tree bd084366fa8b61fd1eec312b54d0e861a39fba18
parent e7836bd6f60d659830b87804f7f4026edfe0f1d1
author Shaohua Li <shli@kernel.org> 1342677691 +1000
committer NeilBrown <neilb@suse.de> 1342677691 +1000

raid5: remove unnecessary bitmap write optimization

Neil pointed out the bitmap write optimization in handle_stripe_clean_event()
is unnecessary, because the chance one stripe gets written twice in the mean
time is rare. We can always do a bitmap_startwrite when a write request is
added to a stripe and bitmap_endwrite after write request is done.  Delete the
optimization. With it, we can delete some cases of device_lock.

Signed-off-by: Shaohua Li <shli@fusionio.com>
Signed-off-by: NeilBrown <neilb@suse.de>