[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>
diff --git a/mm/mempolicy.c b/mm/mempolicy.c
index bedfa4f..6422fe4 100644
--- a/mm/mempolicy.c
+++ b/mm/mempolicy.c
@@ -808,7 +808,7 @@
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);