md: remove 'idx' from 'struct resync_pages'

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bio_add_page() won't fail for resync bio, and the page index for each
bio is same, so remove it.

More importantly the 'idx' of 'struct resync_pages' is initialized in
mempool allocator function, the current way is wrong since mempool is
only responsible for allocation, we can't use that for initialization.

Suggested-by: NeilBrown <neilb@suse.com>
Reported-by: NeilBrown <neilb@suse.com>
Reported-and-tested-by: Patrick <dto@gmx.net>
Fixes: f0250618361d(md: raid10: don't use bio's vec table to manage resync pages)
Fixes: 98d30c5812c3(md: raid1: don't use bio's vec table to manage resync pages)
Cc: stable@vger.kernel.org (4.12+)
Signed-off-by: Ming Lei <ming.lei@redhat.com>
Signed-off-by: Shaohua Li <shli@fb.com>

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This commit is contained in:

Ming Lei 2017-07-14 16:14:42 +08:00 • committed by Shaohua Li

parent 4ec9f7a18b

commit 022e510fcb

3 changed files with 6 additions and 7 deletions

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1

drivers/md/md.h

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6

drivers/md/raid1.c

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6

drivers/md/raid10.c

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