kernel-hacking: move SCHED_STACK_END_CHECK after DEBUG_STACK_USAGE

They are both memory debug options to debug kernel stack issues.

Link: http://lkml.kernel.org/r/20190909144453.3520-7-changbin.du@gmail.com
Signed-off-by: Changbin Du <changbin.du@gmail.com>
Acked-by: Randy Dunlap <rdunlap@infradead.org>
Tested-by: Randy Dunlap <rdunlap@infradead.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

diff --git a/lib/Kconfig.debug b/lib/Kconfig.debug
index 4c84878..a02afa6 100644 (file)
--- a/lib/Kconfig.debug
+++ b/lib/Kconfig.debug
@@ -632,6 +632,18 @@ config DEBUG_STACK_USAGE
 
          This option will slow down process creation somewhat.
 
+config SCHED_STACK_END_CHECK
+       bool "Detect stack corruption on calls to schedule()"
+       depends on DEBUG_KERNEL
+       default n
+       help
+         This option checks for a stack overrun on calls to schedule().
+         If the stack end location is found to be over written always panic as
+         the content of the corrupted region can no longer be trusted.
+         This is to ensure no erroneous behaviour occurs which could result in
+         data corruption or a sporadic crash at a later stage once the region
+         is examined. The runtime overhead introduced is minimal.
+
 config DEBUG_VM
        bool "Debug VM"
        depends on DEBUG_KERNEL
@@ -985,18 +997,6 @@ config SCHEDSTATS
          application, you can say N to avoid the very slight overhead
          this adds.
 
-config SCHED_STACK_END_CHECK
-       bool "Detect stack corruption on calls to schedule()"
-       depends on DEBUG_KERNEL
-       default n
-       help
-         This option checks for a stack overrun on calls to schedule().
-         If the stack end location is found to be over written always panic as
-         the content of the corrupted region can no longer be trusted.
-         This is to ensure no erroneous behaviour occurs which could result in
-         data corruption or a sporadic crash at a later stage once the region
-         is examined. The runtime overhead introduced is minimal.
-
 config DEBUG_TIMEKEEPING
        bool "Enable extra timekeeping sanity checking"
        help