tree 52efc6a6f4a78ed52514b50e0b72c93fc07864b5
parent d54c795b495b9bd417e482286c832c9a8eb210ae
author Jaegeuk Kim <jaegeuk.kim@samsung.com> 1396397082 +0900
committer Jaegeuk Kim <jaegeuk.kim@samsung.com> 1396400187 +0900

f2fs: fix to cover io->bio with io_rwsem

In the f2fs_wait_on_page_writeback, io->bio should be covered by io_rwsem.
Otherwise, the bio pointer can become a dangling pointer due to data races.

Signed-off-by: Jaegeuk Kim <jaegeuk.kim@samsung.com>