tree 4d77935e5af0e0cb9aea4a724384b989298a3f2d
parent 595046758d8e69c440ea2f25d6a3014fa099a0ca
author Chao Yu <yuchao0@huawei.com> 1507542919 +0800
committer Jaegeuk Kim <jaegeuk@kernel.org> 1510812379 -0800

f2fs: fix to avoid race when accessing last_disk_size

last_disk_size could be wrong due to concurrently updating, so using
i_sem semaphore to make last_disk_size updating exclusive to fix this
issue.

Signed-off-by: Chao Yu <yuchao0@huawei.com>
Signed-off-by: Jaegeuk Kim <jaegeuk@kernel.org>