dcache: allow word-at-a-time name hashing with big-endian CPUs

[~andy/linux] / include / linux / dcache.h

diff --git a/include/linux/dcache.h b/include/linux/dcache.h
index 57e87e749a484cbf09a2f9f21fac3d3f52574df9..bf72e9ac6de01d1b1783b0b4adfd441c9c9ac58c 100644 (file)
--- a/include/linux/dcache.h
+++ b/include/linux/dcache.h
@@ -29,8 +29,10 @@ struct vfsmount;
 /* The hash is always the low bits of hash_len */
 #ifdef __LITTLE_ENDIAN
  #define HASH_LEN_DECLARE u32 hash; u32 len;
+ #define bytemask_from_count(cnt)      (~(~0ul << (cnt)*8))
 #else
  #define HASH_LEN_DECLARE u32 len; u32 hash;
+ #define bytemask_from_count(cnt)      (~(~0ul >> (cnt)*8))
 #endif
 
 /*