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| author | Ilya Dryomov <idryomov@gmail.com> | 2015-11-27 19:23:24 +0100 |
|---|---|---|
| committer | Ilya Dryomov <idryomov@gmail.com> | 2015-12-04 14:29:18 +0100 |
| commit | 70b16db86f564977df074072143284aec2cb1162 (patch) | |
| tree | eb4418d39ce759952bf36e5536efbe06e94134a9 /drivers/block | |
| parent | Linux 4.4-rc3 (diff) | |
| download | linux-70b16db86f564977df074072143284aec2cb1162.tar.xz linux-70b16db86f564977df074072143284aec2cb1162.zip | |
rbd: don't put snap_context twice in rbd_queue_workfn()
Commit 4e752f0ab0e8 ("rbd: access snapshot context and mapping size
safely") moved ceph_get_snap_context() out of rbd_img_request_create()
and into rbd_queue_workfn(), adding a ceph_put_snap_context() to the
error path in rbd_queue_workfn(). However, rbd_img_request_create()
consumes a ref on snapc, so calling ceph_put_snap_context() after
a successful rbd_img_request_create() leads to an extra put. Fix it.
Cc: stable@vger.kernel.org # 3.18+
Signed-off-by: Ilya Dryomov <idryomov@gmail.com>
Reviewed-by: Josh Durgin <jdurgin@redhat.com>
Diffstat (limited to 'drivers/block')
| -rw-r--r-- | drivers/block/rbd.c | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/drivers/block/rbd.c b/drivers/block/rbd.c index 235708c7c46e..81ea69fee7ca 100644 --- a/drivers/block/rbd.c +++ b/drivers/block/rbd.c @@ -3442,6 +3442,7 @@ static void rbd_queue_workfn(struct work_struct *work) goto err_rq; } img_request->rq = rq; + snapc = NULL; /* img_request consumes a ref */ if (op_type == OBJ_OP_DISCARD) result = rbd_img_request_fill(img_request, OBJ_REQUEST_NODATA, |