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authorArtem Bityutskiy <Artem.Bityutskiy@nokia.com>2010-08-08 12:29:58 +0300
committerArtem Bityutskiy <Artem.Bityutskiy@nokia.com>2010-08-30 10:19:07 +0300
commit66576833f5396af34c52160b16d7b8573199282a (patch)
tree557944b9b8088fab39cdf426be299300530ec79f /fs/ubifs/gc.c
parentab87118d717467cbcd9648692c2a9708d55193bc (diff)
downloadlinux-66576833f5396af34c52160b16d7b8573199282a.tar.bz2
UBIFS: improve assertion in node comparison functions
Improve assertions in gc.c in the comparison functions for 'list_sort()': check key types _and_ node types. Signed-off-by: Artem Bityutskiy <Artem.Bityutskiy@nokia.com>
Diffstat (limited to 'fs/ubifs/gc.c')
-rw-r--r--fs/ubifs/gc.c11
1 files changed, 11 insertions, 0 deletions
diff --git a/fs/ubifs/gc.c b/fs/ubifs/gc.c
index 27815bb91125..dafef3d195d3 100644
--- a/fs/ubifs/gc.c
+++ b/fs/ubifs/gc.c
@@ -127,8 +127,11 @@ int data_nodes_cmp(void *priv, struct list_head *a, struct list_head *b)
cond_resched();
sa = list_entry(a, struct ubifs_scan_node, list);
sb = list_entry(b, struct ubifs_scan_node, list);
+
ubifs_assert(key_type(c, &sa->key) == UBIFS_DATA_KEY);
ubifs_assert(key_type(c, &sb->key) == UBIFS_DATA_KEY);
+ ubifs_assert(sa->type == UBIFS_DATA_NODE);
+ ubifs_assert(sb->type == UBIFS_DATA_NODE);
inuma = key_inum(c, &sa->key);
inumb = key_inum(c, &sb->key);
@@ -164,6 +167,9 @@ int nondata_nodes_cmp(void *priv, struct list_head *a, struct list_head *b)
cond_resched();
sa = list_entry(a, struct ubifs_scan_node, list);
sb = list_entry(b, struct ubifs_scan_node, list);
+
+ ubifs_assert(key_type(c, &sa->key) != UBIFS_DATA_KEY &&
+ key_type(c, &sb->key) != UBIFS_DATA_KEY);
ubifs_assert(sa->type != UBIFS_DATA_NODE &&
sb->type != UBIFS_DATA_NODE);
@@ -176,10 +182,15 @@ int nondata_nodes_cmp(void *priv, struct list_head *a, struct list_head *b)
if (sb->type == UBIFS_INO_NODE)
return 1;
+ ubifs_assert(key_type(c, &sa->key) == UBIFS_DENT_KEY ||
+ key_type(c, &sa->key) == UBIFS_XENT_KEY);
+ ubifs_assert(key_type(c, &sb->key) == UBIFS_DENT_KEY ||
+ key_type(c, &sb->key) == UBIFS_XENT_KEY);
ubifs_assert(sa->type == UBIFS_DENT_NODE ||
sa->type == UBIFS_XENT_NODE);
ubifs_assert(sb->type == UBIFS_DENT_NODE ||
sb->type == UBIFS_XENT_NODE);
+
inuma = key_inum(c, &sa->key);
inumb = key_inum(c, &sb->key);