rbd: use GFP_NOIO for parent stat and data requests
rbd_img_obj_exists_submit() and rbd_img_obj_parent_read_full() are on the writeback path for cloned images -- we attempt a stat on the parent object to see if it exists and potentially read it in to call copyup. GFP_NOIO should be used instead of GFP_KERNEL here. Cc: stable@vger.kernel.org Link: http://tracker.ceph.com/issues/22014 Signed-off-by: Ilya Dryomov <idryomov@gmail.com> Reviewed-by: David Disseldorp <ddiss@suse.de>
This commit is contained in:
parent
39dae59d66
commit
1e37f2f846
|
@ -2692,7 +2692,7 @@ static int rbd_img_obj_parent_read_full(struct rbd_obj_request *obj_request)
|
|||
* from the parent.
|
||||
*/
|
||||
page_count = (u32)calc_pages_for(0, length);
|
||||
pages = ceph_alloc_page_vector(page_count, GFP_KERNEL);
|
||||
pages = ceph_alloc_page_vector(page_count, GFP_NOIO);
|
||||
if (IS_ERR(pages)) {
|
||||
result = PTR_ERR(pages);
|
||||
pages = NULL;
|
||||
|
@ -2827,7 +2827,7 @@ static int rbd_img_obj_exists_submit(struct rbd_obj_request *obj_request)
|
|||
*/
|
||||
size = sizeof (__le64) + sizeof (__le32) + sizeof (__le32);
|
||||
page_count = (u32)calc_pages_for(0, size);
|
||||
pages = ceph_alloc_page_vector(page_count, GFP_KERNEL);
|
||||
pages = ceph_alloc_page_vector(page_count, GFP_NOIO);
|
||||
if (IS_ERR(pages)) {
|
||||
ret = PTR_ERR(pages);
|
||||
goto fail_stat_request;
|
||||
|
|
Loading…
Reference in New Issue