Re: RAID10 overwrites partition tables

[Neil Brown]

On Friday November 26, member@xxxxxxxxxxxxxxxxxxxxxxx wrote:
>    	 mdadm --level 10 does not seem to respect disk partition boundaries.

Hmmm, yes, thanks.

I think the following should fix the bug.  It only affects 'resync'
not normal IO or recovery (after a drive has failed).

(I only tested it on whole-drives....)

Please let me know if it helps.

NeilBrown


 ----------- Diffstat output ------------
 ./drivers/md/raid10.c |    1 +
 1 files changed, 1 insertion(+)

diff ./drivers/md/raid10.c~current~ ./drivers/md/raid10.c
--- ./drivers/md/raid10.c~current~	2004-11-16 16:33:50.000000000 +1100
+++ ./drivers/md/raid10.c	2004-11-27 11:00:06.000000000 +1100
@@ -1150,6 +1150,7 @@ static void sync_request_write(mddev_t *
 		md_sync_acct(conf->mirrors[d].rdev->bdev, tbio->bi_size >> 9);
 
 		tbio->bi_sector += conf->mirrors[d].rdev->data_offset;
+		tbio->bi_bdev = conf->mirrors[d].rdev->bdev;
 		generic_make_request(tbio);
 	}
 
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