libceph: fix safe completion
handle_reply() calls complete_request() only if the first OSD reply
has ONDISK flag.
Signed-off-by: Yan, Zheng <zheng.z.yan@intel.com>
Reviewed-by: Sage Weil <sage@inktank.com>
diff --git a/include/linux/ceph/osd_client.h b/include/linux/ceph/osd_client.h
index 186db0b..ce6df39 100644
--- a/include/linux/ceph/osd_client.h
+++ b/include/linux/ceph/osd_client.h
@@ -145,7 +145,6 @@
s32 r_reply_op_result[CEPH_OSD_MAX_OP];
int r_got_reply;
int r_linger;
- int r_completed;
struct ceph_osd_client *r_osdc;
struct kref r_kref;
diff --git a/net/ceph/osd_client.c b/net/ceph/osd_client.c
index 61147fe..3480b05 100644
--- a/net/ceph/osd_client.c
+++ b/net/ceph/osd_client.c
@@ -1522,6 +1522,8 @@
for (i = 0; i < numops; i++)
req->r_reply_op_result[i] = ceph_decode_32(&p);
+ already_completed = req->r_got_reply;
+
if (!req->r_got_reply) {
req->r_result = result;
@@ -1552,16 +1554,14 @@
((flags & CEPH_OSD_FLAG_WRITE) == 0))
__unregister_request(osdc, req);
- already_completed = req->r_completed;
- req->r_completed = 1;
mutex_unlock(&osdc->request_mutex);
- if (already_completed)
- goto done;
- if (req->r_callback)
- req->r_callback(req, msg);
- else
- complete_all(&req->r_completion);
+ if (!already_completed) {
+ if (req->r_callback)
+ req->r_callback(req, msg);
+ else
+ complete_all(&req->r_completion);
+ }
if (flags & CEPH_OSD_FLAG_ONDISK)
complete_request(req);
@@ -2121,7 +2121,6 @@
__register_request(osdc, req);
req->r_sent = 0;
req->r_got_reply = 0;
- req->r_completed = 0;
rc = __map_request(osdc, req, 0);
if (rc < 0) {
if (nofail) {