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xen-devel
[Xen-devel] [PATCH 3/3] xen: Clear PG_pinned in release_{pt,pd}()
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To: |
Jeremy Fitzhardinge <jeremy@xxxxxxxx> |
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Subject: |
[Xen-devel] [PATCH 3/3] xen: Clear PG_pinned in release_{pt,pd}() |
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From: |
Mark McLoughlin <markmc@xxxxxxxxxx> |
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Date: |
Wed, 2 Apr 2008 15:36:38 +0100 |
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Cc: |
Mark McLoughlin <markmc@xxxxxxxxxx>, xen-devel@xxxxxxxxxxxxxxxxxxx, linux-kernel@xxxxxxxxxxxxxxx, "H. Peter Anvin" <hpa@xxxxxxxxx>, Ingo Molnar <mingo@xxxxxxx>, Thomas Gleixner <tglx@xxxxxxxxxxxxx> |
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Wed, 02 Apr 2008 07:37:35 -0700 |
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<1207146998-14607-2-git-send-email-markmc@xxxxxxxxxx> |
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<1207146943.11911.1.camel@muff> <1207146998-14607-1-git-send-email-markmc@xxxxxxxxxx> <1207146998-14607-2-git-send-email-markmc@xxxxxxxxxx> |
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xen-devel-bounces@xxxxxxxxxxxxxxxxxxx |
We don't currently clear PG_pinned in release_pt(),
probably because the page is to be freed anyway,
but it jumps out as an obvious gap in the logic
so add clear the flag for consistency sake.
Signed-off-by: Mark McLoughlin <markmc@xxxxxxxxxx>
---
arch/x86/xen/enlighten.c | 1 +
1 files changed, 1 insertions(+), 0 deletions(-)
diff --git a/arch/x86/xen/enlighten.c b/arch/x86/xen/enlighten.c
index f16b056..27ee26a 100644
--- a/arch/x86/xen/enlighten.c
+++ b/arch/x86/xen/enlighten.c
@@ -717,6 +717,7 @@ static void xen_release_ptpage(u32 pfn, unsigned level)
pin_pagetable_pfn(MMUEXT_UNPIN_TABLE, pfn);
make_lowmem_page_readwrite(__va(PFN_PHYS(pfn)));
}
+ ClearPagePinned(page);
}
}
--
1.5.4.5
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