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Baokun Li 993bf0f4c3 ext4: avoid dividing by 0 in mb_update_avg_fragment_size() when block bitmap corrupt 
Determine if bb_fragments is 0 instead of determining bb_free to eliminate
the risk of dividing by zero when the block bitmap is corrupted.

Signed-off-by: Baokun Li <libaokun1@huawei.com>
Reviewed-by: Jan Kara <jack@suse.cz>
Link: https://lore.kernel.org/r/20240104142040.2835097-6-libaokun1@huawei.com
Signed-off-by: Theodore Ts'o <tytso@mit.edu>
2024-01-18 10:50:24 -05:00
..
9p
Bunch of small fixes:
2023-11-04 09:20:04 -10:00
adfs
adfs: remove writepage implementation
2023-12-29 11:58:33 -08:00
affs
vfs-6.7.fsid
2023-11-07 12:11:26 -08:00
afs
hardening updates for v6.8-rc1
2024-01-10 11:03:52 -08:00
autofs
autofs: add: new_inode check in autofs_fill_super()
2023-11-20 14:56:36 +01:00
bcachefs
Many singleton patches against the MM code. The patch series which
2024-01-09 11:18:47 -08:00
befs
vfs-6.7.fsid
2023-11-07 12:11:26 -08:00
bfs
bfs: remove writepage implementation
2023-12-29 11:58:34 -08:00
btrfs
for-6.8-tag
2024-01-10 09:27:40 -08:00
cachefiles
vfs-6.8.cachefiles
2024-01-08 11:26:50 -08:00
ceph
Many singleton patches against the MM code. The patch series which
2024-01-09 11:18:47 -08:00
coda
fs: move file_start_write() into vfs_iter_write()
2023-11-24 10:09:51 +01:00
configfs
…
cramfs
vfs-6.7.ctime
2023-10-30 09:47:13 -10:00
crypto
fscrypt: document that CephFS supports fscrypt now
2023-12-26 22:55:42 -06:00
debugfs
Merge branches 'acpi-pm', 'acpi-video', 'acpi-apei' and 'acpi-extlog'
2024-01-04 13:19:40 +01:00
devpts
…
dlm
dlm: update format header reflect current format
2023-12-20 15:36:48 -06:00
ecryptfs
unicode updates
2024-01-10 16:06:58 -08:00
efivarfs
efivarfs: automatically update super block flag
2023-12-11 11:19:18 +01:00
efs
vfs-6.7.fsid
2023-11-07 12:11:26 -08:00
erofs
erofs: make erofs_{err,info}() support NULL sb parameter
2024-01-10 19:59:39 +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
ext4: avoid dividing by 0 in mb_update_avg_fragment_size() when block bitmap corrupt
2024-01-18 10:50:24 -05:00
f2fs
fscrypt updates for 6.8
2024-01-10 10:24:49 -08:00
fat
vfs-6.7.fsid
2023-11-07 12:11:26 -08:00
freevxfs
freevxfs: lookup: fix function params kernel-doc
2023-12-20 15:02:58 -08:00
fscache
…
fuse
vfs-6.8.rw
2024-01-08 11:11:51 -08:00
gfs2
dlm for 6.8
2024-01-10 10:17:23 -08:00
hfs
hfs: really remove hfs_writepage
2023-12-29 11:58:34 -08:00
hfsplus
Many singleton patches against the MM code. The patch series which
2024-01-09 11:18:47 -08:00
hostfs
…
hpfs
…
hugetlbfs
Many singleton patches against the MM code. The patch series which
2024-01-09 11:18:47 -08:00
iomap
mm: add folio_fill_tail() and use it in iomap
2023-12-10 16:51:36 -08:00
isofs
…
jbd2
jbd2: abort journal when detecting metadata writeback error of fs dev
2024-01-04 23:42:21 -05:00
jffs2
jffs2: mark __jffs2_dbg_superblock_counts() static
2023-12-10 17:21:43 -08:00
jfs
jfs: Add missing set_freezable() for freezable kthread
2024-01-02 11:06:52 -06:00
kernfs
Driver core changes for 6.7-rc1
2023-11-03 15:15:47 -10:00
lockd
SUNRPC: discard sv_refcnt, and svc_get/svc_put
2024-01-07 17:54:33 -05:00
minix
minix: remove writepage implementation
2023-12-29 11:58:34 -08:00
netfs
…
nfs
NFSD 6.8 Release Notes
2024-01-10 10:20:08 -08:00
nfs_common
…
nfsd
NFSD 6.8 Release Notes
2024-01-10 10:20:08 -08:00
nilfs2
Quite a lot of kexec work this time around. Many singleton patches in
2024-01-09 11:46:20 -08:00
nls
…
notify
fanotify: allow "weak" fsid when watching a single filesystem
2023-12-01 10:55:21 +01:00
ntfs
Many singleton patches against the MM code. The patch series which
2024-01-09 11:18:47 -08:00
ntfs3
vfs-6.7.fsid
2023-11-07 12:11:26 -08:00
ocfs2
dlm for 6.8
2024-01-10 10:17:23 -08:00
omfs
…
openpromfs
…
orangefs
vfs-6.7.ctime
2023-10-30 09:47:13 -10:00
overlayfs
overlayfs updates for 6.8
2024-01-10 10:48:22 -08:00
proc
lsm/stable-6.8 PR 20240105
2024-01-09 12:57:46 -08:00
pstore
pstore: inode: Use cleanup.h for struct pstore_private
2023-12-08 14:15:44 -08:00
qnx4
qnx4: Use get_directory_fname() in qnx4_match()
2023-12-13 11:19:18 -08:00
qnx6
…
quota
quota: convert dquot_claim_space_nodirty() to return void
2023-12-11 13:26:06 +01:00
ramfs
mm, treewide: rename MAX_ORDER to MAX_PAGE_ORDER
2024-01-08 15:27:15 -08:00
reiserfs
reiserfs: fix uninit-value in comp_keys
2023-12-28 11:56:52 +01:00
romfs
vfs-6.7.ctime
2023-10-30 09:47:13 -10:00
smb
Many singleton patches against the MM code. The patch series which
2024-01-09 11:18:47 -08:00
squashfs
Squashfs: fix variable overflow triggered by sysbot
2023-12-10 17:21:26 -08:00
sysfs
…
sysv
sysv: remove writepage implementation
2023-12-29 11:58:35 -08:00
tracefs
eventfs: Fix bitwise fields for "is_events"
2024-01-02 15:20:44 -05:00
ubifs
This pull request contains updates for UBI and UBIFS
2023-11-05 08:28:32 -10:00
udf
\n
2023-11-02 08:19:51 -10:00
ufs
Many singleton patches against the MM code. The patch series which
2024-01-09 11:18:47 -08:00
unicode
…
vboxsf
…
verity
…
xfs
New code for 6.8:
2024-01-10 08:45:22 -08:00
zonefs
fs: convert error_remove_page to error_remove_folio
2023-12-10 16:51:42 -08:00
aio.c
vfs-6.8.iov_iter
2024-01-08 11:43:04 -08:00
anon_inodes.c
…
attr.c
fs: fix doc comment typo fs tree wide
2023-12-21 13:17:54 +01:00
backing-file.c
fs: factor out backing_file_mmap() helper
2023-12-23 16:35:09 +02:00
bad_inode.c
…
binfmt_elf_fdpic.c
execve updates for v6.7-rc1
2023-10-30 19:28:19 -10:00
binfmt_elf_test.c
…
binfmt_elf.c
…
binfmt_flat.c
…
binfmt_misc.c
execve updates for v6.7-rc1
2023-10-30 19:28:19 -10:00
binfmt_script.c
…
buffer.c
Many singleton patches against the MM code. The patch series which
2024-01-09 11:18:47 -08:00
char_dev.c
As usual, lots of singleton and doubleton patches all over the tree and
2023-11-02 20:53:31 -10:00
compat_binfmt_elf.c
…
coredump.c
…
d_path.c
…
dax.c
fs : Fix warning using plain integer as NULL
2023-11-18 15:00:01 +01:00
dcache.c
list_lru: allow explicit memcg and NUMA node selection
2023-12-12 10:57:01 -08:00
direct-io.c
fs : Fix warning using plain integer as NULL
2023-11-18 15:00:01 +01:00
drop_caches.c
…
eventfd.c
eventfd: Remove usage of the deprecated ida_simple_xx() API
2023-12-12 14:24:55 +01:00
eventpoll.c
…
exec.c
introduce for_other_threads(p, t)
2023-12-10 17:21:25 -08:00
fcntl.c
…
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
fs: replace f_rcuhead with f_task_work
2023-12-12 14:24:13 +01:00
file.c
file: remove __receive_fd()
2023-12-12 14:24:14 +01:00
filesystems.c
…
fs_context.c
…
fs_parser.c
…
fs_pin.c
…
fs_struct.c
…
fs_types.c
…
fs-writeback.c
vfs-6.7.misc
2023-10-30 09:14:19 -10:00
fsopen.c
…
init.c
…
inode.c
Many singleton patches against the MM code. The patch series which
2024-01-09 11:18:47 -08:00
internal.h
vfs-6.8.rw
2024-01-08 11:11:51 -08:00
ioctl.c
lsm: new security_file_ioctl_compat() hook
2023-12-24 15:48:03 -05:00
Kconfig
Many singleton patches against the MM code. The patch series which
2024-01-09 11:18:47 -08:00
Kconfig.binfmt
…
kernel_read_file.c
…
libfs.c
libfs: getdents() should return 0 after reaching EOD
2023-11-20 15:34:22 +01:00
locks.c
As usual, lots of singleton and doubleton patches all over the tree and
2023-11-02 20:53:31 -10:00
Makefile
fs: prepare for stackable filesystems backing file helpers
2023-12-23 16:35:08 +02:00
mbcache.c
…
mnt_idmapping.c
mnt_idmapping: decouple from namespaces
2023-11-28 14:08:47 +01:00
mount.h
mounts: keep list of mounts in an rbtree
2023-11-18 14:56:16 +01:00
mpage.c
fs: convert block_write_full_page to block_write_full_folio
2023-12-29 11:58:35 -08:00
namei.c
Merge branch 'vfs.file'
2023-12-21 13:21:52 +01:00
namespace.c
for-6.8-tag
2024-01-10 09:27:40 -08:00
nsfs.c
…
open.c
vfs-6.8.rw
2024-01-08 11:11:51 -08:00
pipe.c
pipe: wakeup wr_wait after setting max_usage
2023-12-12 14:24:54 +01:00
pnode.c
mounts: keep list of mounts in an rbtree
2023-11-18 14:56:16 +01:00
pnode.h
…
posix_acl.c
fs: fix doc comment typo fs tree wide
2023-12-21 13:17:54 +01:00
proc_namespace.c
namespace: extract show_path() helper
2023-11-18 14:56:16 +01:00
read_write.c
fsnotify: optionally pass access range in file permission hooks
2023-12-12 16:20:02 +01:00
readdir.c
fsnotify: optionally pass access range in file permission hooks
2023-12-12 16:20:02 +01:00
remap_range.c
fsnotify: optionally pass access range in file permission hooks
2023-12-12 16:20:02 +01:00
select.c
…
seq_file.c
…
signalfd.c
…
splice.c
fs: use splice_copy_file_range() inline helper
2023-12-12 16:20:02 +01:00
stack.c
…
stat.c
vfs-6.8.mount
2024-01-08 10:57:34 -08:00
statfs.c
…
super.c
fscrypt updates for 6.8
2024-01-10 10:24:49 -08:00
sync.c
…
sysctls.c
…
timerfd.c
…
userfaultfd.c
userfaultfd: UFFDIO_MOVE uABI
2023-12-29 11:58:24 -08:00
utimes.c
…
xattr.c
…