From: gshan <Gavin.Shan@alcatel-lucent•com>
To: linuxppc-dev@lists•ozlabs.org
Subject: spin_lock_irqsave and multi-core
Date: Thu, 01 Apr 2010 09:59:33 +0800 [thread overview]
Message-ID: <4BB3FE05.6040800@alcatel-lucent.com> (raw)
I got a question when reading source code. Hope somebody can give me the
answer.
On multi-core system, spin_lock_irqsave() can stop all CPU cores
receiving interrupts?
If the answer is no, what we can do to disable external interrupt for
all CPU cores?
Thanks,
Gavin
next reply other threads:[~2010-04-01 2:29 UTC|newest]
Thread overview: 6+ messages / expand[flat|nested] mbox.gz Atom feed top
2010-04-01 1:59 gshan [this message]
2010-04-01 2:39 ` spin_lock_irqsave and multi-core Benjamin Herrenschmidt
2010-04-01 2:41 ` gshan
2010-04-01 2:56 ` Benjamin Herrenschmidt
2010-04-01 3:18 ` gshan
2010-04-01 4:45 ` Benjamin Herrenschmidt
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