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rbd: tolerate -ENOENT for discard operations

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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>
This commit is contained in:
Josh Durgin 2014-04-07 16:54:10 -07:00 committed by Ilya Dryomov
parent bef95455a4
commit d0265de7c3
1 changed files with 3 additions and 0 deletions
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3
drivers/block/rbd.c
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@ -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);
}