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ded2d726a3
linux/fs
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Zhang Yi ded2d726a3 ext4: fix stale data if it bail out of the extents mapping loop 
During the process of writing back folios, if
mpage_map_and_submit_extent() exits the extent mapping loop due to an
ENOSPC or ENOMEM error, it may result in stale data or filesystem
inconsistency in environments where the block size is smaller than the
folio size.

When mapping a discontinuous folio in mpage_map_and_submit_extent(),
some buffers may have already be mapped. If we exit the mapping loop
prematurely, the folio data within the mapped range will not be written
back, and the file's disk size will not be updated. Once the transaction
that includes this range of extents is committed, this can lead to stale
data or filesystem inconsistency.

Fix this by submitting the current processing partially mapped folio.

Suggested-by: Jan Kara <jack@suse.cz>
Signed-off-by: Zhang Yi <yi.zhang@huawei.com>
Reviewed-by: Jan Kara <jack@suse.cz>
Link: https://patch.msgid.link/20250707140814.542883-4-yi.zhang@huaweicloud.com
Signed-off-by: Theodore Ts'o <tytso@mit.edu>
2025-07-13 23:41:51 -04:00
..
9p vfs-6.16-rc1.netfs 2025-06-02 15:04:06 -07:00
adfs Merge patch series "adfs, affs, befs, hfs, hfsplus: convert to new mount api" 2024-10-08 14:41:53 +02:00
affs vfs-6.15-rc1.async.dir 2025-03-24 10:47:14 -07:00
afs vfs-6.16-rc1.netfs 2025-06-02 15:04:06 -07:00
autofs VFS: rename lookup_one_len family to lookup_noperm and remove permission check 2025-04-08 11:24:36 +02:00
bcachefs bcachefs: Plumb correct ip to trans_relock_fail tracepoint 2025-06-26 00:01:16 -04:00
befs befs: convert befs to use the new mount api 2024-09-18 11:44:43 +02:00
bfs bfs: convert bfs to use the new mount api 2025-04-07 09:36:20 +02:00
btrfs for-6.16-rc3-tag 2025-06-23 11:16:38 -07:00
cachefiles vfs-6.16-rc1.netfs 2025-06-02 15:04:06 -07:00
ceph A one-liner that leads to a startling (but also very much rational) 2025-06-06 17:56:19 -07:00
coda Change inode_operations.mkdir to return struct dentry * 2025-02-27 20:00:17 +01:00
configfs - The 3 patch series "hung_task: extend blocking task stacktrace dump to 2025-05-31 19:12:53 -07:00
cramfs
crypto fscrypt: add support for hardware-wrapped keys 2025-04-08 19:32:11 -07:00
debugfs VFS: rename lookup_one_len family to lookup_noperm and remove permission check 2025-04-08 11:24:36 +02:00
devpts devpts: Fix type for uid and gid params 2025-04-07 15:22:12 +02:00
dlm treewide, timers: Rename from_timer() to timer_container_of() 2025-06-08 09:07:37 +02:00
ecryptfs VFS: rename lookup_one_len family to lookup_noperm and remove permission check 2025-04-08 11:24:36 +02:00
efivarfs vfs-6.16-rc1.super 2025-05-26 09:33:44 -07:00
efs efs: fix the efs new mount api implementation 2024-10-15 15:58:36 +02:00
erofs erofs: remove a superfluous check for encoded extents 2025-06-20 23:41:12 +08:00
exfat exfat: do not clear volume dirty flag during sync 2025-05-26 20:25:23 +09:00
exportfs readdir: supply dir_context.count as readdir buffer size hint 2025-05-29 12:31:23 +02:00
ext2 ext2: Deprecate DAX 2025-04-29 13:08:20 +02:00
ext4 ext4: fix stale data if it bail out of the extents mapping loop 2025-07-13 23:41:51 -04:00
f2fs f2fs: fix to zero post-eof page 2025-06-18 21:35:29 +00:00
fat Change inode_operations.mkdir to return struct dentry * 2025-02-27 20:00:17 +01:00
freevxfs freevxfs: Replace one-element array with flexible array member 2024-11-06 10:42:06 +01:00
fuse fuse: fix runtime warning on truncate_folio_batch_exceptionals() 2025-06-25 15:55:03 -07:00
gfs2 gfs2: Don't clear sb->s_fs_info in gfs2_sys_fs_add 2025-05-30 19:20:20 +02:00
hfs Revert "hfs{plus}: add deprecation warning" 2025-04-19 22:48:59 +02:00
hfsplus hfsplus: use bdev_rw_virt in hfsplus_submit_bio 2025-05-07 07:31:08 -06:00
hostfs Updates for UML for this cycle, notably: 2025-04-02 12:25:03 -07:00
hpfs Change inode_operations.mkdir to return struct dentry * 2025-02-27 20:00:17 +01:00
hugetlbfs - The 6 patch series "Enable strict percpu address space checks" from 2025-04-01 09:29:18 -07:00
iomap iomap: don't lose folio dropbehind state for overwrites 2025-05-28 09:26:07 +02:00
isofs isofs: fix Y2038 and Y2156 issues in Rock Ridge TF entry 2025-04-15 11:56:57 +02:00
jbd2 treewide, timers: Rename from_timer() to timer_container_of() 2025-06-08 09:07:37 +02:00
jffs2 jffs2: check jffs2_prealloc_raw_node_refs() result in few other places 2025-05-22 20:54:38 +02:00
jfs - The 11 patch series "Add folio_mk_pte()" from Matthew Wilcox 2025-05-31 15:44:16 -07:00
kernfs Driver core changes for 6.16-rc1 2025-05-29 09:11:39 -07:00
lockd sysctl: Fixes nsm_local_state bounds 2025-03-10 09:11:13 -04:00
minix Change inode_operations.mkdir to return struct dentry * 2025-02-27 20:00:17 +01:00
netfs vfs-6.16-rc1.netfs 2025-06-02 15:04:06 -07:00
nfs NFS Clent Updates for Linux 6.16 2025-06-03 16:13:32 -07:00
nfs_common nfs_localio: change nfsd_file_put_local() to take a pointer to __rcu pointer 2025-05-28 17:17:14 -04:00
nfsd nfsd-6.16 fixes: 2025-06-21 09:20:15 -07:00
nilfs2 treewide, timers: Rename from_timer() to timer_container_of() 2025-06-08 09:07:37 +02:00
nls move asm/unaligned.h to linux/unaligned.h 2024-10-02 17:23:23 -04:00
notify \n 2025-05-29 10:34:26 -07:00
ntfs3 - The 2 patch series "zram: support algorithm-specific parameters" from 2025-06-02 16:00:26 -07:00
ocfs2 treewide, timers: Rename from_timer() to timer_container_of() 2025-06-08 09:07:37 +02:00
omfs omfs: convert to new mount API 2025-04-28 10:54:39 +02:00
openpromfs
orangefs orangefs: Convert to use the new mount API 2025-05-28 12:05:30 -07:00
overlayfs vfs-6.16-rc3.fixes 2025-06-16 08:18:43 -07:00
proc fs/proc/task_mmu: fix PAGE_IS_PFNZERO detection for the huge zero folio 2025-06-25 15:55:03 -07:00
pstore treewide: Switch/rename to timer_delete[_sync]() 2025-04-05 10:30:12 +02:00
qnx4
qnx6 fs/qnx6: Fix building with GCC 15 2024-12-03 10:40:36 +01:00
quota VFS: rename lookup_one_len family to lookup_noperm and remove permission check 2025-04-08 11:24:36 +02:00
ramfs Change inode_operations.mkdir to return struct dentry * 2025-02-27 20:00:17 +01:00
resctrl x86,fs/resctrl: Remove inappropriate references to cacheinfo in the resctrl subsystem 2025-06-16 21:06:12 +02:00
romfs
smb cifs: Fix reading into an ITER_FOLIOQ from the smbdirect code 2025-06-26 11:13:16 -05:00
squashfs squashfs: add optional full compressed block caching 2025-05-27 19:40:33 -07:00
sysfs sysfs: constify attribute_group::bin_attrs 2025-04-15 18:46:10 +02:00
tests
tracefs VFS: rename lookup_one_len family to lookup_noperm and remove permission check 2025-04-08 11:24:36 +02:00
ubifs This pull request contains the following fixes for JFFS2 and UBIFS: 2025-06-07 07:24:07 -07:00
udf udf: Make sure i_lenExtents is uptodate on inode eviction 2025-05-07 12:04:07 +02:00
ufs ufs: convert ufs to the new mount API 2025-05-14 22:40:55 -04:00
unicode unicode: kunit: change tests filename and path 2025-02-12 14:00:11 -08:00
vboxsf vboxsf: Convert to writepages 2025-04-07 09:36:48 +02:00
verity Revert "fsverity: relax build time dependency on CRYPTO_SHA256" 2025-02-17 11:34:15 -08:00
xfs vfs-6.16-rc2.fixes 2025-06-02 12:49:16 -07:00
zonefs zonefs: use bdev_rw_virt in zonefs_read_super 2025-05-07 07:31:07 -06:00
aio.c fs: aio: initialize .ki_write_stream of read-write request 2025-05-07 08:00:11 -06:00
anon_inodes.c anon_inode: raise SB_I_NODEV and SB_I_NOEXEC 2025-04-07 16:19:04 +02:00
attr.c fs: handle delegated timestamps in setattr_copy_mgtime 2024-10-10 10:20:51 +02:00
backing-file.c tree-wide: s/revert_creds_light()/revert_creds()/g 2024-12-02 11:25:09 +01:00
bad_inode.c Change inode_operations.mkdir to return struct dentry * 2025-02-27 20:00:17 +01:00
binfmt_elf_fdpic.c binfmt_elf_fdpic: fix variable set but not used warning 2025-03-07 20:07:33 -08:00
binfmt_elf.c vfs-6.16-rc1.misc 2025-05-26 09:02:39 -07:00
binfmt_flat.c binfmt_flat: Fix integer overflow bug on 32 bit systems 2025-01-10 08:49:05 -08:00
binfmt_misc.c VFS: rename lookup_one_len family to lookup_noperm and remove permission check 2025-04-08 11:24:36 +02:00
binfmt_script.c
bpf_fs_kfuncs.c bpf: fs/xattr: Add BPF kfuncs to set and remove xattrs 2025-02-13 19:35:32 -08:00
buffer.c vfs-6.16-rc1.writepage 2025-05-26 08:23:09 -07:00
char_dev.c fs: Reorganize kerneldoc parameter names 2024-10-22 11:16:57 +02:00
compat_binfmt_elf.c binfmt_elf: Wire up AT_HWCAP3 at AT_HWCAP4 2024-10-17 18:38:49 +01:00
coredump.c coredump: validate socket name as it is written 2025-05-21 13:59:12 +02:00
d_path.c
dax.c vfs-6.16-rc2.fixes 2025-06-02 12:49:16 -07:00
dcache.c vfs-6.16-rc1.misc 2025-05-26 09:02:39 -07:00
direct-io.c
drop_caches.c fs: drop_caches: move sysctl to fs/drop_caches.c 2025-02-07 16:53:04 +01:00
eventfd.c make use of anon_inode_getfile_fmode() 2025-02-21 10:25:31 +01:00
eventpoll.c fs/eventpoll: fix endless busy loop after timeout has expired 2025-05-02 14:21:26 +02:00
exec.c - The 11 patch series "Add folio_mk_pte()" from Matthew Wilcox 2025-05-31 15:44:16 -07:00
fcntl.c fs: get rid of __FMODE_NONOTIFY kludge 2024-12-09 11:34:29 +01:00
fhandle.c exportfs: add permission method 2024-12-17 09:16:11 +01:00
file_table.c fs: Make file-nr output the total allocated file handles 2025-04-21 10:27:58 +02:00
file.c fs: drop assert in file_seek_cur_needs_f_lock 2025-06-16 09:59:24 +02:00
filesystems.c fs/filesystems: Fix potential unsigned integer underflow in fs_name() 2025-04-14 13:05:59 +02:00
fs_context.c fs/fs_context: Mark an unlikely if condition with unlikely() in vfs_parse_monolithic_sep() 2025-04-14 13:05:59 +02:00
fs_parser.c fs/fs_parse: Remove unused and problematic validate_constant_table() 2025-04-21 10:27:59 +02:00
fs_pin.c
fs_struct.c
fs_types.c
fs-writeback.c fs: fs-writeback: move sysctl to fs/fs-writeback.c 2025-02-07 16:53:04 +01:00
fsopen.c fs: support O_PATH fds with FSCONFIG_SET_FD 2025-02-12 10:02:10 +01:00
init.c VFS: Change vfs_mkdir() to return the dentry. 2025-03-05 11:52:50 +01:00
inode.c fs: call inode_sb_list_add() outside of inode hash lock 2025-03-20 13:06:51 +01:00
internal.h vfs-6.16-rc1.super 2025-05-26 09:33:44 -07:00
ioctl.c vfs-6.16-rc1.super 2025-05-26 09:33:44 -07:00
Kconfig fs/resctrl: Add boiler plate for external resctrl code 2025-05-16 11:05:40 +02:00
Kconfig.binfmt
kernel_read_file.c fdget(), trivial conversions 2024-11-03 01:28:06 -05:00
libfs.c vfs-6.16-rc1.super 2025-05-26 09:33:44 -07:00
locks.c treewide: const qualify ctl_tables where applicable 2025-01-28 13:48:37 +01:00
Makefile fs/resctrl: Add boiler plate for external resctrl code 2025-05-16 11:05:40 +02:00
mbcache.c
mnt_idmapping.c statmount: allow to retrieve idmappings 2025-02-12 12:12:27 +01:00
mount.h Don't propagate mounts into detached trees 2025-05-26 17:35:32 -04:00
mpage.c fs: use writeback_iter directly in mpage_writepages 2025-05-09 12:37:48 +02:00
namei.c VFS: change try_lookup_noperm() to skip revalidation 2025-06-11 12:03:42 +02:00
namespace.c userns and mnt_idmap leak in open_tree_attr(2) 2025-06-24 10:25:04 -04:00
nsfs.c vfs-6.15-rc1.nsfs 2025-03-24 11:38:12 -07:00
open.c fs/open: make do_truncate() killable 2025-05-15 12:03:12 +02:00
pidfs.c pidfs: never refuse ppid == 0 in PIDFD_GET_INFO 2025-06-04 22:48:32 +02:00
pipe.c sort.h: hoist cmp_int() into generic header file 2025-05-11 17:54:12 -07:00
pnode.c Don't propagate mounts into detached trees 2025-05-26 17:35:32 -04:00
pnode.h replace collect_mounts()/drop_collected_mounts() with a safer variant 2025-06-23 14:01:49 -04:00
posix_acl.c acl: Annotate struct posix_acl with __counted_by() 2024-10-22 11:16:59 +02:00
proc_namespace.c ->mnt_devname is never NULL 2025-05-23 14:20:44 +02:00
read_write.c fs/read_write: make default_llseek() killable 2025-05-15 12:03:12 +02:00
readdir.c readdir: supply dir_context.count as readdir buffer size hint 2025-05-29 12:31:23 +02:00
remap_range.c convert vfs_dedupe_file_range(). 2024-11-03 01:28:07 -05:00
select.c select: core_sys_select add unlikely branch hint on return path 2025-04-21 10:27:58 +02:00
seq_file.c fs: Reorganize kerneldoc parameter names 2024-10-22 11:16:57 +02:00
signalfd.c make use of anon_inode_getfile_fmode() 2025-02-21 10:25:31 +01:00
splice.c splice: remove duplicate noinline from pipe_clear_nowait 2025-04-25 12:11:56 +02:00
stack.c
stat.c xfs: New code for 6.16 2025-05-26 12:56:01 -07:00
statfs.c fdget_raw() users: switch to CLASS(fd_raw) 2024-11-03 01:28:06 -05:00
super.c fs: unlock the superblock during iterate_supers_type 2025-06-12 14:27:39 +02:00
sync.c fdget(), trivial conversions 2024-11-03 01:28:06 -05:00
sysctls.c treewide: const qualify ctl_tables where applicable 2025-01-28 13:48:37 +01:00
timerfd.c A treewide hrtimer timer cleanup 2025-03-25 10:54:15 -07:00
userfaultfd.c mm/userfaultfd: fix uninitialized output field for -EAGAIN race 2025-05-07 23:39:39 -07:00
utimes.c fdget(), more trivial conversions 2024-11-03 01:28:06 -05:00
xattr.c fs/xattr.c: fix simple_xattr_list() 2025-06-06 10:00:17 +02:00