From: Manfred Spraul <manfred@colorfullife.com>
To: Oleg Nesterov <oleg@tv-sign.ru>
Cc: linux-kernel@vger.kernel.org,
Dipankar Sarma <dipankar@in.ibm.com>,
Andrew Morton <akpm@osdl.org>
Subject: Re: [PATCH] rcu: eliminate rcu_data.last_qsctr
Date: Mon, 29 Nov 2004 20:00:02 +0100 [thread overview]
Message-ID: <41AB71B2.1050301@colorfullife.com> (raw)
In-Reply-To: <41AA0D5F.21CB9ED3@tv-sign.ru>
Oleg Nesterov wrote:
>last_qsctr is used in rcu_check_quiescent_state() exclusively.
>We can reset qsctr at the start of the grace period, and then
>just test qsctr against 0.
>
>On top of the 'rcu: eliminate rcu_ctrlblk.lock', see
>http://marc.theaimsgroup.com/?l=linux-kernel&m=110156786721526
>
>Signed-off-by: Oleg Nesterov <oleg@tv-sign.ru>
>
>
>
Compile and boot tested with 2.6.10-rc2 on a 2-cpu system.
Signed-Off-By: Manfred Spraul <manfred@colorfullife.com>
next prev parent reply other threads:[~2004-11-29 19:33 UTC|newest]
Thread overview: 4+ messages / expand[flat|nested] mbox.gz Atom feed top
2004-11-28 17:39 [PATCH] rcu: eliminate rcu_data.last_qsctr Oleg Nesterov
2004-11-29 19:00 ` Manfred Spraul [this message]
2004-12-29 15:37 ` Manfred Spraul
2005-01-05 18:30 ` Paul E. McKenney
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