[PATCH] base-small: shrink chrdevs hash

CONFIG_BASE_SMALL degrade char dev hash table to linked list
Signed-off-by: Matt Mackall <mpm@selenic.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>

fs/char_dev.c

@@ -26,7 +26,8 @@
 
 static struct kobj_map *cdev_map;
 
-#define MAX_PROBE_HASH 255	/* random */
+/* degrade to linked list for small systems */
+#define MAX_PROBE_HASH (CONFIG_BASE_SMALL ? 1 : 255)
 
 static DEFINE_RWLOCK(chrdevs_lock);