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authorLinus Torvalds <torvalds@linux-foundation.org>2012-05-21 19:43:57 -0700
committerLinus Torvalds <torvalds@linux-foundation.org>2012-05-21 19:43:57 -0700
commitbf67f3a5c456a18f2e8d062f7e88506ef2cd9837 (patch)
tree2a2324b2572162059307db82f9238eeb25673a77 /include
parent226da0dbc84ed97f448523e2a4cb91c27fa68ed9 (diff)
parent203dacbdca977bedaba61ad2fca75d934060a5d5 (diff)
downloadlinux-bf67f3a5c456a18f2e8d062f7e88506ef2cd9837.tar.gz
Merge branch 'smp-hotplug-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull smp hotplug cleanups from Thomas Gleixner: "This series is merily a cleanup of code copied around in arch/* and not changing any of the real cpu hotplug horrors yet. I wish I'd had something more substantial for 3.5, but I underestimated the lurking horror..." Fix up trivial conflicts in arch/{arm,sparc,x86}/Kconfig and arch/sparc/include/asm/thread_info_32.h * 'smp-hotplug-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: (79 commits) um: Remove leftover declaration of alloc_task_struct_node() task_allocator: Use config switches instead of magic defines sparc: Use common threadinfo allocator score: Use common threadinfo allocator sh-use-common-threadinfo-allocator mn10300: Use common threadinfo allocator powerpc: Use common threadinfo allocator mips: Use common threadinfo allocator hexagon: Use common threadinfo allocator m32r: Use common threadinfo allocator frv: Use common threadinfo allocator cris: Use common threadinfo allocator x86: Use common threadinfo allocator c6x: Use common threadinfo allocator fork: Provide kmemcache based thread_info allocator tile: Use common threadinfo allocator fork: Provide weak arch_release_[task_struct|thread_info] functions fork: Move thread info gfp flags to header fork: Remove the weak insanity sh: Remove cpu_idle_wait() ...
Diffstat (limited to 'include')
-rw-r--r--include/linux/smp.h6
-rw-r--r--include/linux/thread_info.h6
2 files changed, 11 insertions, 1 deletions
diff --git a/include/linux/smp.h b/include/linux/smp.h
index 10530d92c04..717fb746c9a 100644
--- a/include/linux/smp.h
+++ b/include/linux/smp.h
@@ -61,7 +61,7 @@ extern void smp_prepare_cpus(unsigned int max_cpus);
/*
* Bring a CPU up
*/
-extern int __cpu_up(unsigned int cpunum);
+extern int __cpu_up(unsigned int cpunum, struct task_struct *tidle);
/*
* Final polishing of CPUs
@@ -81,6 +81,8 @@ void __smp_call_function_single(int cpuid, struct call_single_data *data,
int smp_call_function_any(const struct cpumask *mask,
smp_call_func_t func, void *info, int wait);
+void kick_all_cpus_sync(void);
+
/*
* Generic and arch helpers
*/
@@ -192,6 +194,8 @@ smp_call_function_any(const struct cpumask *mask, smp_call_func_t func,
return smp_call_function_single(0, func, info, wait);
}
+static inline void kick_all_cpus_sync(void) { }
+
#endif /* !SMP */
/*
diff --git a/include/linux/thread_info.h b/include/linux/thread_info.h
index 8d03f079688..db78775eff3 100644
--- a/include/linux/thread_info.h
+++ b/include/linux/thread_info.h
@@ -54,6 +54,12 @@ extern long do_no_restart_syscall(struct restart_block *parm);
#ifdef __KERNEL__
+#ifdef CONFIG_DEBUG_STACK_USAGE
+# define THREADINFO_GFP (GFP_KERNEL | __GFP_NOTRACK | __GFP_ZERO)
+#else
+# define THREADINFO_GFP (GFP_KERNEL | __GFP_NOTRACK)
+#endif
+
/*
* flag set/clear/test wrappers
* - pass TIF_xxxx constants to these functions