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(parent: 4367af5) | patch
md/raid1: store behind-write pages in bi_vecs.
authorNeilBrown <neilb@suse.de>
Thu, 28 Jul 2011 01:32:10 +0000 (11:32 +1000)
committerNeilBrown <neilb@suse.de>
Thu, 28 Jul 2011 01:32:10 +0000 (11:32 +1000)
commit2ca68f5ed7383733102ee53cd8fa4021ecc3b275
tree29543cff802770d90380b889cf8b0cc01e7d1814tree | snapshot
parent4367af556133723d0f443e14ca8170d9447317cbcommit | diff
md/raid1: store behind-write pages in bi_vecs.

When performing write-behind we allocate pages to store the data
during write.
Previously we just keep a list of pages.  Now we keep a list of
bi_vec which includes offset and size.
This means that the r1bio has complete information to create a new
bio which will be needed for retrying after write errors.

Signed-off-by: NeilBrown <neilb@suse.de>
Reviewed-by: Namhyung Kim <namhyung@gmail.com>
drivers/md/raid1.c diff | blob | history
drivers/md/raid1.h diff | blob | history
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