md/raid5: need_this_block: start simplifying the last two conditions.

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Both the last two cases are only relevant if something has failed and
something needs to be written (but not over-written), and if it is OK
to pre-read blocks at this point.  So factor out those tests and
explain them.

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

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NeilBrown 2015-02-02 11:49:10 +11:00

parent a79cfe12c6

commit a9d56950f7

1 changed files with 23 additions and 5 deletions

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drivers/md/raid5.c

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