commit: bed9a31527af8ff3dfbad62a1a42815cef4baab7
From: Anton Blanchard <an...@samba.org>
Date: Tue, 26 Jul 2011 18:15:03 +0000
Subject: [PATCH] powerpc: pseries: Fix kexec on machines with more than 4TB
of RAM
On a box with 8TB of RAM the MMU hashtable is 64GB in size. That
means we have 4G PTEs. pSeries_lpar_hptab_clear was using a signed
int to store the index which will overflow at 2G.
Signed-off-by: Anton Blanchard <an...@samba.org>
Cc: <sta...@kernel.org>
Acked-by: Michael Neuling <mi...@neuling.org>
Signed-off-by: Benjamin Herrenschmidt <b...@kernel.crashing.org>
---
arch/powerpc/platforms/pseries/lpar.c | 2 +-
1 files changed, 1 insertions(+), 1 deletions(-)
diff --git a/arch/powerpc/platforms/pseries/lpar.c
b/arch/powerpc/platforms/pseries/lpar.c
index f7205d3..225aecf 100644
--- a/arch/powerpc/platforms/pseries/lpar.c
+++ b/arch/powerpc/platforms/pseries/lpar.c
@@ -204,7 +204,7 @@ static void pSeries_lpar_hptab_clear(void)
unsigned long ptel;
} ptes[4];
long lpar_rc;
- int i, j;
+ unsigned long i, j;
/* Read in batches of 4,
* invalidate only valid entries not in the VRMA
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