path: root/lib
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authorSri Krishna chowdary <schowdary@nvidia.com>2018-12-28 00:38:54 -0800
committerLinus Torvalds <torvalds@linux-foundation.org>2018-12-28 12:11:51 -0800
commitd53ce042277a94eadf9a8a31fc41fac54c67dec5 (patch)
tree3da438e716f60f459fead3af0ef0279ad80778c2 /lib
parent3c0c12cc8f00ca5f81acb010023b8eb13e9a7004 (diff)
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 <schowdary@nvidia.com> Signed-off-by: Sachin Nikam <snikam@nvidia.com> Signed-off-by: Prateek <prpatel@nvidia.com> Reviewed-by: Catalin Marinas <catalin.marinas@arm.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'lib')
1 files changed, 15 insertions, 0 deletions
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.
+ 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.
bool "Stack utilization instrumentation"
depends on DEBUG_KERNEL && !IA64