Messages in this thread Patch in this message | | | From | Philipp Reisner <> | Subject | [PATCH 5/7] drbd: merge_bvec_fn: properly remap bvm->bi_bdev | Date | Mon, 10 Nov 2014 17:21:13 +0100 |
| |
From: Lars Ellenberg <lars.ellenberg@linbit.com>
This was not noticed for many years. Affects operation if md raid is used a backing device for DRBD.
CC: stable@kernel.org # v3.2+ Signed-off-by: Philipp Reisner <philipp.reisner@linbit.com> Signed-off-by: Lars Ellenberg <lars.ellenberg@linbit.com> --- drivers/block/drbd/drbd_req.c | 1 + 1 file changed, 1 insertion(+)
diff --git a/drivers/block/drbd/drbd_req.c b/drivers/block/drbd/drbd_req.c index 5a01c53..90319b1 100644 --- a/drivers/block/drbd/drbd_req.c +++ b/drivers/block/drbd/drbd_req.c @@ -1545,6 +1545,7 @@ int drbd_merge_bvec(struct request_queue *q, struct bvec_merge_data *bvm, struct struct request_queue * const b = device->ldev->backing_bdev->bd_disk->queue; if (b->merge_bvec_fn) { + bvm->bi_bdev = device->ldev->backing_bdev; backing_limit = b->merge_bvec_fn(b, bvm, bvec); limit = min(limit, backing_limit); } -- 1.9.1
| |