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authorNeilBrown <neilb@suse.de>2006-03-31 02:31:57 -0800
committerLinus Torvalds <torvalds@g5.osdl.org>2006-03-31 12:19:01 -0800
commit6b1117d50543e2484bee037ec2589fe52492a7e7 (patch)
tree6291a97424ebcc336bb49b00ec13576df76aa447 /drivers
parent39451a73a2d190763ba8a98f486cf23d63d22582 (diff)
downloadop-kernel-dev-6b1117d50543e2484bee037ec2589fe52492a7e7.zip
op-kernel-dev-6b1117d50543e2484bee037ec2589fe52492a7e7.tar.gz
[PATCH] md: Don't clear bits in bitmap when writing to one device fails during recovery
Currently a device failure during recovery leaves bits set in the bitmap. This normally isn't a problem as the offending device will be rejected because of errors. However if device re-adding is being used with non-persistent bitmaps, this can be a problem. Signed-off-by: Neil Brown <neilb@suse.de> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
Diffstat (limited to 'drivers')
-rw-r--r--drivers/md/raid1.c13
1 files changed, 12 insertions, 1 deletions
diff --git a/drivers/md/raid1.c b/drivers/md/raid1.c
index 3cb0872..9b374c9 100644
--- a/drivers/md/raid1.c
+++ b/drivers/md/raid1.c
@@ -1135,8 +1135,19 @@ static int end_sync_write(struct bio *bio, unsigned int bytes_done, int error)
mirror = i;
break;
}
- if (!uptodate)
+ if (!uptodate) {
+ int sync_blocks = 0;
+ sector_t s = r1_bio->sector;
+ long sectors_to_go = r1_bio->sectors;
+ /* make sure these bits doesn't get cleared. */
+ do {
+ bitmap_end_sync(mddev->bitmap, r1_bio->sector,
+ &sync_blocks, 1);
+ s += sync_blocks;
+ sectors_to_go -= sync_blocks;
+ } while (sectors_to_go > 0);
md_error(mddev, conf->mirrors[mirror].rdev);
+ }
update_head_pos(mirror, r1_bio);
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