nohz: prevent tick stop outside of the idle loop

[deliverable/linux.git] / arch / mips / kernel / process.c

diff --git a/arch/mips/kernel/process.c b/arch/mips/kernel/process.c
index f99bb4085430b82556a5f9e728bdeaff91d38c33..bdead3aad2537902cb35e75675ffe66fd08d7236 100644 (file)
--- a/arch/mips/kernel/process.c
+++ b/arch/mips/kernel/process.c
@@ -53,7 +53,7 @@ void __noreturn cpu_idle(void)
 {
        /* endless idle loop with no priority at all */
        while (1) {
-               tick_nohz_stop_sched_tick();
+               tick_nohz_stop_sched_tick(1);
                while (!need_resched()) {
 #ifdef CONFIG_SMTC_IDLE_HOOK_DEBUG
                        extern void smtc_idle_loop_hook(void);
@@ -77,9 +77,8 @@ void start_thread(struct pt_regs * regs, unsigned long pc, unsigned long sp)
        unsigned long status;
 
        /* New thread loses kernel privileges. */
-       status = regs->cp0_status & ~(ST0_CU0|ST0_CU1|KU_MASK);
+       status = regs->cp0_status & ~(ST0_CU0|ST0_CU1|ST0_FR|KU_MASK);
 #ifdef CONFIG_64BIT
-       status &= ~ST0_FR;
        status |= test_thread_flag(TIF_32BIT_REGS) ? 0 : ST0_FR;
 #endif
        status |= KU_USER;
@@ -202,13 +201,13 @@ void elf_dump_regs(elf_greg_t *gp, struct pt_regs *regs)
 #endif
 }
 
-int dump_task_regs (struct task_struct *tsk, elf_gregset_t *regs)
+int dump_task_regs(struct task_struct *tsk, elf_gregset_t *regs)
 {
        elf_dump_regs(*regs, task_pt_regs(tsk));
        return 1;
 }
 
-int dump_task_fpu (struct task_struct *t, elf_fpregset_t *fpr)
+int dump_task_fpu(struct task_struct *t, elf_fpregset_t *fpr)
 {
        memcpy(fpr, &t->thread.fpu, sizeof(current->thread.fpu));