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authorNeilBrown <neilb@suse.de>2006-06-26 00:27:50 -0700
committerLinus Torvalds <torvalds@g5.osdl.org>2006-06-26 09:58:39 -0700
commit8838832830d2c6c28ae2db93188ae90652eb7fc2 (patch)
treed17a7027161352ea1893236dc6ea5bd309f6ceb4 /drivers/md/raid10.c
parentce25c31bdd3b39266debd86a7732007e05983a67 (diff)
downloadblackbird-op-linux-8838832830d2c6c28ae2db93188ae90652eb7fc2.tar.gz
blackbird-op-linux-8838832830d2c6c28ae2db93188ae90652eb7fc2.zip
[PATCH] md: Calculate correct array size for raid10 in new offset mode
The size calculation made assumtion which the new offset mode didn't follow. This gets the size right in all cases. Signed-off-by: Neil Brown <neilb@suse.de> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
Diffstat (limited to 'drivers/md/raid10.c')
-rw-r--r--drivers/md/raid10.c8
1 files changed, 7 insertions, 1 deletions
diff --git a/drivers/md/raid10.c b/drivers/md/raid10.c
index 4db34edfd87f..7f636283a1ba 100644
--- a/drivers/md/raid10.c
+++ b/drivers/md/raid10.c
@@ -2060,7 +2060,13 @@ static int run(mddev_t *mddev)
/*
* Ok, everything is just fine now
*/
- size = conf->stride * conf->raid_disks;
+ if (conf->far_offset) {
+ size = mddev->size >> (conf->chunk_shift-1);
+ size *= conf->raid_disks;
+ size <<= conf->chunk_shift;
+ sector_div(size, conf->far_copies);
+ } else
+ size = conf->stride * conf->raid_disks;
sector_div(size, conf->near_copies);
mddev->array_size = size/2;
mddev->resync_max_sectors = size;
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