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From: Marcelo Tosatti <mtosatti@redhat.com>
To: Xiao Guangrong <xiaoguangrong@cn.fujitsu.com>,
	Ingo Molnar <mingo@elte.hu>, Nick Piggin <npiggin@suse.de>
Cc: Avi Kivity <avi@redhat.com>, LKML <linux-kernel@vger.kernel.org>,
	KVM list <kvm@vger.kernel.org>
Subject: Re: [PATCH v4 1/6] KVM: MMU: introduce gfn_to_pfn_atomic() function
Date: Fri, 2 Jul 2010 13:47:56 -0300	[thread overview]
Message-ID: <20100702164756.GA25969@amt.cnet> (raw)
In-Reply-To: <4C2C9DC0.8050607@cn.fujitsu.com>

On Thu, Jul 01, 2010 at 09:53:04PM +0800, Xiao Guangrong wrote:
> Introduce gfn_to_pfn_atomic(), it's the fast path and can used in atomic
> context, the later patch will use it
> 
> Signed-off-by: Xiao Guangrong <xiaoguangrong@cn.fujitsu.com>
> ---
>  arch/x86/mm/gup.c        |    2 ++
>  include/linux/kvm_host.h |    1 +
>  virt/kvm/kvm_main.c      |   32 +++++++++++++++++++++++++-------
>  3 files changed, 28 insertions(+), 7 deletions(-)
> 
> diff --git a/arch/x86/mm/gup.c b/arch/x86/mm/gup.c
> index 738e659..0c9034b 100644
> --- a/arch/x86/mm/gup.c
> +++ b/arch/x86/mm/gup.c
> @@ -6,6 +6,7 @@
>   */
>  #include <linux/sched.h>
>  #include <linux/mm.h>
> +#include <linux/module.h>
>  #include <linux/vmstat.h>
>  #include <linux/highmem.h>
>  
> @@ -274,6 +275,7 @@ int __get_user_pages_fast(unsigned long start, int nr_pages, int write,
>  
>  	return nr;
>  }
> +EXPORT_SYMBOL_GPL(__get_user_pages_fast);
>  
>  /**
>   * get_user_pages_fast() - pin user pages in memory

This should be a separate patch (overlooked that before). Ingo, Nick,
can this go in through the kvm tree?


  parent reply	other threads:[~2010-07-02 17:22 UTC|newest]

Thread overview: 32+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2010-07-01 13:53 [PATCH v4 1/6] KVM: MMU: introduce gfn_to_pfn_atomic() function Xiao Guangrong
2010-07-01 13:53 ` [PATCH v4 2/6] KVM: MMU: introduce gfn_to_page_many_atomic() function Xiao Guangrong
2010-07-01 13:54 ` [PATCH v4 3/6] KVM: MMU: introduce pte_prefetch_topup_memory_cache() Xiao Guangrong
2010-07-01 13:55 ` [PATCH v4 4/6] KVM: MMU: prefetch ptes when intercepted guest #PF Xiao Guangrong
2010-07-02 16:54   ` Marcelo Tosatti
2010-07-03  8:08     ` Xiao Guangrong
2010-07-05 12:01       ` Marcelo Tosatti
2010-07-06  0:50         ` Xiao Guangrong
2010-07-01 13:55 ` [PATCH v4 5/6] KVM: MMU: combine guest pte read between walk and pte prefetch Xiao Guangrong
2010-07-02 17:03   ` Marcelo Tosatti
2010-07-03 10:31     ` Xiao Guangrong
2010-07-03 12:08       ` Avi Kivity
2010-07-03 12:16         ` Xiao Guangrong
2010-07-03 12:26           ` Avi Kivity
2010-07-03 12:31             ` Xiao Guangrong
2010-07-03 12:44               ` Avi Kivity
2010-07-03 12:49                 ` Avi Kivity
2010-07-03 13:03                   ` Xiao Guangrong
2010-07-04 14:30                     ` Avi Kivity
2010-07-05  2:52                       ` Xiao Guangrong
2010-07-05  8:23                         ` Avi Kivity
2010-07-05  8:45                           ` Xiao Guangrong
2010-07-05  9:05                             ` Avi Kivity
2010-07-05  9:09                               ` Xiao Guangrong
2010-07-05  9:20                                 ` Avi Kivity
2010-07-05  9:31                                   ` Xiao Guangrong
2010-07-03 12:57                 ` Xiao Guangrong
2010-07-04 14:32                   ` Avi Kivity
2010-07-03 11:48     ` Avi Kivity
2010-07-01 13:56 ` [PATCH v4 6/6] KVM: MMU: trace " Xiao Guangrong
2010-07-02 16:47 ` Marcelo Tosatti [this message]
2010-07-03  3:13   ` [PATCH v4 1/6] KVM: MMU: introduce gfn_to_pfn_atomic() function Nick Piggin

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