tree 6b93d189c07456be4ed6758a6900ef5af6ed4b20
parent 5d909cdbbba244ecb4c2dfc4dc3e3bc29529fb05
author Jaegeuk Kim <jaegeuk@kernel.org> 1449512334 -0800
committer Jaegeuk Kim <jaegeuk@kernel.org> 1449683598 -0800

f2fs: use lock_buffer when changing superblock

When modifying sb contents, we need to use lock its buffer.

Signed-off-by: Jaegeuk Kim <jaegeuk@kernel.org>