From a167f663243662aa9153c01086580a11cde9ffdc Mon Sep 17 00:00:00 2001 From: NeilBrown Date: Tue, 26 Oct 2010 18:31:13 +1100 Subject: md: use separate bio pool for each md device. bio_clone and bio_alloc allocate from a common bio pool. If an md device is stacked with other devices that use this pool, or under something like swap which uses the pool, then the multiple calls on the pool can cause deadlocks. So allocate a local bio pool for each md array and use that rather than the common pool. This pool is used both for regular IO and metadata updates. Signed-off-by: NeilBrown --- drivers/md/faulty.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) (limited to 'drivers/md/faulty.c') diff --git a/drivers/md/faulty.c b/drivers/md/faulty.c index 1a8987884614..339fdc670751 100644 --- a/drivers/md/faulty.c +++ b/drivers/md/faulty.c @@ -210,7 +210,7 @@ static int make_request(mddev_t *mddev, struct bio *bio) } } if (failit) { - struct bio *b = bio_clone(bio, GFP_NOIO); + struct bio *b = bio_clone_mddev(bio, GFP_NOIO, mddev); b->bi_bdev = conf->rdev->bdev; b->bi_private = bio; b->bi_end_io = faulty_fail; -- cgit v1.2.3-59-g8ed1b