Re: TAKE - make xfs's in memory extents host byte ordered

[Andi Kleen <ak@xxxxxxx>]

Try this patch and see if it fixes the performance problem without 
your XFS change.

Without it the 64bit change would not use BSWAP, but some horribly
handcoded version.

-Andi

--- linux/include/linux/byteorder/swab.h-o      2001-07-26 22:45:47.000000000 
+0200
+++ linux/include/linux/byteorder/swab.h        2002-10-11 03:03:32.000000000 
+0200
@@ -167,11 +167,11 @@
 }
 static __inline__ __u64 __swab64p(__u64 *x)
 {
-       return __arch__swab64p(x);
+       *x = __fswab64(*addr);
 }
 static __inline__ void __swab64s(__u64 *addr)
 {
-       __arch__swab64s(addr);
+       *addr = __fswab64(*addr);
 }
 #endif /* __BYTEORDER_HAS_U64__ */