From: Nikita Danilov <nikita@clusterfs.com>
To: Nick Piggin <npiggin@suse.de>
Cc: linux-arch@vger.kernel.org,
Benjamin Herrenschmidt <benh@kernel.crashing.org>,
Andrew Morton <akpm@linux-foundation.org>,
Linux Kernel Mailing List <linux-kernel@vger.kernel.org>
Subject: Re: [rfc] lock bitops
Date: Wed, 9 May 2007 16:08:41 +0400 [thread overview]
Message-ID: <17985.47561.298978.466437@gargle.gargle.HOWL> (raw)
In-Reply-To: <20070508113709.GA19294@wotan.suse.de>
Nick Piggin writes:
> Hi,
[...]
>
> /**
> + * clear_bit_unlock - Clears a bit in memory with release
> + * @nr: Bit to clear
> + * @addr: Address to start counting from
> + *
> + * clear_bit() is atomic and may not be reordered. It does
s/clear_bit/clear_bit_unlock/ ?
> + * contain a memory barrier suitable for unlock type operations.
> + */
> +static __inline__ void
> +clear_bit_unlock (int nr, volatile void *addr)
> +{
Nikita.
next prev parent reply other threads:[~2007-05-09 12:08 UTC|newest]
Thread overview: 34+ messages / expand[flat|nested] mbox.gz Atom feed top
2007-05-08 11:37 Nick Piggin
2007-05-08 11:40 ` [rfc] optimise unlock_page Nick Piggin
2007-05-08 20:08 ` Hugh Dickins
2007-05-08 21:30 ` Benjamin Herrenschmidt
2007-05-08 22:41 ` Nick Piggin
2007-05-08 22:50 ` Nick Piggin
2007-05-09 19:33 ` Hugh Dickins
2007-05-09 21:21 ` Benjamin Herrenschmidt
2007-05-10 3:37 ` Nick Piggin
2007-05-10 19:14 ` Hugh Dickins
2007-05-11 8:54 ` Nick Piggin
2007-05-11 13:15 ` Hugh Dickins
2007-05-13 3:32 ` Nick Piggin
2007-05-13 4:39 ` Hugh Dickins
2007-05-13 6:52 ` Nick Piggin
2007-05-16 17:54 ` Hugh Dickins
2007-05-16 18:18 ` Nick Piggin
2007-05-16 19:28 ` Hugh Dickins
2007-05-16 19:47 ` Linus Torvalds
2007-05-17 6:27 ` Nick Piggin
2007-05-16 17:21 ` Hugh Dickins
2007-05-16 17:38 ` Nick Piggin
2007-05-08 12:13 ` David Howells
2007-05-08 22:35 ` Nick Piggin
2007-05-08 12:22 ` [rfc] lock bitops David Howells
2007-05-08 22:33 ` Nick Piggin
2007-05-09 6:18 ` Nick Piggin
2007-05-08 15:06 ` Matthew Wilcox
2007-05-08 21:23 ` Benjamin Herrenschmidt
2007-05-08 22:29 ` Nick Piggin
2007-05-08 22:40 ` Matthew Wilcox
2007-05-08 22:45 ` Nick Piggin
2007-05-09 12:08 ` Nikita Danilov [this message]
2007-05-09 12:20 ` Nick Piggin
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