From: Catalin Marinas <catalin.marinas@arm.com>
Date: Fri, 20 Jan 2012 10:42:40 +0000 (+0000)
Subject: kmemleak: Disable early logging when kmemleak is off by default
X-Git-Url: https://git.stricted.de/?a=commitdiff_plain;h=b370d29ea7565a638ccf85389488364b5abb39fa;p=GitHub%2Fmoto-9609%2Fandroid_kernel_motorola_exynos9610.git

kmemleak: Disable early logging when kmemleak is off by default

Commit b6693005 (kmemleak: When the early log buffer is exceeded, report
the actual number) deferred the disabling of the early logging to
kmemleak_init(). However, when CONFIG_DEBUG_KMEMLEAK_DEFAULT_OFF=y, the
early logging was no longer disabled causing __init kmemleak functions
to be called even after the kernel freed the init memory. This patch
disables the early logging during kmemleak_init() if kmemleak is left
disabled.

Reported-by: Dirk Gouders <gouders@et.bocholt.fh-gelsenkirchen.de>
Tested-by: Dirk Gouders <gouders@et.bocholt.fh-gelsenkirchen.de>
Tested-by: Josh Boyer <jwboyer@gmail.com>
Signed-off-by: Catalin Marinas <catalin.marinas@arm.com>
---

diff --git a/mm/kmemleak.c b/mm/kmemleak.c
index f9f7310f0fdb..45eb6217bf38 100644
--- a/mm/kmemleak.c
+++ b/mm/kmemleak.c
@@ -1757,6 +1757,7 @@ void __init kmemleak_init(void)
 
 #ifdef CONFIG_DEBUG_KMEMLEAK_DEFAULT_OFF
 	if (!kmemleak_skip_disable) {
+		atomic_set(&kmemleak_early_log, 0);
 		kmemleak_disable();
 		return;
 	}