From c2e82414884718ad6ec33a7528606cb07cf55cb4 Mon Sep 17 00:00:00 2001 From: Ilya Dryomov Date: Tue, 13 Sep 2016 20:18:01 +0200 Subject: [PATCH] rbd: mark the original request as done if stat request fails If stat request fails with something other than -ENOENT (which just means that we need to copyup), the original object request is never marked as done and therefore never completed. Fix this by moving the mark done + complete snippet from rbd_img_obj_parent_read_full() into rbd_img_obj_exists_callback(). The former remains covered, as the latter is its only caller (through rbd_img_obj_request_submit()). Signed-off-by: Ilya Dryomov Reviewed-by: Alex Elder Reviewed-by: David Disseldorp --- drivers/block/rbd.c | 28 +++++++++++++++------------- 1 file changed, 15 insertions(+), 13 deletions(-) diff --git a/drivers/block/rbd.c b/drivers/block/rbd.c index fb7f86d..5e55d1c 100644 --- a/drivers/block/rbd.c +++ b/drivers/block/rbd.c @@ -2742,8 +2742,8 @@ out_err: * When the read completes, this page array will be transferred to * the original object request for the copyup operation. * - * If an error occurs, record it as the result of the original - * object request and mark it done so it gets completed. + * If an error occurs, it is recorded as the result of the original + * object request in rbd_img_obj_exists_callback(). */ static int rbd_img_obj_parent_read_full(struct rbd_obj_request *obj_request) { @@ -2813,10 +2813,6 @@ out_err: ceph_release_page_vector(pages, page_count); if (parent_request) rbd_img_request_put(parent_request); - obj_request->result = result; - obj_request->xferred = 0; - obj_request_done_set(obj_request); - return result; } @@ -2868,19 +2864,25 @@ static void rbd_img_obj_exists_callback(struct rbd_obj_request *obj_request) obj_request_existence_set(orig_request, true); } else if (result == -ENOENT) { obj_request_existence_set(orig_request, false); - } else if (result) { - orig_request->result = result; - goto out; + } else { + goto fail_orig_request; } /* * Resubmit the original request now that we have recorded * whether the target object exists. */ - orig_request->result = rbd_img_obj_request_submit(orig_request); -out: - if (orig_request->result) - rbd_obj_request_complete(orig_request); + result = rbd_img_obj_request_submit(orig_request); + if (result) + goto fail_orig_request; + + return; + +fail_orig_request: + orig_request->result = result; + orig_request->xferred = 0; + obj_request_done_set(orig_request); + rbd_obj_request_complete(orig_request); } static int rbd_img_obj_exists_submit(struct rbd_obj_request *obj_request) -- 2.7.4