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powerpc: pseries: Fix kexec on machines with more than 4TB of RAM

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commit bed9a31527 upstream.

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 <anton@samba.org>
Acked-by: Michael Neuling <mikey@neuling.org>
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
This commit is contained in:
Anton Blanchard
2011-07-26 18:15:03 +00:00
committed by Greg Kroah-Hartman
parent fea59f95cf
commit f45a91a0ad
1 changed files with 1 additions and 1 deletions
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2
arch/powerpc/platforms/pseries/lpar.c
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@@ -395,7 +395,7 @@ 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