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authorAnton Blanchard <anton@samba.org>2011-07-26 18:15:03 +0000
committerGreg Kroah-Hartman <gregkh@suse.de>2011-08-15 19:01:55 -0700
commit64a8b9aa752d3a658d5aad9b42efa9384c537139 (patch)
parentb54b07357a79418d202bcc8fa0156841c3565a16 (diff)
powerpc: pseries: Fix kexec on machines with more than 4TB of RAM
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>
1 files changed, 1 insertions, 1 deletions
diff --git a/arch/powerpc/platforms/pseries/lpar.c b/arch/powerpc/platforms/pseries/lpar.c
index 568b503d68bd..a7d1f095bab0 100644
--- a/arch/powerpc/platforms/pseries/lpar.c
+++ b/arch/powerpc/platforms/pseries/lpar.c
@@ -372,7 +372,7 @@ 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