SELinux: Reduce max avtab size to avoid page allocation failures

Reduce MAX_AVTAB_HASH_BITS so that the avtab allocation is an order 2 allocation rather than an order 4 allocation on x86_64. This addresses reports of page allocation failures: http://marc.info/?l=selinux&m=126757230625867&w=2 https://bugzilla.redhat.com/show_bug.cgi?id=570433 Reported-by: Russell Coker <[email protected]> Signed-off-by: Stephen D. Smalley <[email protected]> Acked-by: Eric Paris <[email protected]> Signed-off-by: James Morris <[email protected]>
chewitt · Apr 14, 2010 · 6c9ff10 · 6c9ff10
1 parent 2ba3abd
commit 6c9ff10
Showing 1 changed file with 1 addition and 1 deletion.
diff --git a/security/selinux/ss/avtab.h b/security/selinux/ss/avtab.h
@@ -82,7 +82,7 @@ struct avtab_node *avtab_search_node_next(struct avtab_node *node, int specified
 void avtab_cache_init(void);
 void avtab_cache_destroy(void);
 
-#define MAX_AVTAB_HASH_BITS 13
+#define MAX_AVTAB_HASH_BITS 11
 #define MAX_AVTAB_HASH_BUCKETS (1 << MAX_AVTAB_HASH_BITS)
 #define MAX_AVTAB_HASH_MASK (MAX_AVTAB_HASH_BUCKETS-1)
 #define MAX_AVTAB_SIZE MAX_AVTAB_HASH_BUCKETS