raid5-ppl: partial parity calculation optimization

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In case of read-modify-write, partial partity is the same as the result
of ops_run_prexor5(), so we can just copy sh->dev[pd_idx].page into
sh->ppl_page instead of calculating it again.

Signed-off-by: Artur Paszkiewicz <artur.paszkiewicz@intel.com>
Signed-off-by: Shaohua Li <shli@fb.com>

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Artur Paszkiewicz 2017-04-04 13:13:58 +02:00 • committed by Shaohua Li

parent 845b9e229f

commit ae1713e296

2 changed files with 13 additions and 13 deletions

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20

drivers/md/raid5-ppl.c

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6

drivers/md/raid5.c

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