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| author | Linus Torvalds <torvalds@linux-foundation.org> | 2018-04-03 02:50:39 +0300 |
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2018-04-03 02:50:39 +0300 |
| commit | ce6eba3dba366b607c0a363c7cdbd4ee8fcc6434 (patch) | |
| tree | 7e8bb291ce843457c52659dfa4a5d14444c91c35 /arch/mips/kernel | |
| parent | a5532439ebab93e47784effb96aafa7d7ba4b760 (diff) | |
| parent | b3fc5c9bb373661224906bf434c09ca0de032e82 (diff) | |
| download | linux-ce6eba3dba366b607c0a363c7cdbd4ee8fcc6434.tar.xz | |
Merge branch 'sched-wait-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull wait_var_event updates from Ingo Molnar:
"This introduces the new wait_var_event() API, which is a more flexible
waiting primitive than wait_on_atomic_t().
All wait_on_atomic_t() users are migrated over to the new API and
wait_on_atomic_t() is removed. The migration fixes one bug and should
result in no functional changes for the other usecases"
* 'sched-wait-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
sched/wait: Improve __var_waitqueue() code generation
sched/wait: Remove the wait_on_atomic_t() API
sched/wait, arch/mips: Fix and convert wait_on_atomic_t() usage to the new wait_var_event() API
sched/wait, fs/ocfs2: Convert wait_on_atomic_t() usage to the new wait_var_event() API
sched/wait, fs/nfs: Convert wait_on_atomic_t() usage to the new wait_var_event() API
sched/wait, fs/fscache: Convert wait_on_atomic_t() usage to the new wait_var_event() API
sched/wait, fs/btrfs: Convert wait_on_atomic_t() usage to the new wait_var_event() API
sched/wait, fs/afs: Convert wait_on_atomic_t() usage to the new wait_var_event() API
sched/wait, drivers/media: Convert wait_on_atomic_t() usage to the new wait_var_event() API
sched/wait, drivers/drm: Convert wait_on_atomic_t() usage to the new wait_var_event() API
sched/wait: Introduce wait_var_event()
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. */ |