ceph: put unused osd connections on lru

Instead of removing osd connection immediately when the
requests list is empty, put the osd connection on an lru.
Only if that osd has not been used for more than a specified
time, will it be removed.

Signed-off-by: Yehuda Sadeh <yehuda@hq.newdream.net>
Signed-off-by: Sage Weil <sage@newdream.net>

1 files changed, 2 insertions, 0 deletions

diff --git a/fs/ceph/super.h b/fs/ceph/super.h
index 770f7b507fce..3930fb685f0b 100644
--- a/fs/ceph/super.h
+++ b/fs/ceph/super.h
@@ -53,6 +53,7 @@ struct ceph_mount_args {
         struct ceph_entity_addr *mon_addr;
         int flags;
         int mount_timeout;
+        int osd_idle_ttl;
         int caps_wanted_delay_min, caps_wanted_delay_max;
         struct ceph_fsid fsid;
         struct ceph_entity_addr my_addr;
@@ -71,6 +72,7 @@ struct ceph_mount_args {
  * defaults
  */
 #define CEPH_MOUNT_TIMEOUT_DEFAULT  60
+#define CEPH_OSD_IDLE_TTL_DEFAULT    60
 #define CEPH_MOUNT_RSIZE_DEFAULT    (512*1024) /* readahead */
 
 #define CEPH_MSG_MAX_FRONT_LEN  (16*1024*1024)