From: Roman Zippel <zippel@linux-m68k.org>
To: yodaiken@fsmlabs.com
Cc: Robert Love <rml@tech9.net>, Andrew Morton <akpm@zip.com.au>,
linux-kernel@vger.kernel.org
Subject: Re: [PATCH] only irq-safe atomic ops
Date: Sat, 23 Feb 2002 22:57:11 +0100 [thread overview]
Message-ID: <3C781037.EA4ADEF5@linux-m68k.org> (raw)
In-Reply-To: <3C773C02.93C7753E@zip.com.au>, <1014444810.1003.53.camel@phantasy> <3C773C02.93C7753E@zip.com.au> <1014449389.1003.149.camel@phantasy> <3C774AC8.5E0848A2@zip.com.au> <20020223043815.B29874@hq.fsmlabs.com> <1014488408.846.806.camel@phantasy> <20020223120648.A1295@hq.fsmlabs.com>
Hi,
yodaiken@fsmlabs.com wrote:
> Right. Without preemption it is safe to do
> c = smp_get_cpuid();
> ...
> x = ++local_cache[c]
> ..
>
> y = ++different_local_cache[c];
> ..
Just add:
smp_put_cpuid();
Is that so much worse?
bye, Roman
next prev parent reply other threads:[~2002-02-23 21:57 UTC|newest]
Thread overview: 36+ messages / expand[flat|nested] mbox.gz Atom feed top
2002-02-23 6:13 [PATCH] only irq-safe atomic ops Robert Love
2002-02-23 6:51 ` Andrew Morton
2002-02-23 7:29 ` Robert Love
2002-02-23 7:54 ` Andrew Morton
2002-02-23 11:38 ` yodaiken
2002-02-23 18:20 ` Robert Love
2002-02-23 19:06 ` yodaiken
2002-02-23 21:57 ` Roman Zippel [this message]
2002-02-23 22:10 ` Andrew Morton
2002-02-23 22:23 ` yodaiken
2002-02-23 22:40 ` Andrew Morton
2002-02-23 22:48 ` yodaiken
2002-02-23 23:13 ` Robert Love
2002-02-23 23:45 ` Robert Love
2002-02-23 23:56 ` Andrew Morton
2002-02-24 1:05 ` yodaiken
2002-02-24 1:08 ` Robert Love
2002-02-23 22:00 ` John Levon
2002-02-23 22:43 ` yodaiken
2002-02-23 20:01 ` Stephen Lord
2002-02-23 20:27 ` Andrew Morton
2002-02-23 9:38 ` Russell King
[not found] <1014444810.1003.53.camel@phantasy.suse.lists.linux.kernel>
[not found] ` <3C773C02.93C7753E@zip.com.au.suse.lists.linux.kernel>
[not found] ` <1014449389.1003.149.camel@phantasy.suse.lists.linux.kernel>
[not found] ` <3C774AC8.5E0848A2@zip.com.au.suse.lists.linux.kernel>
[not found] ` <3C77F503.1060005@sgi.com.suse.lists.linux.kernel>
[not found] ` <3C77FB35.16844FE7@zip.com.au.suse.lists.linux.kernel>
2002-02-23 20:56 ` Andi Kleen
2002-02-23 21:06 ` Andrew Morton
2002-02-23 21:17 ` Stephen Lord
2002-02-23 21:42 ` Andrew Morton
2002-02-23 22:10 ` Stephen Lord
2002-02-23 22:34 ` Andrew Morton
2002-02-23 23:07 ` Mike Fedyk
2002-02-23 23:47 ` Andrew Morton
2002-02-25 13:02 ` Stephen Lord
2002-02-25 13:12 ` Jens Axboe
2002-02-25 13:18 ` Stephen Lord
2002-02-25 19:42 ` Andrew Morton
2002-02-25 19:45 ` Steve Lord
2002-02-25 20:05 ` Andrew Morton
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