From: Christoph Lameter <cl@linux-foundation.org>
To: Bruno Santos <bsantos@av.it.pt>
Cc: Arjan van de Ven <arjan@infradead.org>, linux-kernel@vger.kernel.org
Subject: Re: semaphore: lockless fastpath using atomic_{inc,dec}_return
Date: Wed, 09 Jul 2008 09:24:42 -0500 [thread overview]
Message-ID: <4874CA2A.3050600@linux-foundation.org> (raw)
In-Reply-To: <20080709071635.5c5ecc0f@infradead.org>
And is this safe? It seems that we can always be rescheduled after the atomic operation and
interrupts can occur too. You need to tell us why this is safe in all cases.
next prev parent reply other threads:[~2008-07-09 14:25 UTC|newest]
Thread overview: 8+ messages / expand[flat|nested] mbox.gz Atom feed top
2008-07-09 13:13 semaphore: lockless fastpath using atomic_{inc,dec}_return Bruno Santos
2008-07-09 14:16 ` Arjan van de Ven
2008-07-09 14:24 ` Christoph Lameter [this message]
-- strict thread matches above, loose matches on Subject: below --
2008-07-09 15:39 Bruno Santos
2008-07-09 15:50 ` Arjan van de Ven
2008-07-09 16:56 ` Bruno Santos
2008-07-09 19:27 ` Bruno Santos
2008-07-09 20:05 ` Arjan van de Ven
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