| From bed9a31527af8ff3dfbad62a1a42815cef4baab7 Mon Sep 17 00:00:00 2001 |
| From: Anton Blanchard <anton@samba.org> |
| Date: Tue, 26 Jul 2011 18:15:03 +0000 |
| Subject: powerpc: pseries: Fix kexec on machines with more than 4TB of RAM |
| |
| From: Anton Blanchard <anton@samba.org> |
| |
| commit bed9a31527af8ff3dfbad62a1a42815cef4baab7 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> |
| |
| --- |
| arch/powerpc/platforms/pseries/lpar.c | 2 +- |
| 1 file changed, 1 insertion(+), 1 deletion(-) |
| |
| --- a/arch/powerpc/platforms/pseries/lpar.c |
| +++ b/arch/powerpc/platforms/pseries/lpar.c |
| @@ -372,7 +372,7 @@ static void pSeries_lpar_hptab_clear(voi |
| 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 |
