From d53ce042277a94eadf9a8a31fc41fac54c67dec5 Mon Sep 17 00:00:00 2001 From: Sri Krishna chowdary Date: Fri, 28 Dec 2018 00:38:54 -0800 Subject: kmemleak: add config to select auto scan Kmemleak scan can be cpu intensive and can stall user tasks at times. To prevent this, add config DEBUG_KMEMLEAK_AUTO_SCAN to enable/disable auto scan on boot up. Also protect first_run with DEBUG_KMEMLEAK_AUTO_SCAN as this is meant for only first automatic scan. Link: http://lkml.kernel.org/r/1540231723-7087-1-git-send-email-prpatel@nvidia.com Signed-off-by: Sri Krishna chowdary Signed-off-by: Sachin Nikam Signed-off-by: Prateek Reviewed-by: Catalin Marinas Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- lib/Kconfig.debug | 15 +++++++++++++++ 1 file changed, 15 insertions(+) (limited to 'lib') diff --git a/lib/Kconfig.debug b/lib/Kconfig.debug index b3c91b9e32f8..2b5a4256e88b 100644 --- a/lib/Kconfig.debug +++ b/lib/Kconfig.debug @@ -593,6 +593,21 @@ config DEBUG_KMEMLEAK_DEFAULT_OFF Say Y here to disable kmemleak by default. It can then be enabled on the command line via kmemleak=on. +config DEBUG_KMEMLEAK_AUTO_SCAN + bool "Enable kmemleak auto scan thread on boot up" + default y + depends on DEBUG_KMEMLEAK + help + Depending on the cpu, kmemleak scan may be cpu intensive and can + stall user tasks at times. This option enables/disables automatic + kmemleak scan at boot up. + + Say N here to disable kmemleak auto scan thread to stop automatic + scanning. Disabling this option disables automatic reporting of + memory leaks. + + If unsure, say Y. + config DEBUG_STACK_USAGE bool "Stack utilization instrumentation" depends on DEBUG_KERNEL && !IA64 -- cgit v1.2.3