From: NeilBrown <neilb@suse.de>
Date: Fri, 6 Jan 2006 08:20:25 +0000 (-0800)
Subject: [PATCH] md: support check-without-repair of raid10 arrays
X-Git-Tag: v2.6.16-rc1~936^2~37
X-Git-Url: https://err.no/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=18f08819f42b647783e4f6ea99141623881bf182;p=linux-2.6

[PATCH] md: support check-without-repair of raid10 arrays

Also keep count on the number of errors found.

Signed-off-by: Neil Brown <neilb@suse.de>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
---

diff --git a/drivers/md/raid10.c b/drivers/md/raid10.c
index 8f58a447d9..1fa70c34b7 100644
--- a/drivers/md/raid10.c
+++ b/drivers/md/raid10.c
@@ -1206,6 +1206,10 @@ static void sync_request_write(mddev_t *mddev, r10bio_t *r10_bio)
 				break;
 		if (j == vcnt)
 			continue;
+		mddev->resync_mismatches += r10_bio->sectors;
+		if (test_bit(MD_RECOVERY_CHECK, &mddev->recovery))
+			/* Don't fix anything. */
+			continue;
 		/* Ok, we need to write this bio
 		 * First we need to fixup bv_offset, bv_len and
 		 * bi_vecs, as the read request might have corrupted these