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authorIngo Molnar <mingo@elte.hu>2009-01-23 10:20:15 +0100
committerIngo Molnar <mingo@elte.hu>2009-01-23 10:20:15 +0100
commitbfe2a3c3b5bf479788d5d5c5561346be6b169043 (patch)
tree652c987279db7cd841d556f7bb1a589b57fbd6cc /include/linux/sched.h
parent77835492ed489c0b870f82f4c50687bd267acc0a (diff)
parent35d266a24796f02f63299cfe5009dfc0d5a0e820 (diff)
downloadop-kernel-dev-bfe2a3c3b5bf479788d5d5c5561346be6b169043.zip
op-kernel-dev-bfe2a3c3b5bf479788d5d5c5561346be6b169043.tar.gz
Merge branch 'core/percpu' into perfcounters/core
Conflicts: arch/x86/include/asm/hardirq_32.h arch/x86/include/asm/hardirq_64.h Semantic merge: arch/x86/include/asm/hardirq.h [ added apic_perf_irqs field. ] Signed-off-by: Ingo Molnar <mingo@elte.hu>
Diffstat (limited to 'include/linux/sched.h')
-rw-r--r--include/linux/sched.h16
1 files changed, 14 insertions, 2 deletions
diff --git a/include/linux/sched.h b/include/linux/sched.h
index f134a0f7..b85b10a 100644
--- a/include/linux/sched.h
+++ b/include/linux/sched.h
@@ -1159,10 +1159,9 @@ struct task_struct {
pid_t pid;
pid_t tgid;
-#ifdef CONFIG_CC_STACKPROTECTOR
/* Canary value for the -fstack-protector gcc feature */
unsigned long stack_canary;
-#endif
+
/*
* pointers to (original) parent process, youngest child, younger sibling,
* older sibling, respectively. (p->father can be replaced with
@@ -2069,6 +2068,19 @@ static inline int object_is_on_stack(void *obj)
extern void thread_info_cache_init(void);
+#ifdef CONFIG_DEBUG_STACK_USAGE
+static inline unsigned long stack_not_used(struct task_struct *p)
+{
+ unsigned long *n = end_of_stack(p);
+
+ do { /* Skip over canary */
+ n++;
+ } while (!*n);
+
+ return (unsigned long)n - (unsigned long)end_of_stack(p);
+}
+#endif
+
/* set thread flags in other task's structures
* - see asm/thread_info.h for TIF_xxxx flags available
*/
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