md/raid1: Handle write errors by updating badblock log.
authorNeilBrown <neilb@suse.de>
Thu, 28 Jul 2011 01:32:41 +0000 (11:32 +1000)
committerNeilBrown <neilb@suse.de>
Thu, 28 Jul 2011 01:32:41 +0000 (11:32 +1000)
commitcd5ff9a16f0831f68c1024d5d776075b5123b034
tree490e297bde3d0c52b55d38b38ed1cdb5b5b6f43e
parent2ca68f5ed7383733102ee53cd8fa4021ecc3b275
md/raid1:  Handle write errors by updating badblock log.

When we get a write error (in the data area, not in metadata),
update the badblock log rather than failing the whole device.

As the write may well be many blocks, we trying writing each
block individually and only log the ones which fail.

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