tree 4b832dab3687db5b719266d758a916bbc118e1f0
parent 9b2dc8b665932a8e681a7ab3237f60475e75e161
author Namhyung Kim <namhyung@gmail.com> 1308025219 +1000
committer NeilBrown <neilb@suse.de> 1308025219 +1000

md/raid5: fix FUA request handling in ops_run_io()

Commit e9c7469bb4f5 ("md: implment REQ_FLUSH/FUA support")
introduced R5_WantFUA flag and set rw to WRITE_FUA in that case.
However remaining code still checks whether rw is exactly same
as WRITE or not, so FUAed-write ends up with being treated as
READ. Fix it.

This bug has been present since 2.6.37 and the fix is suitable for any
-stable kernel since then.  It is not clear why this has not caused
more problems.

Cc: Tejun Heo <tj@kernel.org>
Cc: stable@kernel.org
Signed-off-by: Namhyung Kim <namhyung@gmail.com>
Signed-off-by: NeilBrown <neilb@suse.de>