[patch 40/44] update include/asm-generic/bitops.h

Akinobu Mita
2006-02-01T09:05:00Z

[-- Attachment #1: generic.patch --]
[-- Type: text/plain, Size: 2958 bytes --]

Currently include/asm-generic/bitops.h is not referenced from anywhere.
But it will be the benefit of those who are trying to port Linux to
another architecture.

So update it by same manner

Signed-off-by: Akinobu Mita <mita@miraclelinux.com>
include/asm-generic/bitops.h | 78 +++++++------------------------------------
1 files changed, 14 insertions(+), 64 deletions(-)

Index: 2.6-git/include/asm-generic/bitops.h
===================================================================
--- 2.6-git.orig/include/asm-generic/bitops.h
+++ 2.6-git/include/asm-generic/bitops.h
@@ -5,77 +5,27 @@
* For the benefit of those who are trying to port Linux to another
* architecture, here are some C-language equivalents. You should
* recode these in the native assembly language, if at all possible.
- * To guarantee atomicity, these routines call cli() and sti() to
- * disable interrupts while they operate. (You have to provide inline
- * routines to cli() and sti().)
- *
- * Also note, these routines assume that you have 32 bit longs.
- * You will have to change this if you are trying to port Linux to the
- * Alpha architecture or to a Cray. :-)
*
* C language equivalents written by Theodore Ts'o, 9/26/92
*/

-extern __inline__ int set_bit(int nr,long * addr)
-{
- int mask, retval;
-
- addr += nr >> 5;
- mask = 1 << (nr & 0x1f);
- cli();
- retval = (mask & *addr) != 0;
- *addr |= mask;
- sti();
- return retval;
-}
-
-extern __inline__ int clear_bit(int nr, long * addr)
-{
- int mask, retval;
-
- addr += nr >> 5;
- mask = 1 << (nr & 0x1f);
- cli();
- retval = (mask & *addr) != 0;
- *addr &= ~mask;
- sti();
- return retval;
-}
-
-extern __inline__ int test_bit(int nr, const unsigned long * addr)
-{
- int mask;
-
- addr += nr >> 5;
- mask = 1 << (nr & 0x1f);
- return ((mask & *addr) != 0);
-}
-
-/*
- * fls: find last bit set.
- */
-
-#define fls(x) generic_fls(x)
-#define fls64(x) generic_fls64(x)
+#include <asm-generic/bitops/atomic.h>
+#include <asm-generic/bitops/non-atomic.h>
+#include <asm-generic/bitops/__ffs.h>
+#include <asm-generic/bitops/ffz.h>
+#include <asm-generic/bitops/fls.h>
+#include <asm-generic/bitops/fls64.h>
+#include <asm-generic/bitops/find.h>

#ifdef __KERNEL__

-/*
- * ffs: find first bit set. This is defined the same way as
- * the libc and compiler builtin ffs routines, therefore
- * differs in spirit from the above ffz (man ffs).
- */
-
-#define ffs(x) generic_ffs(x)
-
-/*
- * hweightN: returns the hamming weight (i.e. the number
- * of bits set) of a N-bit word
- */
-
-#define hweight32(x) generic_hweight32(x)
-#define hweight16(x) generic_hweight16(x)
-#define hweight8(x) generic_hweight8(x)
+#include <asm-generic/bitops/sched.h>
+#include <asm-generic/bitops/ffs.h>
+#include <asm-generic/bitops/hweight.h>
+
+#include <asm-generic/bitops/ext2-non-atomic.h>
+#include <asm-generic/bitops/ext2-atomic.h>
+#include <asm-generic/bitops/minix.h>

#endif /* __KERNEL__ */

--