From mboxrd@z Thu Jan 1 00:00:00 1970 From: SF Markus Elfring Date: Mon, 12 Sep 2016 19:18:54 +0000 Subject: [PATCH 31/47] block-rbd: Fix three jump targets in rbd_img_obj_parent_read_full() Message-Id: <974443eb-d84c-a1e6-833b-675bf8d041ba@users.sourceforge.net> List-Id: References: <566ABCD9.1060404@users.sourceforge.net> <57806eb1-10ed-582e-72d0-2975e1ee967a@users.sourceforge.net> In-Reply-To: <57806eb1-10ed-582e-72d0-2975e1ee967a@users.sourceforge.net> MIME-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit To: ceph-devel@vger.kernel.org, Alex Elder , Ilya Dryomov , Sage Weil Cc: LKML , kernel-janitors@vger.kernel.org, Julia Lawall From: Markus Elfring Date: Mon, 12 Sep 2016 19:48:46 +0200 * Adjust jump targets according to the current Linux coding style convention. * Delete two duplicate checks then at the end. Signed-off-by: Markus Elfring --- I find that this function implementation needs another close look. It seems that four lines can not be executed according to the shown control flow at the moment. How do you think about to avoid "dead" source code there anyhow? drivers/block/rbd.c | 16 ++++++++-------- 1 file changed, 8 insertions(+), 8 deletions(-) diff --git a/drivers/block/rbd.c b/drivers/block/rbd.c index 7d5f7b9..1b8a8c5 100644 --- a/drivers/block/rbd.c +++ b/drivers/block/rbd.c @@ -2789,18 +2789,18 @@ static int rbd_img_obj_parent_read_full(struct rbd_obj_request *obj_request) if (IS_ERR(pages)) { result = PTR_ERR(pages); pages = NULL; - goto out_err; + goto status_indication; } result = -ENOMEM; parent_request = rbd_parent_request_create(obj_request, img_offset, length); if (!parent_request) - goto out_err; + goto release_page_vector; result = rbd_img_request_fill(parent_request, OBJ_REQUEST_PAGES, pages); if (result) - goto out_err; + goto put_request; parent_request->copyup_pages = pages; parent_request->copyup_page_count = page_count; @@ -2813,11 +2813,11 @@ static int rbd_img_obj_parent_read_full(struct rbd_obj_request *obj_request) parent_request->copyup_page_count = 0; parent_request->obj_request = NULL; rbd_obj_request_put(obj_request); -out_err: - if (pages) - ceph_release_page_vector(pages, page_count); - if (parent_request) - rbd_img_request_put(parent_request); + put_request: + rbd_img_request_put(parent_request); + release_page_vector: + ceph_release_page_vector(pages, page_count); + status_indication: obj_request->result = result; obj_request->xferred = 0; obj_request_done_set(obj_request); -- 2.10.0