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[Xen-changelog] [xen-unstable] x86: fix off-by-one error in the cache fl

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Subject:	[Xen-changelog] [xen-unstable] x86: fix off-by-one error in the cache flush portion of flush_area_local().
From:	Xen patchbot-unstable <patchbot-unstable@xxxxxxxxxxxxxxxxxxx>
Date:	Tue, 04 May 2010 13:20:51 -0700
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# HG changeset patch
# User Keir Fraser <keir.fraser@xxxxxxxxxx>
# Date 1272973169 -3600
# Node ID bd52f2e040e5a5ca58e956b3d0780a86934a429e
# Parent  d6cf080505cda4944e923194bd24faacece668d4
x86: fix off-by-one error in the cache flush portion of flush_area_local().

Signed-off-by: Jan Beulich <jbeulich@xxxxxxxxxx>
---
 xen/arch/x86/flushtlb.c |    2 +-
 1 files changed, 1 insertion(+), 1 deletion(-)

diff -r d6cf080505cd -r bd52f2e040e5 xen/arch/x86/flushtlb.c
--- a/xen/arch/x86/flushtlb.c   Tue May 04 12:38:19 2010 +0100
+++ b/xen/arch/x86/flushtlb.c   Tue May 04 12:39:29 2010 +0100
@@ -149,7 +149,7 @@ void flush_area_local(const void *va, un
     {
         unsigned long i, sz = 0;
 
-        if ( order < (BITS_PER_LONG - PAGE_SHIFT - 1) )
+        if ( order < (BITS_PER_LONG - PAGE_SHIFT) )
             sz = 1UL << (order + PAGE_SHIFT);
 
         if ( c->x86_clflush_size && c->x86_cache_size && sz &&

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