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

Chris Wright
2007-02-03T02:42:00Z

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

From: NeilBrown <neilb@suse.de>

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>
---
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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