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From: Gleb Natapov <gleb@redhat.com>
To: kvm@vger.kernel.org
Cc: linux-mm@kvack.org, linux-kernel@vger.kernel.org, avi@redhat.com,
	mingo@elte.hu, a.p.zijlstra@chello.nl, tglx@linutronix.de,
	hpa@zytor.com, riel@redhat.com, cl@linux-foundation.org,
	mtosatti@redhat.com
Subject: [PATCH v5 05/12] Export __get_user_pages_fast.
Date: Mon, 19 Jul 2010 18:30:55 +0300	[thread overview]
Message-ID: <1279553462-7036-6-git-send-email-gleb@redhat.com> (raw)
In-Reply-To: <1279553462-7036-1-git-send-email-gleb@redhat.com>

KVM will use it to try and find a page without falling back to slow
gup. That is why get_user_pages_fast() is not enough.

Reviewed-by: Rik van Riel <riel@redhat.com>
Signed-off-by: Gleb Natapov <gleb@redhat.com>
---
 arch/x86/mm/gup.c |    2 ++
 1 files changed, 2 insertions(+), 0 deletions(-)

diff --git a/arch/x86/mm/gup.c b/arch/x86/mm/gup.c
index 738e659..a4ce19f 100644
--- a/arch/x86/mm/gup.c
+++ b/arch/x86/mm/gup.c
@@ -8,6 +8,7 @@
 #include <linux/mm.h>
 #include <linux/vmstat.h>
 #include <linux/highmem.h>
+#include <linux/module.h>
 
 #include <asm/pgtable.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
-- 
1.7.1

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  parent reply	other threads:[~2010-07-19 15:31 UTC|newest]

Thread overview: 41+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2010-07-19 15:30 [PATCH v5 00/12] KVM: Add host swap event notifications for PV guest Gleb Natapov
2010-07-19 15:30 ` [PATCH v5 01/12] Move kvm_smp_prepare_boot_cpu() from kvmclock.c to kvm.c Gleb Natapov
2010-07-19 15:30 ` [PATCH v5 02/12] Add PV MSR to enable asynchronous page faults delivery Gleb Natapov
2010-08-23 15:22   ` Avi Kivity
2010-08-23 15:29     ` Gleb Natapov
2010-07-19 15:30 ` [PATCH v5 03/12] Add async PF initialization to PV guest Gleb Natapov
2010-07-19 19:52   ` Rik van Riel
2010-08-23 15:26   ` Avi Kivity
2010-08-23 15:35     ` Gleb Natapov
2010-08-23 16:08       ` Christoph Lameter
2010-08-23 16:10         ` Gleb Natapov
2010-08-23 16:19         ` Avi Kivity
2010-07-19 15:30 ` [PATCH v5 04/12] Provide special async page fault handler when async PF capability is detected Gleb Natapov
2010-08-23 15:48   ` Avi Kivity
2010-08-23 15:52     ` Rik van Riel
2010-08-23 16:22       ` Avi Kivity
2010-08-24  7:31     ` Gleb Natapov
2010-08-24  9:02       ` Avi Kivity
2010-07-19 15:30 ` Gleb Natapov [this message]
2010-07-19 15:30 ` [PATCH v5 06/12] Add get_user_pages() variant that fails if major fault is required Gleb Natapov
2010-08-23 15:50   ` Avi Kivity
2010-07-19 15:30 ` [PATCH v5 07/12] Maintain memslot version number Gleb Natapov
2010-08-23 15:53   ` Avi Kivity
2010-07-19 15:30 ` [PATCH v5 08/12] Inject asynchronous page fault into a guest if page is swapped out Gleb Natapov
2010-08-23 16:17   ` Avi Kivity
2010-08-24  7:52     ` Gleb Natapov
2010-08-24  9:04       ` Avi Kivity
2010-08-24 12:28     ` Gleb Natapov
2010-08-24 12:33       ` Avi Kivity
2010-07-19 15:30 ` [PATCH v5 09/12] Retry fault before vmentry Gleb Natapov
2010-08-24  9:25   ` Avi Kivity
2010-08-24  9:33     ` Gleb Natapov
2010-08-24  9:38       ` Avi Kivity
2010-07-19 15:31 ` [PATCH v5 10/12] Handle async PF in non preemptable context Gleb Natapov
2010-08-24  9:30   ` Avi Kivity
2010-08-24  9:36     ` Gleb Natapov
2010-08-24  9:46       ` Avi Kivity
2010-07-19 15:31 ` [PATCH v5 11/12] Let host know whether the guest can handle async PF in non-userspace context Gleb Natapov
2010-08-24  9:31   ` Avi Kivity
2010-07-19 15:31 ` [PATCH v5 12/12] Send async PF when guest is not in userspace too Gleb Natapov
2010-08-24  9:36   ` Avi Kivity

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