>From 615b965ad33e4a18a8b977243024ef5911d2272c Mon Sep 17 00:00:00 2001 From: Wanpeng Li Date: Mon, 26 Aug 2013 11:44:50 +0800 Subject: [PATCH v4 9/10] mm/hwpoison: change permission of corrupt-pfn/unpoison-pfn to 0200 Hwpoison inject doesn't implement read method for corrupt-pfn/unpoison-pfn attributes: # cat /sys/kernel/debug/hwpoison/corrupt-pfn cat: /sys/kernel/debug/hwpoison/corrupt-pfn: Permission denied # cat /sys/kernel/debug/hwpoison/unpoison-pfn cat: /sys/kernel/debug/hwpoison/unpoison-pfn: Permission denied This patch change the permission of corrupt-pfn/unpoison-pfn to 0200. Signed-off-by: Wanpeng Li --- mm/hwpoison-inject.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/mm/hwpoison-inject.c b/mm/hwpoison-inject.c index 3a61efc..8b77bfd 100644 --- a/mm/hwpoison-inject.c +++ b/mm/hwpoison-inject.c @@ -88,12 +88,12 @@ static int pfn_inject_init(void) * hardware status change, hence do not require hardware support. * They are mainly for testing hwpoison in software level. */ - dentry = debugfs_create_file("corrupt-pfn", 0600, hwpoison_dir, + dentry = debugfs_create_file("corrupt-pfn", 0200, hwpoison_dir, NULL, &hwpoison_fops); if (!dentry) goto fail; - dentry = debugfs_create_file("unpoison-pfn", 0600, hwpoison_dir, + dentry = debugfs_create_file("unpoison-pfn", 0200, hwpoison_dir, NULL, &unpoison_fops); if (!dentry) goto fail; -- 1.8.1.2