From: Martin Waitz <tali@admingilde.org>
To: Akinobu Mita <mita@miraclelinux.com>
Cc: linux-kernel@vger.kernel.org, Chris Zankel <chris@zankel.net>,
Keith Owens <kaos@sgi.com>
Subject: Re: [patch 05/44] generic {,test_and_}{set,clear,change}_bit()
Date: Fri, 3 Feb 2006 10:55:36 +0100 [thread overview]
Message-ID: <20060203095536.GO11002@admingilde.org> (raw)
In-Reply-To: <20060201090322.252374000@localhost.localdomain>
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hoi :)
On Wed, Feb 01, 2006 at 06:02:29PM +0900, Akinobu Mita wrote:
> +static __inline__ void set_bit(int nr, volatile unsigned long *addr)
> +{
> + unsigned long mask = BITOP_MASK(nr);
> + unsigned long *p = ((unsigned long *)addr) + BITOP_WORD(nr);
> + unsigned long flags;
> +
> + _atomic_spin_lock_irqsave(p, flags);
> + *p |= mask;
> + _atomic_spin_unlock_irqrestore(p, flags);
> +}
You could even use your new generic non-atomic bitops to implement these
--
Martin Waitz
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next prev parent reply other threads:[~2006-02-03 9:55 UTC|newest]
Thread overview: 63+ messages / expand[flat|nested] mbox.gz Atom feed top
2006-02-01 9:02 [patch 00/44] generic bitops Akinobu Mita
2006-02-01 9:02 ` [patch 01/44] ia64: use cpu_set() instead of __set_bit() Akinobu Mita
2006-02-01 9:02 ` [patch 02/44] parisc: add ()-pair in __ffz() macro Akinobu Mita
2006-02-01 9:02 ` [patch 03/44] cris: remove unnecessary local_irq_restore() Akinobu Mita
2006-02-01 9:02 ` [patch 04/44] use non atomic operations for minix_*_bit() and ext2_*_bit() Akinobu Mita
2006-02-01 9:02 ` [patch 05/44] generic {,test_and_}{set,clear,change}_bit() Akinobu Mita
2006-02-03 9:55 ` Martin Waitz [this message]
2006-02-06 23:07 ` Russell King
2006-02-01 9:02 ` [patch 06/44] generic __{,test_and_}{set,clear,change}_bit() and test_bit() Akinobu Mita
2006-02-01 9:02 ` [patch 07/44] generic __ffs() Akinobu Mita
2006-02-01 9:02 ` [patch 08/44] generic ffz() Akinobu Mita
2006-02-01 9:02 ` [patch 09/44] generic fls() Akinobu Mita
2006-02-01 9:02 ` [patch 10/44] generic fls64() Akinobu Mita
2006-02-01 9:02 ` [patch 11/44] generic find_{next,first}{,_zero}_bit() Akinobu Mita
2006-02-01 9:02 ` [patch 12/44] generic sched_find_first_bit() Akinobu Mita
2006-02-03 3:58 ` [parisc-linux] " Grant Grundler
2006-02-01 9:02 ` [patch 13/44] generic ffs() Akinobu Mita
2006-02-01 9:02 ` [patch 14/44] generic hweight{64,32,16,8}() Akinobu Mita
2006-02-01 9:06 ` Andi Kleen
2006-02-01 9:26 ` Michael Tokarev
2006-02-01 10:24 ` Andi Kleen
2006-02-02 12:50 ` Akinobu Mita
2006-02-09 5:55 ` [PATCH] alpha: remove __alpha_cix__ and __alpha_fix__ Akinobu Mita
2006-02-09 19:12 ` Richard Henderson
2006-02-10 5:40 ` Akinobu Mita
2006-02-02 1:26 ` [patch 14/44] generic hweight{64,32,16,8}() Gabriel Paubert
2006-02-06 11:52 ` Akinobu Mita
2006-02-03 8:31 ` Ulrich Eckhardt
2006-02-01 9:02 ` [patch 15/44] generic ext2_{set,clear,test,find_first_zero,find_next_zero}_bit() Akinobu Mita
2006-02-01 11:27 ` Roman Zippel
2006-02-06 11:47 ` Akinobu Mita
2006-02-08 10:41 ` Akinobu Mita
2006-02-01 9:02 ` [patch 16/44] generic ext2_{set,clear}_bit_atomic() Akinobu Mita
2006-02-01 9:02 ` [patch 17/44] generic minix_{test,set,test_and_clear,test,find_first_zero}_bit() Akinobu Mita
2006-02-01 9:02 ` [patch 18/44] alpha: use generic bitops Akinobu Mita
2006-02-01 9:02 ` [patch 19/44] arm: " Akinobu Mita
2006-02-01 9:02 ` [patch 20/44] arm26: " Akinobu Mita
2006-02-01 9:02 ` [patch 21/44] cris: " Akinobu Mita
2006-02-01 9:02 ` [patch 22/44] frv: " Akinobu Mita
2006-02-01 9:02 ` [patch 23/44] h8300: " Akinobu Mita
2006-02-01 9:02 ` [patch 24/44] i386: " Akinobu Mita
2006-02-01 9:02 ` [patch 25/44] ia64: " Akinobu Mita
2006-02-01 9:02 ` [patch 26/44] m32r: " Akinobu Mita
2006-02-01 9:02 ` [patch 27/44] m68k: " Akinobu Mita
2006-02-01 9:02 ` [patch 28/44] m68knommu: " Akinobu Mita
2006-02-01 9:02 ` [patch 29/44] mips: " Akinobu Mita
2006-02-01 9:02 ` [patch 30/44] parisc: " Akinobu Mita
2006-02-01 9:02 ` [patch 31/44] powerpc: " Akinobu Mita
2006-02-01 9:02 ` [patch 32/44] s390: " Akinobu Mita
2006-02-01 9:02 ` [patch 33/44] sh: " Akinobu Mita
2006-02-01 9:02 ` [patch 34/44] sh64: " Akinobu Mita
2006-02-01 9:02 ` [patch 35/44] sparc: " Akinobu Mita
2006-02-01 9:03 ` [patch 36/44] sparc64: " Akinobu Mita
2006-02-01 9:03 ` [patch 37/44] v850: " Akinobu Mita
2006-02-01 9:03 ` [patch 38/44] x86_64: " Akinobu Mita
2006-02-01 9:03 ` [patch 39/44] xtensa: " Akinobu Mita
2006-02-01 9:03 ` [patch 40/44] update include/asm-generic/bitops.h Akinobu Mita
2006-02-01 9:03 ` [patch 41/44] make thread_info.flags an unsigned long Akinobu Mita
2006-02-01 9:03 ` [patch 42/44] ia64: make partial_page.bitmap " Akinobu Mita
2006-02-01 9:03 ` [patch 43/44] ntfs: remove generic_ffs() Akinobu Mita
2006-02-01 9:03 ` [patch 44/44] remove unused generic bitops in include/linux/bitops.h Akinobu Mita
2006-02-06 10:26 ` [patch 11/44] generic find_{next,first}{,_zero}_bit() David Howells
2006-02-07 2:02 ` Akinobu Mita
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