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authorNeilBrown <neilb@suse.de>2005-11-08 21:39:26 -0800
committerLinus Torvalds <torvalds@g5.osdl.org>2005-11-09 07:56:37 -0800
commit9d88883e68f404d5581bd391713ceef470ea53a9 (patch)
tree09217a737ca91fb1d105df601741a61e141d4946 /include/linux/raid
parent24dd469d728dae07f40c5d79ea6dedd38cdf1a30 (diff)
[PATCH] md: teach raid5 the difference between 'check' and 'repair'.
With this, raid5 can be asked to check parity without repairing it. It also keeps a count of the number of incorrect parity blocks found (mismatches) and reports them through sysfs. Signed-off-by: Neil Brown <neilb@suse.de> Cc: Greg KH <greg@kroah.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
Diffstat (limited to 'include/linux/raid')
-rw-r--r--include/linux/raid/md_k.h4
1 files changed, 4 insertions, 0 deletions
diff --git a/include/linux/raid/md_k.h b/include/linux/raid/md_k.h
index efd04dca0abd..cb8b44d1588b 100644
--- a/include/linux/raid/md_k.h
+++ b/include/linux/raid/md_k.h
@@ -175,6 +175,10 @@ struct mddev_s
sector_t resync_mark_cnt;/* blocks written at resync_mark */
sector_t resync_max_sectors; /* may be set by personality */
+
+ sector_t resync_mismatches; /* count of sectors where
+ * parity/replica mismatch found
+ */
/* recovery/resync flags
* NEEDED: we might need to start a resync/recover
* RUNNING: a thread is running, or about to be started