Chao Yu 9e222d7ca5 f2fs: fix race in between GC and atomic open ...

[ Upstream commit 27319ba404 ]

Thread					GC thread
- f2fs_ioc_start_atomic_write
 - get_dirty_pages
 - filemap_write_and_wait_range
					- f2fs_gc
					 - do_garbage_collect
					  - gc_data_segment
					   - move_data_page
					    - f2fs_is_atomic_file
					    - set_page_dirty
 - set_inode_flag(, FI_ATOMIC_FILE)

Dirty data page can still be generated by GC in race condition as
above call stack.

This patch adds fi->dio_rwsem[WRITE] in f2fs_ioc_start_atomic_write
to avoid such race.

Signed-off-by: Chao Yu <yuchao0@huawei.com>
Signed-off-by: Jaegeuk Kim <jaegeuk@kernel.org>
Signed-off-by: Sasha Levin <alexander.levin@microsoft.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

2018-08-03 07:55:15 +02:00

..

acl.c

f2fs: Don't clear SGID when inheriting ACLs

2017-07-27 15:08:03 -07:00

acl.h

f2fs: remove dead code f2fs_check_acl

2016-09-14 16:52:36 -07:00

checkpoint.c

f2fs: fix to determine start_cp_addr by sbi->cur_cp_pack

2017-01-06 10:40:14 +01:00

data.c

f2fs: fix a dead loop in f2fs_fiemap()

2018-05-16 10:08:42 +02:00

debug.c

f2fs: remove percpu_count due to performance regression

2017-01-12 11:39:35 +01:00

dir.c

fscrypt: use ENOKEY when file cannot be created w/o key

2017-11-30 08:39:11 +00:00

extent_cache.c

f2fs: fix to check extent cache in f2fs_drop_extent_tree

2018-05-30 07:50:46 +02:00

f2fs.h

crypto: Work around deallocated stack frame reference gcc bug on sparc.

2017-06-24 07:11:17 +02:00

file.c

f2fs: fix race in between GC and atomic open

2018-08-03 07:55:15 +02:00

gc.c

f2fs: fix error path of move_data_page

2018-08-03 07:55:14 +02:00

gc.h

f2fs: detect idle time depending on user behavior

2016-01-11 15:56:37 -08:00

hash.c

f2fs: check entire encrypted bigname when finding a dentry

2017-05-25 15:44:38 +02:00

inline.c

f2fs: check entire encrypted bigname when finding a dentry

2017-05-25 15:44:38 +02:00

inode.c

f2fs: support configuring fault injection per superblock

2016-09-30 17:34:31 -07:00

Kconfig

f2fs: add mount option to select fault injection ratio

2016-05-07 10:32:22 -07:00

Makefile

fs crypto: move per-file encryption from f2fs tree to fs/crypto

2016-03-17 21:19:33 -07:00

namei.c

do d_instantiate/unlock_new_inode combinations safely

2018-05-30 07:50:16 +02:00

node.c

Merge branch 'work.misc' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs

2016-10-10 13:04:49 -07:00

node.h

f2fs: introduce cp_lock to protect updating of ckpt_flags

2016-09-30 17:34:20 -07:00

recovery.c

f2fs: check hot_data for roll-forward recovery

2017-09-20 08:19:56 +02:00

segment.c

f2fs: fix to wait page writeback during revoking atomic write

2018-08-03 07:55:15 +02:00

segment.h

f2fs: add ovp valid_blocks check for bg gc victim to fg_gc

2017-03-12 06:41:51 +01:00

shrinker.c

f2fs: produce more nids and reduce readahead nats

2016-07-06 10:44:08 -07:00

super.c

disable loading f2fs module on PAGE_SIZE > 4KB

2018-08-03 07:55:14 +02:00

trace.c

f2fs: use bio op accessors

2016-06-07 13:41:38 -06:00

trace.h

f2fs: add sbi and page pointer in f2fs_io_info

2015-05-28 15:41:32 -07:00

xattr.c

Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs

2016-10-10 20:16:43 -07:00

xattr.h

f2fs: add missing argument to f2fs_setxattr stub

2016-03-17 21:19:47 -07:00