From: Andi Kleen <andi@firstfloor.org>
Date: Wed, 16 Dec 2009 11:20:01 +0000 (+0100)
Subject: HWPOISON: Don't do early filtering if filter is disabled
X-Git-Url: https://git.karo-electronics.de/?a=commitdiff_plain;h=0d57eb8dfcb92e3dd928d792f4ed2b2fec680bb7;p=linux-beck.git

HWPOISON: Don't do early filtering if filter is disabled

Signed-off-by: Andi Kleen <ak@linux.intel.com>
---

diff --git a/mm/hwpoison-inject.c b/mm/hwpoison-inject.c
index a77fe3f9e211..10ea71905c1f 100644
--- a/mm/hwpoison-inject.c
+++ b/mm/hwpoison-inject.c
@@ -18,6 +18,8 @@ static int hwpoison_inject(void *data, u64 val)
 	if (!capable(CAP_SYS_ADMIN))
 		return -EPERM;
 
+	if (!hwpoison_filter_enable)
+		goto inject;
 	if (!pfn_valid(pfn))
 		return -ENXIO;
 
@@ -48,6 +50,7 @@ static int hwpoison_inject(void *data, u64 val)
 	if (err)
 		return 0;
 
+inject:
 	printk(KERN_INFO "Injecting memory failure at pfn %lx\n", pfn);
 	return __memory_failure(pfn, 18, MF_COUNT_INCREASED);
 }