Commit 89e5c8b5 authored by NeilBrown's avatar NeilBrown Committed by Linus Torvalds
Browse files

[PATCH] md: Make sure QUEUE_FLAG_CLUSTER is set properly for md. 



This flag should be set for a virtual device iff it is set for all underlying
devices.

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 a22c96c7

block/ll_rw_blk.c

+2 −0
Original line number Diff line number Diff line
@@ -785,6 +785,8 @@ void blk_queue_stack_limits(request_queue_t *t, request_queue_t *b) 
	t->max_hw_segments = min(t->max_hw_segments,b->max_hw_segments);

	t->max_segment_size = min(t->max_segment_size,b->max_segment_size);

	t->hardsect_size = max(t->hardsect_size,b->hardsect_size);

	if (!test_bit(QUEUE_FLAG_CLUSTER, &b->queue_flags))

		clear_bit(QUEUE_FLAG_CLUSTER, &t->queue_flags);

}



EXPORT_SYMBOL(blk_queue_stack_limits);

drivers/md/md.c

+1 −0
Original line number Diff line number Diff line
@@ -266,6 +266,7 @@ static mddev_t * mddev_find(dev_t unit) 
		kfree(new);

		return NULL;

	}

	set_bit(QUEUE_FLAG_CLUSTER, &new->queue->queue_flags);



	blk_queue_make_request(new->queue, md_fail_request);