Recent OpenZFS work, by @robn.

(Summary by the AI 🤖, read more about that).

• Current Focus Areas
• Pull requests: Active · Recently completed
• Day journal

Current Focus Areas

• Mounts / snapshot automounting — A colleague’s report of bind mount failures after zfs recv -F opened into structural work on ZFS dataset mount handling. #18415 landed a targeted fix for the z_teardown_lock / namespace_sem deadlock. The snapshot-mount-direct branch continues as the structural replacement — eliminating the userspace round-trip entirely with direct in-kernel vfsmount references. Current focus is implementing the manage_transit kernel callback with a unified zpl_snapentry_t type that replaces the separate snap/snapdir entry structures.

• Log spacemap condense — #16747 adds on-demand log-spacemap flush and a zpool condense command, allowing operators to flush log spacemaps ahead of export to avoid long export times on large pools. Originally opened in 2023, now re-lifed with rework to close txgs immediately during condense and flush based on a percentage of dirty unflushed blocks rather than a fixed metaslab count.

Pull requests

Active

Recently completed

Day journal

25 Apr (Saturday)

• Commented on #18464 — regression in #18296: libzfs_mnttab_cache(hdl, B_FALSE) became a no-op after “always enable the cache” change; Delphix’s multi-handle pool breaks because mounts via one handle populate its AVL, making ZFS_PROP_MOUNTED return wrong answers on other handles; acknowledged regression and referenced #18466 as fix
• Opened #18466 — libzfs/mnttab: restore ability to enable/disable cache; restores disabled mode by flushing AVL on each libzfs_mnttab_find() call when disabled; cache defaults to off, zfs explicitly re-enables
• Mounts — Continued snapshot-mount-direct: basic teardown function for zfsctl_destroy

24 Apr (Friday)

• Mounts — Continued snapshot-mount-direct: passing back mount flags through manage_transit; lifted and renamed zpl_snapdir_t to zpl_snapentry_t; initial unified snapentry shape

23 Apr (Thursday)

• Mounts — Continued snapshot-mount-direct: manage_transit callback writeup; dentry private management fixup

17 Apr (Friday)

• Mounts — Continued snapshot-mount-direct: working toward hooking automount via the manage_transit kernel callback — initial trigger implementation and struct scaffolding for transit state

• Created casenorm branch — WIP: ZFS case normalization; ZTS helper program and initial test conversion

• #18435 (Linux 7.0 compat: META, by behlendorf) merged; commented confirming all 7.0 release candidates and the final release tested clean

15 Apr (Wednesday)

• Mounts — Continued snapshot-mount-direct: debug on ioctl unmount paths; investigating invalidate flow and delayed-work scheduling; extensive tracing added

14 Apr (Tuesday)

• Mounts — Continued snapshot-mount-direct: extra ref on returned automount; discovered zfs_parse_fs_string() takes 3 args in Linux 6.18 and added a compat fix on the branch; debug on automount lifecycle

11 Apr (Saturday)

• Commented on #18422 — zfs, zpool: ignore SIGPIPE in main() (chrislongros); argued the blanket approach is too broad — interval and long-running modes (zpool iostat <pool> 1, zpool events -f) should not ignore SIGPIPE; questioned whether the motivating scenario actually produces exit 141

10 Apr (Friday)

• Mounts — Continued snapshot-mount-direct: substantial locking and lifecycle rework — restored MNT_INTERNAL with zfsctl_destroy() support; direct snapshot unmount at parent teardown; timer disarm on detach; reimplemented rename around the new locking structure; ref counting fixes and mount ownership checks
• Linux 7.1 compat — Created linux-7.1-compat branch — initial investigation: d_u.d_alias renamed back to d_alias in upcoming kernels

8 Apr (Wednesday)

• Mounts — Continued snapshot-mount-direct: reverted to single lock model, fixing lock bugs, extensive locking debug work; getting close

• Reviewed and approved #18415 — fix snapshot automount deadlock during concurrent zfs recv (ixhamza); drops z_teardown_lock before call_usermodehelper() to break the deadlock cycle with namespace_sem; fixes #18409 and #18073

• Commented on #18409 — snapshot automount deadlock during concurrent zfs recv; this is exactly the deadlock class snapshot-mount-direct eliminates (snapshot automount holds z_teardown_lock(R) across call_usermodehelper, blocking on namespace_sem(W) while /proc/self/mountinfo readers hold namespace_sem(R) and wait on z_teardown_lock); noted #18073 as possible duplicate

• Commented on #18333 — zfs_resume_fs() bail path deadlock and use-after-free; asked whether now resolved by #18310 merging

• #18407 (add ability to set user properties while changing encryption key) merged by behlendorf

• #18415 (fix snapshot automount deadlock during concurrent zfs recv) applied directly by behlendorf

7 Apr (Tuesday)

• Mounts — Continued snapshot-mount-direct: reworking locking model — new locking theory and initial implementation
• Opened #18407 — add ability to set user properties while changing encryption key; port of illumos change by @ahrens; extends zfs change-key -o ... to apply user properties in the same transaction as the key change, using the existing properties nvlist already threaded through to ZFS_IOC_CHANGE_KEY (merged 8 Apr)
• Commented on #18402 — continued discussion on “RFE: speed up SEEK_DATA syscalls”; real improvement requires considering dirty/uncommitted buffers which is very difficult; practical advice is tuning via zfs_dmu_offset_next_sync

6 Apr (Monday)

• Log spacemap condense — Agreed with amotin that metaslabs are the natural unit of flushing; reworked #16747 to count dirty metaslabs at condense start and flush N% per txg (default 5%, ~20s total); pushed log_spacemap: add counter for unflushed metaslabs to condense-log-spacemaps and commented with updated approach
• Commented on #18402 — “RFE: speed up SEEK_DATA syscalls”; explained zfs_dmu_offset_next_sync tunable: disabling it trades hole-detection accuracy for performance by skipping the txg sync

3 Apr (Friday)

• fs_context — Responded to behlendorf’s follow-up question on #18377; pushed rebase of kernel-mount-params-direct

• Mounts — Continued snapshot-mount-direct: mnt mismatch protection, MNT_NOSUID handling, cancel expire time on force unmount

• #18377 (linux/super: reimplement in-kernel mount options parser for fs_context) approved and applied directly by behlendorf

2 Apr (Thursday)

• Mounts — Continued snapshot-mount-direct branch: reworked snapshot entry model for multiple snapentries per snapshot; locking rejig; unmounting by snapentry rather than snapname — progressing toward proper vfsmount-backed snapshot lifecycle management

1 Apr (Wednesday)

• fs_context — Commented on #18377 — responded to behlendorf’s review question about using GFP_KERNEL in the fs_context callback
• Commented on #15918 — kernel BUG at mm/usercopy.c report; pointed to #17129 as potentially related (worker thread spinning in EFAULT loop after parent thread destroyed)

31 Mar (Tuesday)

• fs_context — Rebased #18377 onto current master and added a new commit to kernel-mount-params-direct: workaround for kernels that enforce “forbidden” mount options and reject them before zpl_get_tree() sees them; commented on PR to describe the new commit

• #18376 (Linux 7.0: ensure LSMs get to process mount options) merged by behlendorf

30 Mar (Monday)

• Log spacemap condense — Addressed amotin’s review comments on #16747: fixed metaslab sorting, made -t target argument optional (defaults to all), added -a for all-pools support following scrub/resilver precedent; pushed ABI bump on condense-log-spacemaps
• Log spacemap condense — Asked amotin on #16747 about how to pace incremental spacemap flushing — per-metaslab and per-block approaches both feel too arbitrary; wondering if the right answer is some central IO scheduling layer (the same structural problem FDT had)

28 Mar (Saturday)

• Commented on #18381 — user crash report from USB device removal; user on ZFS 2.1, which is well out of support; advised upgrade to 2.3/2.4 series, noting zed OOM fix and disk detection improvements since 2.2

27 Mar (Friday)

• fs_context — Opened #18377 from kernel-mount-params-direct — linux/super: reimplement in-kernel mount options parser for fs_context; removes old monolithic parser, moves options setup onto fs_context as a structured “intent” before mount/remount; foundational for snapshot automounting without userspace round-trips, libmount integration, and eventual removal of mount.zfs
• fs_context — Opened #18376 from new lsm-mount-opts branch — Linux 7.0: ensure LSMs get to process mount options; when a filesystem provides .parse_monolithic, the kernel skips LSM option processing entirely — breaking SELinux context/fscontext/defcontext/rootcontext properties since #18339; fix by calling security_sb_eat_lsm_opts() before stashing remaining options for zfs_domount() (merged 31 Mar)

26 Mar (Thursday)

• fs_context — Continued kernel-mount-params-direct branch: added vfs_t allocator and made it public; matched vfs_t lifetime to fs_context; removed zfs_mnt_t (passing mount params directly instead); removed parse_monolithic — further simplification of the mount parameter stack, aligning object lifetimes with the fs_context model and removing intermediate structures

25 Mar (Wednesday)

• Mounts — Continued mountset branch: introduced zfs_mountset_iter iterator API and libzfs_mountset_apply; migrated zpool_disable_datasets, zfs_iter_mounted, unshare_unmount, and mount-list callers to use the new iterator; removed zfs_mountset_foreach; marked zfs_mount/zfs_unmount as deprecated — the iterator-based model is becoming the primary interface

23 Mar (Monday)

• #18356 (pyzfs: update license tags/classifiers) merged by behlendorf

22 Mar (Sunday)

• Created header-split branch — WIP: exploring moving ZFS/SPL headers out of sys/ to new zfs/ and spl/ namespaces

21 Mar (Saturday)

• fs_context — Continued kernel-mount-params-direct branch — added better lifetime control and dup-on-copy for context; removed old options parser; mount parameter parsing in the kernel via fs_context params API taking cleaner shape

20 Mar (Friday)

• fs_context — Created kernel-mount-params-direct branch — reworking mount parameter parsing to happen directly in the kernel via the fs_context params API, continuing the flattening work from the always-fs-context branch
• Log spacemap — Re-lifed #16747 — on-demand log-spacemap flush and zpool condense command; reworked to close txg immediately during condense (like scrub) and flush based on % of dirty unflushed blocks rather than a fixed metaslab count
• Opened #18356 — pyzfs: update license tags/classifiers; fix deprecated setuptools license classifier warning by switching to SPDX identifier and adding spdxcheck tag (merged 23 Mar)
• Reviewed and approved #18354 — Linux 7.0: autoconf: remove copy-from-user-inatomic API checks (john-cabaj); PowerPC build fix removing an unnecessary API check that now pulls in a GPL-only symbol

18 Mar (Wednesday)

• Mounts — Created snapshot-mount-direct branch — reworking zfs_ctldir snapshot mounting to hold a vfsmount directly in the snapshot entry; refactoring snap/snapmount paths, removing chroot handling, options allocation, and se_path/mountpoint generation; exploring autoexpiry via dentry invalidation and investigating a leaked zfsvfs reference

• #18339 (linux/super: require fs_context, remove support for old mount API) approved by behlendorf and applied directly

17 Mar (Tuesday)

• fs_context — Opened #18339 — linux/super: require fs_context, remove support for old mount API; first PR from the always-fs-context branch — drops the HAVE_FS_CONTEXT-gated old entry points, flattens the call chain into zpl_get_tree() and zpl_reconfigure(); full ZTS on 6.12.63, compile-checked back to 4.18; note scoped to zpl_super.c only, further cleanup in subsequent PRs

• Responded to amotin’s review comment on #18331 — explained that generic_setlease predates filelock.h: it has always existed but its declaration moved from fs.h to filelock.h at some point, so the #ifdef HAVE_FILELOCK_HEADER guard is for the include only, not the symbol

• #18331 (Linux 7.0: also set setlease handler on directories) approved by amotin and behlendorf; merged by tonyhutter

16 Mar (Monday)

• Mounts — Continued mountset branch: pushed zfs_mountset_apply prototype and initial hacks wiring it into mount callers — exploring an apply-based model for executing a set of mount operations as a unit

• Mounts — Created always-fs-context branch — full init_fs_context adoption: drops HAVE_FS_CONTEXT compatibility shims entirely and refuses to build without fs_context; follow-through on #18260’s groundwork and the 2.5 goal flagged by behlendorf

• Commented on #18316 — statx requires <sys/stat.h> include file (wbx-github/uClibc-ng build failure in Buildroot); suggested using configure to detect statx and skip the test binary if absent; then retracted in favour of @jolivain’s similar-but-better solution

• #18331 (Linux 7.0: also set setlease handler on directories) confirmed working by satmandu on 7.0.0-rc3

15 Mar (Sunday)

• Opened #18331 — Linux 7.0: also set setlease handler on directories; prompted by @satmandu’s report of NFS access failures on 7.0 (worked on 6.19); #18215 added the regular-file setlease handler but missed directory file ops, causing EINVAL when the NFS server tries to take a directory lease

14 Mar (Saturday)

• Mounts — Continued mountset branch: added initial mountbuilder/mountopt APIs — a structured layer for constructing mount operations and managing mount options, building on top of the zfs_mountset abstraction

13 Mar (Friday)

• Mounts — Continued mountset branch: converted zpool_disable_datasets to mountset; reworked zfs_unmount and zfs_unshare for the new API; migration through the remaining libzfs/cmd mount callers continuing

12 Mar (Thursday)

• Mounts — Continued mountset branch: converted unshare_unmount_path, zfs_do_userspace, zfs_for_each, zfs_path_to_zhandle, and zinject to the mountset API; removed legacy getextmntent from libspl; branch migrating steadily through the remaining libzfs/cmd mount callers

• Opened #18312 — config: fix STATX_MNT_ID detection; _GNU_SOURCE was not defined in the configure check, so sys/stat.h wouldn’t produce struct statx or STATX_* defines; missed when a prior change switched from linux/stat.h to sys/stat.h

• Opened #18313 — contrib/debian: add zilstat.1 to Debian packaging install lists; CI fix following #18303 (zilstat: add man page) which caused Debian packaging to fail

• Commented on #18310 — s_active leak fix in zfsvfs_hold() when z_unmounted is true (mischivus); agreed a leak exists but raised questions about whether zfsvfs_rele() would be more appropriate and what happens in the zfsvfs_create() fallback path

• #18312 (config: fix STATX_MNT_ID detection) approved by ixhamza; merged by behlendorf

• #18313 (contrib/debian: add zilstat.1 manpage to installation list) approved by ixhamza; merged by behlendorf

11 Mar (Wednesday)

• Mounts — Continued mountset branch: converted unshare_unmount and zfs_iter_mounted to use the mountset iterator, migrating more of libzfs off the legacy mnttab API
• Reviewed (changes requested) #18304 — README: add FreeBSD 14.4-RELEASE alongside 15.0 (grahamperrin); suggested listing only the latest release of each series rather than accumulating every version

10 Mar (Tuesday)

• Mounts — Started mountset branch — concrete implementation of the zfs_mountset abstraction sketched in the #18296 design discussion: interface definition, libmount-based Linux backend, libzfs global mountset instance, and migration of zfs_is_mounted and the legacy libzfs_mnttab API to use the new interface

• #18295 (Linux: remove minimum version requirement) applied directly by behlendorf

• #18296 (libzfs: mnttab cleanup) applied directly by behlendorf

9 Mar (Monday)

• Linux support — Opened #18295 — remove minimum Linux kernel version requirement; prefer configure checks over a version gate; document actually-supported distros and kernels in README instead

• Mounts — Opened #18296 — libzfs mnttab cleanup; pulls libzfs_mnttab_* functions into libzfs_mnttab.c, general modernisation (SPL mutexes, alloc/free helpers), removes unused legacy struct extmnttab and gettmntany(); preparatory cleanup carried across every mount management prototype, sent separately since it stands on its own

• Mounts — Commented on #18296 in response to @lundman — sketched design direction for mount abstraction: opaque mntent object representing a dataset/mountpoint pair, with OS-specific methods (mount, unmount, property changes, sort); libmount wrapping on Linux, direct implementation on FreeBSD/Windows; libzfs and tools would only ever interact through the abstraction

• Mounts — Started libzfs-mnttab-libmount branch — WIP initial shape of OS-specific mount API, integrating mnttab cleanup changes with the libmount work into a new branch; first cut at the opaque object abstraction described in the design comment

• Reviewed and approved #18290 — FreeBSD: improve dmesg kernel message prefix (concussious); noted Linux mixes ZFS: and zfs: prefixes too, consistency wouldn’t hurt

• Closed #17351 — rename zed binary to zfs-zed; no compelling case made; resolving namespace clashes in a global shared namespace is out of scope

• Linux support — Responded to review nit on #18295 — fixed “prioritise” spelling; pushed updated branch

• Mounts — Responded to review nit from @ixhamza on #18296 — fixed commit title typos (mnntab/gettmntany); pushed updated branch

• #18295 (Linux: remove minimum version requirement) approved by behlendorf

• #18296 (libzfs: mnttab cleanup) approved by behlendorf and ixhamza

8 Mar (Sunday)

• Linux support — Started linux-no-minimum branch — prompted by fs-context adoption work; investigated minimum kernel version requirement; found 4.18 minimum is RHEL8-derived, no longer compiles with modern toolchains, and doesn’t reflect actual support commitments

7 Mar (Saturday)

• Mounts — Split mountcache-initial branch off mountcache — isolating the initial mountcache infrastructure (the /proc/mountinfo parser, dual-tree cache, zfs_is_mounted integration) as a discrete unit for submission as a PR

6 Mar (Friday)

• Commented on #17000 — design discussion on zfs create -pp syntax for creating parents with canmount=no; suggested -O canmount=no as a general “properties for implicitly-created parents” alternative (intelfx); conceded it was a stretch; behlendorf resolved to proceed with -pp (intelfx)

• #18281 (libzpool: lift zfs_file ops out to separate source file) merged by behlendorf

5 Mar (Thursday)

• SHA-512 / SIMD build — Opened #18285 — separate SIMD compile checks for userspace and kernel toolchains; HAVE_SIMD() selector macro picks the right set at compile time; eliminates Ubuntu 24.04 builder failures where objtool rejects SHA512EXT in the kernel module even though the host compiler supports it

• #18285 (separate SIMD compile checks for userspace and kernel) approved by behlendorf and directly applied

4 Mar (Wednesday)

• SHA-512 / SIMD build — Investigated behlendorf’s report of Ubuntu 24.04 build failure in #18233; diagnosed as toolchain/kernel mismatch: compiler supports SHA512EXT but objtool in the kernel rejects it; responded with intent to fix properly; started simd-config branch — refactoring SIMD feature detection to test against both host and kernel toolchains separately

• Opened #18281 — split zfs_file_* ops out of libzpool/kernel.c into a new libzpool/zfs_file_os.c source file; cleanup requested by @lundman to ease porting work (merged 6 Mar)

• #18259 (more consistent TREE_* macro use in AVL comparators) merged by behlendorf

• #18281 (libzpool: lift zfs_file ops out to separate source file) approved by lundman

3 Mar (Tuesday)

• Mounts — Created libmount branch — WIP: reworking ZFS userspace mount management to use Linux’s libmount library; detect and link libmount, initial mount/unmount through it, mnttab_cache remade as a libmount wrapper, zfs_iter_mounted reimplemented over mtab

• Responded to amotin’s review nits on #18259 — removed unneeded lvb != rvb redundancy (good catch); defended belt-and-suspenders wrapping of zbookmark_compare() (AVL comparators must return -1/0/1, non-AVL functions could break at distance if changed); pushed updated branch

• #18259 (more consistent TREE_* macro use in AVL comparators) reviewed by amotin with nits

2 Mar (Monday)

• Commented on #18259 — responded to amotin’s Clang disassembly feedback; pushed rebase to master with || → | in zfs_refcount_compare to eliminate extra branch (tradeoff: load instead, on same cacheline); noted potential for separate search vs insertion comparator as a future idea

27 Feb (Friday)

• Mounts — Created fs-context-uplift branch — WIP: beginning full init_fs_context mount API adoption, next step following #18260
• Commented on #18259 — posted annotated disassembly showing macro changes produce identical codegen in kernel and userspace builds; noted spa_mapping_key_compare() as another candidate for the same treatment

26 Feb (Thursday)

• #18233 (SHA-512 via Intel SHA512 extension) merged by behlendorf
• #18260 (prefer fs_context mount API when available, groundwork for full init_fs_context adoption) merged by behlendorf

25 Feb (Wednesday)

• Mounts — Continued progress on mountcache branch: built out core mountcache infrastructure — alloc/free, locking (rrwlock), /proc/mountinfo refresh, dual-tree lookup (by dataset and by mountpoint), integrated cache into libzfs_handle_t, wired up zfs_is_mounted to use it; then filtered non-ZFS mount entries out of cache, generalised foreach iterator
• SHA-512 performance — Responded to review comment on #18233 — clarified 0.00 CPB values in sha2_test output when the CPU MHz argument is omitted; not a regression
• SHA-512 performance — Posted performance results on Core Ultra 9 285K VM for #18233: sha512ext at 1.82 CPB vs avx2 at 3.18 CPB (~1.75x faster on Arrow Lake desktop)
• Reviewed and approved #18261 — remove deprecated Fedora 41 from CI (tonyhutter)

24 Feb (Tuesday)

• Linux 7.0 compat — Commented on #18216: confirmed full ZTS pass on 7.0-rc1; maintainer flagged init_fs_context full adoption as a 2.5 goal

• SHA-512 performance — Rebased #18233 to master; shared first real hardware test results (Core Ultra 7 258V, ThinkPad X1 gen 13): sha512ext hashes 1GiB in 205ms vs avx2 at 945ms — ~4.6x faster; in-kernel test to follow

• Opened #18259 — more consistent use of TREE_CMP()/TREE_ISIGN()/TREE_PCMP() macros in AVL comparators; ZTS pass on Linux; notes a few curious constructions worth discussing (merged 4 Mar)

• Linux 7.0 compat — Opened #18260 — prefer new fs_context mount API when available (compiles back to 5.2), inverting the 7.0 compat shim check; sending to CI to verify support range before full init_fs_context adoption (merged 26 Feb)

• #18216 (Linux 7.0 compat: blk_queue_nonrot, posix_acl_to_xattr, legacy mount API removal) merged by behlendorf

• #18233 (SHA-512 via Intel SHA512 extension) approved by tonyhutter

23 Feb (Monday)

• Mounts — Started new mountcache branch — fresh approach to mount caching, starting with an initial /proc/mountinfo parser
• Mounts — Started kernel-mount-direct branch — reworking zfs_ctldir snapshot mounting to hold a vfsmount directly in the snapshot entry rather than going through the automount path
• Started superblock-experiments branch — early WIP: reimagining superblock vs inode relationship

22 Feb (Sunday)

• #18215 (F_SETLEASE compatibility fix) merged
• #18233 (SHA-512 via Intel SHA512 extension) approved by AttilaFueloep; nit about .byte directives in zfs_sha512_transform_sha512ext

20 Feb (Friday)

• #18230 (zdb --key crash fix and test harness improvements) merged by behlendorf
• #18216 (blk_queue_nonrot/posix_acl_to_xattr/legacy mount API changes) approved by behlendorf

19 Feb (Thursday)

• SHA-512 performance — Responded to two review comments on #18233 — fixed bugs in cpuid detection logic caught by reviewer; pushed sha512ext (multiple iterations)

• SHA-512 performance — Fixed $NF awk bug; pushed sha2-test-all-correct (final)

• Mounts — Commented on #18205 — investigated full unmount/remount approach; concluded it needs more work; PR left as safety-check only for now

• Mounts — Created mnttab-cache-highlander branch (WIP: mount table caching)

• #18232 (sha2_test correctness checks for all implementations) merged by behlendorf

• #18216 (Linux 7.0 compat) approved by tonyhutter

18 Feb (Wednesday)

• SHA-512 performance — Created sha512ext and sha2-test-all-correct branches
• SHA-512 performance — Opened #18232 — extend sha2_test correctness checks to all implementations; fix output formatting and get_cpu_freq for variable-frequency CPUs (merged 19 Feb)
• SHA-512 performance — Opened #18233 — icp: SHA-512 via Intel SHA512 extension; tested via Intel SDE with Arrow Lake emulation; requesting community testing on real hardware (merged 26 Feb)
• SHA-512 performance — Pushed sha512ext and sha2-test-all-correct branches (iteration)
• Linux 7.0 compat — Pushed setlease branch; commented on #18215 — addressed review feedback on commit structure
• Mounts — Commented on #18207 — discussed canonical vs. use-time normalisation of mountpoint=; noted cross-OS implications
• SHA-512 performance — Responded to review on #18230 — leftover error-threading code in zdb_derive_key()

17 Feb (Tuesday)

• SHA-512 performance — Created sha512-avx512 branch and pushed — deleted same day (AVX-512 approach abandoned)
• SHA-512 performance — Created zdb-load-key-smarter branch; opened #18230 — fix zdb --key crash on unencrypted datasets; fix test harness to catch silent zdb assertion failures (merged 20 Feb)

16 Feb (Monday)

• Linux 7.0 compat — Pushed setlease branch; responded to review on #18215, fixed commit split
• Code review: #18222, #18133

15 Feb (Sunday)

• Linux 7.0 compat — Created setlease branch; opened #18215 — explicitly set .setlease = generic_setlease to survive removal of kernel fallback in 7.0 (merged 22 Feb)
• Linux 7.0 compat — Pushed linux-7.0-compat branch; opened #18216 — handle blk_queue_nonrot rename, new posix_acl_to_xattr signature, legacy mount API removal
• Code review: #18214

14 Feb (Saturday)

• Linux 7.0 compat — Created linux-7.0-compat branch

13 Feb (Friday)

• Mounts — Commented on #18205 — worked out root cause (outstanding long holds prevent destroy); updated PR description

12 Feb (Thursday)

• Mounts — Created flatten-mount-point branch; opened #18207 — flatten mountpoint= parameter before sort in mountpoint_cmp, fixing mount ordering when trailing slashes present
• Mounts — Commented on #18205 responding to CI failures

11 Feb (Wednesday)

• Linux 6.19 compat — Approved #18197 META update to mark 6.19 support (tonyhutter) — merged; 6.19 work now fully landed
• Mounts — Created no-busy-receive-destroy branch; opened #18205 — abort zfs recv -F with EBUSY when dataset has outstanding bind mounts

9 Feb (Monday)

• Linux 6.19 compat — Confirmed ZTS run passed on 6.19 release day; #18053 effectively complete
• Opened and merged #18189 — AUTHORS update

6 Feb (Friday)

• Code review: #18179, #18180