md/raid5: duplicate some more handle_stripe_clean_event code in break_stripe_batch_list

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break_stripe_batch list didn't clear head_sh->batch_head.
This was probably a bug.

Also clear all R5_Overlap flags and if any were cleared, wake up
'wait_for_overlap'.
This isn't always necessary but the worst effect is a little
extra checking for code that is waiting on wait_for_overlap.

Also, don't use wake_up_nr() because that does the wrong thing
if 'nr' is zero, and it number of flags cleared doesn't
strongly correlate with the number of threads to wake.

Signed-off-by: NeilBrown <neilb@suse.de>

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NeilBrown 2015-05-21 12:00:47 +10:00

parent 4e3d62ff49

commit fb642b92c2

1 changed files with 16 additions and 3 deletions

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drivers/md/raid5.c

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