raid5: remove unnecessary bitmap write optimization

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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>

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Shaohua Li 2012-07-19 16:01:31 +10:00 • committed by NeilBrown

parent e7836bd6f6

commit 7eaf7e8eb3

1 changed files with 9 additions and 12 deletions

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drivers/md/raid5.c

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