libceph: respect RADOS_BACKOFF backoffs
Signed-off-by: Ilya Dryomov <idryomov@gmail.com>
diff --git a/net/ceph/osdmap.c b/net/ceph/osdmap.c
index 1e2e190..1d87a73 100644
--- a/net/ceph/osdmap.c
+++ b/net/ceph/osdmap.c
@@ -418,6 +418,22 @@
return 0;
}
+int ceph_spg_compare(const struct ceph_spg *lhs, const struct ceph_spg *rhs)
+{
+ int ret;
+
+ ret = ceph_pg_compare(&lhs->pgid, &rhs->pgid);
+ if (ret)
+ return ret;
+
+ if (lhs->shard < rhs->shard)
+ return -1;
+ if (lhs->shard > rhs->shard)
+ return 1;
+
+ return 0;
+}
+
/*
* rbtree of pg_mapping for handling pg_temp (explicit mapping of pgid
* to a set of osds) and primary_temp (explicit primary setting)