Merge git://git.kernel.org/pub/scm/linux/kernel/git/viro/bdev

[linux-2.6-omap-h63xx.git] / include / linux / device-mapper.h

diff --git a/include/linux/device-mapper.h b/include/linux/device-mapper.h
index a567bbc5293a79fcc3c5a9c65c324a49d776f7dc..c17fd334e574ec759285c892616ab01108ec0e13 100644 (file)
--- a/include/linux/device-mapper.h
+++ b/include/linux/device-mapper.h
@@ -353,6 +353,9 @@ void *dm_vcalloc(unsigned long nmemb, unsigned long elem_size);
  */
 #define dm_round_up(n, sz) (dm_div_up((n), (sz)) * (sz))
 
+#define dm_array_too_big(fixed, obj, num) \
+       ((num) > (UINT_MAX - (fixed)) / (obj))
+
 static inline sector_t to_sector(unsigned long n)
 {
        return (n >> SECTOR_SHIFT);