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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>
This commit is contained in:
Sage Weil 2010-07-20 16:19:56 -07:00
parent 252af52146
commit bc4fdca857
1 changed files with 15 additions and 11 deletions
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26
fs/ceph/osdmap.c
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@ -831,12 +831,13 @@ struct ceph_osdmap *osdmap_apply_incremental(void **p, void *end,
/* 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 @@ struct ceph_osdmap *osdmap_apply_incremental(void **p, void *end,
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 */