[PATCH 09/11] sched/wait,mips: Fix and replace wait_on_atomic_t usage

[Peter Zijlstra]

Convert the wait_on_atomic_t() usage to the new wait_var_event() API.

And while there, add the missing wakeup...

Cc: James Hogan <jho...@kernel.org>
Cc: Ralf Baechle <r...@linux-mips.org>
Signed-off-by: Peter Zijlstra (Intel) <pet...@infradead.org>
---
 arch/mips/kernel/process.c |    2 ++
 arch/mips/kernel/traps.c   |    4 ++--
 2 files changed, 4 insertions(+), 2 deletions(-)

--- a/arch/mips/kernel/process.c
+++ b/arch/mips/kernel/process.c
@@ -781,6 +781,8 @@ int mips_set_process_fp_mode(struct task
        atomic_set(&task->mm->context.fp_mode_switching, 0);
        preempt_enable();
 
+       wake_up_var(&task->mm->context.fp_mode_switching);
+
        return 0;
 }
 
--- a/arch/mips/kernel/traps.c
+++ b/arch/mips/kernel/traps.c
@@ -1248,8 +1248,8 @@ static int enable_restore_fp_context(int
         * If an FP mode switch is currently underway, wait for it to
         * complete before proceeding.
         */
-       wait_on_atomic_t(&current->mm->context.fp_mode_switching,
-                        atomic_t_wait, TASK_KILLABLE);
+       wait_var_event(&current->mm->context.fp_mode_switching,
+                      !atomic_read(&current->mm->context.fp_mode_switching));
 
        if (!used_math()) {
                /* First time FP context user. */