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Rob Norris 0cf14bf4b5 Linux 6.12: PG_error flag was removed 
torvalds/linux@09022bc196 removes the flag, and the corresponding
SetPageError() and ClearPageError() macros, with no replacement offered.

Going back through the upstream history, use of this flag has been
gradually removed over the last year as part of the long tail of
converting everything to folios. Interesting tidbit comments from
torvalds/linux@29e9412b25 and torvalds/linux@420e05d0de suggest that
this flag has not been used meaningfully since page writeback failures
started being recorded in errseq_t instead (the whole "fsyncgate" thing,
~2017, around torvalds/linux@8ed1e46aaf).

Given that, it's possible that since perhaps Linux 4.13 we haven't been
getting anything by setting the flag. I don't know if that's true and/or
if there's something we should be doing instead, but my gut feel is that
its probably fine we only use the page cache as a proxy to allow mmap()
to work, rather than backing IO with it.

As such, I'm expecting that removing this will do no harm, but I'm
leaving it in for older kernels to maintain status quo, and if there is
an overall better way, that is left for a future change.

Sponsored-by: https://despairlabs.com/sponsor/
Reviewed-by: Brian Behlendorf <behlendorf1@llnl.gov>
Signed-off-by: Rob Norris <robn@despairlabs.com>
Closes #16582
2024-10-01 13:54:05 -07:00
..
.gitignore Prepare SPL repo to merge with ZFS repo 2018-05-29 14:51:39 -07:00
always-arch.m4 Add ARM architecture to OpenZFS buildsystem 2023-03-02 13:51:50 -08:00
always-compiler-options.m4 Fix Clang 15 compilation errors 2022-11-30 13:46:26 -08:00
always-cppcheck.m4 autoconf: use include directives instead of recursing down lib 2022-05-10 10:18:11 -07:00
always-parallel.m4 config: check for parallel(1), use it for cstyle 2022-01-06 12:46:42 -08:00
always-python.m4 Removed Python 2 and Python 3.5- support 2022-01-13 09:51:12 -07:00
always-pyzfs.m4 Python 3.12 deprecated python3-distutils 2024-04-25 13:40:09 -07:00
always-sed.m4 Add compatibility for busybox mktemp 2020-12-03 10:01:16 -08:00
always-shellcheck.m4 Turn checkbashisms into a make target 2021-06-01 11:38:54 -07:00
always-system.m4 autoconf: use include directives instead of recursing down lib 2022-05-10 10:18:11 -07:00
ax_code_coverage.m4 Updated the lz4 decompressor 2022-01-07 10:36:49 -08:00
ax_compare_version.m4 config/kernel: enforce maximum kernel version, with escape hatch 2024-09-23 10:44:49 -07:00
ax_count_cpus.m4 cppcheck: integrete cppcheck 2021-01-26 16:12:26 -08:00
ax_python_devel.m4 Python 3.12 deprecated python3-distutils 2024-04-25 13:40:09 -07:00
ax_restore_flags.m4 config: better libtirpc detection 2019-03-02 16:19:05 -08:00
ax_save_flags.m4 config: better libtirpc detection 2019-03-02 16:19:05 -08:00
config.rpath Add config.rpath for AM_GNU_GETTEXT 2020-07-10 14:26:12 -07:00
CppCheck.am cppcheck: explicitly exclude kernel code from userspace checks 2022-05-10 10:20:55 -07:00
deb.am Fix shebang for helper script of deb-utils 2023-01-05 10:50:00 -08:00
find_system_library.m4 find_system_library: fix var cleanup when library not found 2024-05-01 10:51:14 -07:00
gettext.m4 config: libintl/libiconv for gettext() detection 2019-04-19 12:09:29 -07:00
host-cpu-c-abi.m4 config: libintl/libiconv for gettext() detection 2019-04-19 12:09:29 -07:00
iconv.m4 Clarify comments in config/*.m4, vdev_geom.c, zfs_allow_*.ksh 2020-06-22 09:46:37 -07:00
kernel-access-ok-type.m4 Perform KABI checks in parallel 2019-10-01 12:50:34 -07:00
kernel-acl.m4 config: remove HAVE_ACL_REFCOUNT 2024-09-18 11:23:50 -07:00
kernel-add-disk.m4 Fix clang 13 compilation errors 2022-06-15 14:20:28 -07:00
kernel-assign_str.m4 Linux 6.10 compat: Fix tracepoints definitions 2024-09-17 13:38:02 -07:00
kernel-automount.m4 Linux 6.8 compat: make test functions static 2024-01-29 11:36:07 -08:00
kernel-bio_max_segs.m4 Linux 5.12 update: bio_max_segs() replaces BIO_MAX_PAGES 2021-03-19 22:33:42 -07:00
kernel-bio.m4 config: remove HAVE_BIO_SET_DEV 2024-09-18 11:23:51 -07:00
kernel-blk-queue.m4 config: remove HAVE_BLK_MQ 2024-09-18 11:23:50 -07:00
kernel-blkdev.m4 config: remove HAVE_MODE_LOOKUP_BDEV 2024-09-18 11:23:51 -07:00
kernel-block-device-operations.m4 Linux 6.8 compat: make test functions static 2024-01-29 11:36:07 -08:00
kernel-commit-metadata.m4 Linux 6.8 compat: make test functions static 2024-01-29 11:36:07 -08:00
kernel-config-defined.m4 config: remove checks with unused defines 2024-09-18 11:23:35 -07:00
kernel-copy-from-user-inatomic.m4 autoconf: Fail when __copy_from_user_inatomic is a non-GPL symbol 2022-05-11 10:32:51 -07:00
kernel-cpu_has_feature.m4 Workaround for Linux PowerPC GPL-only cpu_has_feature() 2023-03-10 09:35:00 -08:00
kernel-declare-event-class.m4 Perform KABI checks in parallel 2019-10-01 12:50:34 -07:00
kernel-dentry-operations.m4 config: remove test for unused s_d_op 2024-09-18 11:23:51 -07:00
kernel-discard-granularity.m4 Linux compat: Minimum kernel version 3.10 2019-11-12 08:59:06 -08:00
kernel-file.m4 Linux 6.12: f_version removed from struct file 2024-10-01 13:54:00 -07:00
kernel-filemap-splice-read.m4 Linux 6.5 compat: Use copy_splice_read instead of filemap_splice_read 2023-08-08 15:42:32 -07:00
kernel-flush_dcache_page.m4 compact: workaround for GPL-only symbols on riscv from Linux 6.2 2023-12-06 12:37:50 -08:00
kernel-fmode-t.m4 Linux compat: Minimum kernel version 3.10 2019-11-12 08:59:06 -08:00
kernel-follow-down-one.m4 Linux compat: Minimum kernel version 3.10 2019-11-12 08:59:06 -08:00
kernel-fpu.m4 Linux 6.2 compat: add check for kernel_neon_* availability 2024-01-08 16:05:24 -08:00
kernel-fst-mount.m4 Linux compat: Minimum kernel version 3.10 2019-11-12 08:59:06 -08:00
kernel-fsync-bdev.m4 Linux 6.6 compat: fsync_bdev() has been removed in favor of sync_blockdev() 2023-09-21 18:38:40 -07:00
kernel-generic_fadvise.m4 Add Linux posix_fadvise support 2022-09-08 10:29:41 -07:00
kernel-generic_fillattr.m4 config: fix various bits of missing output 2024-09-18 11:23:51 -07:00
kernel-generic_io_acct.m4 config: remove HAVE_GENERIC_IO_ACCT_3ARG 2024-09-18 11:23:51 -07:00
kernel-genhd-flags.m4 config: rework ZFS_GENHD_FL_* 2024-09-18 11:23:51 -07:00
kernel-get-disk-ro.m4 libtpool: -Wno-clobbered 2022-02-18 09:34:25 -08:00
kernel-iattr-vfsid.m4 Support idmapped mount in user namespace 2022-11-08 10:28:56 -08:00
kernel-idmap_mnt_api.m4 Linux 6.8 compat: handle mnt_idmap user_namespace change 2024-01-29 11:36:07 -08:00
kernel-inode-create.m4 Linux 6.8 compat: make test functions static 2024-01-29 11:36:07 -08:00
kernel-inode-getattr.m4 config: remove HAVE_VFSMOUNT_IOPS_GETATTR 2024-09-18 11:23:51 -07:00
kernel-inode-lookup.m4 Linux 6.8 compat: make test functions static 2024-01-29 11:36:07 -08:00
kernel-inode-permission.m4 config: fix various bits of missing output 2024-09-18 11:23:51 -07:00
kernel-inode-setattr.m4 config: remove checks with unused defines 2024-09-18 11:23:35 -07:00
kernel-inode-times.m4 config: remove HAVE_INODE_TIMESPEC64_TIMES 2024-09-18 11:23:50 -07:00
kernel-insert-inode-locked.m4 Linux compat: Minimum kernel version 3.10 2019-11-12 08:59:06 -08:00
kernel-is_owner_or_cap.m4 Linux 6.3 compat: idmapped mount API changes 2023-04-10 14:15:36 -07:00
kernel-kmap-atomic-args.m4 Linux compat: Minimum kernel version 3.10 2019-11-12 08:59:06 -08:00
kernel-kmap-local-page.m4 Use kmap_local_page instead of kmap_atomic (#16329) 2024-07-16 17:27:29 -07:00
kernel-kmem.m4 config: remove HAVE_KVMALLOC 2024-09-18 11:23:50 -07:00
kernel-kthread.m4 Linux 6.12: support 3arg dequeue_signal() without task param 2024-10-01 13:53:50 -07:00
kernel-kuid-helpers.m4 Linux compat: Minimum kernel version 3.10 2019-11-12 08:59:06 -08:00
kernel-kuidgid.m4 Linux compat: Minimum kernel version 3.10 2019-11-12 08:59:06 -08:00
kernel-make-request-fn.m4 config: remove checks with unused defines 2024-09-18 11:23:35 -07:00
kernel-misc-minor.m4 Perform KABI checks in parallel 2019-10-01 12:50:34 -07:00
kernel-mkdir.m4 config: fix various bits of missing output 2024-09-18 11:23:51 -07:00
kernel-mknod.m4 Linux 6.8 compat: make test functions static 2024-01-29 11:36:07 -08:00
kernel-mm-page-flags.m4 Linux 6.12: PG_error flag was removed 2024-10-01 13:54:05 -07:00
kernel-mm-pagemap.m4 config: fix page_mapping test 2024-09-18 11:23:51 -07:00
kernel-objtool.m4 Linux 5.10 compat: frame.h renamed objtool.h 2020-11-02 22:01:10 +00:00
kernel-pagemap-folio_wait_bit.m4 autoconf: AC_MSG_CHECKING consistency 2022-06-01 09:59:37 -07:00
kernel-pde-data.m4 Linux 5.17 compat: PDE_DATA() renamed to pde_data() 2022-01-25 12:53:00 -08:00
kernel-percpu.m4 config: remove HAVE_PERCPU_COUNTER_ADD_BATCH 2024-09-18 11:23:50 -07:00
kernel-proc-operations.m4 Linux 6.8 compat: make test functions static 2024-01-29 11:36:07 -08:00
kernel-readpages.m4 autoconf: AC_MSG_CHECKING consistency 2022-06-01 09:59:37 -07:00
kernel-reclaim_state.m4 Linux 6.4 compat: reclaimed_slab renamed to reclaimed 2023-05-24 12:23:42 -07:00
kernel-register_sysctl_table.m4 Linux 6.11: avoid passing "end" sentinel to register_sysctl() 2024-08-13 17:47:22 -07:00
kernel-rename.m4 config: fix various bits of missing output 2024-09-18 11:23:51 -07:00
kernel-revalidate-disk-size.m4 Linux 5.18 compat: replace genhd.h with blkdev.h includes 2022-03-28 09:52:55 -07:00
kernel-sched.m4 config: remove HAVE_SCHED_SIGNAL_HEADER 2024-09-18 11:23:50 -07:00
kernel-security-inode-init.m4 Linux compat: Minimum kernel version 3.10 2019-11-12 08:59:06 -08:00
kernel-set-nlink.m4 Linux compat: Minimum kernel version 3.10 2019-11-12 08:59:06 -08:00
kernel-setattr-prepare.m4 config: fix various bits of missing output 2024-09-18 11:23:51 -07:00
kernel-sget-args.m4 Linux compat: Minimum kernel version 3.10 2019-11-12 08:59:06 -08:00
kernel-show-options.m4 Linux 6.8 compat: make test functions static 2024-01-29 11:36:07 -08:00
kernel-shrink.m4 config: fix various bits of missing output 2024-09-18 11:23:51 -07:00
kernel-siginfo.m4 Add SIGSTOP and SIGTSTP handling to issig 2021-04-15 13:34:35 -07:00
kernel-stdarg.m4 Linux 5.15 compat: standalone <linux/stdarg.h> 2021-09-08 12:59:43 -07:00
kernel-strlcpy.m4 config: remove HAVE_KERNEL_STRSCPY 2024-09-18 11:23:49 -07:00
kernel-symlink.m4 config: fix various bits of missing output 2024-09-18 11:23:51 -07:00
kernel-sysfs.m4 autoconf: AC_MSG_CHECKING consistency 2022-06-01 09:59:37 -07:00
kernel-tmpfile.m4 config: remove HAVE_TMPFILE 2024-09-18 11:23:50 -07:00
kernel-totalhigh_pages.m4 Perform KABI checks in parallel 2019-10-01 12:50:34 -07:00
kernel-totalram-pages-func.m4 Perform KABI checks in parallel 2019-10-01 12:50:34 -07:00
kernel-truncate-setsize.m4 Linux compat: Minimum kernel version 3.10 2019-11-12 08:59:06 -08:00
kernel-types.m4 Linux 6.7 compat: detect if kernel defines intptr_t 2024-05-24 18:54:24 -07:00
kernel-userns-capabilities.m4 config: remove HAVE_HAS_CAPABILITY 2024-09-18 11:23:51 -07:00
kernel-usleep_range.m4 Linux compat: Minimum kernel version 3.10 2019-11-12 08:59:06 -08:00
kernel-vfs-direct_IO.m4 config: remove HAVE_VFS_DIRECT_IO_ITER_RW_OFFSET 2024-09-18 11:23:50 -07:00
kernel-vfs-file_range.m4 config: remove HAVE_VFS_COPY_FILE_RANGE 2024-09-18 11:23:50 -07:00
kernel-vfs-filemap_dirty_folio.m4 autoconf: AC_MSG_CHECKING consistency 2022-06-01 09:59:37 -07:00
kernel-vfs-fsync.m4 Linux compat: Minimum kernel version 3.10 2019-11-12 08:59:06 -08:00
kernel-vfs-invalidate_folio.m4 Avoid BUG in migrate_folio_extra 2024-09-26 08:57:09 -07:00
kernel-vfs-iov_iter.m4 config: remove checks with unused defines 2024-09-18 11:23:35 -07:00
kernel-vfs-read_folio.m4 autoconf: AC_MSG_CHECKING consistency 2022-06-01 09:59:37 -07:00
kernel-vfs-release_folio.m4 Avoid BUG in migrate_folio_extra 2024-09-26 08:57:09 -07:00
kernel-vfs-set_page_dirty.m4 autoconf: AC_MSG_CHECKING consistency 2022-06-01 09:59:37 -07:00
kernel-writepage_t.m4 Linux 6.8 compat: make test functions static 2024-01-29 11:36:07 -08:00
kernel-xattr-handler.m4 config: fix various bits of missing output 2024-09-18 11:23:51 -07:00
kernel-zero_page.m4 Adding ZERO_PAGE detection 2022-03-14 12:37:39 -07:00
kernel.m4 Linux 6.12: PG_error flag was removed 2024-10-01 13:54:05 -07:00
lib-ld.m4 config: libintl/libiconv for gettext() detection 2019-04-19 12:09:29 -07:00
lib-link.m4 Clarify comments in config/*.m4, vdev_geom.c, zfs_allow_*.ksh 2020-06-22 09:46:37 -07:00
lib-prefix.m4 Clarify comments in config/*.m4, vdev_geom.c, zfs_allow_*.ksh 2020-06-22 09:46:37 -07:00
mount-helper.m4 Autoconf 2.70 compatibility 2021-01-02 16:55:55 -08:00
nls.m4 config: libintl/libiconv for gettext() detection 2019-04-19 12:09:29 -07:00
pkg.m4 Fix typos in config/ 2019-08-30 09:40:30 -07:00
po.m4 config: libintl/libiconv for gettext() detection 2019-04-19 12:09:29 -07:00
progtest.m4 config: libintl/libiconv for gettext() detection 2019-04-19 12:09:29 -07:00
rpm.am Make sure all necessary RPM path macros are defined 2024-01-16 13:32:59 -08:00
Rules.am build: rename FORCEDEBUG_CPPFLAGS to LIBZPOOL_CPPFLAGS 2024-08-27 12:53:27 -07:00
Shellcheck.am shellcheck: disable "unreachable command" check [SC2317] 2023-07-21 11:53:06 -07:00
Substfiles.am config/Substfiles.am: restrict to the dedicated list. 2024-04-09 16:34:58 -07:00
tgz.am Make RPM_DEFINE_KMOD conditional on CONFIG_KERNEL 2020-07-14 17:32:21 -07:00
toolchain-simd.m4 Linux 5.16 compat: don't use XSTATE_XSAVE to save FPU state 2022-02-09 12:50:10 -08:00
user-aio.h.m4 config: user: check for <aio.h> 2022-03-28 10:24:22 -07:00
user-backtrace.m4 libspl/assert: dump backtrace in assert 2024-05-01 10:52:00 -07:00
user-clock_gettime.m4 Clean up lib dependencies 2020-07-10 14:26:00 -07:00
user-dracut.m4 Autoconf 2.70 compatibility 2021-01-02 16:55:55 -08:00
user-gettext.m4 Add config.rpath for AM_GNU_GETTEXT 2020-07-10 14:26:12 -07:00
user-libaio.m4 config: user: check for <aio.h> 2022-03-28 10:24:22 -07:00
user-libatomic.m4 config/libatomic: require -latomic iff atomic.c doesn't link w/o it 2021-07-13 13:50:48 -07:00
user-libblkid.m4 Fix up FIND_SYSTEM_LIBRARY to work with cross-compiling 2020-07-10 14:26:40 -07:00
user-libcrypto.m4 Fix up FIND_SYSTEM_LIBRARY to work with cross-compiling 2020-07-10 14:26:40 -07:00
user-libexec.m4 Autoconf 2.70 compatibility 2021-01-02 16:55:55 -08:00
user-libfetch.m4 libfetch: unquote @LIBFETCH_SONAME@ subst 2022-01-06 11:26:40 -08:00
user-libtirpc.m4 Fix up FIND_SYSTEM_LIBRARY to work with cross-compiling 2020-07-10 14:26:40 -07:00
user-libudev.m4 Fix up FIND_SYSTEM_LIBRARY to work with cross-compiling 2020-07-10 14:26:40 -07:00
user-libunwind.m4 libspl/assert: use libunwind for backtrace when available 2024-05-01 10:52:05 -07:00
user-libuuid.m4 Fix up FIND_SYSTEM_LIBRARY to work with cross-compiling 2020-07-10 14:26:40 -07:00
user-makedev.m4 Autoconf 2.70 compatibility 2021-01-02 16:55:55 -08:00
user-pam.m4 Use correct prefix for share/pam-configs 2020-07-30 09:09:46 -07:00
user-runstatedir.m4
user-systemd.m4 autoconf: use include directives instead of recursing down etc 2022-05-10 10:19:58 -07:00
user-sysvinit.m4 autoconf: use include directives instead of recursing down etc 2022-05-10 10:19:58 -07:00
user-udev.m4 Autoconf 2.70 compatibility 2021-01-02 16:55:55 -08:00
user-zlib.m4 Fix up FIND_SYSTEM_LIBRARY to work with cross-compiling 2020-07-10 14:26:40 -07:00
user.m4 libspl/assert: use libunwind for backtrace when available 2024-05-01 10:52:05 -07:00
zfs-build.m4 Add building support for Artix Linux (#16265) 2024-07-15 16:58:00 -07:00
zfs-meta.m4 Remove basename(1). Clean up/shorten some coreutils pipelines 2021-11-11 13:27:37 -07:00