From: NeilBrown <neilb@suse.de>
Date: Thu, 25 Jan 2007 04:35:25 +0000 (+1100)
Subject: [PATCH] md: make 'repair' actually work for raid1.
X-Git-Tag: v2.6.19.3~21
X-Git-Url: https://git.karo-electronics.de/?a=commitdiff_plain;h=d53c44cb93ba219bc26fa2f7ddd98bdd4d219c9c;p=karo-tx-linux.git

[PATCH] md: make 'repair' actually work for raid1.

When 'repair' finds a block that is different one the various
parts of the mirror. it is meant to write a chosen good version
to the others.  However it currently writes out the original data
to each. The memcpy to make all the data the same is missing.

Signed-off-by: Neil Brown <neilb@suse.de>
Signed-off-by: Chris Wright <chrisw@sous-sol.org>
---

diff --git a/drivers/md/raid1.c b/drivers/md/raid1.c
index 99d453fd7162..77b19b4d0a11 100644
--- a/drivers/md/raid1.c
+++ b/drivers/md/raid1.c
@@ -1266,6 +1266,11 @@ static void sync_request_write(mddev_t *mddev, r1bio_t *r1_bio)
 					sbio->bi_sector = r1_bio->sector +
 						conf->mirrors[i].rdev->data_offset;
 					sbio->bi_bdev = conf->mirrors[i].rdev->bdev;
+					for (j = 0; j < vcnt ; j++)
+						memcpy(page_address(sbio->bi_io_vec[j].bv_page),
+						       page_address(pbio->bi_io_vec[j].bv_page),
+						       PAGE_SIZE);
+
 				}
 			}
 	}