From: Tejun Heo <tj@kernel.org>
To: Dave Young <dyoung@redhat.com>
Cc: gregkh@suse.de, cl@linux-foundation.org,
linux-kernel@vger.kernel.org, linux-mm@kvack.org
Subject: Re: [PATCCH percpu: add cpunum param in per_cpu_ptr_to_phys
Date: Tue, 15 Nov 2011 06:49:43 -0800 [thread overview]
Message-ID: <20111115144943.GJ30922@google.com> (raw)
In-Reply-To: <20111115083646.GA21468@darkstar.nay.redhat.com>
On Tue, Nov 15, 2011 at 04:36:46PM +0800, Dave Young wrote:
> per_cpu_ptr_to_phys iterate all cpu to get the phy addr
> let's leave the caller to pass the cpu number to it.
>
> Actually in the only one user show_crash_notes,
> cpunum is provided already before calling this.
>
> Signed-off-by: Dave Young <dyoung@redhat.com>
Does this matter? If it's not a performance critical path, I'd rather
keep the generic funtionality.
Thanks.
--
tejun
WARNING: multiple messages have this Message-ID (diff)
From: Tejun Heo <tj@kernel.org>
To: Dave Young <dyoung@redhat.com>
Cc: gregkh@suse.de, cl@linux-foundation.org,
linux-kernel@vger.kernel.org, linux-mm@kvack.org
Subject: Re: [PATCCH percpu: add cpunum param in per_cpu_ptr_to_phys
Date: Tue, 15 Nov 2011 06:49:43 -0800 [thread overview]
Message-ID: <20111115144943.GJ30922@google.com> (raw)
In-Reply-To: <20111115083646.GA21468@darkstar.nay.redhat.com>
On Tue, Nov 15, 2011 at 04:36:46PM +0800, Dave Young wrote:
> per_cpu_ptr_to_phys iterate all cpu to get the phy addr
> let's leave the caller to pass the cpu number to it.
>
> Actually in the only one user show_crash_notes,
> cpunum is provided already before calling this.
>
> Signed-off-by: Dave Young <dyoung@redhat.com>
Does this matter? If it's not a performance critical path, I'd rather
keep the generic funtionality.
Thanks.
--
tejun
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next prev parent reply other threads:[~2011-11-15 14:49 UTC|newest]
Thread overview: 8+ messages / expand[flat|nested] mbox.gz Atom feed top
2011-11-15 8:36 [PATCCH percpu: add cpunum param in per_cpu_ptr_to_phys Dave Young
2011-11-15 8:36 ` Dave Young
2011-11-15 14:49 ` Tejun Heo [this message]
2011-11-15 14:49 ` Tejun Heo
2011-11-16 1:15 ` Dave Young
2011-11-16 1:15 ` Dave Young
2011-11-16 1:25 ` Tejun Heo
2011-11-16 1:25 ` Tejun Heo
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