f2fs: change i_compr_blocks of inode to atomic value

Browse source

writepages() can be concurrently invoked for the same file by different
threads such as a thread fsyncing the file and a kworker kernel thread.
So, changing i_compr_blocks without protection is racy and we need to
protect it by changing it with atomic type value. Plus, we don't need
a 64bit value for i_compr_blocks, so just we will use a atomic value,
not atomic64.

Signed-off-by: Daeho Jeong <daehojeong@google.com>
Reviewed-by: Chao Yu <yuchao0@huawei.com>
Signed-off-by: Jaegeuk Kim <jaegeuk@kernel.org>

...

This commit is contained in:

Daeho Jeong 2020-09-08 11:44:10 +09:00 • committed by Jaegeuk Kim

parent 32c0fec1aa

commit c2759ebaf7

4 changed files with 30 additions and 21 deletions

Show all changes Ignore whitespace when comparing lines Ignore changes in amount of whitespace Ignore changes in whitespace at EOL

Download patch file Download diff file Expand all files Collapse all files

17

fs/f2fs/f2fs.h

View file

22

fs/f2fs/file.c

View file

11

fs/f2fs/inode.c

View file

1

fs/f2fs/super.c

View file