tree 1793a9255556a03ec345d1d7a73c0e1fcaad6790
parent de69ac794f7e3e57f67c3f814f30e00bf48b99c9
author Chao Yu <yuchao0@huawei.com> 1557027646 +0800
committer Jaegeuk Kim <jaegeuk@kernel.org> 1557377226 -0700

f2fs: fix to avoid potential race on sbi->unusable_block_count access/update

Use sbi.stat_lock to protect sbi->unusable_block_count accesss/udpate, in
order to avoid potential race on it.

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