Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S932404AbWBAJFA (ORCPT ); Wed, 1 Feb 2006 04:05:00 -0500 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S932407AbWBAJEB (ORCPT ); Wed, 1 Feb 2006 04:04:01 -0500 Received: from ns.miraclelinux.com ([219.118.163.66]:21067 "EHLO mail01.miraclelinux.com") by vger.kernel.org with ESMTP id S932404AbWBAJDg (ORCPT ); Wed, 1 Feb 2006 04:03:36 -0500 Message-Id: <20060201090335.276333000@localhost.localdomain> References: <20060201090224.536581000@localhost.localdomain> Date: Wed, 01 Feb 2006 18:03:04 +0900 From: Akinobu Mita To: linux-kernel@vger.kernel.org Cc: Theodore Tso , Akinobu Mita Subject: [patch 40/44] update include/asm-generic/bitops.h Content-Disposition: inline; filename=generic.patch Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 3202 Lines: 113 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 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 +#include +#include +#include +#include +#include +#include #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 +#include +#include + +#include +#include +#include #endif /* __KERNEL__ */ -- - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/