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authorLinus Torvalds <torvalds@linux-foundation.org>2013-04-30 07:50:17 -0700
committerLinus Torvalds <torvalds@linux-foundation.org>2013-04-30 07:50:17 -0700
commit8700c95adb033843fc163d112b9d21d4fda78018 (patch)
tree7bb9a37b8fe6328f63a61d88063c556346001098 /arch/alpha
parent16fa94b532b1958f508e07eca1a9256351241fbc (diff)
parentd190e8195b90bc1e65c494fe08e54e9e581bfd16 (diff)
Merge branch 'smp-hotplug-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull SMP/hotplug changes from Ingo Molnar: "This is a pretty large, multi-arch series unifying and generalizing the various disjunct pieces of idle routines that architectures have historically copied from each other and have grown in random, wildly inconsistent and sometimes buggy directions: 101 files changed, 455 insertions(+), 1328 deletions(-) this went through a number of review and test iterations before it was committed, it was tested on various architectures, was exposed to linux-next for quite some time - nevertheless it might cause problems on architectures that don't read the mailing lists and don't regularly test linux-next. This cat herding excercise was motivated by the -rt kernel, and was brought to you by Thomas "the Whip" Gleixner." * 'smp-hotplug-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: (40 commits) idle: Remove GENERIC_IDLE_LOOP config switch um: Use generic idle loop ia64: Make sure interrupts enabled when we "safe_halt()" sparc: Use generic idle loop idle: Remove unused ARCH_HAS_DEFAULT_IDLE bfin: Fix typo in arch_cpu_idle() xtensa: Use generic idle loop x86: Use generic idle loop unicore: Use generic idle loop tile: Use generic idle loop tile: Enter idle with preemption disabled sh: Use generic idle loop score: Use generic idle loop s390: Use generic idle loop powerpc: Use generic idle loop parisc: Use generic idle loop openrisc: Use generic idle loop mn10300: Use generic idle loop mips: Use generic idle loop microblaze: Use generic idle loop ...
Diffstat (limited to 'arch/alpha')
-rw-r--r--arch/alpha/include/asm/thread_info.h2
-rw-r--r--arch/alpha/kernel/process.c19
-rw-r--r--arch/alpha/kernel/smp.c3
3 files changed, 1 insertions, 23 deletions
diff --git a/arch/alpha/include/asm/thread_info.h b/arch/alpha/include/asm/thread_info.h
index 1f8c72959fb6..52cd2a4a3ff4 100644
--- a/arch/alpha/include/asm/thread_info.h
+++ b/arch/alpha/include/asm/thread_info.h
@@ -95,8 +95,6 @@ register struct thread_info *__current_thread_info __asm__("$8");
#define TS_POLLING 0x0010 /* idle task polling need_resched,
skip sending interrupt */
-#define tsk_is_polling(t) (task_thread_info(t)->status & TS_POLLING)
-
#ifndef __ASSEMBLY__
#define HAVE_SET_RESTORE_SIGMASK 1
static inline void set_restore_sigmask(void)
diff --git a/arch/alpha/kernel/process.c b/arch/alpha/kernel/process.c
index 63d27fb9b023..a3fd8a29ccac 100644
--- a/arch/alpha/kernel/process.c
+++ b/arch/alpha/kernel/process.c
@@ -46,25 +46,6 @@
void (*pm_power_off)(void) = machine_power_off;
EXPORT_SYMBOL(pm_power_off);
-void
-cpu_idle(void)
-{
- current_thread_info()->status |= TS_POLLING;
-
- while (1) {
- /* FIXME -- EV6 and LCA45 know how to power down
- the CPU. */
-
- rcu_idle_enter();
- while (!need_resched())
- cpu_relax();
-
- rcu_idle_exit();
- schedule_preempt_disabled();
- }
-}
-
-
struct halt_info {
int mode;
char *restart_cmd;
diff --git a/arch/alpha/kernel/smp.c b/arch/alpha/kernel/smp.c
index 9603bc234b47..7b60834fb4b2 100644
--- a/arch/alpha/kernel/smp.c
+++ b/arch/alpha/kernel/smp.c
@@ -167,8 +167,7 @@ smp_callin(void)
cpuid, current, current->active_mm));
preempt_disable();
- /* Do nothing. */
- cpu_idle();
+ cpu_startup_entry(CPUHP_ONLINE);
}
/* Wait until hwrpb->txrdy is clear for cpu. Return -1 on timeout. */