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df0736d70c
linux/fs/f2fs
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Daeho Jeong df0736d70c f2fs: fix null page reference in redirty_blocks 
By Colin's static analysis, we found out there is a null page reference
under low memory situation in redirty_blocks. I've made the page finding
loop stop immediately and return an error not to cause further memory
pressure when we run into a failure to find a page under low memory
condition.

Signed-off-by: Daeho Jeong <daehojeong@google.com>
Reported-by: Colin Ian King <colin.king@canonical.com>
Fixes: 5fdb322ff2 ("f2fs: add F2FS_IOC_DECOMPRESS_FILE and F2FS_IOC_COMPRESS_FILE")
Reviewed-by: Colin Ian King <colin.king@canonical.com>
Reviewed-by: Chao Yu <yuchao0@huawei.com>
Signed-off-by: Jaegeuk Kim <jaegeuk@kernel.org>
2021-01-27 15:20:04 -08:00
..
acl.c f2fs: enhance to update i_mode and acl atomically in f2fs_setattr() 2021-01-27 15:20:00 -08:00
acl.h f2fs: Use the correct style for SPDX License Identifier 2020-05-08 06:55:55 -07:00
checkpoint.c f2fs-for-5.11-rc1 2020-12-17 11:18:00 -08:00
compress.c f2fs: clean up post-read processing 2021-01-27 15:20:04 -08:00
compress.h f2fs: compress: fix compression chksum 2020-12-10 09:13:53 -08:00
data.c f2fs: clean up post-read processing 2021-01-27 15:20:04 -08:00
debug.c f2fs: avoid race condition for shrinker count 2020-12-03 00:59:26 -08:00
dir.c f2fs-for-5.11-rc1 2020-12-17 11:18:00 -08:00
extent_cache.c f2fs: support 64-bits key in f2fs rb-tree node entry 2020-09-10 14:03:30 -07:00
f2fs.h f2fs: clean up post-read processing 2021-01-27 15:20:04 -08:00
file.c f2fs: fix null page reference in redirty_blocks 2021-01-27 15:20:04 -08:00
gc.c f2fs: trival cleanup in move_data_block() 2021-01-27 15:20:03 -08:00
gc.h f2fs: support age threshold based garbage collection 2020-09-11 11:11:15 -07:00
hash.c f2fs: Handle casefolding with Encryption 2020-12-02 22:00:21 -08:00
inline.c f2fs: inline: fix wrong inline inode stat 2020-12-08 14:25:41 -08:00
inode.c f2fs: compress: support chksum 2020-12-02 22:00:22 -08:00
Kconfig f2fs: compress: support compress level 2021-01-27 15:20:02 -08:00
Makefile f2fs: support data compression 2020-01-17 16:48:07 -08:00
namei.c fscrypt: Have filesystems handle their d_ops 2020-12-02 22:00:21 -08:00
node.c f2fs: Replace expression with offsetof() 2021-01-27 15:20:00 -08:00
node.h f2fs: avoid race condition for shrinker count 2020-12-03 00:59:26 -08:00
recovery.c f2fs: change to use rwsem for cp_mutex 2020-12-02 22:00:21 -08:00
segment.c f2fs: add compress_mode mount option 2020-12-03 00:11:57 -08:00
segment.h f2fs: handle unallocated section and zone on pinned/atgc 2021-01-27 15:19:59 -08:00
shrinker.c f2fs: avoid race condition for shrinker count 2020-12-03 00:59:26 -08:00
super.c f2fs: compress: support compress level 2021-01-27 15:20:02 -08:00
sysfs.c f2fs: introduce a new per-sb directory in sysfs 2021-01-27 15:20:02 -08:00
trace.c f2fs: do not use mutex lock in atomic context 2019-03-05 19:58:06 -08:00
trace.h f2fs: Use the correct style for SPDX License Identifier 2020-05-08 06:55:55 -07:00
verity.c mm/readahead: make page_cache_ra_unbounded take a readahead_control 2020-10-16 11:11:16 -07:00
xattr.c f2fs: enhance to update i_mode and acl atomically in f2fs_setattr() 2021-01-27 15:20:00 -08:00
xattr.h f2fs: code cleanup by removing ifdef macro surrounding 2020-05-26 18:56:10 -07:00