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Matthew Wilcox (Oracle) bcd30d4cd9 buffer: fix unintended successful return 
If try_to_free_buffers() succeeded and then folio_alloc_buffers() failed,
grow_dev_folio() would return success.  This would be incorrect; memory
allocation failure is supposed to result in a failure.  It's a harmless
bug; the caller will simply go around the loop one more time and
grow_dev_folio() will correctly return a failure that time.  But it was an
unintended change and looks like a more serious bug than it is.

While I'm in here, improve the commentary about why we return success even
though we failed.

Link: https://lkml.kernel.org/r/20240101093848.2017115-1-willy@infradead.org
Fixes: 6d840a1877 ("buffer: return bool from grow_dev_folio()")
Signed-off-by: Matthew Wilcox (Oracle) <willy@infradead.org>
Reported-by: Ryusuke Konishi <konishi.ryusuke@gmail.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
2024-01-05 10:17:43 -08:00
..
9p
Merge tag '9p-for-6.7-rc1' of https://github.com/martinetd/linux
2023-11-04 09:20:04 -10:00
adfs
adfs: remove writepage implementation
2023-12-29 11:58:33 -08:00
affs
Merge tag 'vfs-6.7.fsid' of git://git.kernel.org/pub/scm/linux/kernel/git/vfs/vfs
2023-11-07 12:11:26 -08:00
afs
fs: convert error_remove_page to error_remove_folio
2023-12-10 16:51:42 -08:00
autofs
autofs: add: new_inode check in autofs_fill_super()
2023-11-20 14:56:36 +01:00
bcachefs
fs: convert error_remove_page to error_remove_folio
2023-12-10 16:51:42 -08:00
befs
Merge tag 'vfs-6.7.fsid' of git://git.kernel.org/pub/scm/linux/kernel/git/vfs/vfs
2023-11-07 12:11:26 -08:00
bfs
bfs: remove writepage implementation
2023-12-29 11:58:34 -08:00
btrfs
fs: convert error_remove_page to error_remove_folio
2023-12-10 16:51:42 -08:00
cachefiles
Merge tag 'mm-stable-2023-08-28-18-26' of git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm
2023-08-29 14:25:26 -07:00
ceph
fs: convert error_remove_page to error_remove_folio
2023-12-10 16:51:42 -08:00
coda
coda: convert to new timestamp accessors
2023-10-18 13:26:19 +02:00
configfs
configfs: convert to new timestamp accessors
2023-10-18 13:26:19 +02:00
cramfs
Merge tag 'vfs-6.7.ctime' of gitolite.kernel.org:pub/scm/linux/kernel/git/vfs/vfs
2023-10-30 09:47:13 -10:00
crypto
Merge tag 'v6.7-p1' of git://git.kernel.org/pub/scm/linux/kernel/git/herbert/crypto-2.6
2023-11-02 16:15:30 -10:00
debugfs
Merge tag 'wireless-2023-11-29' of git://git.kernel.org/pub/scm/linux/kernel/git/wireless/wireless
2023-11-29 19:43:34 -08:00
devpts
devpts: convert to new timestamp accessors
2023-10-18 13:26:20 +02:00
dlm
dlm: slow down filling up processing queue
2023-10-12 15:21:00 -05:00
ecryptfs
fs: Pass AT_GETATTR_NOSEC flag to getattr interface function
2023-11-18 14:54:07 +01:00
efivarfs
Merge tag 'vfs-6.7.fsid' of git://git.kernel.org/pub/scm/linux/kernel/git/vfs/vfs
2023-11-07 12:11:26 -08:00
efs
Merge tag 'vfs-6.7.fsid' of git://git.kernel.org/pub/scm/linux/kernel/git/vfs/vfs
2023-11-07 12:11:26 -08:00
erofs
MAINTAINERS: erofs: add EROFS webpage
2023-11-17 19:55:46 +08:00
exfat
exfat: fix ctime is not updated
2023-11-03 22:24:11 +09:00
exportfs
fs: fix build error with CONFIG_EXPORTFS=m or not defined
2023-10-28 16:16:19 +02:00
ext2
fs: convert error_remove_page to error_remove_folio
2023-12-10 16:51:42 -08:00
ext4
fs: convert block_write_full_page to block_write_full_folio
2023-12-29 11:58:35 -08:00
f2fs
fs: convert error_remove_page to error_remove_folio
2023-12-10 16:51:42 -08:00
fat
Merge tag 'vfs-6.7.fsid' of git://git.kernel.org/pub/scm/linux/kernel/git/vfs/vfs
2023-11-07 12:11:26 -08:00
freevxfs
Merge tag 'vfs-6.7.fsid' of git://git.kernel.org/pub/scm/linux/kernel/git/vfs/vfs
2023-11-07 12:11:26 -08:00
fscache
fscache: Use clear_and_wake_up_bit() in fscache_create_volume_work()
2023-01-30 12:51:54 +00:00
fuse
Merge tag 'vfs-6.7.fsid' of git://git.kernel.org/pub/scm/linux/kernel/git/vfs/vfs
2023-11-07 12:11:26 -08:00
gfs2
fs: remove the bh_end_io argument from __block_write_full_folio
2023-12-29 11:58:36 -08:00
hfs
hfs: really remove hfs_writepage
2023-12-29 11:58:34 -08:00
hfsplus
hfsplus: really remove hfsplus_writepage
2023-12-29 11:58:34 -08:00
hostfs
hostfs: convert to new timestamp accessors
2023-10-18 14:08:22 +02:00
hpfs
hpfs: convert to new timestamp accessors
2023-10-18 14:08:22 +02:00
hugetlbfs
fs: convert error_remove_page to error_remove_folio
2023-12-10 16:51:42 -08:00
iomap
mm: add folio_fill_tail() and use it in iomap
2023-12-10 16:51:36 -08:00
isofs
isofs: convert to new timestamp accessors
2023-10-18 14:08:22 +02:00
jbd2
Merge tag 'mm-stable-2023-11-01-14-33' of git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm
2023-11-02 19:38:47 -10:00
jffs2
Merge tag 'vfs-6.7.fsid' of git://git.kernel.org/pub/scm/linux/kernel/git/vfs/vfs
2023-11-07 12:11:26 -08:00
jfs
Merge tag 'vfs-6.7.fsid' of git://git.kernel.org/pub/scm/linux/kernel/git/vfs/vfs
2023-11-07 12:11:26 -08:00
kernfs
Merge tag 'driver-core-6.7-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/driver-core
2023-11-03 15:15:47 -10:00
lockd
SUNRPC: change how svc threads are asked to exit.
2023-10-16 12:44:04 -04:00
minix
minix: remove writepage implementation
2023-12-29 11:58:34 -08:00
netfs
netfs: Only call folio_start_fscache() one time for each folio
2023-09-18 12:03:46 -07:00
nfs
list_lru: allow explicit memcg and NUMA node selection
2023-12-12 10:57:01 -08:00
nfs_common
NFSv4.2: remove MODULE_LICENSE in non-modules
2023-04-13 13:13:52 -07:00
nfsd
list_lru: allow explicit memcg and NUMA node selection
2023-12-12 10:57:01 -08:00
nilfs2
nilfs2: prevent WARNING in nilfs_sufile_set_segment_usage()
2023-12-06 16:12:50 -08:00
nls
nls: Hide new NLS_UCS2_UTILS
2023-08-31 12:07:34 -05:00
notify
Merge tag 'vfs-6.7.fsid' of git://git.kernel.org/pub/scm/linux/kernel/git/vfs/vfs
2023-11-07 12:11:26 -08:00
ntfs
fs: convert block_write_full_page to block_write_full_folio
2023-12-29 11:58:35 -08:00
ntfs3
Merge tag 'vfs-6.7.fsid' of git://git.kernel.org/pub/scm/linux/kernel/git/vfs/vfs
2023-11-07 12:11:26 -08:00
ocfs2
fs: convert block_write_full_page to block_write_full_folio
2023-12-29 11:58:35 -08:00
omfs
omfs: convert to new timestamp accessors
2023-10-18 14:08:25 +02:00
openpromfs
openpromfs: convert to new timestamp accessors
2023-10-18 14:08:25 +02:00
orangefs
Merge tag 'vfs-6.7.ctime' of gitolite.kernel.org:pub/scm/linux/kernel/git/vfs/vfs
2023-10-30 09:47:13 -10:00
overlayfs
Merge tag 'vfs-6.7-rc3.fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/vfs/vfs
2023-11-24 09:45:40 -08:00
proc
mm: thp: introduce multi-size THP sysfs interface
2023-12-20 14:48:12 -08:00
pstore
Merge tag 'pstore-v6.7-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/kees/linux
2023-10-30 19:26:39 -10:00
qnx4
qnx4: convert to new timestamp accessors
2023-10-18 14:08:26 +02:00
qnx6
qnx6: convert to new timestamp accessors
2023-10-18 14:08:26 +02:00
quota
Merge tag 'mm-stable-2023-11-01-14-33' of git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm
2023-11-02 19:38:47 -10:00
ramfs
ramfs: convert to new timestamp accessors
2023-10-18 14:08:26 +02:00
reiserfs
Merge tag 'mm-stable-2023-11-01-14-33' of git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm
2023-11-02 19:38:47 -10:00
romfs
Merge tag 'vfs-6.7.ctime' of gitolite.kernel.org:pub/scm/linux/kernel/git/vfs/vfs
2023-10-30 09:47:13 -10:00
smb
smb: do not test the return value of folio_start_writeback()
2023-12-10 16:51:37 -08:00
squashfs
squashfs: squashfs_read_data need to check if the length is 0
2023-12-06 16:12:45 -08:00
sysfs
kernfs: sysfs: support custom llseek method for sysfs entries
2023-10-05 13:42:11 +02:00
sysv
sysv: remove writepage implementation
2023-12-29 11:58:35 -08:00
tracefs
eventfs: Make sure that parent->d_inode is locked in creating files/dirs
2023-11-22 18:37:33 -05:00
ubifs
Merge tag 'ubifs-for-linus-6.7-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/rw/ubifs
2023-11-05 08:28:32 -10:00
udf
Merge tag 'fs_for_v6.7-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/jack/linux-fs
2023-11-02 08:19:51 -10:00
ufs
ufs: remove writepage implementation
2023-12-29 11:58:35 -08:00
unicode
unicode: remove MODULE_LICENSE in non-modules
2023-04-13 13:13:54 -07:00
vboxsf
vboxsf: convert to new timestamp accessors
2023-10-18 14:08:29 +02:00
verity
fsverity: skip PKCS#7 parser when keyring is empty
2023-08-20 10:33:43 -07:00
xfs
list_lru: allow explicit memcg and NUMA node selection
2023-12-12 10:57:01 -08:00
zonefs
fs: convert error_remove_page to error_remove_folio
2023-12-10 16:51:42 -08:00
aio.c
aio: Annotate struct kioctx_table with __counted_by
2023-09-20 14:22:01 +02:00
anon_inodes.c
treewide: mark stuff as __ro_after_init
2023-10-18 14:43:23 -07:00
attr.c
fs: convert core infrastructure to new timestamp accessors
2023-10-18 13:26:15 +02:00
bad_inode.c
fs: convert core infrastructure to new timestamp accessors
2023-10-18 13:26:15 +02:00
binfmt_elf_fdpic.c
Merge tag 'execve-v6.7-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/kees/linux
2023-10-30 19:28:19 -10:00
binfmt_elf_test.c
…
binfmt_elf.c
binfmt_elf: Only report padzero() errors when PROT_WRITE
2023-10-03 19:48:44 -07:00
binfmt_flat.c
…
binfmt_misc.c
Merge tag 'execve-v6.7-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/kees/linux
2023-10-30 19:28:19 -10:00
binfmt_script.c
…
buffer.c
buffer: fix unintended successful return
2024-01-05 10:17:43 -08:00
char_dev.c
Merge tag 'mm-nonmm-stable-2023-11-02-14-08' of git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm
2023-11-02 20:53:31 -10:00
compat_binfmt_elf.c
…
coredump.c
Merge tag 'v6.5/vfs.misc' of git://git.kernel.org/pub/scm/linux/kernel/git/vfs/vfs
2023-06-26 09:50:21 -07:00
d_path.c
fs: d_path: include internal.h
2023-05-17 09:16:59 +02:00
dax.c
mm: convert DAX lock/unlock page to lock/unlock folio
2023-10-04 10:32:20 -07:00
dcache.c
list_lru: allow explicit memcg and NUMA node selection
2023-12-12 10:57:01 -08:00
direct-io.c
treewide: mark stuff as __ro_after_init
2023-10-18 14:43:23 -07:00
drop_caches.c
fs: drop_caches: draining pages before dropping caches
2023-08-18 10:12:11 -07:00
eventfd.c
eventfd: prevent underflow for eventfd semaphores
2023-07-11 11:41:34 +02:00
eventpoll.c
treewide: mark stuff as __ro_after_init
2023-10-18 14:43:23 -07:00
exec.c
mm/mremap: allow moves within the same VMA for stack moves
2023-10-04 10:32:20 -07:00
fcntl.c
treewide: mark stuff as __ro_after_init
2023-10-18 14:43:23 -07:00
fhandle.c
exportfs: add helpers to check if filesystem can encode/decode file handles
2023-10-24 17:57:45 +02:00
file_table.c
Merge tag 'mm-nonmm-stable-2023-11-02-14-08' of git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm
2023-11-02 20:53:31 -10:00
file.c
file, i915: fix file reference for mmap_singleton()
2023-10-25 22:17:04 +02:00
filesystems.c
…
fs_context.c
fs: factor out vfs_parse_monolithic_sep() helper
2023-10-12 18:53:36 +03:00
fs_parser.c
ext4: journal_path mount options should follow links
2022-12-01 10:46:54 -05:00
fs_pin.c
…
fs_struct.c
kill do_each_thread()
2023-08-21 13:46:25 -07:00
fs_types.c
…
fs-writeback.c
Merge tag 'vfs-6.7.misc' of gitolite.kernel.org:pub/scm/linux/kernel/git/vfs/vfs
2023-10-30 09:14:19 -10:00
fsopen.c
fsconfig: ensure that dirfd is set to aux
2023-09-22 14:09:06 +02:00
init.c
fs: add a new SB_I_NOUMASK flag
2023-10-19 11:02:47 +02:00
inode.c
list_lru: allow explicit memcg and NUMA node selection
2023-12-12 10:57:01 -08:00
internal.h
fs: store real path instead of fake path in backing file f_path
2023-10-19 11:03:15 +02:00
ioctl.c
Merge tag 'v6.6-vfs.super' of git://git.kernel.org/pub/scm/linux/kernel/git/vfs/vfs
2023-08-28 11:04:18 -07:00
Kconfig
fs/Kconfig: make hugetlbfs a menuconfig
2023-12-10 16:51:51 -08:00
Kconfig.binfmt
riscv: support the elf-fdpic binfmt loader
2023-08-23 14:17:43 -07:00
kernel_read_file.c
fs: Fix kernel-doc warnings
2023-08-19 12:12:12 +02:00
libfs.c
libfs: getdents() should return 0 after reaching EOD
2023-11-20 15:34:22 +01:00
locks.c
Merge tag 'mm-nonmm-stable-2023-11-02-14-08' of git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm
2023-11-02 20:53:31 -10:00
Makefile
bcachefs: Initial commit
2023-10-22 17:08:07 -04:00
mbcache.c
mbcache: dynamically allocate the mbcache shrinker
2023-10-04 10:32:25 -07:00
mnt_idmapping.c
fs: export mnt_idmap_get/mnt_idmap_put
2023-11-03 23:28:33 +01:00
mount.h
switch try_to_unlazy_next() to __legitimize_mnt()
2022-07-05 16:18:21 -04:00
mpage.c
fs: convert block_write_full_page to block_write_full_folio
2023-12-29 11:58:35 -08:00
namei.c
Merge tag 'vfs-6.7.misc' of gitolite.kernel.org:pub/scm/linux/kernel/git/vfs/vfs
2023-10-30 09:14:19 -10:00
namespace.c
Merge tag 'mm-nonmm-stable-2023-11-02-14-08' of git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm
2023-11-02 20:53:31 -10:00
nsfs.c
fs: convert core infrastructure to new timestamp accessors
2023-10-18 13:26:15 +02:00
open.c
fs: store real path instead of fake path in backing file f_path
2023-10-19 11:03:15 +02:00
pipe.c
Merge tag 'mm-nonmm-stable-2023-11-02-14-08' of git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm
2023-11-02 20:53:31 -10:00
pnode.c
fs: allow to mount beneath top mount
2023-05-19 04:30:22 +02:00
pnode.h
fs: allow to mount beneath top mount
2023-05-19 04:30:22 +02:00
posix_acl.c
fs: convert to ctime accessor functions
2023-07-13 10:28:04 +02:00
proc_namespace.c
tty, proc, kernfs, random: Use copy_splice_read()
2023-05-24 08:42:16 -06:00
read_write.c
fs: Fix one kernel-doc comment
2023-08-15 08:32:45 +02:00
readdir.c
vfs: get rid of old '->iterate' directory operation
2023-08-06 15:08:35 +02:00
remap_range.c
fs: use UB-safe check for signed addition overflow in remap_verify_area
2023-05-24 11:03:59 +02:00
select.c
…
seq_file.c
use less confusing names for iov_iter direction initializers
2022-11-25 13:01:55 -05:00
signalfd.c
…
splice.c
Merge tag 'mm-stable-2023-08-28-18-26' of git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm
2023-08-29 14:25:26 -07:00
stack.c
fs: convert core infrastructure to new timestamp accessors
2023-10-18 13:26:15 +02:00
stat.c
fs: Pass AT_GETATTR_NOSEC flag to getattr interface function
2023-11-18 14:54:07 +01:00
statfs.c
statfs: enforce statfs[64] structure initialization
2023-05-17 15:20:17 +02:00
super.c
Merge tag 'ovl-update-6.7' of git://git.kernel.org/pub/scm/linux/kernel/git/overlayfs/vfs
2023-11-07 11:46:31 -08:00
sync.c
…
sysctls.c
sysctl: Refactor base paths registrations
2023-05-23 21:43:26 -07:00
timerfd.c
…
userfaultfd.c
userfaultfd: UFFDIO_MOVE uABI
2023-12-29 11:58:24 -08:00
utimes.c
Merge tag 'fs.idmapped.v6.3' of git://git.kernel.org/pub/scm/linux/kernel/git/vfs/idmapping
2023-02-20 11:53:11 -08:00
xattr.c
xattr: make the xattr array itself const
2023-10-09 16:24:16 +02:00