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Commit 25845472 authored by Sage Weil's avatar Sage Weil
Browse files

ceph: fix sync vs canceled write 



If we cancel a write, trigger the safe completions to prevent a sync from
blocking indefinitely in ceph_osdc_sync().

Signed-off-by: default avatarSage Weil <sage@newdream.net>
parent 70b666c3

net/ceph/osd_client.c

+10 −5
Original line number Diff line number Diff line
@@ -1144,6 +1144,13 @@ static void handle_osds_timeout(struct work_struct *work) 
			      round_jiffies_relative(delay));

}



static void complete_request(struct ceph_osd_request *req)

{

	if (req->r_safe_callback)

		req->r_safe_callback(req, NULL);

	complete_all(&req->r_safe_completion);  /* fsync waiter */

}



/*

 * handle osd op reply.  either call the callback if it is specified,

 * or do the completion to wake up the waiting thread.
@@ -1226,11 +1233,8 @@ static void handle_reply(struct ceph_osd_client *osdc, struct ceph_msg *msg, 
	else

		complete_all(&req->r_completion);



	if (flags & CEPH_OSD_FLAG_ONDISK) {

		if (req->r_safe_callback)

			req->r_safe_callback(req, msg);

		complete_all(&req->r_safe_completion);  /* fsync waiter */

	}

	if (flags & CEPH_OSD_FLAG_ONDISK)

		complete_request(req);



done:

	dout("req=%p req->r_linger=%d\n", req, req->r_linger);
@@ -1732,6 +1736,7 @@ int ceph_osdc_wait_request(struct ceph_osd_client *osdc, 
		__cancel_request(req);

		__unregister_request(osdc, req);

		mutex_unlock(&osdc->request_mutex);

		complete_request(req);

		dout("wait_request tid %llu canceled/timed out\n", req->r_tid);

		return rc;

	}