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| author | Sage Weil <sage@newdream.net> | 2009-10-08 22:22:37 -0700 |
|---|---|---|
| committer | Sage Weil <sage@newdream.net> | 2009-10-09 11:58:11 -0700 |
| commit | 991abb6ecfc8edf9863aa6a3f43249e63f9d4d4e (patch) | |
| tree | 19484fb1965b1ee2cc61a5e7256d3a5aaba4c5fe /fs/ceph/osdmap.c | |
| parent | 0ba6478df7c6bef0f4b2625554545f941f89fb97 (diff) | |
| download | op-kernel-dev-991abb6ecfc8edf9863aa6a3f43249e63f9d4d4e.zip op-kernel-dev-991abb6ecfc8edf9863aa6a3f43249e63f9d4d4e.tar.gz | |
ceph: fail gracefully on corrupt osdmap (bad pg_temp mapping)
Return an error and report a corrupt map instead of crying BUG().
Signed-off-by: Sage Weil <sage@newdream.net>
Diffstat (limited to 'fs/ceph/osdmap.c')
| -rw-r--r-- | fs/ceph/osdmap.c | 15 |
1 files changed, 10 insertions, 5 deletions
diff --git a/fs/ceph/osdmap.c b/fs/ceph/osdmap.c index e38fe63..342e5f8 100644 --- a/fs/ceph/osdmap.c +++ b/fs/ceph/osdmap.c @@ -366,8 +366,8 @@ static int osdmap_set_max_osd(struct ceph_osdmap *map, int max) /* * Insert a new pg_temp mapping */ -static void __insert_pg_mapping(struct ceph_pg_mapping *new, - struct rb_root *root) +static int __insert_pg_mapping(struct ceph_pg_mapping *new, + struct rb_root *root) { struct rb_node **p = &root->rb_node; struct rb_node *parent = NULL; @@ -381,11 +381,12 @@ static void __insert_pg_mapping(struct ceph_pg_mapping *new, else if (new->pgid > pg->pgid) p = &(*p)->rb_right; else - BUG(); + return -EEXIST; } rb_link_node(&new->node, parent, p); rb_insert_color(&new->node, root); + return 0; } /* @@ -481,7 +482,9 @@ struct ceph_osdmap *osdmap_decode(void **p, void *end) for (j = 0; j < n; j++) ceph_decode_32(p, pg->osds[j]); - __insert_pg_mapping(pg, &map->pg_temp); + err = __insert_pg_mapping(pg, &map->pg_temp); + if (err) + goto bad; dout(" added pg_temp %llx len %d\n", pgid, len); } @@ -681,7 +684,9 @@ struct ceph_osdmap *osdmap_apply_incremental(void **p, void *end, pg->len = pglen; for (j = 0; j < len; j++) ceph_decode_32(p, pg->osds[j]); - __insert_pg_mapping(pg, &map->pg_temp); + err = __insert_pg_mapping(pg, &map->pg_temp); + if (err) + goto bad; dout(" added pg_temp %llx len %d\n", pgid, pglen); } } |
