md/raid5: avoid reading parity blocks for full-stripe write to degraded array

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When performing a reconstruct write, we need to read all blocks
that are not being over-written .. except the parity (P and Q) blocks.

The code currently reads these (as they are not being over-written!)
unnecessarily.

Signed-off-by: NeilBrown <neilb@suse.de>
Fixes: ea664c8245 ("md/raid5: need_this_block: tidy/fix last condition.")

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This commit is contained in:

NeilBrown 2015-05-08 18:19:33 +10:00

parent b0c783b323

commit 10d82c5f0d

1 changed files with 3 additions and 1 deletions

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drivers/md/raid5.c

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