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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next prev 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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