diff options
| author |   Jeff Dike <jdike@addtoit.com> | 2007-07-15 23:38:48 -0700 |
|---|---|---|
| committer |   Linus Torvalds <torvalds@woody.linux-foundation.org> | 2007-07-16 09:05:38 -0700 |
| commit | e18eecb8b35703a5eea73ee2b45324262029e62c (patch) | |
| tree | 8c276ae6633b8116ca366274091b00491fd50bbe /include/asm-um | |
| parent | uml: use get_free_pages to allocate kernel stacks (diff) | |
| download | linux-dev-e18eecb8b35703a5eea73ee2b45324262029e62c.tar.xz linux-dev-e18eecb8b35703a5eea73ee2b45324262029e62c.zip | |
Add generic exit-time stack-depth checking to CONFIG_DEBUG_STACK_USAGE
Add generic exit-time stack-depth checking to CONFIG_DEBUG_STACK_USAGE.
This also adds UML support.
Tested on UML and i386.
[akpm@linux-foundation.org: cleanups, speedups, tweaks]
Signed-off-by: Jeff Dike <jdike@linux.intel.com>
Cc: Oleg Nesterov <oleg@tv-sign.ru>
Cc: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'include/asm-um')
| -rw-r--r-- | include/asm-um/thread_info.h | 9 |
1 files changed, 9 insertions, 0 deletions
diff --git a/include/asm-um/thread_info.h b/include/asm-um/thread_info.h index 07aa4e50e4d0..6e5fd5c892d0 100644 --- a/include/asm-um/thread_info.h +++ b/include/asm-um/thread_info.h @@ -52,10 +52,19 @@ static inline struct thread_info *current_thread_info(void) return ti; } +#ifdef CONFIG_DEBUG_STACK_USAGE + +#define alloc_thread_info(tsk) \ + ((struct thread_info *) __get_free_pages(GFP_KERNEL | __GFP_ZERO, \ + CONFIG_KERNEL_STACK_ORDER)) +#else + /* thread information allocation */ #define alloc_thread_info(tsk) \ ((struct thread_info *) __get_free_pages(GFP_KERNEL, \ CONFIG_KERNEL_STACK_ORDER)) +#endif + #define free_thread_info(ti) \ free_pages((unsigned long)(ti),CONFIG_KERNEL_STACK_ORDER) |