[patch 39/59] md: make repair actually work for raid1.

[Chris Wright]

-stable review patch.  If anyone has any objections, please let us know.
------------------

From: NeilBrown <neilb@xxxxxxx>

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@xxxxxxx>
Signed-off-by: Chris Wright <chrisw@xxxxxxxxxxxx>
---
 drivers/md/raid1.c |    5 +++++
 1 file changed, 5 insertions(+)

--- linux-2.6.19.2.orig/drivers/md/raid1.c
+++ linux-2.6.19.2/drivers/md/raid1.c
@@ -1266,6 +1266,11 @@ static void sync_request_write(mddev_t *
 					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);
+
 				}
 			}
 	}

--
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