[PATCH] sane mlock_limit

As David M-T points out, the default per-user mlock limit should be at least a
single page.
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>

include/linux/resource.h

@@ -59,7 +59,7 @@ struct rlimit {
  * GPG wants 32kB of mlocked memory, to make sure pass phrases
  * and other sensitive information are never written to disk.
  */
-#define MLOCK_LIMIT	(32*1024)
+#define MLOCK_LIMIT	(8 * PAGE_SIZE)
 
 /*
  * Due to binary compatibility, the actual resource numbers