diff options
| author | Vignesh Radhakrishnan <vigneshr@codeaurora.org> | 2015-01-22 11:43:45 +0530 |
|---|---|---|
| committer | David Keitel <dkeitel@codeaurora.org> | 2016-03-22 11:03:48 -0700 |
| commit | 07ca3d98c661ab40512c8ac8416bb9ff782247a7 (patch) | |
| tree | 2949acd44de36a403f6da63f1e3f5321aca550e6 /lib | |
| parent | 12471ac6f8a09d594cbe8c4f0fa4f424eb7d29ac (diff) | |
kmemleak : Make kmemleak_stack_scan optional using config
Currently we have kmemleak_stack_scan enabled by default.
This can hog the cpu with pre-emption disabled for a long
time starving other tasks.
Make this optional at compile time, since if required
we can always write to sysfs entry and enable this option.
Change-Id: Ie30447861c942337c7ff25ac269b6025a527e8eb
Signed-off-by: Vignesh Radhakrishnan <vigneshr@codeaurora.org>
Signed-off-by: Prasad Sodagudi <psodagud@codeaurora.org>
Diffstat (limited to 'lib')
| -rw-r--r-- | lib/Kconfig.debug | 9 |
1 files changed, 9 insertions, 0 deletions
diff --git a/lib/Kconfig.debug b/lib/Kconfig.debug index 5a37e2e7bbce..d899d0da595f 100644 --- a/lib/Kconfig.debug +++ b/lib/Kconfig.debug @@ -928,6 +928,15 @@ config DEBUG_TASK_STACK_SCAN_OFF writing to the debugfs entry : echo "stack=on" > /sys/kernel/debug/kmemleak. +config DEBUG_TASK_STACK_SCAN_OFF + bool "Disable kmemleak task stack scan by default" + depends on DEBUG_KMEMLEAK + help + Say Y here to disable kmemleak task stack scan by default + at compile time. It can be enabled later if required by + writing to the debugfs entry : + echo "stack=on" > /sys/kernel/debug/kmemleak. + config DEBUG_PREEMPT bool "Debug preemptible kernel" depends on DEBUG_KERNEL && PREEMPT && TRACE_IRQFLAGS_SUPPORT |