Commit 88388328 authored by NeilBrown's avatar NeilBrown Committed by Linus Torvalds
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[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: default avatarNeil Brown <neilb@suse.de>
Signed-off-by: default avatarAndrew Morton <akpm@osdl.org>
Signed-off-by: default avatarLinus Torvalds <torvalds@osdl.org>
parent ce25c31b

drivers/md/raid10.c

+7 −1
Original line number Diff line number Diff line
@@ -2060,6 +2060,12 @@ static int run(mddev_t *mddev) 
	/*

	 * Ok, everything is just fine now

	 */

	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;