ceph: fix pg_mapping leak on pg_temp updates
Free the ceph_pg_mapping structs when they are removed from the pg_temp
rbtree. Also fix a leak in the __insert_pg_mapping() error path.
Signed-off-by: Sage Weil <sage@newdream.net>
diff --git a/fs/ceph/osdmap.c b/fs/ceph/osdmap.c
index 277f8b3..416d46a 100644
--- a/fs/ceph/osdmap.c
+++ b/fs/ceph/osdmap.c
@@ -831,12 +831,13 @@
/* remove any? */
while (rbp && pgid_cmp(rb_entry(rbp, struct ceph_pg_mapping,
node)->pgid, pgid) <= 0) {
- struct rb_node *cur = rbp;
+ struct ceph_pg_mapping *cur =
+ rb_entry(rbp, struct ceph_pg_mapping, node);
+
rbp = rb_next(rbp);
- dout(" removed pg_temp %llx\n",
- *(u64 *)&rb_entry(cur, struct ceph_pg_mapping,
- node)->pgid);
- rb_erase(cur, &map->pg_temp);
+ dout(" removed pg_temp %llx\n", *(u64 *)&cur->pgid);
+ rb_erase(&cur->node, &map->pg_temp);
+ kfree(cur);
}
if (pglen) {
@@ -852,19 +853,22 @@
for (j = 0; j < pglen; j++)
pg->osds[j] = ceph_decode_32(p);
err = __insert_pg_mapping(pg, &map->pg_temp);
- if (err)
+ if (err) {
+ kfree(pg);
goto bad;
+ }
dout(" added pg_temp %llx len %d\n", *(u64 *)&pgid,
pglen);
}
}
while (rbp) {
- struct rb_node *cur = rbp;
+ struct ceph_pg_mapping *cur =
+ rb_entry(rbp, struct ceph_pg_mapping, node);
+
rbp = rb_next(rbp);
- dout(" removed pg_temp %llx\n",
- *(u64 *)&rb_entry(cur, struct ceph_pg_mapping,
- node)->pgid);
- rb_erase(cur, &map->pg_temp);
+ dout(" removed pg_temp %llx\n", *(u64 *)&cur->pgid);
+ rb_erase(&cur->node, &map->pg_temp);
+ kfree(cur);
}
/* ignore the rest */