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-rw-r--r--fs/ceph/mon_client.c38
1 files changed, 38 insertions, 0 deletions
diff --git a/fs/ceph/mon_client.c b/fs/ceph/mon_client.c
index e6e954cac6b9..61263c99c6a8 100644
--- a/fs/ceph/mon_client.c
+++ b/fs/ceph/mon_client.c
@@ -527,6 +527,40 @@ static void delayed_work(struct work_struct *work)
mutex_unlock(&monc->mutex);
}
+/*
+ * On startup, we build a temporary monmap populated with the IPs
+ * provided by mount(2).
+ */
+static int build_initial_monmap(struct ceph_mon_client *monc)
+{
+ struct ceph_mount_args *args = monc->client->mount_args;
+ struct ceph_entity_addr *mon_addr = args->mon_addr;
+ int num_mon = args->num_mon;
+ int i;
+
+ /* build initial monmap */
+ monc->monmap = kzalloc(sizeof(*monc->monmap) +
+ num_mon*sizeof(monc->monmap->mon_inst[0]),
+ GFP_KERNEL);
+ if (!monc->monmap)
+ return -ENOMEM;
+ for (i = 0; i < num_mon; i++) {
+ monc->monmap->mon_inst[i].addr = mon_addr[i];
+ monc->monmap->mon_inst[i].addr.erank = 0;
+ monc->monmap->mon_inst[i].addr.nonce = 0;
+ monc->monmap->mon_inst[i].name.type =
+ CEPH_ENTITY_TYPE_MON;
+ monc->monmap->mon_inst[i].name.num = cpu_to_le64(i);
+ }
+ monc->monmap->num_mon = num_mon;
+
+ /* release addr memory */
+ kfree(args->mon_addr);
+ args->mon_addr = NULL;
+ args->num_mon = 0;
+ return 0;
+}
+
int ceph_monc_init(struct ceph_mon_client *monc, struct ceph_client *cl)
{
int err = 0;
@@ -537,6 +571,10 @@ int ceph_monc_init(struct ceph_mon_client *monc, struct ceph_client *cl)
monc->monmap = NULL;
mutex_init(&monc->mutex);
+ err = build_initial_monmap(monc);
+ if (err)
+ goto out;
+
monc->con = NULL;
/* msg pools */