Correct overflow problem in calculation+display of Maximum Memory
value to syscfg where 32bits is insufficient.
Signed-off-by: Michael Bringmann <m...@linux.ibm.com>
---
arch/powerpc/platforms/pseries/lparcfg.c | 8 ++++----
1 file changed, 4 insertions(+), 4 deletions(-)
diff --git a/arch/powerpc/platforms/pseries/lparcfg.c
b/arch/powerpc/platforms/pseries/lparcfg.c
index 4ee2594..183aeb7 100644
--- a/arch/powerpc/platforms/pseries/lparcfg.c
+++ b/arch/powerpc/platforms/pseries/lparcfg.c
@@ -435,12 +435,12 @@ static void parse_em_data(struct seq_file *m)
static void maxmem_data(struct seq_file *m)
{
- unsigned long maxmem = 0;
+ unsigned long long maxmem = 0;
- maxmem += drmem_info->n_lmbs * drmem_info->lmb_size;
- maxmem += hugetlb_total_pages() * PAGE_SIZE;
+ maxmem += (unsigned long long)drmem_info->n_lmbs * (unsigned long
long)drmem_info->lmb_size;
+ maxmem += (unsigned long long)hugetlb_total_pages() * (unsigned long
long)PAGE_SIZE;
- seq_printf(m, "MaxMem=%ld\n", maxmem);
+ seq_printf(m, "MaxMem=%llu\n", maxmem);
}
static int pseries_lparcfg_data(struct seq_file *m, void *v)
--
1.8.3.1
