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authorJosh Durgin <josh.durgin@inktank.com>2014-04-07 16:54:10 -0700
committerIlya Dryomov <idryomov@redhat.com>2014-10-14 21:03:33 +0400
commitd0265de7c358d71a494dcd1ee28206b32754bb0f (patch)
tree47ddd34a1db3d1f6adeea09624733f1301ab10a8 /drivers/block/rbd.c
parentbef95455a44e2533fcea376740bb1a5cbd71269f (diff)
downloadlinux-d0265de7c358d71a494dcd1ee28206b32754bb0f.tar.gz
rbd: tolerate -ENOENT for discard operations
Discard may try to delete an object from a non-layered image that does not exist.
If this occurs, the image already has no data in that range, so change the
result to success.

Signed-off-by: Josh Durgin <josh.durgin@inktank.com>
Diffstat (limited to 'drivers/block/rbd.c')
-rw-r--r--drivers/block/rbd.c3
1 files changed, 3 insertions, 0 deletions
diff --git a/drivers/block/rbd.c b/drivers/block/rbd.c
index de1520ccc0d4..835a96a09a6b 100644
--- a/drivers/block/rbd.c
+++ b/drivers/block/rbd.c
@@ -1767,6 +1767,9 @@ static void rbd_osd_discard_callback(struct rbd_obj_request *obj_request)
 	 * it to our originally-requested length.
 	 */
 	obj_request->xferred = obj_request->length;
+	/* discarding a non-existent object is not a problem */
+	if (obj_request->result == -ENOENT)
+		obj_request->result = 0;
 	obj_request_done_set(obj_request);
 }