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authorYan, Zheng <zheng.z.yan@intel.com>2013-11-22 10:48:37 +0400
committerYan, Zheng <zheng.z.yan@intel.com>2014-01-21 09:29:33 +0400
commit186e4f7a4b1883f3f46aa15366c0bcebc28fdda7 (patch)
tree304069ce2e1b36f7935cd4e33dc1d692843df7c3 /fs/ceph
parent9215aeea622fec7ca8123c6bd6f03a1753e2b0b3 (diff)
downloadlinux-186e4f7a4b1883f3f46aa15366c0bcebc28fdda7.tar.xz
ceph: handle session flush message
Signed-off-by: Yan, Zheng <zheng.z.yan@intel.com>
Diffstat (limited to 'fs/ceph')
-rw-r--r--fs/ceph/mds_client.c19
-rw-r--r--fs/ceph/strings.c2
2 files changed, 21 insertions, 0 deletions
diff --git a/fs/ceph/mds_client.c b/fs/ceph/mds_client.c
index 1fd655ac806a..7c00dd530bd1 100644
--- a/fs/ceph/mds_client.c
+++ b/fs/ceph/mds_client.c
@@ -1137,6 +1137,21 @@ static int send_renew_caps(struct ceph_mds_client *mdsc,
return 0;
}
+static int send_flushmsg_ack(struct ceph_mds_client *mdsc,
+ struct ceph_mds_session *session, u64 seq)
+{
+ struct ceph_msg *msg;
+
+ dout("send_flushmsg_ack to mds%d (%s)s seq %lld\n",
+ session->s_mds, session_state_name(session->s_state), seq);
+ msg = create_session_msg(CEPH_SESSION_FLUSHMSG_ACK, seq);
+ if (!msg)
+ return -ENOMEM;
+ ceph_con_send(&session->s_con, msg);
+ return 0;
+}
+
+
/*
* Note new cap ttl, and any transition from stale -> not stale (fresh?).
*
@@ -2396,6 +2411,10 @@ static void handle_session(struct ceph_mds_session *session,
trim_caps(mdsc, session, le32_to_cpu(h->max_caps));
break;
+ case CEPH_SESSION_FLUSHMSG:
+ send_flushmsg_ack(mdsc, session, seq);
+ break;
+
default:
pr_err("mdsc_handle_session bad op %d mds%d\n", op, mds);
WARN_ON(1);
diff --git a/fs/ceph/strings.c b/fs/ceph/strings.c
index 89fa4a940a0f..4440f447fd3f 100644
--- a/fs/ceph/strings.c
+++ b/fs/ceph/strings.c
@@ -41,6 +41,8 @@ const char *ceph_session_op_name(int op)
case CEPH_SESSION_RENEWCAPS: return "renewcaps";
case CEPH_SESSION_STALE: return "stale";
case CEPH_SESSION_RECALL_STATE: return "recall_state";
+ case CEPH_SESSION_FLUSHMSG: return "flushmsg";
+ case CEPH_SESSION_FLUSHMSG_ACK: return "flushmsg_ack";
}
return "???";
}