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libceph: subscribe to osdmap when cluster is full 

When the cluster is marked full, subscribe to subsequent map updates to
ensure we find out promptly when it is no longer full.  This will prevent
us from spewing ENOSPC for (much) longer than necessary.

Signed-off-by: Sage Weil <sage@newdream.net>
This commit is contained in:
Sage Weil 2011-05-12 09:29:18 -07:00
parent 7662d8ff57
commit cd634fb6ee
1 changed files with 9 additions and 0 deletions
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9
net/ceph/osd_client.c
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@ -1421,6 +1421,15 @@ void ceph_osdc_handle_map(struct ceph_osd_client *osdc, struct ceph_msg *msg)
done:
downgrade_write(&osdc->map_sem);
ceph_monc_got_osdmap(&osdc->client->monc, osdc->osdmap->epoch);
/*
* subscribe to subsequent osdmap updates if full to ensure
* we find out when we are no longer full and stop returning
* ENOSPC.
*/
if (ceph_osdmap_flag(osdc->osdmap, CEPH_OSDMAP_FULL))
ceph_monc_request_next_osdmap(&osdc->client->monc);
send_queued(osdc);
up_read(&osdc->map_sem);
wake_up_all(&osdc->client->auth_wq);