if use python; then
+		pushd contrib/pyzfs >/dev/null || die
+		distutils-r1_src_prepare
+		popd >/dev/null || die
+	fi
+
+	# Tries to use /etc/conf.d which we reserve for OpenRC
+	sed -i -e '/EnvironmentFile/d' etc/systemd/system/zfs*.in || die
+
+	# prevent errors showing up on zfs-mount stop, #647688
+	# openrc will unmount all filesystems anyway.
+	sed -i "/^ZFS_UNMOUNT=/ s/yes/no/" "etc/default/zfs.in" || die
+}
+
+src_configure() {
+	use custom-cflags || strip-flags
+	use minimal || python_setup
+
+	local myconf=(
+		--bindir="${EPREFIX}/bin"
+		--enable-shared
+		--enable-sysvinit
+		--localstatedir="${EPREFIX}/var"
+		--sbindir="${EPREFIX}/sbin"
+		--with-config=user
+		--with-dracutdir="${EPREFIX}/usr/lib/dracut"
+		--with-linux="${KV_DIR}"
+		--with-linux-obj="${KV_OUT_DIR}"
+		--with-udevdir="$(get_udevdir)"
+		--with-pamconfigsdir="${EPREFIX}/unwanted_files"
+		--with-pammoduledir="$(getpam_mod_dir)"
+		--with-systemdunitdir="$(systemd_get_systemunitdir)"
+		--with-systemdpresetdir="$(systemd_get_systempresetdir)"
+		--with-vendor=gentoo
+		# Building zfs-mount-generator.c on musl breaks as strndupa
+		# isn't available. But systemd doesn't support musl anyway, so
+		# just disable building it.
+		# UPDATE: it has been fixed since,
+		# https://github.com/openzfs/zfs/commit/1f19826c9ac85835cbde61a7439d9d1fefe43a4a
+		# but we still leave it as this for now.
+		$(use_enable !elibc_musl systemd)
+		$(use_enable debug)
+		$(use_enable nls)
+		$(use_enable pam)
+		$(use_enable python pyzfs)
+		$(use_with unwind libunwind)
+		--disable-static
+		$(usex minimal --without-python --with-python="${EPYTHON}")
+	)
+
+	econf "${myconf[@]}"
+}
+
+src_compile() {
+	default
+	if use python; then
+		pushd contrib/pyzfs >/dev/null || die
+		distutils-r1_src_compile
+		popd >/dev/null || die
+	fi
+}
+
+src_install() {
+	default
+
+	gen_usr_ldscript -a nvpair uutil zfsbootenv zfs zfs_core zpool
+
+	use pam && { rm -rv "${ED}/unwanted_files" || die ; }
+
+	use test-suite || { rm -r "${ED}"/usr/share/zfs/{test-runner,zfs-tests,runfiles,*sh} || die ; }
+
+	find "${ED}" -name '*.la' -delete || die
+
+	dobashcomp contrib/bash_completion.d/zfs
+	bashcomp_alias zfs zpool
+
+	# strip executable bit from conf.d file
+	fperms 0644 /etc/conf.d/zfs
+
+	if use python; then
+		pushd contrib/pyzfs >/dev/null || die
+		distutils-r1_src_install
+		popd >/dev/null || die
+	fi
+
+	# enforce best available python implementation
+	use minimal || python_fix_shebang "${ED}/bin"
+}
+
+pkg_postinst() {
+	udev_reload
+
+	# we always need userspace utils in sync with zfs-kmod
+	# so force initrd update for userspace as well, to avoid
+	# situation when zfs-kmod trigger initrd rebuild before
+	# userspace component is rebuilt
+	# KV_* variables are provided by linux-info.eclass
+	if [[ -z ${ROOT} ]] && use dist-kernel; then
+		dist-kernel_reinstall_initramfs "${KV_DIR}" "${KV_FULL}"
+	fi
+
+	if use rootfs; then
+		if ! has_version sys-kernel/genkernel && ! has_version sys-kernel/dracut; then
+			elog "Root on zfs requires an initramfs to boot"
+			elog "The following packages provide one and are tested on a regular basis:"
+			elog "  sys-kernel/dracut ( preferred, module maintained by zfs developers )"
+			elog "  sys-kernel/genkernel"
+		fi
+	fi
+
+	if systemd_is_booted || has_version sys-apps/systemd; then
+		einfo "Please refer to $(systemd_get_systempresetdir)/50-zfs.preset"
+		einfo "for default zfs systemd service configuration"
+	else
+		[[ -e "${EROOT}/etc/runlevels/boot/zfs-import" ]] || \
+			einfo "You should add zfs-import to the boot runlevel."
+		[[ -e "${EROOT}/etc/runlevels/boot/zfs-load-key" ]] || \
+			einfo "You should add zfs-load-key to the boot runlevel."
+		[[ -e "${EROOT}/etc/runlevels/boot/zfs-mount" ]]|| \
+			einfo "You should add zfs-mount to the boot runlevel."
+		[[ -e "${EROOT}/etc/runlevels/default/zfs-share" ]] || \
+			einfo "You should add zfs-share to the default runlevel."
+		[[ -e "${EROOT}/etc/runlevels/default/zfs-zed" ]] || \
+			einfo "You should add zfs-zed to the default runlevel."
+	fi
+}
+
+pkg_postrm() {
+	udev_reload
+}
diff --git a/sys-fs/zfs/zfs-2.3.7.ebuild b/sys-fs/zfs/zfs-2.3.7.ebuild
new file mode 100644
index 000000000000..2bf15147bee5
--- /dev/null
+++ b/sys-fs/zfs/zfs-2.3.7.ebuild
@@ -0,0 +1,313 @@
+# Copyright 1999-2026 Gentoo Authors
+# Distributed under the terms of the GNU General Public License v2
+
+EAPI=8
+
+# Maintainers should consider lurking in the ZFS IRC channels (there's several)
+# and regularly checking ZFS GitHub issues and PRs. Look out for the 'zfs-*'
+# stable backport PRs when they're opened and subscribe to them for any important
+# cherry-picks that may be needed in advance.
+
+DISTUTILS_OPTIONAL=1
+DISTUTILS_USE_PEP517=setuptools
+PYTHON_COMPAT=( python3_{13..14} )
+
+inherit autotools bash-completion-r1 dist-kernel-utils distutils-r1 flag-o-matic linux-info pam systemd udev usr-ldscript
+
+DESCRIPTION="Userland utilities for ZFS Linux kernel module"
+HOMEPAGE="https://github.com/openzfs/zfs"
+
+if [[ ${PV} == "9999" ]]; then
+	inherit git-r3
+	EGIT_REPO_URI="https://github.com/openzfs/zfs.git"
+else
+	VERIFY_SIG_OPENPGP_KEY_PATH=/usr/share/openpgp-keys/openzfs.asc
+	inherit verify-sig
+
+	MY_P="${P/_rc/-rc}"
+	SRC_URI="https://github.com/openzfs/${PN}/releases/download/${MY_P}/${MY_P}.tar.gz"
+	SRC_URI+=" verify-sig? ( https://github.com/openzfs/${PN}/releases/download/${MY_P}/${MY_P}.tar.gz.asc )"
+	S="${WORKDIR}/${MY_P}"
+
+	if [[ ${PV} != *_rc* ]]; then
+		KEYWORDS="~amd64 ~arm64 ~loong ~ppc64 ~riscv ~sparc"
+	fi
+fi
+
+LICENSE="BSD-2 CDDL MIT"
+# just libzfs soname major for now.
+# possible candidates: libuutil, libzpool, libnvpair. Those do not provide stable abi, but are considered.
+# see libsoversion_check() below as well
+SLOT="0/6"
+IUSE="custom-cflags debug dist-kernel kernel-builtin minimal nls pam python +rootfs selinux test-suite unwind"
+
+DEPEND="
+	dev-libs/openssl:=
+	net-libs/libtirpc:=
+	sys-apps/util-linux
+	virtual/zlib:=
+	virtual/libudev:=
+	!minimal? ( ${PYTHON_DEPS} )
+	pam? ( sys-libs/pam )
+	python? (
+		$(python_gen_cond_dep 'dev-python/cffi[${PYTHON_USEDEP}]' 'python*')
+	)
+	unwind? ( sys-libs/libunwind:= )
+"
+
+BDEPEND="
+	app-alternatives/awk
+	virtual/pkgconfig
+	nls? ( sys-devel/gettext )
+	python? (
+		${DISTUTILS_DEPS}
+		|| (
+			dev-python/packaging[${PYTHON_USEDEP}]
+			dev-python/distlib[${PYTHON_USEDEP}]
+		)
+	)
+"
+
+if [[ ${PV} != "9999" ]] ; then
+	BDEPEND+=" verify-sig? ( sec-keys/openpgp-keys-openzfs )"
+fi
+
+# awk is used for some scripts, completions, and the Dracut module
+RDEPEND="
+	${DEPEND}
+	!kernel-builtin? ( ~sys-fs/zfs-kmod-${PV}:= )
+	!prefix? ( virtual/udev )
+	app-alternatives/awk
+	sys-fs/udev-init-scripts
+	dist-kernel? ( virtual/dist-kernel:= )
+	rootfs? (
+		app-alternatives/cpio
+		app-misc/pax-utils
+	)
+	selinux? ( sec-policy/selinux-zfs )
+	test-suite? (
+		app-shells/ksh
+		sys-apps/kmod[tools]
+		sys-apps/util-linux
+		app-alternatives/bc
+		sys-block/parted
+		sys-fs/lsscsi
+		sys-fs/mdadm
+		sys-process/procps
+	)
+"
+
+# PDEPEND in this form is needed to trick portage suggest
+# enabling dist-kernel if only 1 package have it set, without suggesting to disable
+PDEPEND="dist-kernel? ( ~sys-fs/zfs-kmod-${PV}[dist-kernel] )"
+
+REQUIRED_USE="
+	!minimal? ( ${PYTHON_REQUIRED_USE} )
+	python? ( !minimal )
+	test-suite? ( !minimal )
+"
+
+RESTRICT="test"
+
+PATCHES=(
+	"${FILESDIR}"/2.1.5-dracut-zfs-missing.patch
+)
+
+pkg_pretend() {
+	use rootfs || return 0
+
+	if has_version virtual/dist-kernel && ! use dist-kernel; then
+		ewarn "You have virtual/dist-kernel installed, but"
+		ewarn "USE=\"dist-kernel\" is not enabled for ${CATEGORY}/${PN}"
+		ewarn "It's recommended to globally enable dist-kernel USE flag"
+		ewarn "to auto-trigger initrd rebuilds with kernel updates"
+	fi
+}
+
+pkg_setup() {
+	if use kernel_linux; then
+		linux-info_pkg_setup
+
+		if ! linux_config_exists; then
+			ewarn "Cannot check the linux kernel configuration."
+		else
+			if use test-suite; then
+				if linux_chkconfig_present BLK_DEV_LOOP; then
+					eerror "The ZFS test suite requires loop device support enabled."
+					eerror "Please enable it:"
+					eerror "    CONFIG_BLK_DEV_LOOP=y"
+					eerror "in /usr/src/linux/.config or"
+					eerror "    Device Drivers --->"
+					eerror "        Block devices --->"
+					eerror "            [X] Loopback device support"
+				fi
+			fi
+		fi
+	fi
+}
+
+libsoversion_check() {
+	local bugurl libzfs_sover
+	bugurl="https://bugs.gentoo.org/enter_bug.cgi?form_name=enter_bug&product=Gentoo+Linux&component=Current+packages"
+
+	libzfs_sover="$(grep 'libzfs_la_LDFLAGS += -version-info' lib/libzfs/Makefile.am \
+		| grep -Eo '[0-9]+:[0-9]+:[0-9]+')"
+	libzfs_sover="${libzfs_sover%%:*}"
+
+	if [[ ${libzfs_sover} -ne $(ver_cut 2 ${SLOT}) ]]; then
+		echo
+		eerror "BUG BUG BUG BUG BUG BUG BUG BUG"
+		eerror "ebuild subslot does not match libzfs soversion!"
+		eerror "libzfs soversion: ${libzfs_sover}"
+		eerror "ebuild value: $(ver_cut 2 ${SLOT})"
+		eerror "This is a bug in the ebuild, please use the following URL to report it"
+		eerror "${bugurl}&short_desc=${CATEGORY}%2F${P}+update+subslot"
+		echo
+		# we want to abort for releases, but just print a warning for live ebuild
+		# to keep package installable
+		[[  ${PV} == "9999" ]] || die
+	fi
+}
+
+src_prepare() {
+	default
+	libsoversion_check
+
+	# Run unconditionally (bug #792627)
+	eautoreconf
+
+	if [[ ${PV} != "9999" ]]; then
+		# Set revision number
+		sed -i "s/\(Release:\)\(.*\)1/\1\2${PR}-gentoo/" META || die "Could not set Gentoo release"
+	fi
+
+	if use python; then
+		pushd contrib/pyzfs >/dev/null || die
+		distutils-r1_src_prepare
+		popd >/dev/null || die
+	fi
+
+	# Tries to use /etc/conf.d which we reserve for OpenRC
+	sed -i -e '/EnvironmentFile/d' etc/systemd/system/zfs*.in || die
+
+	# prevent errors showing up on zfs-mount stop, #647688
+	# openrc will unmount all filesystems anyway.
+	sed -i "/^ZFS_UNMOUNT=/ s/yes/no/" "etc/default/zfs.in" || die
+}
+
+src_configure() {
+	use custom-cflags || strip-flags
+	use minimal || python_setup
+
+	local myconf=(
+		--bindir="${EPREFIX}/bin"
+		--enable-shared
+		--enable-sysvinit
+		--localstatedir="${EPREFIX}/var"
+		--sbindir="${EPREFIX}/sbin"
+		--with-config=user
+		--with-dracutdir="${EPREFIX}/usr/lib/dracut"
+		--with-linux="${KV_DIR}"
+		--with-linux-obj="${KV_OUT_DIR}"
+		--with-udevdir="$(get_udevdir)"
+		--with-pamconfigsdir="${EPREFIX}/unwanted_files"
+		--with-pammoduledir="$(getpam_mod_dir)"
+		--with-systemdunitdir="$(systemd_get_systemunitdir)"
+		--with-systemdpresetdir="$(systemd_get_systempresetdir)"
+		--with-vendor=gentoo
+		# Building zfs-mount-generator.c on musl breaks as strndupa
+		# isn't available. But systemd doesn't support musl anyway, so
+		# just disable building it.
+		# UPDATE: it has been fixed since,
+		# https://github.com/openzfs/zfs/commit/1f19826c9ac85835cbde61a7439d9d1fefe43a4a
+		# but we still leave it as this for now.
+		$(use_enable !elibc_musl systemd)
+		$(use_enable debug)
+		$(use_enable nls)
+		$(use_enable pam)
+		$(use_enable python pyzfs)
+		$(use_with unwind libunwind)
+		--disable-static
+		$(usex minimal --without-python --with-python="${EPYTHON}")
+	)
+
+	econf "${myconf[@]}"
+}
+
+src_compile() {
+	default
+	if use python; then
+		pushd contrib/pyzfs >/dev/null || die
+		distutils-r1_src_compile
+		popd >/dev/null || die
+	fi
+}
+
+src_install() {
+	default
+
+	gen_usr_ldscript -a nvpair uutil zfsbootenv zfs zfs_core zpool
+
+	use pam && { rm -rv "${ED}/unwanted_files" || die ; }
+
+	use test-suite || { rm -r "${ED}"/usr/share/zfs/{test-runner,zfs-tests,runfiles,*sh} || die ; }
+
+	find "${ED}" -name '*.la' -delete || die
+
+	dobashcomp contrib/bash_completion.d/zfs
+	bashcomp_alias zfs zpool
+
+	# strip executable bit from conf.d file
+	fperms 0644 /etc/conf.d/zfs
+
+	if use python; then
+		pushd contrib/pyzfs >/dev/null || die
+		distutils-r1_src_install
+		popd >/dev/null || die
+	fi
+
+	# enforce best available python implementation
+	use minimal || python_fix_shebang "${ED}/bin"
+}
+
+pkg_postinst() {
+	udev_reload
+
+	# we always need userspace utils in sync with zfs-kmod
+	# so force initrd update for userspace as well, to avoid
+	# situation when zfs-kmod trigger initrd rebuild before
+	# userspace component is rebuilt
+	# KV_* variables are provided by linux-info.eclass
+	if [[ -z ${ROOT} ]] && use dist-kernel; then
+		dist-kernel_reinstall_initramfs "${KV_DIR}" "${KV_FULL}"
+	fi
+
+	if use rootfs; then
+		if ! has_version sys-kernel/genkernel && ! has_version sys-kernel/dracut; then
+			elog "Root on zfs requires an initramfs to boot"
+			elog "The following packages provide one and are tested on a regular basis:"
+			elog "  sys-kernel/dracut ( preferred, module maintained by zfs developers )"
+			elog "  sys-kernel/genkernel"
+		fi
+	fi
+
+	if systemd_is_booted || has_version sys-apps/systemd; then
+		einfo "Please refer to $(systemd_get_systempresetdir)/50-zfs.preset"
+		einfo "for default zfs systemd service configuration"
+	else
+		[[ -e "${EROOT}/etc/runlevels/boot/zfs-import" ]] || \
+			einfo "You should add zfs-import to the boot runlevel."
+		[[ -e "${EROOT}/etc/runlevels/boot/zfs-load-key" ]] || \
+			einfo "You should add zfs-load-key to the boot runlevel."
+		[[ -e "${EROOT}/etc/runlevels/boot/zfs-mount" ]]|| \
+			einfo "You should add zfs-mount to the boot runlevel."
+		[[ -e "${EROOT}/etc/runlevels/default/zfs-share" ]] || \
+			einfo "You should add zfs-share to the default runlevel."
+		[[ -e "${EROOT}/etc/runlevels/default/zfs-zed" ]] || \
+			einfo "You should add zfs-zed to the default runlevel."
+	fi
+}
+
+pkg_postrm() {
+	udev_reload
+}
diff --git a/sys-fs/zfs/zfs-2.3.8.ebuild b/sys-fs/zfs/zfs-2.3.8.ebuild
new file mode 100644
index 000000000000..1c3df899c22c
--- /dev/null
+++ b/sys-fs/zfs/zfs-2.3.8.ebuild
@@ -0,0 +1,313 @@
+# Copyright 1999-2026 Gentoo Authors
+# Distributed under the terms of the GNU General Public License v2
+
+EAPI=8
+
+# Maintainers should consider lurking in the ZFS IRC channels (there's several)
+# and regularly checking ZFS GitHub issues and PRs. Look out for the 'zfs-*'
+# stable backport PRs when they're opened and subscribe to them for any important
+# cherry-picks that may be needed in advance.
+
+DISTUTILS_OPTIONAL=1
+DISTUTILS_USE_PEP517=setuptools
+PYTHON_COMPAT=( python3_{13..14} )
+
+inherit autotools bash-completion-r1 dist-kernel-utils distutils-r1 flag-o-matic linux-info pam systemd udev usr-ldscript
+
+DESCRIPTION="Userland utilities for ZFS Linux kernel module"
+HOMEPAGE="https://github.com/openzfs/zfs"
+
+if [[ ${PV} == "9999" ]]; then
+	inherit git-r3
+	EGIT_REPO_URI="https://github.com/openzfs/zfs.git"
+else
+	VERIFY_SIG_OPENPGP_KEY_PATH=/usr/share/openpgp-keys/openzfs.asc
+	inherit verify-sig
+
+	MY_P="${P/_rc/-rc}"
+	SRC_URI="https://github.com/openzfs/${PN}/releases/download/${MY_P}/${MY_P}.tar.gz"
+	SRC_URI+=" verify-sig? ( https://github.com/openzfs/${PN}/releases/download/${MY_P}/${MY_P}.tar.gz.asc )"
+	S="${WORKDIR}/${MY_P}"
+
+	if [[ ${PV} != *_rc* ]]; then
+		KEYWORDS="~amd64 ~arm64 ~loong ~ppc64 ~riscv ~sparc"
+	fi
+fi
+
+LICENSE="BSD-2 CDDL MIT"
+# just libzfs soname major for now.
+# possible candidates: libuutil, libzpool, libnvpair. Those do not provide stable abi, but are considered.
+# see libsoversion_check() below as well
+SLOT="0/6"
+IUSE="custom-cflags debug dist-kernel kernel-builtin minimal nls pam python +rootfs selinux test-suite unwind"
+
+DEPEND="
+	dev-libs/openssl:=
+	net-libs/libtirpc:=
+	sys-apps/util-linux
+	virtual/zlib:=
+	virtual/libudev:=
+	!minimal? ( ${PYTHON_DEPS} )
+	pam? ( sys-libs/pam )
+	python? (
+		$(python_gen_cond_dep 'dev-python/cffi[${PYTHON_USEDEP}]' 'python*')
+	)
+	unwind? ( sys-libs/libunwind:= )
+"
+
+BDEPEND="
+	app-alternatives/awk
+	virtual/pkgconfig
+	nls? ( sys-devel/gettext )
+	python? (
+		${DISTUTILS_DEPS}
+		|| (
+			dev-python/packaging[${PYTHON_USEDEP}]
+			dev-python/distlib[${PYTHON_USEDEP}]
+		)
+	)
+"
+
+if [[ ${PV} != "9999" ]] ; then
+	BDEPEND+=" verify-sig? ( sec-keys/openpgp-keys-openzfs )"
+fi
+
+# awk is used for some scripts, completions, and the Dracut module
+RDEPEND="
+	${DEPEND}
+	!kernel-builtin? ( ~sys-fs/zfs-kmod-${PV}:= )
+	!prefix? ( virtual/udev )
+	app-alternatives/awk
+	sys-fs/udev-init-scripts
+	dist-kernel? ( virtual/dist-kernel:= )
+	rootfs? (
+		app-alternatives/cpio
+		app-misc/pax-utils
+	)
+	selinux? ( sec-policy/selinux-zfs )
+	test-suite? (
+		app-shells/ksh
+		sys-apps/kmod[tools]
+		sys-apps/util-linux
+		app-alternatives/bc
+		sys-block/parted
+		sys-fs/lsscsi
+		sys-fs/mdadm
+		sys-process/procps
+	)
+"
+
+# PDEPEND in this form is needed to trick portage suggest
+# enabling dist-kernel if only 1 package have it set, without suggesting to disable
+PDEPEND="dist-kernel? ( ~sys-fs/zfs-kmod-${PV}[dist-kernel] )"
+
+REQUIRED_USE="
+	!minimal? ( ${PYTHON_REQUIRED_USE} )
+	python? ( !minimal )
+	test-suite? ( !minimal )
+"
+
+RESTRICT="test"
+
+PATCHES=(
+	"${FILESDIR}"/${PN}-2.1.11-gentoo.patch
+)
+
+pkg_pretend() {
+	use rootfs || return 0
+
+	if has_version virtual/dist-kernel && ! use dist-kernel; then
+		ewarn "You have virtual/dist-kernel installed, but"
+		ewarn "USE=\"dist-kernel\" is not enabled for ${CATEGORY}/${PN}"
+		ewarn "It's recommended to globally enable dist-kernel USE flag"
+		ewarn "to auto-trigger initrd rebuilds with kernel updates"
+	fi
+}
+
+pkg_setup() {
+	if use kernel_linux; then
+		linux-info_pkg_setup
+
+		if ! linux_config_exists; then
+			ewarn "Cannot check the linux kernel configuration."
+		else
+			if use test-suite; then
+				if linux_chkconfig_present BLK_DEV_LOOP; then
+					eerror "The ZFS test suite requires loop device support enabled."
+					eerror "Please enable it:"
+					eerror "    CONFIG_BLK_DEV_LOOP=y"
+					eerror "in /usr/src/linux/.config or"
+					eerror "    Device Drivers --->"
+					eerror "        Block devices --->"
+					eerror "            [X] Loopback device support"
+				fi
+			fi
+		fi
+	fi
+}
+
+libsoversion_check() {
+	local bugurl libzfs_sover
+	bugurl="https://bugs.gentoo.org/enter_bug.cgi?form_name=enter_bug&product=Gentoo+Linux&component=Current+packages"
+
+	libzfs_sover="$(grep 'libzfs_la_LDFLAGS += -version-info' lib/libzfs/Makefile.am \
+		| grep -Eo '[0-9]+:[0-9]+:[0-9]+')"
+	libzfs_sover="${libzfs_sover%%:*}"
+
+	if [[ ${libzfs_sover} -ne $(ver_cut 2 ${SLOT}) ]]; then
+		echo
+		eerror "BUG BUG BUG BUG BUG BUG BUG BUG"
+		eerror "ebuild subslot does not match libzfs soversion!"
+		eerror "libzfs soversion: ${libzfs_sover}"
+		eerror "ebuild value: $(ver_cut 2 ${SLOT})"
+		eerror "This is a bug in the ebuild, please use the following URL to report it"
+		eerror "${bugurl}&short_desc=${CATEGORY}%2F${P}+update+subslot"
+		echo
+		# we want to abort for releases, but just print a warning for live ebuild
+		# to keep package installable
+		[[  ${PV} == "9999" ]] || die
+	fi
+}
+
+src_prepare() {
+	default
+	libsoversion_check
+
+	# Run unconditionally (bug #792627)
+	eautoreconf
+
+	if [[ ${PV} != "9999" ]]; then
+		# Set revision number
+		sed -i "s/\(Release:\)\(.*\)1/\1\2${PR}-gentoo/" META || die "Could not set Gentoo release"
+	fi
+
+	if use python; then
+		pushd contrib/pyzfs >/dev/null || die
+		distutils-r1_src_prepare
+		popd >/dev/null || die
+	fi
+
+	# Tries to use /etc/conf.d which we reserve for OpenRC
+	sed -i -e '/EnvironmentFile/d' etc/systemd/system/zfs*.in || die
+
+	# prevent errors showing up on zfs-mount stop, #647688
+	# openrc will unmount all filesystems anyway.
+	sed -i "/^ZFS_UNMOUNT=/ s/yes/no/" "etc/default/zfs.in" || die
+}
+
+src_configure() {
+	use custom-cflags || strip-flags
+	use minimal || python_setup
+
+	local myconf=(
+		--bindir="${EPREFIX}/bin"
+		--enable-shared
+		--enable-sysvinit
+		--localstatedir="${EPREFIX}/var"
+		--sbindir="${EPREFIX}/sbin"
+		--with-config=user
+		--with-dracutdir="${EPREFIX}/usr/lib/dracut"
+		--with-linux="${KV_DIR}"
+		--with-linux-obj="${KV_OUT_DIR}"
+		--with-udevdir="$(get_udevdir)"
+		--with-pamconfigsdir="${EPREFIX}/unwanted_files"
+		--with-pammoduledir="$(getpam_mod_dir)"
+		--with-systemdunitdir="$(systemd_get_systemunitdir)"
+		--with-systemdpresetdir="$(systemd_get_systempresetdir)"
+		--with-vendor=gentoo
+		# Building zfs-mount-generator.c on musl breaks as strndupa
+		# isn't available. But systemd doesn't support musl anyway, so
+		# just disable building it.
+		# UPDATE: it has been fixed since,
+		# https://github.com/openzfs/zfs/commit/1f19826c9ac85835cbde61a7439d9d1fefe43a4a
+		# but we still leave it as this for now.
+		$(use_enable !elibc_musl systemd)
+		$(use_enable debug)
+		$(use_enable nls)
+		$(use_enable pam)
+		$(use_enable python pyzfs)
+		$(use_with unwind libunwind)
+		--disable-static
+		$(usex minimal --without-python --with-python="${EPYTHON}")
+	)
+
+	econf "${myconf[@]}"
+}
+
+src_compile() {
+	default
+	if use python; then
+		pushd contrib/pyzfs >/dev/null || die
+		distutils-r1_src_compile
+		popd >/dev/null || die
+	fi
+}
+
+src_install() {
+	default
+
+	gen_usr_ldscript -a nvpair uutil zfsbootenv zfs zfs_core zpool
+
+	use pam && { rm -rv "${ED}/unwanted_files" || die ; }
+
+	use test-suite || { rm -r "${ED}"/usr/share/zfs/{test-runner,zfs-tests,runfiles,*sh} || die ; }
+
+	find "${ED}" -name '*.la' -delete || die
+
+	dobashcomp contrib/bash_completion.d/zfs
+	bashcomp_alias zfs zpool
+
+	# strip executable bit from conf.d file
+	fperms 0644 /etc/conf.d/zfs
+
+	if use python; then
+		pushd contrib/pyzfs >/dev/null || die
+		distutils-r1_src_install
+		popd >/dev/null || die
+	fi
+
+	# enforce best available python implementation
+	use minimal || python_fix_shebang "${ED}/bin"
+}
+
+pkg_postinst() {
+	udev_reload
+
+	# we always need userspace utils in sync with zfs-kmod
+	# so force initrd update for userspace as well, to avoid
+	# situation when zfs-kmod trigger initrd rebuild before
+	# userspace component is rebuilt
+	# KV_* variables are provided by linux-info.eclass
+	if [[ -z ${ROOT} ]] && use dist-kernel; then
+		dist-kernel_reinstall_initramfs "${KV_DIR}" "${KV_FULL}"
+	fi
+
+	if use rootfs; then
+		if ! has_version sys-kernel/genkernel && ! has_version sys-kernel/dracut; then
+			elog "Root on zfs requires an initramfs to boot"
+			elog "The following packages provide one and are tested on a regular basis:"
+			elog "  sys-kernel/dracut ( preferred, module maintained by zfs developers )"
+			elog "  sys-kernel/genkernel"
+		fi
+	fi
+
+	if systemd_is_booted || has_version sys-apps/systemd; then
+		einfo "Please refer to $(systemd_get_systempresetdir)/50-zfs.preset"
+		einfo "for default zfs systemd service configuration"
+	else
+		[[ -e "${EROOT}/etc/runlevels/boot/zfs-import" ]] || \
+			einfo "You should add zfs-import to the boot runlevel."
+		[[ -e "${EROOT}/etc/runlevels/boot/zfs-load-key" ]] || \
+			einfo "You should add zfs-load-key to the boot runlevel."
+		[[ -e "${EROOT}/etc/runlevels/boot/zfs-mount" ]]|| \
+			einfo "You should add zfs-mount to the boot runlevel."
+		[[ -e "${EROOT}/etc/runlevels/default/zfs-share" ]] || \
+			einfo "You should add zfs-share to the default runlevel."
+		[[ -e "${EROOT}/etc/runlevels/default/zfs-zed" ]] || \
+			einfo "You should add zfs-zed to the default runlevel."
+	fi
+}
+
+pkg_postrm() {
+	udev_reload
+}
diff --git a/sys-fs/zfs/zfs-2.4.2.ebuild b/sys-fs/zfs/zfs-2.4.1.ebuild
index 899a28a0cd9e..430db1ed9f59 100644
--- a/sys-fs/zfs/zfs-2.4.2.ebuild
+++ b/sys-fs/zfs/zfs-2.4.1.ebuild
@@ -21,7 +21,7 @@ inherit linux-mod-r1 multiprocessing pam systemd udev usr-ldscript
 DESCRIPTION="Linux kernel module and userland utilities for ZFS"
 HOMEPAGE="https://github.com/openzfs/zfs"
 
-MODULES_KERNEL_MAX=7.0
+MODULES_KERNEL_MAX=6.19
 MODULES_KERNEL_MIN=4.18
 
 if [[ ${PV} == "9999" ]]; then
@@ -81,17 +81,6 @@ BDEPEND="
 	)
 "
 
-if [[ ${PV} != "9999" ]] ; then
-	BDEPEND+=" verify-sig? ( sec-keys/openpgp-keys-openzfs )"
-
-	IUSE+=" +dist-kernel-cap"
-	RDEPEND="
-		dist-kernel-cap? ( dist-kernel? (
-			<virtual/dist-kernel-${ZFS_KERNEL_DEP}
-		) )
-	"
-fi
-
 # awk is used for some scripts, completions, and the Dracut module
 RDEPEND="
 	${DEPEND}
@@ -117,6 +106,17 @@ RDEPEND="
 	!<sys-fs/zfs-kmod-2.4.0_rc2-r1
 "
 
+if [[ ${PV} != "9999" ]] ; then
+	BDEPEND+=" verify-sig? ( sec-keys/openpgp-keys-openzfs )"
+
+	IUSE+=" +dist-kernel-cap"
+	RDEPEND+="
+		dist-kernel-cap? ( dist-kernel? (
+			<virtual/dist-kernel-${ZFS_KERNEL_DEP}
+		) )
+	"
+fi
+
 REQUIRED_USE="
 	!minimal? ( ${PYTHON_REQUIRED_USE} )
 	python? ( !minimal )
diff --git a/sys-fs/zfs/zfs-2.4.2-r1.ebuild b/sys-fs/zfs/zfs-2.4.2-r1.ebuild
new file mode 100644
index 000000000000..4870f475a662
--- /dev/null
+++ b/sys-fs/zfs/zfs-2.4.2-r1.ebuild
@@ -0,0 +1,439 @@
+# Copyright 1999-2026 Gentoo Authors
+# Distributed under the terms of the GNU General Public License v2
+
+EAPI=8
+
+# Maintainers should consider lurking in the ZFS IRC channels (there's several)
+# and regularly checking ZFS GitHub issues and PRs. Look out for the 'zfs-*'
+# stable backport PRs when they're opened and subscribe to them for any important
+# cherry-picks that may be needed in advance.
+
+DISTUTILS_OPTIONAL=1
+DISTUTILS_USE_PEP517=setuptools
+PYTHON_COMPAT=( python3_{13..14} )
+
+MODULES_INITRAMFS_IUSE=+initramfs
+MODULES_OPTIONAL_IUSE=+modules
+
+inherit autotools bash-completion-r1 distutils-r1 flag-o-matic linux-info
+inherit linux-mod-r1 multiprocessing pam systemd udev usr-ldscript
+
+DESCRIPTION="Linux kernel module and userland utilities for ZFS"
+HOMEPAGE="https://github.com/openzfs/zfs"
+
+MODULES_KERNEL_MAX=7.0
+MODULES_KERNEL_MIN=4.18
+
+if [[ ${PV} == "9999" ]]; then
+	inherit git-r3
+	EGIT_REPO_URI="https://github.com/openzfs/zfs.git"
+else
+	VERIFY_SIG_OPENPGP_KEY_PATH=/usr/share/openpgp-keys/openzfs.asc
+	inherit verify-sig
+
+	MY_P="${P/_rc/-rc}"
+	SRC_URI="https://github.com/openzfs/${PN}/releases/download/${MY_P}/${MY_P}.tar.gz"
+	SRC_URI+=" verify-sig? ( https://github.com/openzfs/${PN}/releases/download/${MY_P}/${MY_P}.tar.gz.asc )"
+	S="${WORKDIR}/${MY_P}"
+
+	ZFS_KERNEL_COMPAT="${MODULES_KERNEL_MAX}"
+	# Increments minor eg 5.14 -> 5.15, and still supports override.
+	ZFS_KERNEL_DEP="${ZFS_KERNEL_COMPAT_OVERRIDE:-${ZFS_KERNEL_COMPAT}}"
+	ZFS_KERNEL_DEP="${ZFS_KERNEL_DEP%%.*}.$(( ${ZFS_KERNEL_DEP##*.} + 1))"
+
+	if [[ ${PV} != *_rc* ]]; then
+		KEYWORDS="~amd64 ~arm64 ~loong ~ppc64 ~riscv ~sparc"
+	fi
+fi
+
+LICENSE="BSD-2 CDDL MIT modules? ( debug? ( GPL-2+ ) )"
+# just libzfs soname major for now.
+# possible candidates: libuutil, libzpool, libnvpair. Those do not provide stable abi, but are considered.
+# see libsoversion_check() below as well
+SLOT="0/7"
+IUSE="custom-cflags debug dist-kernel minimal nls pam python +rootfs selinux test-suite unwind"
+
+DEPEND="
+	dev-libs/openssl:=
+	net-libs/libtirpc:=
+	sys-apps/util-linux
+	virtual/zlib:=
+	virtual/libudev:=
+	!minimal? ( ${PYTHON_DEPS} )
+	pam? ( sys-libs/pam )
+	python? (
+		$(python_gen_cond_dep 'dev-python/cffi[${PYTHON_USEDEP}]' 'python*')
+	)
+	unwind? ( sys-libs/libunwind:= )
+"
+
+BDEPEND="
+	app-alternatives/awk
+	virtual/pkgconfig
+	modules? ( dev-lang/perl )
+	nls? ( sys-devel/gettext )
+	python? (
+		${DISTUTILS_DEPS}
+		|| (
+			dev-python/packaging[${PYTHON_USEDEP}]
+			dev-python/distlib[${PYTHON_USEDEP}]
+		)
+	)
+"
+
+# awk is used for some scripts, completions, and the Dracut module
+RDEPEND="
+	${DEPEND}
+	!prefix? ( virtual/udev )
+	app-alternatives/awk
+	sys-fs/udev-init-scripts
+	dist-kernel? ( virtual/dist-kernel:= )
+	rootfs? (
+		app-alternatives/cpio
+		app-misc/pax-utils
+	)
+	selinux? ( sec-policy/selinux-zfs )
+	test-suite? (
+		app-shells/ksh
+		sys-apps/kmod[tools]
+		sys-apps/util-linux
+		app-alternatives/bc
+		sys-block/parted
+		sys-fs/lsscsi
+		sys-fs/mdadm
+		sys-process/procps
+	)
+	!<sys-fs/zfs-kmod-2.4.0_rc2-r1
+"
+
+if [[ ${PV} != "9999" ]] ; then
+	BDEPEND+=" verify-sig? ( sec-keys/openpgp-keys-openzfs )"
+
+	IUSE+=" +dist-kernel-cap"
+	RDEPEND+="
+		dist-kernel-cap? ( dist-kernel? (
+			<virtual/dist-kernel-${ZFS_KERNEL_DEP}
+		) )
+	"
+fi
+
+REQUIRED_USE="
+	!minimal? ( ${PYTHON_REQUIRED_USE} )
+	python? ( !minimal )
+	test-suite? ( !minimal )
+"
+
+RESTRICT="test"
+
+PATCHES=(
+	"${FILESDIR}"/${PN}-2.1.11-gentoo.patch
+	"${FILESDIR}"/2.4.2-properly_apply_ro_rw_mount_option_to_superblock.patch
+	"${FILESDIR}"/2.4.2-gcc16-earlyclobber-fix.patch
+)
+
+pkg_pretend() {
+	use rootfs || return 0
+
+	if has_version virtual/dist-kernel && ! use dist-kernel; then
+		ewarn "You have virtual/dist-kernel installed, but"
+		ewarn "USE=\"dist-kernel\" is not enabled for ${CATEGORY}/${PN}"
+		ewarn "It's recommended to globally enable dist-kernel USE flag"
+		ewarn "to auto-trigger initrd rebuilds with kernel updates"
+	fi
+}
+
+pkg_setup() {
+	if use kernel_linux; then
+		if use modules; then
+			local CONFIG_CHECK="
+				EFI_PARTITION
+				ZLIB_DEFLATE
+				ZLIB_INFLATE
+				!DEBUG_LOCK_ALLOC
+				!PAX_KERNEXEC_PLUGIN_METHOD_OR
+			"
+			use debug && CONFIG_CHECK+="
+				DEBUG_INFO
+				FRAME_POINTER
+				!DEBUG_INFO_REDUCED
+			"
+			use rootfs && CONFIG_CHECK+="
+				BLK_DEV_INITRD
+				DEVTMPFS
+			"
+
+			kernel_is -lt 5 && CONFIG_CHECK+=" IOSCHED_NOOP"
+
+			if [[ ${PV} != 9999 ]] ; then
+				local kv_major_max kv_minor_max zcompat
+				zcompat="${ZFS_KERNEL_COMPAT_OVERRIDE:-${ZFS_KERNEL_COMPAT}}"
+				kv_major_max="${zcompat%%.*}"
+				zcompat="${zcompat#*.}"
+				kv_minor_max="${zcompat%%.*}"
+				kernel_is -le "${kv_major_max}" "${kv_minor_max}" || die \
+					"Linux ${kv_major_max}.${kv_minor_max} is the latest supported version"
+			fi
+
+			linux-mod-r1_pkg_setup
+		else
+			linux-info_pkg_setup
+		fi
+
+		if ! linux_config_exists; then
+			ewarn "Cannot check the linux kernel configuration."
+		else
+			if use test-suite; then
+				if linux_chkconfig_present BLK_DEV_LOOP; then
+					eerror "The ZFS test suite requires loop device support enabled."
+					eerror "Please enable it:"
+					eerror "    CONFIG_BLK_DEV_LOOP=y"
+					eerror "in /usr/src/linux/.config or"
+					eerror "    Device Drivers --->"
+					eerror "        Block devices --->"
+					eerror "            [X] Loopback device support"
+				fi
+			fi
+		fi
+	fi
+}
+
+libsoversion_check() {
+	local bugurl libzfs_sover
+	bugurl="https://bugs.gentoo.org/enter_bug.cgi?form_name=enter_bug&product=Gentoo+Linux&component=Current+packages"
+
+	libzfs_sover="$(grep 'libzfs_la_LDFLAGS += -version-info' lib/libzfs/Makefile.am \
+		| grep -Eo '[0-9]+:[0-9]+:[0-9]+')"
+	libzfs_sover="${libzfs_sover%%:*}"
+
+	if [[ ${libzfs_sover} -ne $(ver_cut 2 ${SLOT}) ]]; then
+		echo
+		eerror "BUG BUG BUG BUG BUG BUG BUG BUG"
+		eerror "ebuild subslot does not match libzfs soversion!"
+		eerror "libzfs soversion: ${libzfs_sover}"
+		eerror "ebuild value: $(ver_cut 2 ${SLOT})"
+		eerror "This is a bug in the ebuild, please use the following URL to report it"
+		eerror "${bugurl}&short_desc=${CATEGORY}%2F${P}+update+subslot"
+		echo
+		# we want to abort for releases, but just print a warning for live ebuild
+		# to keep package installable
+		[[  ${PV} == "9999" ]] || die
+	fi
+}
+
+src_prepare() {
+	default
+	libsoversion_check
+
+	# Run unconditionally (bug #792627)
+	eautoreconf
+
+	if [[ ${PV} != "9999" ]]; then
+		# Set revision number
+		sed -i "s/\(Release:\)\(.*\)1/\1\2${PR}-gentoo/" META || die "Could not set Gentoo release"
+	fi
+
+	if use python; then
+		pushd contrib/pyzfs >/dev/null || die
+		distutils-r1_src_prepare
+		popd >/dev/null || die
+	fi
+
+	# Tries to use /etc/conf.d which we reserve for OpenRC
+	sed -i -e '/EnvironmentFile/d' etc/systemd/system/zfs*.in || die
+
+	# prevent errors showing up on zfs-mount stop, #647688
+	# openrc will unmount all filesystems anyway.
+	sed -i "/^ZFS_UNMOUNT=/ s/yes/no/" "etc/default/zfs.in" || die
+}
+
+src_configure() {
+	use custom-cflags || strip-flags
+	use minimal || python_setup
+
+	local myconf=(
+		--bindir="${EPREFIX}/bin"
+		--sbindir="${EPREFIX}/sbin"
+		--enable-shared
+		--enable-sysvinit
+		--localstatedir="${EPREFIX}/var"
+		--sbindir="${EPREFIX}/sbin"
+		--with-config="$(usex modules all user)"
+		--with-dracutdir="${EPREFIX}/usr/lib/dracut"
+		--with-linux="${KV_DIR}"
+		--with-linux-obj="${KV_OUT_DIR}"
+		--with-udevdir="$(get_udevdir)"
+		--with-pamconfigsdir="${EPREFIX}/unwanted_files"
+		--with-pammoduledir="$(getpam_mod_dir)"
+		--with-systemdunitdir="$(systemd_get_systemunitdir)"
+		--with-systemdpresetdir="$(systemd_get_systempresetdir)"
+		--with-vendor=gentoo
+		# Building zfs-mount-generator.c on musl breaks as strndupa
+		# isn't available. But systemd doesn't support musl anyway, so
+		# just disable building it.
+		# UPDATE: it has been fixed since,
+		# https://github.com/openzfs/zfs/commit/1f19826c9ac85835cbde61a7439d9d1fefe43a4a
+		# but we still leave it as this for now.
+		$(use_enable !elibc_musl systemd)
+		$(use_enable debug)
+		$(use_enable nls)
+		$(use_enable pam)
+		$(use_enable python pyzfs)
+		$(use_with unwind libunwind)
+		--disable-static
+		$(usex minimal --without-python --with-python="${EPYTHON}")
+
+		# See gentoo.patch
+		GENTOO_MAKEARGS_EVAL="${MODULES_MAKEARGS[*]@Q}"
+		TEST_JOBS="$(makeopts_jobs)"
+	)
+
+	econf "${myconf[@]}"
+}
+
+src_compile() {
+	if use modules; then
+		emake "${MODULES_MAKEARGS[@]}"
+	else
+		default
+	fi
+
+	if use python; then
+		pushd contrib/pyzfs >/dev/null || die
+		distutils-r1_src_compile
+		popd >/dev/null || die
+	fi
+}
+
+src_install() {
+	DOCS=( AUTHORS COPYRIGHT META README.md )
+
+	if use modules; then
+		emake "${MODULES_MAKEARGS[@]}" DESTDIR="${ED}" install
+		modules_post_process
+		einstalldocs
+	else
+		default
+	fi
+	# distutils-r1_src_install tries to run einstalldocs as well
+	# bug #965156
+	unset DOCS
+
+	gen_usr_ldscript -a nvpair uutil zfsbootenv zfs zfs_core zpool
+
+	use pam && { rm -rv "${ED}/unwanted_files" || die ; }
+
+	use test-suite || { rm -r "${ED}"/usr/share/zfs/{test-runner,zfs-tests,runfiles,*sh} || die ; }
+
+	find "${ED}" -name '*.la' -delete || die
+
+	dobashcomp contrib/bash_completion.d/zfs
+	bashcomp_alias zfs zpool
+
+	# strip executable bit from conf.d file
+	fperms 0644 /etc/conf.d/zfs
+
+	if use python; then
+		pushd contrib/pyzfs >/dev/null || die
+		distutils-r1_src_install
+		popd >/dev/null || die
+	fi
+
+	# enforce best available python implementation
+	use minimal || python_fix_shebang "${ED}/bin"
+}
+
+_old_layout_cleanup() {
+	# new files are just extra/{spl,zfs}.ko with no subdirs.
+	local olddir=(
+		avl/zavl
+		icp/icp
+		lua/zlua
+		nvpair/znvpair
+		spl/spl
+		unicode/zunicode
+		zcommon/zcommon
+		zfs/zfs
+		zstd/zzstd
+	)
+
+	# kernel/module/Kconfig contains possible compressed extentions.
+	local kext kextfiles
+		for kext in .ko{,.{gz,xz,zst}}; do
+		kextfiles+=( "${olddir[@]/%/${kext}}" )
+	done
+
+	local oldfile oldpath
+	for oldfile in "${kextfiles[@]}"; do
+		oldpath="${EROOT}/lib/modules/${KV_FULL}/extra/${oldfile}"
+		if [[ -f "${oldpath}" ]]; then
+			ewarn "Found obsolete zfs module ${oldfile} for current kernel ${KV_FULL}, removing."
+			rm -rv "${oldpath}" || die
+			# we do not remove non-empty directories just for safety in case there's something else.
+			# also it may fail if there are both compressed and uncompressed modules installed.
+			rmdir -v --ignore-fail-on-non-empty "${oldpath%/*.*}" || die
+		fi
+	done
+}
+
+pkg_postinst() {
+	udev_reload
+
+	if use modules; then
+		# Check for old module layout before doing anything else.
+		# only attempt layout cleanup if new .ko location is used.
+		local newko=( "${EROOT}/lib/modules/${KV_FULL}/extra"/{zfs,spl}.ko* )
+		# We check first array member, if glob above did not exand, it will be "zfs.ko*" and -f will return false.
+		# if glob expanded -f will do correct file precense check.
+		[[ -f ${newko[0]} ]] && _old_layout_cleanup
+
+		linux-mod-r1_pkg_postinst
+
+		if use x86 || use arm ; then
+			ewarn "32-bit kernels will likely require increasing vmalloc to"
+			ewarn "at least 256M and decreasing zfs_arc_max to some value less than that."
+		fi
+
+		if has_version sys-boot/grub ; then
+			ewarn "This version of OpenZFS includes support for new feature flags"
+			ewarn "that are incompatible with previous versions. GRUB2 support for"
+			ewarn "/boot with the new feature flags is not yet available."
+			ewarn "Do *NOT* upgrade root pools to use the new feature flags."
+			ewarn "Any new pools will be created with the new feature flags by default"
+			ewarn "and will not be compatible with older versions of OpenZFS. To"
+			ewarn "create a new pool that is backward compatible wih GRUB2, use "
+			ewarn
+			ewarn "zpool create -o compatibility=grub2 ..."
+			ewarn
+			ewarn "Refer to /usr/share/zfs/compatibility.d/grub2 for list of features."
+		fi
+	fi
+
+	if use rootfs; then
+		if ! has_version sys-kernel/genkernel && ! has_version sys-kernel/dracut; then
+			elog "Root on zfs requires an initramfs to boot"
+			elog "The following packages provide one and are tested on a regular basis:"
+			elog "  sys-kernel/dracut ( preferred, module maintained by zfs developers )"
+			elog "  sys-kernel/genkernel"
+		fi
+	fi
+
+	if systemd_is_booted || has_version sys-apps/systemd; then
+		einfo "Please refer to $(systemd_get_systempresetdir)/50-zfs.preset"
+		einfo "for default zfs systemd service configuration"
+	else
+		[[ -e "${EROOT}/etc/runlevels/boot/zfs-import" ]] || \
+			einfo "You should add zfs-import to the boot runlevel."
+		[[ -e "${EROOT}/etc/runlevels/boot/zfs-load-key" ]] || \
+			einfo "You should add zfs-load-key to the boot runlevel."
+		[[ -e "${EROOT}/etc/runlevels/boot/zfs-mount" ]]|| \
+			einfo "You should add zfs-mount to the boot runlevel."
+		[[ -e "${EROOT}/etc/runlevels/default/zfs-share" ]] || \
+			einfo "You should add zfs-share to the default runlevel."
+		[[ -e "${EROOT}/etc/runlevels/default/zfs-zed" ]] || \
+			einfo "You should add zfs-zed to the default runlevel."
+	fi
+}
+
+pkg_postrm() {
+	udev_reload
+}
diff --git a/sys-fs/zfs/zfs-2.4.3.ebuild b/sys-fs/zfs/zfs-2.4.3.ebuild
new file mode 100644
index 000000000000..91a5febee3ab
--- /dev/null
+++ b/sys-fs/zfs/zfs-2.4.3.ebuild
@@ -0,0 +1,440 @@
+# Copyright 1999-2026 Gentoo Authors
+# Distributed under the terms of the GNU General Public License v2
+
+EAPI=8
+
+# Maintainers should consider lurking in the ZFS IRC channels (there's several)
+# and regularly checking ZFS GitHub issues and PRs. Look out for the 'zfs-*'
+# stable backport PRs when they're opened and subscribe to them for any important
+# cherry-picks that may be needed in advance.
+
+DISTUTILS_OPTIONAL=1
+DISTUTILS_USE_PEP517=setuptools
+PYTHON_COMPAT=( python3_{13..14} )
+
+MODULES_INITRAMFS_IUSE=+initramfs
+MODULES_OPTIONAL_IUSE=+modules
+
+inherit autotools bash-completion-r1 distutils-r1 flag-o-matic linux-info
+inherit linux-mod-r1 multiprocessing pam systemd udev usr-ldscript
+
+DESCRIPTION="Linux kernel module and userland utilities for ZFS"
+HOMEPAGE="https://github.com/openzfs/zfs"
+
+MODULES_KERNEL_MAX=7.0
+MODULES_KERNEL_MIN=4.18
+
+if [[ ${PV} == "9999" ]]; then
+	inherit git-r3
+	EGIT_REPO_URI="https://github.com/openzfs/zfs.git"
+else
+	VERIFY_SIG_OPENPGP_KEY_PATH=/usr/share/openpgp-keys/openzfs.asc
+	inherit verify-sig
+
+	MY_P="${P/_rc/-rc}"
+	SRC_URI="https://github.com/openzfs/${PN}/releases/download/${MY_P}/${MY_P}.tar.gz"
+	SRC_URI+=" verify-sig? ( https://github.com/openzfs/${PN}/releases/download/${MY_P}/${MY_P}.tar.gz.asc )"
+	S="${WORKDIR}/${MY_P}"
+
+	ZFS_KERNEL_COMPAT="${MODULES_KERNEL_MAX}"
+	# Increments minor eg 5.14 -> 5.15, and still supports override.
+	ZFS_KERNEL_DEP="${ZFS_KERNEL_COMPAT_OVERRIDE:-${ZFS_KERNEL_COMPAT}}"
+	ZFS_KERNEL_DEP="${ZFS_KERNEL_DEP%%.*}.$(( ${ZFS_KERNEL_DEP##*.} + 1))"
+
+	if [[ ${PV} != *_rc* ]]; then
+		KEYWORDS="~amd64 ~arm64 ~loong ~ppc64 ~riscv ~sparc"
+	fi
+fi
+
+LICENSE="BSD-2 CDDL MIT modules? ( debug? ( GPL-2+ ) )"
+# just libzfs soname major for now.
+# possible candidates: libuutil, libzpool, libnvpair. Those do not provide stable abi, but are considered.
+# see libsoversion_check() below as well
+SLOT="0/7"
+IUSE="custom-cflags debug dist-kernel minimal nls pam python +rootfs selinux test-suite unwind"
+
+DEPEND="
+	dev-libs/openssl:=
+	net-libs/libtirpc:=
+	sys-apps/util-linux
+	virtual/zlib:=
+	virtual/libudev:=
+	!minimal? ( ${PYTHON_DEPS} )
+	pam? ( sys-libs/pam )
+	python? (
+		$(python_gen_cond_dep 'dev-python/cffi[${PYTHON_USEDEP}]' 'python*')
+	)
+	unwind? ( sys-libs/libunwind:= )
+"
+
+BDEPEND="
+	app-alternatives/awk
+	virtual/pkgconfig
+	modules? ( dev-lang/perl )
+	nls? ( sys-devel/gettext )
+	python? (
+		${DISTUTILS_DEPS}
+		|| (
+			dev-python/packaging[${PYTHON_USEDEP}]
+			dev-python/distlib[${PYTHON_USEDEP}]
+		)
+	)
+"
+
+# awk is used for some scripts, completions, and the Dracut module
+RDEPEND="
+	${DEPEND}
+	!prefix? ( virtual/udev )
+	app-alternatives/awk
+	sys-fs/udev-init-scripts
+	dist-kernel? ( virtual/dist-kernel:= )
+	rootfs? (
+		app-alternatives/cpio
+		app-misc/pax-utils
+	)
+	selinux? ( sec-policy/selinux-zfs )
+	test-suite? (
+		app-shells/ksh
+		sys-apps/kmod[tools]
+		sys-apps/util-linux
+		app-alternatives/bc
+		sys-block/parted
+		sys-fs/lsscsi
+		sys-fs/mdadm
+		sys-process/procps
+	)
+	!<sys-fs/zfs-kmod-2.4.0_rc2-r1
+"
+
+if [[ ${PV} != "9999" ]] ; then
+	BDEPEND+=" verify-sig? ( sec-keys/openpgp-keys-openzfs )"
+
+	IUSE+=" +dist-kernel-cap"
+	RDEPEND+="
+		dist-kernel-cap? ( dist-kernel? (
+			<virtual/dist-kernel-${ZFS_KERNEL_DEP}
+		) )
+	"
+fi
+
+REQUIRED_USE="
+	!minimal? ( ${PYTHON_REQUIRED_USE} )
+	python? ( !minimal )
+	test-suite? ( !minimal )
+"
+
+RESTRICT="test"
+
+PATCHES=(
+	"${FILESDIR}"/${PN}-2.1.11-gentoo.patch
+)
+
+pkg_pretend() {
+	use rootfs || return 0
+
+	if has_version virtual/dist-kernel && ! use dist-kernel; then
+		ewarn "You have virtual/dist-kernel installed, but"
+		ewarn "USE=\"dist-kernel\" is not enabled for ${CATEGORY}/${PN}"
+		ewarn "It's recommended to globally enable dist-kernel USE flag"
+		ewarn "to auto-trigger initrd rebuilds with kernel updates"
+	fi
+}
+
+pkg_setup() {
+	if use kernel_linux; then
+		if use modules; then
+			local CONFIG_CHECK="
+				EFI_PARTITION
+				ZLIB_DEFLATE
+				ZLIB_INFLATE
+				!DEBUG_LOCK_ALLOC
+				!PAX_KERNEXEC_PLUGIN_METHOD_OR
+			"
+			use debug && CONFIG_CHECK+="
+				DEBUG_INFO
+				FRAME_POINTER
+				!DEBUG_INFO_REDUCED
+			"
+			use rootfs && CONFIG_CHECK+="
+				BLK_DEV_INITRD
+				DEVTMPFS
+			"
+
+			kernel_is -lt 5 && CONFIG_CHECK+=" IOSCHED_NOOP"
+
+			if [[ ${PV} != 9999 ]] ; then
+				local kv_major_max kv_minor_max zcompat
+				zcompat="${ZFS_KERNEL_COMPAT_OVERRIDE:-${ZFS_KERNEL_COMPAT}}"
+				kv_major_max="${zcompat%%.*}"
+				zcompat="${zcompat#*.}"
+				kv_minor_max="${zcompat%%.*}"
+				kernel_is -le "${kv_major_max}" "${kv_minor_max}" || die \
+					"Linux ${kv_major_max}.${kv_minor_max} is the latest supported version"
+			fi
+
+			linux-mod-r1_pkg_setup
+		else
+			linux-info_pkg_setup
+		fi
+
+		if ! linux_config_exists; then
+			ewarn "Cannot check the linux kernel configuration."
+		else
+			if use test-suite; then
+				if linux_chkconfig_present BLK_DEV_LOOP; then
+					eerror "The ZFS test suite requires loop device support enabled."
+					eerror "Please enable it:"
+					eerror "    CONFIG_BLK_DEV_LOOP=y"
+					eerror "in /usr/src/linux/.config or"
+					eerror "    Device Drivers --->"
+					eerror "        Block devices --->"
+					eerror "            [X] Loopback device support"
+				fi
+			fi
+		fi
+	fi
+}
+
+libsoversion_check() {
+	local bugurl libzfs_sover
+	bugurl="https://bugs.gentoo.org/enter_bug.cgi?form_name=enter_bug&product=Gentoo+Linux&component=Current+packages"
+
+	libzfs_sover="$(grep 'libzfs_la_LDFLAGS += -version-info' lib/libzfs/Makefile.am \
+		| grep -Eo '[0-9]+:[0-9]+:[0-9]+')"
+	libzfs_sover="${libzfs_sover%%:*}"
+
+	if [[ ${libzfs_sover} -ne $(ver_cut 2 ${SLOT}) ]]; then
+		echo
+		eerror "BUG BUG BUG BUG BUG BUG BUG BUG"
+		eerror "ebuild subslot does not match libzfs soversion!"
+		eerror "libzfs soversion: ${libzfs_sover}"
+		eerror "ebuild value: $(ver_cut 2 ${SLOT})"
+		eerror "This is a bug in the ebuild, please use the following URL to report it"
+		eerror "${bugurl}&short_desc=${CATEGORY}%2F${P}+update+subslot"
+		echo
+		# we want to abort for releases, but just print a warning for live ebuild
+		# to keep package installable
+		[[  ${PV} == "9999" ]] || die
+	fi
+}
+
+src_prepare() {
+	default
+	libsoversion_check
+
+	# Run unconditionally (bug #792627)
+	eautoreconf
+
+	# strip forced -Werror, #904378
+	sed -i '/BUILD_FREEBSD_TRUE/s/-Werror //g' Makefile.in || die
+
+	if [[ ${PV} != "9999" ]]; then
+		# Set revision number
+		sed -i "s/\(Release:\)\(.*\)1/\1\2${PR}-gentoo/" META || die "Could not set Gentoo release"
+	fi
+
+	if use python; then
+		pushd contrib/pyzfs >/dev/null || die
+		distutils-r1_src_prepare
+		popd >/dev/null || die
+	fi
+
+	# Tries to use /etc/conf.d which we reserve for OpenRC
+	sed -i -e '/EnvironmentFile/d' etc/systemd/system/zfs*.in || die
+
+	# prevent errors showing up on zfs-mount stop, #647688
+	# openrc will unmount all filesystems anyway.
+	sed -i "/^ZFS_UNMOUNT=/ s/yes/no/" "etc/default/zfs.in" || die
+}
+
+src_configure() {
+	use custom-cflags || strip-flags
+	use minimal || python_setup
+
+	local myconf=(
+		--bindir="${EPREFIX}/bin"
+		--sbindir="${EPREFIX}/sbin"
+		--enable-shared
+		--enable-sysvinit
+		--localstatedir="${EPREFIX}/var"
+		--sbindir="${EPREFIX}/sbin"
+		--with-config="$(usex modules all user)"
+		--with-dracutdir="${EPREFIX}/usr/lib/dracut"
+		--with-linux="${KV_DIR}"
+		--with-linux-obj="${KV_OUT_DIR}"
+		--with-udevdir="$(get_udevdir)"
+		--with-pamconfigsdir="${EPREFIX}/unwanted_files"
+		--with-pammoduledir="$(getpam_mod_dir)"
+		--with-systemdunitdir="$(systemd_get_systemunitdir)"
+		--with-systemdpresetdir="$(systemd_get_systempresetdir)"
+		--with-vendor=gentoo
+		# Building zfs-mount-generator.c on musl breaks as strndupa
+		# isn't available. But systemd doesn't support musl anyway, so
+		# just disable building it.
+		# UPDATE: it has been fixed since,
+		# https://github.com/openzfs/zfs/commit/1f19826c9ac85835cbde61a7439d9d1fefe43a4a
+		# but we still leave it as this for now.
+		$(use_enable !elibc_musl systemd)
+		$(use_enable debug)
+		$(use_enable nls)
+		$(use_enable pam)
+		$(use_enable python pyzfs)
+		$(use_with unwind libunwind)
+		--disable-static
+		$(usex minimal --without-python --with-python="${EPYTHON}")
+
+		# See gentoo.patch
+		GENTOO_MAKEARGS_EVAL="${MODULES_MAKEARGS[*]@Q}"
+		TEST_JOBS="$(makeopts_jobs)"
+	)
+
+	econf "${myconf[@]}"
+}
+
+src_compile() {
+	if use modules; then
+		emake "${MODULES_MAKEARGS[@]}"
+	else
+		default
+	fi
+
+	if use python; then
+		pushd contrib/pyzfs >/dev/null || die
+		distutils-r1_src_compile
+		popd >/dev/null || die
+	fi
+}
+
+src_install() {
+	DOCS=( AUTHORS COPYRIGHT META README.md )
+
+	if use modules; then
+		emake "${MODULES_MAKEARGS[@]}" DESTDIR="${ED}" install
+		modules_post_process
+		einstalldocs
+	else
+		default
+	fi
+	# distutils-r1_src_install tries to run einstalldocs as well
+	# bug #965156
+	unset DOCS
+
+	gen_usr_ldscript -a nvpair uutil zfsbootenv zfs zfs_core zpool
+
+	use pam && { rm -rv "${ED}/unwanted_files" || die ; }
+
+	use test-suite || { rm -r "${ED}"/usr/share/zfs/{test-runner,zfs-tests,runfiles,*sh} || die ; }
+
+	find "${ED}" -name '*.la' -delete || die
+
+	dobashcomp contrib/bash_completion.d/zfs
+	bashcomp_alias zfs zpool
+
+	# strip executable bit from conf.d file
+	fperms 0644 /etc/conf.d/zfs
+
+	if use python; then
+		pushd contrib/pyzfs >/dev/null || die
+		distutils-r1_src_install
+		popd >/dev/null || die
+	fi
+
+	# enforce best available python implementation
+	use minimal || python_fix_shebang "${ED}/bin"
+}
+
+_old_layout_cleanup() {
+	# new files are just extra/{spl,zfs}.ko with no subdirs.
+	local olddir=(
+		avl/zavl
+		icp/icp
+		lua/zlua
+		nvpair/znvpair
+		spl/spl
+		unicode/zunicode
+		zcommon/zcommon
+		zfs/zfs
+		zstd/zzstd
+	)
+
+	# kernel/module/Kconfig contains possible compressed extentions.
+	local kext kextfiles
+		for kext in .ko{,.{gz,xz,zst}}; do
+		kextfiles+=( "${olddir[@]/%/${kext}}" )
+	done
+
+	local oldfile oldpath
+	for oldfile in "${kextfiles[@]}"; do
+		oldpath="${EROOT}/lib/modules/${KV_FULL}/extra/${oldfile}"
+		if [[ -f "${oldpath}" ]]; then
+			ewarn "Found obsolete zfs module ${oldfile} for current kernel ${KV_FULL}, removing."
+			rm -rv "${oldpath}" || die
+			# we do not remove non-empty directories just for safety in case there's something else.
+			# also it may fail if there are both compressed and uncompressed modules installed.
+			rmdir -v --ignore-fail-on-non-empty "${oldpath%/*.*}" || die
+		fi
+	done
+}
+
+pkg_postinst() {
+	udev_reload
+
+	if use modules; then
+		# Check for old module layout before doing anything else.
+		# only attempt layout cleanup if new .ko location is used.
+		local newko=( "${EROOT}/lib/modules/${KV_FULL}/extra"/{zfs,spl}.ko* )
+		# We check first array member, if glob above did not exand, it will be "zfs.ko*" and -f will return false.
+		# if glob expanded -f will do correct file precense check.
+		[[ -f ${newko[0]} ]] && _old_layout_cleanup
+
+		linux-mod-r1_pkg_postinst
+
+		if use x86 || use arm ; then
+			ewarn "32-bit kernels will likely require increasing vmalloc to"
+			ewarn "at least 256M and decreasing zfs_arc_max to some value less than that."
+		fi
+
+		if has_version sys-boot/grub ; then
+			ewarn "This version of OpenZFS includes support for new feature flags"
+			ewarn "that are incompatible with previous versions. GRUB2 support for"
+			ewarn "/boot with the new feature flags is not yet available."
+			ewarn "Do *NOT* upgrade root pools to use the new feature flags."
+			ewarn "Any new pools will be created with the new feature flags by default"
+			ewarn "and will not be compatible with older versions of OpenZFS. To"
+			ewarn "create a new pool that is backward compatible wih GRUB2, use "
+			ewarn
+			ewarn "zpool create -o compatibility=grub2 ..."
+			ewarn
+			ewarn "Refer to /usr/share/zfs/compatibility.d/grub2 for list of features."
+		fi
+	fi
+
+	if use rootfs; then
+		if ! has_version sys-kernel/genkernel && ! has_version sys-kernel/dracut; then
+			elog "Root on zfs requires an initramfs to boot"
+			elog "The following packages provide one and are tested on a regular basis:"
+			elog "  sys-kernel/dracut ( preferred, module maintained by zfs developers )"
+			elog "  sys-kernel/genkernel"
+		fi
+	fi
+
+	if systemd_is_booted || has_version sys-apps/systemd; then
+		einfo "Please refer to $(systemd_get_systempresetdir)/50-zfs.preset"
+		einfo "for default zfs systemd service configuration"
+	else
+		[[ -e "${EROOT}/etc/runlevels/boot/zfs-import" ]] || \
+			einfo "You should add zfs-import to the boot runlevel."
+		[[ -e "${EROOT}/etc/runlevels/boot/zfs-load-key" ]] || \
+			einfo "You should add zfs-load-key to the boot runlevel."
+		[[ -e "${EROOT}/etc/runlevels/boot/zfs-mount" ]]|| \
+			einfo "You should add zfs-mount to the boot runlevel."
+		[[ -e "${EROOT}/etc/runlevels/default/zfs-share" ]] || \
+			einfo "You should add zfs-share to the default runlevel."
+		[[ -e "${EROOT}/etc/runlevels/default/zfs-zed" ]] || \
+			einfo "You should add zfs-zed to the default runlevel."
+	fi
+}
+
+pkg_postrm() {
+	udev_reload
+}
diff --git a/sys-fs/zfs/zfs-9999.ebuild b/sys-fs/zfs/zfs-9999.ebuild
new file mode 100644
index 000000000000..2e976a38ee58
--- /dev/null
+++ b/sys-fs/zfs/zfs-9999.ebuild
@@ -0,0 +1,441 @@
+# Copyright 1999-2026 Gentoo Authors
+# Distributed under the terms of the GNU General Public License v2
+
+EAPI=8
+
+# Maintainers should consider lurking in the ZFS IRC channels (there's several)
+# and regularly checking ZFS GitHub issues and PRs. Look out for the 'zfs-*'
+# stable backport PRs when they're opened and subscribe to them for any important
+# cherry-picks that may be needed in advance.
+
+DISTUTILS_OPTIONAL=1
+DISTUTILS_USE_PEP517=setuptools
+PYTHON_COMPAT=( python3_{13..14} )
+
+MODULES_INITRAMFS_IUSE=+initramfs
+MODULES_OPTIONAL_IUSE=+modules
+
+inherit autotools bash-completion-r1 distutils-r1 flag-o-matic linux-info
+inherit linux-mod-r1 multiprocessing pam systemd udev usr-ldscript
+
+DESCRIPTION="Linux kernel module and userland utilities for ZFS"
+HOMEPAGE="https://github.com/openzfs/zfs"
+
+MODULES_KERNEL_MAX=7.0
+MODULES_KERNEL_MIN=4.18
+
+if [[ ${PV} == "9999" ]]; then
+	inherit git-r3
+	EGIT_REPO_URI="https://github.com/openzfs/zfs.git"
+else
+	VERIFY_SIG_OPENPGP_KEY_PATH=/usr/share/openpgp-keys/openzfs.asc
+	inherit verify-sig
+
+	MY_P="${P/_rc/-rc}"
+	SRC_URI="https://github.com/openzfs/${PN}/releases/download/${MY_P}/${MY_P}.tar.gz"
+	SRC_URI+=" verify-sig? ( https://github.com/openzfs/${PN}/releases/download/${MY_P}/${MY_P}.tar.gz.asc )"
+	S="${WORKDIR}/${MY_P}"
+
+	ZFS_KERNEL_COMPAT="${MODULES_KERNEL_MAX}"
+	# Increments minor eg 5.14 -> 5.15, and still supports override.
+	ZFS_KERNEL_DEP="${ZFS_KERNEL_COMPAT_OVERRIDE:-${ZFS_KERNEL_COMPAT}}"
+	ZFS_KERNEL_DEP="${ZFS_KERNEL_DEP%%.*}.$(( ${ZFS_KERNEL_DEP##*.} + 1))"
+
+	if [[ ${PV} != *_rc* ]]; then
+		KEYWORDS="~amd64 ~arm64 ~loong ~ppc64 ~riscv ~sparc"
+	fi
+fi
+
+LICENSE="BSD-2 CDDL MIT modules? ( debug? ( GPL-2+ ) )"
+# just libzfs soname major for now.
+# possible candidates are libzpool and libnvpair. Those do not provide stable abi, but are considered.
+# see libsoversion_check() below as well
+SLOT="0/7"
+IUSE="custom-cflags debug dist-kernel minimal nls pam python +rootfs selinux test-suite unwind"
+
+DEPEND="
+	dev-libs/openssl:=
+	net-libs/libtirpc:=
+	sys-apps/util-linux
+	virtual/zlib:=
+	virtual/libudev:=
+	!minimal? ( ${PYTHON_DEPS} )
+	pam? ( sys-libs/pam )
+	python? (
+		$(python_gen_cond_dep 'dev-python/cffi[${PYTHON_USEDEP}]' 'python*')
+	)
+	unwind? ( sys-libs/libunwind:= )
+"
+
+BDEPEND="
+	app-alternatives/awk
+	virtual/pkgconfig
+	modules? ( dev-lang/perl )
+	nls? ( sys-devel/gettext )
+	python? (
+		${DISTUTILS_DEPS}
+		|| (
+			dev-python/packaging[${PYTHON_USEDEP}]
+			dev-python/distlib[${PYTHON_USEDEP}]
+		)
+	)
+"
+
+# awk is used for some scripts, completions, and the Dracut module
+RDEPEND="
+	${DEPEND}
+	!prefix? ( virtual/udev )
+	app-alternatives/awk
+	sys-fs/udev-init-scripts
+	dist-kernel? ( virtual/dist-kernel:= )
+	rootfs? (
+		app-alternatives/cpio
+		app-misc/pax-utils
+	)
+	selinux? ( sec-policy/selinux-zfs )
+	test-suite? (
+		app-shells/ksh
+		sys-apps/kmod[tools]
+		sys-apps/util-linux
+		app-alternatives/bc
+		sys-block/parted
+		sys-fs/lsscsi
+		sys-fs/mdadm
+		sys-process/procps
+	)
+	!<sys-fs/zfs-kmod-2.4.0_rc2-r1
+"
+
+if [[ ${PV} != "9999" ]] ; then
+	BDEPEND+=" verify-sig? ( sec-keys/openpgp-keys-openzfs )"
+
+	IUSE+=" +dist-kernel-cap"
+	RDEPEND+="
+		dist-kernel-cap? ( dist-kernel? (
+			<virtual/dist-kernel-${ZFS_KERNEL_DEP}
+		) )
+	"
+fi
+
+REQUIRED_USE="
+	!minimal? ( ${PYTHON_REQUIRED_USE} )
+	python? ( !minimal )
+	test-suite? ( !minimal )
+"
+
+RESTRICT="test"
+
+PATCHES=(
+	"${FILESDIR}"/${PN}-2.1.11-gentoo.patch
+)
+
+pkg_pretend() {
+	use rootfs || return 0
+
+	if has_version virtual/dist-kernel && ! use dist-kernel; then
+		ewarn "You have virtual/dist-kernel installed, but"
+		ewarn "USE=\"dist-kernel\" is not enabled for ${CATEGORY}/${PN}"
+		ewarn "It's recommended to globally enable dist-kernel USE flag"
+		ewarn "to auto-trigger initrd rebuilds with kernel updates"
+	fi
+}
+
+pkg_setup() {
+	if use kernel_linux; then
+		if use modules; then
+			local CONFIG_CHECK="
+				EFI_PARTITION
+				ZLIB_DEFLATE
+				ZLIB_INFLATE
+				!DEBUG_LOCK_ALLOC
+				!PAX_KERNEXEC_PLUGIN_METHOD_OR
+			"
+			use debug && CONFIG_CHECK+="
+				DEBUG_INFO
+				FRAME_POINTER
+				!DEBUG_INFO_REDUCED
+			"
+			use rootfs && CONFIG_CHECK+="
+				BLK_DEV_INITRD
+				DEVTMPFS
+			"
+
+			kernel_is -lt 5 && CONFIG_CHECK+=" IOSCHED_NOOP"
+
+			if [[ ${PV} != 9999 ]] ; then
+				local kv_major_max kv_minor_max zcompat
+				zcompat="${ZFS_KERNEL_COMPAT_OVERRIDE:-${ZFS_KERNEL_COMPAT}}"
+				kv_major_max="${zcompat%%.*}"
+				zcompat="${zcompat#*.}"
+				kv_minor_max="${zcompat%%.*}"
+				kernel_is -le "${kv_major_max}" "${kv_minor_max}" || die \
+					"Linux ${kv_major_max}.${kv_minor_max} is the latest supported version"
+			fi
+
+			linux-mod-r1_pkg_setup
+		else
+			linux-info_pkg_setup
+		fi
+
+		if ! linux_config_exists; then
+			ewarn "Cannot check the linux kernel configuration."
+		else
+			if use test-suite; then
+				if linux_chkconfig_present BLK_DEV_LOOP; then
+					eerror "The ZFS test suite requires loop device support enabled."
+					eerror "Please enable it:"
+					eerror "    CONFIG_BLK_DEV_LOOP=y"
+					eerror "in /usr/src/linux/.config or"
+					eerror "    Device Drivers --->"
+					eerror "        Block devices --->"
+					eerror "            [X] Loopback device support"
+				fi
+			fi
+		fi
+	fi
+}
+
+libsoversion_check() {
+	local bugurl libzfs_sover
+	bugurl="https://bugs.gentoo.org/enter_bug.cgi?form_name=enter_bug&product=Gentoo+Linux&component=Current+packages"
+
+	libzfs_sover="$(grep -E 'libzfs_la_LDFLAGS[[:space:]]*\+?=[[:space:]]*-version-info' \
+		lib/libzfs/Makefile.am \
+		| grep -Eo '[0-9]+:[0-9]+:[0-9]+')"
+	libzfs_sover="${libzfs_sover%%:*}"
+
+	if [[ ${libzfs_sover} -ne $(ver_cut 2 ${SLOT}) ]]; then
+		echo
+		eerror "BUG BUG BUG BUG BUG BUG BUG BUG"
+		eerror "ebuild subslot does not match libzfs soversion!"
+		eerror "libzfs soversion: ${libzfs_sover}"
+		eerror "ebuild value: $(ver_cut 2 ${SLOT})"
+		eerror "This is a bug in the ebuild, please use the following URL to report it"
+		eerror "${bugurl}&short_desc=${CATEGORY}%2F${P}+update+subslot"
+		echo
+		# we want to abort for releases, but just print a warning for live ebuild
+		# to keep package installable
+		[[  ${PV} == "9999" ]] || die
+	fi
+}
+
+src_prepare() {
+	default
+	libsoversion_check
+
+	# Run unconditionally (bug #792627)
+	eautoreconf
+
+	# strip forced -Werror, #904378
+	sed -i '/BUILD_FREEBSD_TRUE/s/-Werror //g' Makefile.in || die
+
+	if [[ ${PV} != "9999" ]]; then
+		# Set revision number
+		sed -i "s/\(Release:\)\(.*\)1/\1\2${PR}-gentoo/" META || die "Could not set Gentoo release"
+	fi
+
+	if use python; then
+		pushd contrib/pyzfs >/dev/null || die
+		distutils-r1_src_prepare
+		popd >/dev/null || die
+	fi
+
+	# Tries to use /etc/conf.d which we reserve for OpenRC
+	sed -i -e '/EnvironmentFile/d' etc/systemd/system/zfs*.in || die
+
+	# prevent errors showing up on zfs-mount stop, #647688
+	# openrc will unmount all filesystems anyway.
+	sed -i "/^ZFS_UNMOUNT=/ s/yes/no/" "etc/default/zfs.in" || die
+}
+
+src_configure() {
+	use custom-cflags || strip-flags
+	use minimal || python_setup
+
+	local myconf=(
+		--bindir="${EPREFIX}/bin"
+		--sbindir="${EPREFIX}/sbin"
+		--enable-shared
+		--enable-sysvinit
+		--localstatedir="${EPREFIX}/var"
+		--sbindir="${EPREFIX}/sbin"
+		--with-config="$(usex modules all user)"
+		--with-dracutdir="${EPREFIX}/usr/lib/dracut"
+		--with-linux="${KV_DIR}"
+		--with-linux-obj="${KV_OUT_DIR}"
+		--with-udevdir="$(get_udevdir)"
+		--with-pamconfigsdir="${EPREFIX}/unwanted_files"
+		--with-pammoduledir="$(getpam_mod_dir)"
+		--with-systemdunitdir="$(systemd_get_systemunitdir)"
+		--with-systemdpresetdir="$(systemd_get_systempresetdir)"
+		--with-vendor=gentoo
+		# Building zfs-mount-generator.c on musl breaks as strndupa
+		# isn't available. But systemd doesn't support musl anyway, so
+		# just disable building it.
+		# UPDATE: it has been fixed since,
+		# https://github.com/openzfs/zfs/commit/1f19826c9ac85835cbde61a7439d9d1fefe43a4a
+		# but we still leave it as this for now.
+		$(use_enable !elibc_musl systemd)
+		$(use_enable debug)
+		$(use_enable nls)
+		$(use_enable pam)
+		$(use_enable python pyzfs)
+		$(use_with unwind libunwind)
+		--disable-static
+		$(usex minimal --without-python --with-python="${EPYTHON}")
+
+		# See gentoo.patch
+		GENTOO_MAKEARGS_EVAL="${MODULES_MAKEARGS[*]@Q}"
+		TEST_JOBS="$(makeopts_jobs)"
+	)
+
+	econf "${myconf[@]}"
+}
+
+src_compile() {
+	if use modules; then
+		emake "${MODULES_MAKEARGS[@]}"
+	else
+		default
+	fi
+
+	if use python; then
+		pushd contrib/pyzfs >/dev/null || die
+		distutils-r1_src_compile
+		popd >/dev/null || die
+	fi
+}
+
+src_install() {
+	DOCS=( AUTHORS COPYRIGHT META README.md )
+
+	if use modules; then
+		emake "${MODULES_MAKEARGS[@]}" DESTDIR="${ED}" install
+		modules_post_process
+		einstalldocs
+	else
+		default
+	fi
+	# distutils-r1_src_install tries to run einstalldocs as well
+	# bug #965156
+	unset DOCS
+
+	gen_usr_ldscript -a nvpair zfsbootenv zfs zfs_core zpool
+
+	use pam && { rm -rv "${ED}/unwanted_files" || die ; }
+
+	use test-suite || { rm -r "${ED}"/usr/share/zfs/{test-runner,zfs-tests,runfiles,*sh} || die ; }
+
+	find "${ED}" -name '*.la' -delete || die
+
+	dobashcomp contrib/bash_completion.d/zfs
+	bashcomp_alias zfs zpool
+
+	# strip executable bit from conf.d file
+	fperms 0644 /etc/conf.d/zfs
+
+	if use python; then
+		pushd contrib/pyzfs >/dev/null || die
+		distutils-r1_src_install
+		popd >/dev/null || die
+	fi
+
+	# enforce best available python implementation
+	use minimal || python_fix_shebang "${ED}/bin"
+}
+
+_old_layout_cleanup() {
+	# new files are just extra/{spl,zfs}.ko with no subdirs.
+	local olddir=(
+		avl/zavl
+		icp/icp
+		lua/zlua
+		nvpair/znvpair
+		spl/spl
+		unicode/zunicode
+		zcommon/zcommon
+		zfs/zfs
+		zstd/zzstd
+	)
+
+	# kernel/module/Kconfig contains possible compressed extentions.
+	local kext kextfiles
+		for kext in .ko{,.{gz,xz,zst}}; do
+		kextfiles+=( "${olddir[@]/%/${kext}}" )
+	done
+
+	local oldfile oldpath
+	for oldfile in "${kextfiles[@]}"; do
+		oldpath="${EROOT}/lib/modules/${KV_FULL}/extra/${oldfile}"
+		if [[ -f "${oldpath}" ]]; then
+			ewarn "Found obsolete zfs module ${oldfile} for current kernel ${KV_FULL}, removing."
+			rm -rv "${oldpath}" || die
+			# we do not remove non-empty directories just for safety in case there's something else.
+			# also it may fail if there are both compressed and uncompressed modules installed.
+			rmdir -v --ignore-fail-on-non-empty "${oldpath%/*.*}" || die
+		fi
+	done
+}
+
+pkg_postinst() {
+	udev_reload
+
+	if use modules; then
+		# Check for old module layout before doing anything else.
+		# only attempt layout cleanup if new .ko location is used.
+		local newko=( "${EROOT}/lib/modules/${KV_FULL}/extra"/{zfs,spl}.ko* )
+		# We check first array member, if glob above did not exand, it will be "zfs.ko*" and -f will return false.
+		# if glob expanded -f will do correct file precense check.
+		[[ -f ${newko[0]} ]] && _old_layout_cleanup
+
+		linux-mod-r1_pkg_postinst
+
+		if use x86 || use arm ; then
+			ewarn "32-bit kernels will likely require increasing vmalloc to"
+			ewarn "at least 256M and decreasing zfs_arc_max to some value less than that."
+		fi
+
+		if has_version sys-boot/grub ; then
+			ewarn "This version of OpenZFS includes support for new feature flags"
+			ewarn "that are incompatible with previous versions. GRUB2 support for"
+			ewarn "/boot with the new feature flags is not yet available."
+			ewarn "Do *NOT* upgrade root pools to use the new feature flags."
+			ewarn "Any new pools will be created with the new feature flags by default"
+			ewarn "and will not be compatible with older versions of OpenZFS. To"
+			ewarn "create a new pool that is backward compatible wih GRUB2, use "
+			ewarn
+			ewarn "zpool create -o compatibility=grub2 ..."
+			ewarn
+			ewarn "Refer to /usr/share/zfs/compatibility.d/grub2 for list of features."
+		fi
+	fi
+
+	if use rootfs; then
+		if ! has_version sys-kernel/genkernel && ! has_version sys-kernel/dracut; then
+			elog "Root on zfs requires an initramfs to boot"
+			elog "The following packages provide one and are tested on a regular basis:"
+			elog "  sys-kernel/dracut ( preferred, module maintained by zfs developers )"
+			elog "  sys-kernel/genkernel"
+		fi
+	fi
+
+	if systemd_is_booted || has_version sys-apps/systemd; then
+		einfo "Please refer to $(systemd_get_systempresetdir)/50-zfs.preset"
+		einfo "for default zfs systemd service configuration"
+	else
+		[[ -e "${EROOT}/etc/runlevels/boot/zfs-import" ]] || \
+			einfo "You should add zfs-import to the boot runlevel."
+		[[ -e "${EROOT}/etc/runlevels/boot/zfs-load-key" ]] || \
+			einfo "You should add zfs-load-key to the boot runlevel."
+		[[ -e "${EROOT}/etc/runlevels/boot/zfs-mount" ]]|| \
+			einfo "You should add zfs-mount to the boot runlevel."
+		[[ -e "${EROOT}/etc/runlevels/default/zfs-share" ]] || \
+			einfo "You should add zfs-share to the default runlevel."
+		[[ -e "${EROOT}/etc/runlevels/default/zfs-zed" ]] || \
+			einfo "You should add zfs-zed to the default runlevel."
+	fi
+}
+
+pkg_postrm() {
+	udev_reload
+}