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| author | Dave Airlie <airlied@redhat.com> | 2015-10-16 10:10:32 +1000 |
|---|---|---|
| committer | Dave Airlie <airlied@redhat.com> | 2015-10-16 10:25:28 +1000 |
| commit | 48f87dd146a480c723774962eca675873a8aa1da (patch) | |
| tree | 71461989ebe8a20258ca4b0be341b755594a2b0b /arch/x86/kernel/process_32.c | |
| parent | 6b62b3e134676687d5d666e6edc3b45f1507b2b7 (diff) | |
| parent | 06d1ee32a4d25356a710b49d5e95dbdd68bdf505 (diff) | |
Merge commit '06d1ee32a4d25356a710b49d5e95dbdd68bdf505' of git://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux into drm-next
Backmerge the drm-fixes pull from Linus's tree into drm-next.
This is to fix some conflicts and make future pulls cleaner
Diffstat (limited to 'arch/x86/kernel/process_32.c')
| -rw-r--r-- | arch/x86/kernel/process_32.c | 28 |
1 files changed, 0 insertions, 28 deletions
diff --git a/arch/x86/kernel/process_32.c b/arch/x86/kernel/process_32.c index c13df2c735f8..737527b40e5b 100644 --- a/arch/x86/kernel/process_32.c +++ b/arch/x86/kernel/process_32.c @@ -324,31 +324,3 @@ __switch_to(struct task_struct *prev_p, struct task_struct *next_p) return prev_p; } - -#define top_esp (THREAD_SIZE - sizeof(unsigned long)) -#define top_ebp (THREAD_SIZE - 2*sizeof(unsigned long)) - -unsigned long get_wchan(struct task_struct *p) -{ - unsigned long bp, sp, ip; - unsigned long stack_page; - int count = 0; - if (!p || p == current || p->state == TASK_RUNNING) - return 0; - stack_page = (unsigned long)task_stack_page(p); - sp = p->thread.sp; - if (!stack_page || sp < stack_page || sp > top_esp+stack_page) - return 0; - /* include/asm-i386/system.h:switch_to() pushes bp last. */ - bp = *(unsigned long *) sp; - do { - if (bp < stack_page || bp > top_ebp+stack_page) - return 0; - ip = *(unsigned long *) (bp+4); - if (!in_sched_functions(ip)) - return ip; - bp = *(unsigned long *) bp; - } while (count++ < 16); - return 0; -} - |