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Rob Norris d34fd6cff3 Linux 7.0: posix_acl_to_xattr() now allocates memory 
Kernel devs noted that almost all callers to posix_acl_to_xattr() would
check the ACL value size and allocate a buffer before make the call. To
reduce the repetition, they've changed it to allocate this buffer
internally and return it.

Unfortunately that's not true for us; most of our calls are from
xattr_handler->get() to convert a stored ACL to an xattr, and that call
provides a buffer. For now we have no other option, so this commit
detects the new version and wraps to copy the value back into the
provided buffer and then free it.

Sponsored-by: TrueNAS
Reviewed-by: Tony Hutter <hutter2@llnl.gov>
Reviewed-by: Brian Behlendorf <behlendorf1@llnl.gov>
Signed-off-by: Rob Norris <rob.norris@truenas.com>
Closes #18216
2026-02-23 09:44:48 -08:00
..
.gitignore Prepare SPL repo to merge with ZFS repo 2018-05-29 14:51:39 -07:00
always-arch.m4 build: add SPDX license tags to build system files 2026-01-08 15:08:03 -08:00
always-compiler-options.m4 build: add SPDX license tags to build system files 2026-01-08 15:08:03 -08:00
always-cppcheck.m4 build: add SPDX license tags to build system files 2026-01-08 15:08:03 -08:00
always-parallel.m4 build: add SPDX license tags to build system files 2026-01-08 15:08:03 -08:00
always-python.m4 build: add SPDX license tags to build system files 2026-01-08 15:08:03 -08:00
always-pyzfs.m4 build: add SPDX license tags to build system files 2026-01-08 15:08:03 -08:00
always-sed.m4 build: add SPDX license tags to build system files 2026-01-08 15:08:03 -08:00
always-shellcheck.m4 build: add SPDX license tags to build system files 2026-01-08 15:08:03 -08:00
always-system.m4 build: add SPDX license tags to build system files 2026-01-08 15:08:03 -08:00
ax_code_coverage.m4 SPDX: license tags: LGPL-2.1-or-later 2025-03-13 17:57:12 -07:00
ax_compare_version.m4 build: add SPDX license tags to build system files 2026-01-08 15:08:03 -08:00
ax_count_cpus.m4 build: add SPDX license tags to build system files 2026-01-08 15:08:03 -08:00
ax_python_devel.m4 build: add SPDX license tags to build system files 2026-01-08 15:08:03 -08:00
ax_restore_flags.m4 build: add SPDX license tags to build system files 2026-01-08 15:08:03 -08:00
ax_save_flags.m4 build: add SPDX license tags to build system files 2026-01-08 15:08:03 -08:00
config.rpath Add config.rpath for AM_GNU_GETTEXT 2020-07-10 14:26:12 -07:00
CppCheck.am build: add SPDX license tags to build system files 2026-01-08 15:08:03 -08:00
deb.am build: add SPDX license tags to build system files 2026-01-08 15:08:03 -08:00
find_system_library.m4 build: add SPDX license tags to build system files 2026-01-08 15:08:03 -08:00
gettext.m4 build: add SPDX license tags to build system files 2026-01-08 15:08:03 -08:00
host-cpu-c-abi.m4 build: add SPDX license tags to build system files 2026-01-08 15:08:03 -08:00
iconv.m4 build: add SPDX license tags to build system files 2026-01-08 15:08:03 -08:00
kernel-access-ok-type.m4 build: add SPDX license tags to build system files 2026-01-08 15:08:03 -08:00
kernel-acl.m4 Linux 7.0: posix_acl_to_xattr() now allocates memory 2026-02-23 09:44:48 -08:00
kernel-add-disk.m4 build: add SPDX license tags to build system files 2026-01-08 15:08:03 -08:00
kernel-assign_str.m4 build: add SPDX license tags to build system files 2026-01-08 15:08:03 -08:00
kernel-automount.m4 build: add SPDX license tags to build system files 2026-01-08 15:08:03 -08:00
kernel-bio_max_segs.m4 build: add SPDX license tags to build system files 2026-01-08 15:08:03 -08:00
kernel-bio.m4 build: add SPDX license tags to build system files 2026-01-08 15:08:03 -08:00
kernel-blk-queue.m4 Linux 7.0: blk_queue_nonrot() renamed to blk_queue_rot() 2026-02-23 09:44:20 -08:00
kernel-blkdev.m4 build: add SPDX license tags to build system files 2026-01-08 15:08:03 -08:00
kernel-block-device-operations.m4 build: add SPDX license tags to build system files 2026-01-08 15:08:03 -08:00
kernel-commit-metadata.m4 build: add SPDX license tags to build system files 2026-01-08 15:08:03 -08:00
kernel-config-defined.m4 build: add SPDX license tags to build system files 2026-01-08 15:08:03 -08:00
kernel-copy-from-user-inatomic.m4 build: add SPDX license tags to build system files 2026-01-08 15:08:03 -08:00
kernel-cpu_has_feature.m4 build: add SPDX license tags to build system files 2026-01-08 15:08:03 -08:00
kernel-declare-event-class.m4 build: add SPDX license tags to build system files 2026-01-08 15:08:03 -08:00
kernel-dentry-operations.m4 build: add SPDX license tags to build system files 2026-01-08 15:08:03 -08:00
kernel-discard-granularity.m4 build: add SPDX license tags to build system files 2026-01-08 15:08:03 -08:00
kernel-drop-inode.m4 build: add SPDX license tags to build system files 2026-01-08 15:08:03 -08:00
kernel-file.m4 build: add SPDX license tags to build system files 2026-01-08 15:08:03 -08:00
kernel-filelock.m4 Linux 7.0: explicitly set setlease handler to kernel implementation 2026-02-22 11:39:06 -08:00
kernel-filemap-splice-read.m4 build: add SPDX license tags to build system files 2026-01-08 15:08:03 -08:00
kernel-flush_dcache_page.m4 build: add SPDX license tags to build system files 2026-01-08 15:08:03 -08:00
kernel-fmode-t.m4 build: add SPDX license tags to build system files 2026-01-08 15:08:03 -08:00
kernel-follow-down-one.m4 build: add SPDX license tags to build system files 2026-01-08 15:08:03 -08:00
kernel-fpu.m4 build: add SPDX license tags to build system files 2026-01-08 15:08:03 -08:00
kernel-free-inode.m4 build: add SPDX license tags to build system files 2026-01-08 15:08:03 -08:00
kernel-fst-mount.m4 build: add SPDX license tags to build system files 2026-01-08 15:08:03 -08:00
kernel-fsync-bdev.m4 build: add SPDX license tags to build system files 2026-01-08 15:08:03 -08:00
kernel-generic_fadvise.m4 build: add SPDX license tags to build system files 2026-01-08 15:08:03 -08:00
kernel-generic_fillattr.m4 build: add SPDX license tags to build system files 2026-01-08 15:08:03 -08:00
kernel-generic_io_acct.m4 build: add SPDX license tags to build system files 2026-01-08 15:08:03 -08:00
kernel-genhd-flags.m4 build: add SPDX license tags to build system files 2026-01-08 15:08:03 -08:00
kernel-get-disk-ro.m4 build: add SPDX license tags to build system files 2026-01-08 15:08:03 -08:00
kernel-iattr-vfsid.m4 build: add SPDX license tags to build system files 2026-01-08 15:08:03 -08:00
kernel-idmap_mnt_api.m4 build: add SPDX license tags to build system files 2026-01-08 15:08:03 -08:00
kernel-inode-create.m4 build: add SPDX license tags to build system files 2026-01-08 15:08:03 -08:00
kernel-inode-getattr.m4 build: add SPDX license tags to build system files 2026-01-08 15:08:03 -08:00
kernel-inode-lookup.m4 build: add SPDX license tags to build system files 2026-01-08 15:08:03 -08:00
kernel-inode-permission.m4 build: add SPDX license tags to build system files 2026-01-08 15:08:03 -08:00
kernel-inode-setattr.m4 build: add SPDX license tags to build system files 2026-01-08 15:08:03 -08:00
kernel-inode-state.m4 build: add SPDX license tags to build system files 2026-01-08 15:08:03 -08:00
kernel-inode-times.m4 build: add SPDX license tags to build system files 2026-01-08 15:08:03 -08:00
kernel-insert-inode-locked.m4 build: add SPDX license tags to build system files 2026-01-08 15:08:03 -08:00
kernel-is_owner_or_cap.m4 build: add SPDX license tags to build system files 2026-01-08 15:08:03 -08:00
kernel-kasan-enabled.m4 build: add SPDX license tags to build system files 2026-01-08 15:08:03 -08:00
kernel-kmap-atomic-args.m4 build: add SPDX license tags to build system files 2026-01-08 15:08:03 -08:00
kernel-kmap-local-page.m4 build: add SPDX license tags to build system files 2026-01-08 15:08:03 -08:00
kernel-kmem.m4 build: add SPDX license tags to build system files 2026-01-08 15:08:03 -08:00
kernel-kthread.m4 build: add SPDX license tags to build system files 2026-01-08 15:08:03 -08:00
kernel-kuid-helpers.m4 build: add SPDX license tags to build system files 2026-01-08 15:08:03 -08:00
kernel-kuidgid.m4 build: add SPDX license tags to build system files 2026-01-08 15:08:03 -08:00
kernel-make-request-fn.m4 build: add SPDX license tags to build system files 2026-01-08 15:08:03 -08:00
kernel-misc-minor.m4 build: add SPDX license tags to build system files 2026-01-08 15:08:03 -08:00
kernel-mkdir.m4 build: add SPDX license tags to build system files 2026-01-08 15:08:03 -08:00
kernel-mknod.m4 build: add SPDX license tags to build system files 2026-01-08 15:08:03 -08:00
kernel-mm-page-flags.m4 Fix build for Linux 6.18 with PowerPC/RISC-V kernels. (#18145) 2026-02-02 14:16:10 -08:00
kernel-mm-pagemap.m4 build: add SPDX license tags to build system files 2026-01-08 15:08:03 -08:00
kernel-namespace.m4 build: add SPDX license tags to build system files 2026-01-08 15:08:03 -08:00
kernel-objtool.m4 build: add SPDX license tags to build system files 2026-01-08 15:08:03 -08:00
kernel-pagemap-folio_wait_bit.m4 build: add SPDX license tags to build system files 2026-01-08 15:08:03 -08:00
kernel-pagemap-readahead-page.m4 build: add SPDX license tags to build system files 2026-01-08 15:08:03 -08:00
kernel-pde-data.m4 build: add SPDX license tags to build system files 2026-01-08 15:08:03 -08:00
kernel-percpu.m4 build: add SPDX license tags to build system files 2026-01-08 15:08:03 -08:00
kernel-pin-user-pages.m4 build: add SPDX license tags to build system files 2026-01-08 15:08:03 -08:00
kernel-proc-operations.m4 build: add SPDX license tags to build system files 2026-01-08 15:08:03 -08:00
kernel-reclaim_state.m4 build: add SPDX license tags to build system files 2026-01-08 15:08:03 -08:00
kernel-register_sysctl_table.m4 build: add SPDX license tags to build system files 2026-01-08 15:08:03 -08:00
kernel-rename.m4 build: add SPDX license tags to build system files 2026-01-08 15:08:03 -08:00
kernel-revalidate-disk-size.m4 build: add SPDX license tags to build system files 2026-01-08 15:08:03 -08:00
kernel-sb-dying.m4 build: add SPDX license tags to build system files 2026-01-08 15:08:03 -08:00
kernel-sb-wb-err.m4 build: add SPDX license tags to build system files 2026-01-08 15:08:03 -08:00
kernel-sched.m4 build: add SPDX license tags to build system files 2026-01-08 15:08:03 -08:00
kernel-security-inode-init.m4 build: add SPDX license tags to build system files 2026-01-08 15:08:03 -08:00
kernel-set-nlink.m4 build: add SPDX license tags to build system files 2026-01-08 15:08:03 -08:00
kernel-setattr-prepare.m4 build: add SPDX license tags to build system files 2026-01-08 15:08:03 -08:00
kernel-sget-args.m4 build: add SPDX license tags to build system files 2026-01-08 15:08:03 -08:00
kernel-show-options.m4 build: add SPDX license tags to build system files 2026-01-08 15:08:03 -08:00
kernel-shrink.m4 build: add SPDX license tags to build system files 2026-01-08 15:08:03 -08:00
kernel-siginfo.m4 build: add SPDX license tags to build system files 2026-01-08 15:08:03 -08:00
kernel-stdarg.m4 build: add SPDX license tags to build system files 2026-01-08 15:08:03 -08:00
kernel-strlcpy.m4 build: add SPDX license tags to build system files 2026-01-08 15:08:03 -08:00
kernel-symlink.m4 build: add SPDX license tags to build system files 2026-01-08 15:08:03 -08:00
kernel-sysfs.m4 build: add SPDX license tags to build system files 2026-01-08 15:08:03 -08:00
kernel-timer.m4 build: add SPDX license tags to build system files 2026-01-08 15:08:03 -08:00
kernel-tmpfile.m4 build: add SPDX license tags to build system files 2026-01-08 15:08:03 -08:00
kernel-totalhigh_pages.m4 build: add SPDX license tags to build system files 2026-01-08 15:08:03 -08:00
kernel-totalram-pages-func.m4 build: add SPDX license tags to build system files 2026-01-08 15:08:03 -08:00
kernel-truncate-setsize.m4 build: add SPDX license tags to build system files 2026-01-08 15:08:03 -08:00
kernel-types.m4 build: add SPDX license tags to build system files 2026-01-08 15:08:03 -08:00
kernel-usleep_range.m4 build: add SPDX license tags to build system files 2026-01-08 15:08:03 -08:00
kernel-vfs-file_range.m4 build: add SPDX license tags to build system files 2026-01-08 15:08:03 -08:00
kernel-vfs-filemap_dirty_folio.m4 build: add SPDX license tags to build system files 2026-01-08 15:08:03 -08:00
kernel-vfs-fsync.m4 build: add SPDX license tags to build system files 2026-01-08 15:08:03 -08:00
kernel-vfs-iov_iter.m4 build: add SPDX license tags to build system files 2026-01-08 15:08:03 -08:00
kernel-vfs-migrate_folio.m4 build: add SPDX license tags to build system files 2026-01-08 15:08:03 -08:00
kernel-vfs-migratepage.m4 build: add SPDX license tags to build system files 2026-01-08 15:08:03 -08:00
kernel-vfs-read_folio.m4 build: add SPDX license tags to build system files 2026-01-08 15:08:03 -08:00
kernel-vfs-readpages.m4 build: add SPDX license tags to build system files 2026-01-08 15:08:03 -08:00
kernel-vfs-set_page_dirty.m4 build: add SPDX license tags to build system files 2026-01-08 15:08:03 -08:00
kernel-vfs-writepage.m4 build: add SPDX license tags to build system files 2026-01-08 15:08:03 -08:00
kernel-writeback.m4 build: add SPDX license tags to build system files 2026-01-08 15:08:03 -08:00
kernel-xattr-handler.m4 build: add SPDX license tags to build system files 2026-01-08 15:08:03 -08:00
kernel-zero_page.m4 build: add SPDX license tags to build system files 2026-01-08 15:08:03 -08:00
kernel.m4 Linux 7.0: explicitly set setlease handler to kernel implementation 2026-02-22 11:39:06 -08:00
lib-ld.m4 build: add SPDX license tags to build system files 2026-01-08 15:08:03 -08:00
lib-link.m4 build: add SPDX license tags to build system files 2026-01-08 15:08:03 -08:00
lib-prefix.m4 build: add SPDX license tags to build system files 2026-01-08 15:08:03 -08:00
mount-helper.m4 build: add SPDX license tags to build system files 2026-01-08 15:08:03 -08:00
nls.m4 build: add SPDX license tags to build system files 2026-01-08 15:08:03 -08:00
pkg.m4 build: add SPDX license tags to build system files 2026-01-08 15:08:03 -08:00
po.m4 build: add SPDX license tags to build system files 2026-01-08 15:08:03 -08:00
progtest.m4 build: add SPDX license tags to build system files 2026-01-08 15:08:03 -08:00
rpm.am build: add SPDX license tags to build system files 2026-01-08 15:08:03 -08:00
Rules.am build: add SPDX license tags to build system files 2026-01-08 15:08:03 -08:00
Shellcheck.am build: add SPDX license tags to build system files 2026-01-08 15:08:03 -08:00
Substfiles.am build: add SPDX license tags to build system files 2026-01-08 15:08:03 -08:00
tgz.am build: add SPDX license tags to build system files 2026-01-08 15:08:03 -08:00
toolchain-simd.m4 build: add SPDX license tags to build system files 2026-01-08 15:08:03 -08:00
user-aio.h.m4 build: add SPDX license tags to build system files 2026-01-08 15:08:03 -08:00
user-backtrace.m4 build: add SPDX license tags to build system files 2026-01-08 15:08:03 -08:00
user-clock_gettime.m4 build: add SPDX license tags to build system files 2026-01-08 15:08:03 -08:00
user-dracut.m4 build: add SPDX license tags to build system files 2026-01-08 15:08:03 -08:00
user-gettext.m4 build: add SPDX license tags to build system files 2026-01-08 15:08:03 -08:00
user-largefile.m4 build: add SPDX license tags to build system files 2026-01-08 15:08:03 -08:00
user-libaio.m4 build: add SPDX license tags to build system files 2026-01-08 15:08:03 -08:00
user-libatomic.m4 build: add SPDX license tags to build system files 2026-01-08 15:08:03 -08:00
user-libblkid.m4 build: add SPDX license tags to build system files 2026-01-08 15:08:03 -08:00
user-libcrypto.m4 build: add SPDX license tags to build system files 2026-01-08 15:08:03 -08:00
user-libexec.m4 build: add SPDX license tags to build system files 2026-01-08 15:08:03 -08:00
user-libfetch.m4 build: add SPDX license tags to build system files 2026-01-08 15:08:03 -08:00
user-libtirpc.m4 build: add SPDX license tags to build system files 2026-01-08 15:08:03 -08:00
user-libudev.m4 build: add SPDX license tags to build system files 2026-01-08 15:08:03 -08:00
user-libunwind.m4 build: add SPDX license tags to build system files 2026-01-08 15:08:03 -08:00
user-libuuid.m4 build: add SPDX license tags to build system files 2026-01-08 15:08:03 -08:00
user-makedev.m4 build: add SPDX license tags to build system files 2026-01-08 15:08:03 -08:00
user-pam.m4 build: add SPDX license tags to build system files 2026-01-08 15:08:03 -08:00
user-runstatedir.m4 build: add SPDX license tags to build system files 2026-01-08 15:08:03 -08:00
user-statx.m4 build: add SPDX license tags to build system files 2026-01-08 15:08:03 -08:00
user-systemd.m4 build: add SPDX license tags to build system files 2026-01-08 15:08:03 -08:00
user-sysvinit.m4 build: add SPDX license tags to build system files 2026-01-08 15:08:03 -08:00
user-udev.m4 build: add SPDX license tags to build system files 2026-01-08 15:08:03 -08:00
user-zlib.m4 build: add SPDX license tags to build system files 2026-01-08 15:08:03 -08:00
user.m4 build: add SPDX license tags to build system files 2026-01-08 15:08:03 -08:00
zfs-build.m4 build: get objtool from $kernelbuild 2026-02-23 09:39:51 -08:00
zfs-meta.m4 build: add SPDX license tags to build system files 2026-01-08 15:08:03 -08:00