linux-kernel - [PATCH v2 2/6] arm64: mm: Use hugetlb_bad

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [day] [month] [year] [list]

Message-Id: <1458735959-15677-1-git-send-email-vaishali.thakkar@oracle.com>
Date:	Wed, 23 Mar 2016 17:55:59 +0530
From:	Vaishali Thakkar <vaishali.thakkar@...cle.com>
To:	akpm@...ux-foundation.org
Cc:	catalin.marinas@....com, will.deacon@....com,
	linux-arm-kernel@...ts.infradead.org, linux-mm@...ck.org,
	linux-kernel@...r.kernel.org,
	Vaishali Thakkar <vaishali.thakkar@...cle.com>,
	Hillf Danton <hillf.zj@...baba-inc.com>,
	Michal Hocko <mhocko@...e.com>,
	Yaowei Bai <baiyaowei@...s.chinamobile.com>,
	Dominik Dingel <dingel@...ux.vnet.ibm.com>,
	"Kirill A. Shutemov" <kirill.shutemov@...ux.intel.com>,
	Paul Gortmaker <paul.gortmaker@...driver.com>,
	Dave Hansen <dave.hansen@...ux.intel.com>
Subject: [PATCH v2 2/6] arm64: mm: Use hugetlb_bad_size

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@...cle.com>
Reviewed-by: Mike Kravetz <mike.kravetz@...cle.com>
Reviewed-by: Naoya Horiguchi <n-horiguchi@...jp.nec.com>
Cc: Hillf Danton <hillf.zj@...baba-inc.com>
Cc: Michal Hocko <mhocko@...e.com>
Cc: Yaowei Bai <baiyaowei@...s.chinamobile.com>
Cc: Dominik Dingel <dingel@...ux.vnet.ibm.com>
Cc: Kirill A. Shutemov <kirill.shutemov@...ux.intel.com>
Cc: Paul Gortmaker <paul.gortmaker@...driver.com>
Cc: Dave Hansen <dave.hansen@...ux.intel.com>
---
Please note that the patch is tested for x86 only. But as this
is one line change I just changed them all. So, it would be good
if the patch can be tested for other architectures before adding
this in to mainline.
Changes since v1:
	- Separate different arch specific changes in different
	  patches instead of one
---
 arch/arm64/mm/hugetlbpage.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/arch/arm64/mm/hugetlbpage.c b/arch/arm64/mm/hugetlbpage.c
index 589fd28..aa8aee7 100644
--- a/arch/arm64/mm/hugetlbpage.c
+++ b/arch/arm64/mm/hugetlbpage.c
@@ -307,6 +307,7 @@ static __init int setup_hugepagesz(char *opt)
 	} else if (ps == PUD_SIZE) {
 		hugetlb_add_hstate(PUD_SHIFT - PAGE_SHIFT);
 	} else {
+		hugetlb_bad_size();
 		pr_err("hugepagesz: Unsupported page size %lu K\n", ps >> 10);
 		return 0;
 	}
-- 
2.1.4