From: Srivatsa Vaddagiri <vatsa@in.ibm.com>
To: Ashok Raj <ashok.raj@intel.com>
Cc: Andi Kleen <ak@muc.de>,
zwane@arm.linux.org.uk, discuss@x86-64.org, shaohua.li@intel.com,
linux-kernel@vger.kernel.org, rusty@rustycorp.com.au
Subject: Re: [discuss] Re: [patch 0/4] CPU hot-plug support for x86_64
Date: Tue, 24 May 2005 11:16:17 +0530 [thread overview]
Message-ID: <20050524054617.GA5510@in.ibm.com> (raw)
In-Reply-To: <20050523104046.B8692@unix-os.sc.intel.com>
On Mon, May 23, 2005 at 10:40:46AM -0700, Ashok Raj wrote:
> Iam not a 100% sure about above either, if the smp_call_function
> is started with 3 cpus initially, and 1 just came up, the counts in
> the smp_call data struct could be set to 3 as a result of the new cpu
> received this broadcast as well, and we might quit earlier in the wait.
True.
> sending to only relevant cpus removes that ambiquity.
Or grab the 'call_lock' before setting the upcoming cpu in the online_map.
This should also avoid the race when a CPU is coming online.
--
Thanks and Regards,
Srivatsa Vaddagiri,
Linux Technology Center,
IBM Software Labs,
Bangalore, INDIA - 560017
next prev parent reply other threads:[~2005-05-24 5:46 UTC|newest]
Thread overview: 22+ messages / expand[flat|nested] mbox.gz Atom feed top
2005-05-20 22:16 [patch 0/4] CPU hot-plug support for x86_64 Ashok Raj
2005-05-20 22:16 ` [patch 1/4] " Ashok Raj
2005-05-20 22:16 ` [patch 2/4] " Ashok Raj
2005-05-23 16:38 ` Andi Kleen
2005-05-23 16:58 ` Ashok Raj
2005-05-23 17:24 ` Andi Kleen
2005-05-23 17:32 ` Ashok Raj
2005-05-23 19:37 ` Rafael J. Wysocki
2005-05-24 11:49 ` Andi Kleen
2005-05-20 22:16 ` [patch 3/4] " Ashok Raj
2005-05-20 22:16 ` [patch 4/4] " Ashok Raj
2005-05-23 16:40 ` [patch 0/4] " Andi Kleen
2005-05-23 16:54 ` Ashok Raj
2005-05-23 17:12 ` Andi Kleen
2005-05-23 17:40 ` [discuss] " Ashok Raj
2005-05-24 5:46 ` Srivatsa Vaddagiri [this message]
2005-05-24 6:01 ` Ashok Raj
2005-05-24 8:53 ` Srivatsa Vaddagiri
2005-05-24 18:17 ` Andi Kleen
2005-05-24 11:50 ` Andi Kleen
2005-05-24 11:48 ` Andi Kleen
2005-05-24 17:01 ` Srivatsa Vaddagiri
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