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| author | Peter Zijlstra <peterz@infradead.org> | 2018-03-15 11:45:44 +0100 |
|---|---|---|
| committer | Ingo Molnar <mingo@kernel.org> | 2018-03-20 08:23:23 +0100 |
| commit | 6887a56b6e8ef5daf1160f2ebe5cbe38fd8819a2 (patch) | |
| tree | f618aea7ea09bfddc275ff0eab7d1cb3673a3489 /arch/mips/kernel | |
| parent | sched/wait, fs/ocfs2: Convert wait_on_atomic_t() usage to the new wait_var_ev... (diff) | |
| download | linux-6887a56b6e8ef5daf1160f2ebe5cbe38fd8819a2.tar.xz linux-6887a56b6e8ef5daf1160f2ebe5cbe38fd8819a2.zip | |
sched/wait, arch/mips: Fix and convert wait_on_atomic_t() usage to the new wait_var_event() API
The old wait_on_atomic_t() is going to get removed, use the more
flexible wait_var_event() API instead.
And while there, fix a bug and add the missing wakeup...
Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Cc: James Hogan <jhogan@kernel.org>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Cc: Mike Galbraith <efault@gmx.de>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Ralf Baechle <ralf@linux-mips.org>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: linux-kernel@vger.kernel.org
Signed-off-by: Ingo Molnar <mingo@kernel.org>
Diffstat (limited to 'arch/mips/kernel')
| -rw-r--r-- | arch/mips/kernel/process.c | 2 | ||||
| -rw-r--r-- | arch/mips/kernel/traps.c | 4 |
2 files changed, 4 insertions, 2 deletions
diff --git a/arch/mips/kernel/process.c b/arch/mips/kernel/process.c index 57028d49c202..b9e9bf628849 100644 --- a/arch/mips/kernel/process.c +++ b/arch/mips/kernel/process.c @@ -781,6 +781,8 @@ int mips_set_process_fp_mode(struct task_struct *task, unsigned int value) atomic_set(&task->mm->context.fp_mode_switching, 0); preempt_enable(); + wake_up_var(&task->mm->context.fp_mode_switching); + return 0; } diff --git a/arch/mips/kernel/traps.c b/arch/mips/kernel/traps.c index 0ae4a731cc12..967e9e4e795e 100644 --- a/arch/mips/kernel/traps.c +++ b/arch/mips/kernel/traps.c @@ -1248,8 +1248,8 @@ static int enable_restore_fp_context(int msa) * If an FP mode switch is currently underway, wait for it to * complete before proceeding. */ - wait_on_atomic_t(¤t->mm->context.fp_mode_switching, - atomic_t_wait, TASK_KILLABLE); + wait_var_event(¤t->mm->context.fp_mode_switching, + !atomic_read(¤t->mm->context.fp_mode_switching)); if (!used_math()) { /* First time FP context user. */ |