This commit introduced a bug:
4634246d rbd: consolidate rbd_do_op() calls
When a read request is being issued, the snapshot context provided
isn't needed. But that snap context pointer was acquired in
rbd_rq_fn() and it carries with it a reference to that structure.
So before discarding it, the reference needs to be dropped.
Signed-off-by: Alex Elder <elder@xxxxxxxxxxx>
---
drivers/block/rbd.c | 1 +
1 file changed, 1 insertion(+)
diff --git a/drivers/block/rbd.c b/drivers/block/rbd.c
index 835153e..b86f5e5 100644
--- a/drivers/block/rbd.c
+++ b/drivers/block/rbd.c
@@ -1333,6 +1333,7 @@ static int rbd_do_op(struct request *rq,
} else {
opcode = CEPH_OSD_OP_READ;
flags = CEPH_OSD_FLAG_READ;
+ ceph_put_snap_context(snapc);
snapc = NULL;
snapid = rbd_dev->spec->snap_id;
payload_len = 0;
--
1.7.9.5
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