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Darrick J. Wong bbc256bf90 xfs: fix overfilling of reserve pool 
[ Upstream commit 82be38bcf8a2e056b4c99ce79a3827fa743df6ec ]

Due to cycling of m_sb_lock, it's possible for multiple callers of
xfs_reserve_blocks to race at changing the pool size, subtracting blocks
from fdblocks, and actually putting it in the pool.  The result of all
this is that we can overfill the reserve pool to hilarious levels.

xfs_mod_fdblocks, when called with a positive value, already knows how
to take freed blocks and either fill the reserve until it's full, or put
them in fdblocks.  Use that instead of setting m_resblks_avail directly.

Signed-off-by: Darrick J. Wong <djwong@kernel.org>
Reviewed-by: Dave Chinner <dchinner@redhat.com>
Signed-off-by: Leah Rumancik <leah.rumancik@gmail.com>
Acked-by: Darrick J. Wong <djwong@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2022-08-25 11:40:48 +02:00
..
9p
9p: fix a bunch of checkpatch warnings
2022-08-17 14:24:07 +02:00
adfs
…
affs
…
afs
afs: Fix dynamic root getattr
2022-06-29 09:03:25 +02:00
autofs
autofs: fix wait name hash calculation in autofs_wait()
2021-10-20 21:09:02 -04:00
befs
isystem: ship and use stdarg.h
2021-08-19 09:02:55 +09:00
bfs
…
btrfs
btrfs: fix lost error handling when looking up extended ref on log replay
2022-08-25 11:39:56 +02:00
cachefiles
fs: add is_idmapped_mnt() helper
2022-07-02 16:41:14 +02:00
ceph
ceph: don't leak snap_rwsem in handle_cap_grant
2022-08-25 11:40:13 +02:00
cifs
smb3: check xattr value length earlier
2022-08-25 11:40:45 +02:00
coda
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configfs
configfs: fix a race in configfs_{,un}register_subsystem()
2022-03-02 11:48:02 +01:00
cramfs
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crypto
fscrypt: allow 256-bit master keys with AES-256-XTS
2021-11-18 19:16:11 +01:00
debugfs
debugfs: lockdown: Allow reading debugfs files that are not world readable
2022-01-27 11:03:55 +01:00
devpts
fsnotify: fix fsnotify hooks in pseudo filesystems
2022-02-01 17:27:01 +01:00
dlm
dlm: fix pending remove if msg allocation fails
2022-07-29 17:25:24 +02:00
ecryptfs
fs: add is_idmapped_mnt() helper
2022-07-02 16:41:14 +02:00
efivarfs
…
efs
…
erofs
erofs: avoid consecutive detection for Highmem memory
2022-08-17 14:23:12 +02:00
exfat
exfat: use updated exfat_chain directly during renaming
2022-07-29 17:25:30 +02:00
exportfs
exportfs: support idmapped mounts
2022-06-09 10:23:32 +02:00
ext2
ext2: Add more validity checks for inode counts
2022-08-17 14:23:00 +02:00
ext4
ext4: avoid resizing to a partial cluster size
2022-08-25 11:40:40 +02:00
f2fs
f2fs: fix to do sanity check on segment type in build_sit_entries()
2022-08-25 11:40:45 +02:00
fat
fat: add ratelimit to fat*_ent_bread()
2022-06-09 10:22:42 +02:00
freevxfs
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fscache
fscache: Remove an unused static variable
2021-10-04 22:13:12 +01:00
fuse
fuse: Remove the control interface for virtio-fs
2022-08-17 14:24:11 +02:00
gfs2
gfs2: Fix gfs2_file_buffered_write endless loop workaround
2022-07-12 16:34:59 +02:00
hfs
hfs: add lock nesting notation to hfs_find_init
2021-07-15 10:13:49 -07:00
hfsplus
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hostfs
hostfs: support splice_write
2021-08-26 22:28:02 +02:00
hpfs
hpfs: use iomap_fiemap to implement ->fiemap
2021-07-27 11:00:36 +02:00
hugetlbfs
hugetlbfs: fix hugetlbfs_statfs() locking
2022-06-09 10:23:11 +02:00
iomap
iomap: iomap_write_failed fix
2022-06-09 10:22:55 +02:00
isofs
isofs: Fix out of bound access for corrupted isofs image
2021-11-12 15:05:50 +01:00
jbd2
jbd2: fix assertion 'jh->b_frozen_data == NULL' failure when journal aborted
2022-08-17 14:24:01 +02:00
jffs2
jffs2: fix memory leak in jffs2_do_fill_super
2022-06-14 18:36:10 +02:00
jfs
fs: jfs: fix possible NULL pointer dereference in dbFree()
2022-06-09 10:22:41 +02:00
kernfs
kernfs: Separate kernfs_pr_cont_buf and rename_lock.
2022-06-14 18:36:22 +02:00
ksmbd
ksmbd: fix heap-based overflow in set_ntacl_dacl()
2022-08-21 15:17:48 +02:00
lockd
lockd: detect and reject lock arguments that overflow
2022-08-17 14:22:47 +02:00
minix
minix: fix bug when opening a file with O_DIRECT
2022-04-13 20:59:10 +02:00
netfs
netfs: fix parameter of cleanup()
2021-12-29 12:28:59 +01:00
nfs
NFSv4/pnfs: Fix a use-after-free bug in open
2022-08-25 11:40:02 +02:00
nfs_common
nfs: Fix kerneldoc warning shown up by W=1
2021-10-04 22:02:17 +01:00
nfsd
nfsd: eliminate the NFSD_FILE_BREAK_* flags
2022-08-17 14:22:45 +02:00
nilfs2
nilfs2: fix incorrect masking of permission flags for symlinks
2022-07-21 21:24:14 +02:00
nls
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notify
fsnotify: fix wrong lockdep annotations
2022-06-09 10:22:50 +02:00
ntfs
ntfs: fix use-after-free in ntfs_ucsncmp()
2022-08-03 12:03:41 +02:00
ntfs3
fs/ntfs3: uninitialized variable in ntfs_set_acl_ex()
2022-08-25 11:40:21 +02:00
ocfs2
Revert "ocfs2: mount shared volume without ha stack"
2022-08-03 12:03:41 +02:00
omfs
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openpromfs
…
orangefs
orangefs: Fix the size of a memory allocation in orangefs_bufmap_alloc()
2022-01-20 09:13:13 +01:00
overlayfs
ovl: warn if trusted xattr creation fails
2022-08-25 11:40:43 +02:00
proc
proc: fix a dentry lock race between release_task and lookup
2022-08-17 14:24:08 +02:00
pstore
pstore: Don't use semaphores in always-atomic-context code
2022-04-08 14:23:01 +02:00
qnx4
qnx4: work around gcc false positive warning bug
2021-09-21 08:36:48 -07:00
qnx6
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quota
quota: Prevent memory allocation recursion while holding dq_lock
2022-06-22 14:21:56 +02:00
ramfs
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reiserfs
Kbuild updates for v5.15
2021-09-03 15:33:47 -07:00
romfs
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smbfs_common
cifs: Fix crash on unload of cifs_arc4.ko
2021-12-14 10:57:12 +01:00
squashfs
squashfs: use bvec_virt
2021-08-16 10:50:32 -06:00
sysfs
sysfs: Allow deferred execution of iomem_get_mapping()
2021-08-06 13:05:28 +02:00
sysv
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tracefs
tracefs: Set the group ownership in apply_options() not parse_options()
2022-03-02 11:48:05 +01:00
ubifs
ubifs: rename_whiteout: correct old_dir size computing
2022-04-08 14:24:08 +02:00
udf
udf: Avoid using stale lengthOfImpUse
2022-05-15 20:18:52 +02:00
ufs
isystem: ship and use stdarg.h
2021-08-19 09:02:55 +09:00
unicode
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vboxsf
vboxfs: fix broken legacy mount signature checking
2021-09-27 11:26:21 -07:00
verity
fs-verity: fix signed integer overflow with i_size near S64_MAX
2021-09-22 10:56:34 -07:00
xfs
xfs: fix overfilling of reserve pool
2022-08-25 11:40:48 +02:00
zonefs
zonefs: fix zonefs_iomap_begin() for reads
2022-06-25 15:18:40 +02:00
aio.c
aio: Fix incorrect usage of eventfd_signal_allowed()
2021-12-14 10:57:22 +01:00
anon_inodes.c
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attr.c
vfs: Check the truncate maximum size in inode_newsize_ok()
2022-08-17 14:22:50 +02:00
bad_inode.c
vfs: add rcu argument to ->get_acl() callback
2021-08-18 22:08:24 +02:00
binfmt_aout.c
binfmt: a.out: Fix bogus semicolon
2021-09-05 10:15:05 -07:00
binfmt_elf_fdpic.c
coredump: Snapshot the vmas in do_coredump
2022-04-08 14:24:17 +02:00
binfmt_elf.c
coredump: Use the vma snapshot in fill_files_note
2022-04-08 14:24:18 +02:00
binfmt_flat.c
binfmt_flat: do not stop relocating GOT entries prematurely on riscv
2022-06-09 10:22:26 +02:00
binfmt_misc.c
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binfmt_script.c
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buffer.c
mm: fs: fix lru_cache_disabled race in bh_lru
2022-04-08 14:22:54 +02:00
char_dev.c
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compat_binfmt_elf.c
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coredump.c
coredump: Use the vma snapshot in fill_files_note
2022-04-08 14:24:18 +02:00
d_path.c
d_path: make 'prepend()' fill up the buffer exactly on overflow
2021-09-02 10:07:29 -07:00
dax.c
dax: fix cache flush on PMD-mapped pages
2022-06-09 10:23:09 +02:00
dcache.c
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direct-io.c
…
drop_caches.c
fs: drop_caches: fix skipping over shadow cache inodes
2021-09-03 09:58:10 -07:00
eventfd.c
eventfd: Export eventfd_wake_count to modules
2021-09-06 07:20:56 -04:00
eventpoll.c
epoll: autoremove wakers even more aggressively
2022-08-17 14:22:59 +02:00
exec.c
posix-cpu-timers: Cleanup CPU timers before freeing them during exec
2022-08-17 14:24:19 +02:00
fcntl.c
Merge branch 'akpm' (patches from Andrew)
2021-09-03 10:08:28 -07:00
fhandle.c
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file_table.c
SUNRPC: Ensure we flush any closed sockets before xs_xprt_free()
2022-05-18 10:26:57 +02:00
file.c
fs: fix fd table size alignment properly
2022-04-08 14:23:54 +02:00
filesystems.c
fs: simplify get_filesystem_list / get_all_fs_names
2021-08-23 01:25:40 -04:00
fs_context.c
vfs: fs_context: fix up param length parsing in legacy_parse_param
2022-01-20 09:13:14 +01:00
fs_parser.c
namei: Standardize callers of filename_lookup()
2021-09-07 16:07:47 -04:00
fs_pin.c
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fs_struct.c
…
fs_types.c
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fs-writeback.c
writeback: Fix inode->i_io_list not be protected by inode->i_lock error
2022-06-14 18:36:26 +02:00
fsopen.c
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init.c
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inode.c
writeback: Fix inode->i_io_list not be protected by inode->i_lock error
2022-06-14 18:36:26 +02:00
internal.h
block: simplify the block device syncing code
2022-04-27 14:38:50 +02:00
io_uring.c
io_uring: use original request task for inflight tracking
2022-08-21 15:17:47 +02:00
io-wq.c
io-wq: drop wqe lock before creating new worker
2021-12-22 09:32:51 +01:00
io-wq.h
io-wq: provide a way to limit max number of workers
2021-08-29 07:55:55 -06:00
ioctl.c
fs: fix an infinite loop in iomap_fiemap
2022-05-25 09:57:26 +02:00
Kconfig
4 cifs/smb3 fixes, one for DFS reconnect, and one to begin creating common headers for server and client and the other two to rename the cifs_common directory to smbfs_common to be more consistent ie change use of the name cifs to smb which is more accurate
2021-09-12 10:10:21 -07:00
Kconfig.binfmt
binfmt: remove support for em86 (alpha only)
2021-07-25 22:33:03 -07:00
kernel_read_file.c
vfs: check fd has read access in kernel_read_file_from_fd()
2021-10-18 20:22:03 -10:00
libfs.c
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locks.c
Revert "memcg: enable accounting for file lock caches"
2021-09-07 11:21:48 -07:00
Makefile
4 cifs/smb3 fixes, one for DFS reconnect, and one to begin creating common headers for server and client and the other two to rename the cifs_common directory to smbfs_common to be more consistent ie change use of the name cifs to smb which is more accurate
2021-09-12 10:10:21 -07:00
mbcache.c
mbcache: add functions to delete entry if unused
2022-08-17 14:22:57 +02:00
mount.h
…
mpage.c
…
namei.c
__follow_mount_rcu(): verify that mount_lock remains unchanged
2022-08-17 14:24:19 +02:00
namespace.c
fs: support mapped mounts of mapped filesystems
2022-07-02 16:41:17 +02:00
no-block.c
…
nsfs.c
…
open.c
fs: support mapped mounts of mapped filesystems
2022-07-02 16:41:17 +02:00
pipe.c
pipe: Fix missing lock in pipe_resize_ring()
2022-06-06 08:43:37 +02:00
pnode.c
…
pnode.h
…
posix_acl.c
fs: fix acl translation
2022-07-02 16:41:17 +02:00
proc_namespace.c
fs: add is_idmapped_mnt() helper
2022-07-02 16:41:14 +02:00
read_write.c
fs: sendfile handles O_NONBLOCK of out_fd
2022-08-03 12:03:41 +02:00
readdir.c
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remap_range.c
fs/remap: constrain dedupe of EOF blocks
2022-07-21 21:24:14 +02:00
select.c
select: Fix indefinitely sleeping task in poll_schedule_timeout()
2022-01-29 10:58:25 +01:00
seq_file.c
rxrpc: Fix locking issue
2022-07-12 16:35:08 +02:00
signalfd.c
signalfd: use wake_up_pollfree()
2021-12-14 10:57:15 +01:00
splice.c
fs: check FMODE_LSEEK to control internal pipe splicing
2022-08-17 14:23:31 +02:00
stack.c
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stat.c
stat: fix inconsistency between struct stat and struct compat_stat
2022-04-27 14:38:57 +02:00
statfs.c
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super.c
vfs: make freeze_super abort when sync_filesystem returns error
2022-02-23 12:03:05 +01:00
sync.c
vfs: make sync_filesystem return errors from ->sync_fs
2022-04-27 14:38:50 +02:00
timerfd.c
timerfd: Provide timerfd_resume()
2021-08-10 17:57:22 +02:00
userfaultfd.c
userfaultfd: fix a race between writeprotect and exit_mmap()
2021-10-18 20:22:02 -10:00
utimes.c
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xattr.c
fs: fix acl translation
2022-07-02 16:41:17 +02:00