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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: Sage Weil <sage@newdream.net>
This commit is contained in:
Sage Weil 2011-06-03 09:37:09 -07:00
parent 70b666c3b4
commit 2584547230
1 changed files with 10 additions and 5 deletions
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15
net/ceph/osd_client.c
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@ -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;
}