zfs-2.2.1

Supported Platforms

• Linux: compatible with 3.10 - 6.6 kernels
• FreeBSD: compatible with releases starting from 12.2-RELEASE

Changes

Note: We recommend that anyone running zfs-2.2.0 to please update to this release. Gentoo users have identified a block cloning bug (#15526) that can result in data corruption in zfs-2.2.0. To workaround this, zfs-2.2.1 disables block cloning by default (see #15529 and 479dca5). Users running the 2.1.x branch or older are unaffected, as block cloning is a 2.2.x-only feature.

• ZTS: Fix 'could not unmount datasets' on Alma 9 (#15542)
• zfs-2.2.1: Disable block cloning by default (479dca5)
• Add a tunable to disable BRT support. #15529
• Packaging: Auto-generate changelog during configure (#15528)
• Linux 6.6 compat: META #15520
• Workaround UBSAN errors for variable arrays #15510
• ZTS: Test for all known zpool feature sets #15505
• Update zpool-features.7 for grub2 compatibility list updates #15505
• Workaround to allow openzfs-zfs-dkms install on Ubuntu #15503
• Linux: reject read/write mapping to immutable file only on VM_SHARED #15344
• Fix accounting error for pending sync IO ops in zpool iostat #15478
• Linux 6.6 compat: fix implicit conversion error with debug build #15489
• Remove obsolete_counts from grub2 compatibility list #15499
• Fix dkms installation of deb packages created with Alien. #15415
• Add all read-only compatible zpool features to grub2 compatibility #15459
• Unify arc_prune_async() code #15456
• Tune zio buffer caches and their alignments #15452
• DMU: Do not pre-read holes during write #15371
• Linux 6.6 compat: fsync_bdev() has been removed in favor of sync_blockdev() #15263
• Linux 6.6 compat: generic_fillattr has a new u32 request_mask added at arg2 #15263
• Linux 6.6 compat: use inode_get/set_ctime*(...) #15263 #15257
• Read prefetched buffers from L2ARC #15451
• Add mutex_enter_interruptible() for interruptible sleeping IOCTLs #15360
• Revert "zvol: Temporally disable blk-mq" #15439
• zvol: Remove broken blk-mq optimization #15351
• "ARC prefetch metadata accesses:" appears twice in the output. #15427
• Trust ARC_BUF_SHARED() more #15397
• Remove lock from dsl_pool_need_dirty_delay() #15390
• run-zts test procfs/pool_state failed with uncorrectable I/O failure #15364
• Properly pad struct tx_cpu to cache line #15402
• Fix typo in tests/zfs-tests/tests/functional/cli_user/misc/misc.cfg #15417
• FreeBSD: taskq: Remove unused declaration #15416
• Set spa_ccw_fail_time=0 when expanding a vdev. #15405
• Fix ZED auto-replace for VDEVs using by-id paths #15363
• Add zfs_prepare_disk script for disk firmware install #15243
• Large sync writes perform worse with slog #14378
• FreeBSD: Improve taskq wrapper #15356
• Fix block cloning between unencrypted and encrypted datasets #15464 #15465