[PATCHv4 1/2] mm: move KMEMLEAK's Kconfig items from lib to mm

zhaoyang.huang
2023-01-19T01:29:09Z

From: Zhaoyang Huang <zhaoyang.huang@unisoc.com>

Have the kmemleak's source code and Kconfig items be in the same directory.

Signed-off-by: Zhaoyang Huang <zhaoyang.huang@unisoc.com>
---
lib/Kconfig.debug | 70 -------------------------------------------------------
mm/Kconfig.debug | 70 +++++++++++++++++++++++++++++++++++++++++++++++++++++++
2 files changed, 70 insertions(+), 70 deletions(-)

diff --git a/lib/Kconfig.debug b/lib/Kconfig.debug
index 401ad4b..62884ac 100644
--- a/lib/Kconfig.debug
+++ b/lib/Kconfig.debug
@@ -716,76 +716,6 @@ config SHRINKER_DEBUG
visibility into the kernel memory shrinkers subsystem.
Disable it to avoid an extra memory footprint.

-config HAVE_DEBUG_KMEMLEAK
- bool
-
-config DEBUG_KMEMLEAK
- bool "Kernel memory leak detector"
- depends on DEBUG_KERNEL && HAVE_DEBUG_KMEMLEAK
- select DEBUG_FS
- select STACKTRACE if STACKTRACE_SUPPORT
- select KALLSYMS
- select CRC32
- select STACKDEPOT
- help
- Say Y here if you want to enable the memory leak
- detector. The memory allocation/freeing is traced in a way
- similar to the Boehm's conservative garbage collector, the
- difference being that the orphan objects are not freed but
- only shown in /sys/kernel/debug/kmemleak. Enabling this
- feature will introduce an overhead to memory
- allocations. See Documentation/dev-tools/kmemleak.rst for more
- details.
-
- Enabling DEBUG_SLAB or SLUB_DEBUG may increase the chances
- of finding leaks due to the slab objects poisoning.
-
- In order to access the kmemleak file, debugfs needs to be
- mounted (usually at /sys/kernel/debug).
-
-config DEBUG_KMEMLEAK_MEM_POOL_SIZE
- int "Kmemleak memory pool size"
- depends on DEBUG_KMEMLEAK
- range 200 1000000
- default 16000
- help
- Kmemleak must track all the memory allocations to avoid
- reporting false positives. Since memory may be allocated or
- freed before kmemleak is fully initialised, use a static pool
- of metadata objects to track such callbacks. After kmemleak is
- fully initialised, this memory pool acts as an emergency one
- if slab allocations fail.
-
-config DEBUG_KMEMLEAK_TEST
- tristate "Simple test for the kernel memory leak detector"
- depends on DEBUG_KMEMLEAK && m
- help
- This option enables a module that explicitly leaks memory.
-
- If unsure, say N.
-
-config DEBUG_KMEMLEAK_DEFAULT_OFF
- bool "Default kmemleak to off"
- depends on DEBUG_KMEMLEAK
- help
- 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
diff --git a/mm/Kconfig.debug b/mm/Kconfig.debug
index ce8dded..d1893ac 100644
--- a/mm/Kconfig.debug
+++ b/mm/Kconfig.debug
@@ -207,3 +207,73 @@ config PTDUMP_DEBUGFS
kernel.

If in doubt, say N.
+
+config HAVE_DEBUG_KMEMLEAK
+ bool
+
+config DEBUG_KMEMLEAK
+ bool "Kernel memory leak detector"
+ depends on DEBUG_KERNEL && HAVE_DEBUG_KMEMLEAK
+ select DEBUG_FS
+ select STACKTRACE if STACKTRACE_SUPPORT
+ select KALLSYMS
+ select CRC32
+ select STACKDEPOT
+ help
+ Say Y here if you want to enable the memory leak
+ detector. The memory allocation/freeing is traced in a way
+ similar to the Boehm's conservative garbage collector, the
+ difference being that the orphan objects are not freed but
+ only shown in /sys/kernel/debug/kmemleak. Enabling this
+ feature will introduce an overhead to memory
+ allocations. See Documentation/dev-tools/kmemleak.rst for more
+ details.
+
+ Enabling DEBUG_SLAB or SLUB_DEBUG may increase the chances
+ of finding leaks due to the slab objects poisoning.
+
+ In order to access the kmemleak file, debugfs needs to be
+ mounted (usually at /sys/kernel/debug).
+
+config DEBUG_KMEMLEAK_MEM_POOL_SIZE
+ int "Kmemleak memory pool size"
+ depends on DEBUG_KMEMLEAK
+ range 200 1000000
+ default 16000
+ help
+ Kmemleak must track all the memory allocations to avoid
+ reporting false positives. Since memory may be allocated or
+ freed before kmemleak is fully initialised, use a static pool
+ of metadata objects to track such callbacks. After kmemleak is
+ fully initialised, this memory pool acts as an emergency one
+ if slab allocations fail.
+
+config DEBUG_KMEMLEAK_TEST
+ tristate "Simple test for the kernel memory leak detector"
+ depends on DEBUG_KMEMLEAK && m
+ help
+ This option enables a module that explicitly leaks memory.
+
+ If unsure, say N.
+
+config DEBUG_KMEMLEAK_DEFAULT_OFF
+ bool "Default kmemleak to off"
+ depends on DEBUG_KMEMLEAK
+ help
+ 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.
--
1.9.1