[PATCH v2 6/6] x86: mm: Use hugetlb_bad_size

From: Vaishali Thakkar
Date: Wed Mar 23 2016 - 08:50:54 EST


Update the setup_hugepagesz function to call the routine
hugetlb_bad_size when unsupported hugepage size is found.

Signed-off-by: Vaishali Thakkar <vaishali.thakkar@xxxxxxxxxx>
Reviewed-by: Naoya Horiguchi <n-horiguchi@xxxxxxxxxxxxx>
Reviewed-by: Mike Kravetz <mike.kravetz@xxxxxxxxxx>
Cc: Hillf Danton <hillf.zj@xxxxxxxxxxxxxxx>
Cc: Michal Hocko <mhocko@xxxxxxxx>
Cc: Yaowei Bai <baiyaowei@xxxxxxxxxxxxxxxxxxxx>
Cc: Dominik Dingel <dingel@xxxxxxxxxxxxxxxxxx>
Cc: Kirill A. Shutemov <kirill.shutemov@xxxxxxxxxxxxxxx>
Cc: Paul Gortmaker <paul.gortmaker@xxxxxxxxxxxxx>
Cc: Dave Hansen <dave.hansen@xxxxxxxxxxxxxxx>
---
Changes since v1:
- Separate different arch specific changes in different
patches instead of one
---
arch/x86/mm/hugetlbpage.c | 1 +
1 file changed, 1 insertion(+)

diff --git a/arch/x86/mm/hugetlbpage.c b/arch/x86/mm/hugetlbpage.c
index 740d7ac..3ec44f8 100644
--- a/arch/x86/mm/hugetlbpage.c
+++ b/arch/x86/mm/hugetlbpage.c
@@ -165,6 +165,7 @@ static __init int setup_hugepagesz(char *opt)
} else if (ps == PUD_SIZE && cpu_has_gbpages) {
hugetlb_add_hstate(PUD_SHIFT - PAGE_SHIFT);
} else {
+ hugetlb_bad_size();
printk(KERN_ERR "hugepagesz: Unsupported page size %lu M\n",
ps >> 20);
return 0;
--
2.1.4