[PATCH] Fix units in mbind check

maxnode is a bit index and can't be directly compared against a byte length
like PAGE_SIZE

Signed-off-by: Andi Kleen <ak@suse.de>
Cc: Chris Wright <chrisw@sous-sol.org>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>

1 files changed, 1 insertions, 1 deletions

diff --git a/mm/mempolicy.c b/mm/mempolicy.c
index bedfa4f09c80..6422fe478113 100644
--- a/mm/mempolicy.c
+++ b/mm/mempolicy.c
@@ -808,7 +808,7 @@ static int get_nodes(nodemask_t *nodes, const unsigned long __user *nmask,
         nodes_clear(*nodes);
         if (maxnode == 0 || !nmask)
                 return 0;
-        if (maxnode > PAGE_SIZE)
+        if (maxnode > PAGE_SIZE*BITS_PER_BYTE)
                 return -EINVAL;
 
         nlongs = BITS_TO_LONGS(maxnode);