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author | Linus Torvalds <torvalds@linux-foundation.org> | 2018-04-02 16:50:39 -0700 |
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committer | Linus Torvalds <torvalds@linux-foundation.org> | 2018-04-02 16:50:39 -0700 |
commit | ce6eba3dba366b607c0a363c7cdbd4ee8fcc6434 (patch) | |
tree | 7e8bb291ce843457c52659dfa4a5d14444c91c35 /drivers/gpu/drm/i915 | |
parent | a5532439ebab93e47784effb96aafa7d7ba4b760 (diff) | |
parent | b3fc5c9bb373661224906bf434c09ca0de032e82 (diff) | |
download | linux-ce6eba3dba366b607c0a363c7cdbd4ee8fcc6434.tar.bz2 |
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 'drivers/gpu/drm/i915')
-rw-r--r-- | drivers/gpu/drm/i915/selftests/intel_breadcrumbs.c | 14 |
1 files changed, 4 insertions, 10 deletions
diff --git a/drivers/gpu/drm/i915/selftests/intel_breadcrumbs.c b/drivers/gpu/drm/i915/selftests/intel_breadcrumbs.c index 54fc571b1102..46580026c7fc 100644 --- a/drivers/gpu/drm/i915/selftests/intel_breadcrumbs.c +++ b/drivers/gpu/drm/i915/selftests/intel_breadcrumbs.c @@ -271,18 +271,13 @@ struct igt_wakeup { u32 seqno; }; -static int wait_atomic_timeout(atomic_t *p, unsigned int mode) -{ - return schedule_timeout(10 * HZ) ? 0 : -ETIMEDOUT; -} - static bool wait_for_ready(struct igt_wakeup *w) { DEFINE_WAIT(ready); set_bit(IDLE, &w->flags); if (atomic_dec_and_test(w->done)) - wake_up_atomic_t(w->done); + wake_up_var(w->done); if (test_bit(STOP, &w->flags)) goto out; @@ -299,7 +294,7 @@ static bool wait_for_ready(struct igt_wakeup *w) out: clear_bit(IDLE, &w->flags); if (atomic_dec_and_test(w->set)) - wake_up_atomic_t(w->set); + wake_up_var(w->set); return !test_bit(STOP, &w->flags); } @@ -342,7 +337,7 @@ static void igt_wake_all_sync(atomic_t *ready, atomic_set(ready, 0); wake_up_all(wq); - wait_on_atomic_t(set, atomic_t_wait, TASK_UNINTERRUPTIBLE); + wait_var_event(set, !atomic_read(set)); atomic_set(ready, count); atomic_set(done, count); } @@ -350,7 +345,6 @@ static void igt_wake_all_sync(atomic_t *ready, static int igt_wakeup(void *arg) { I915_RND_STATE(prng); - const int state = TASK_UNINTERRUPTIBLE; struct intel_engine_cs *engine = arg; struct igt_wakeup *waiters; DECLARE_WAIT_QUEUE_HEAD_ONSTACK(wq); @@ -418,7 +412,7 @@ static int igt_wakeup(void *arg) * that they are ready for the next test. We wait until all * threads are complete and waiting for us (i.e. not a seqno). */ - err = wait_on_atomic_t(&done, wait_atomic_timeout, state); + err = wait_var_event_timeout(&done, !atomic_read(&done), 10 * HZ); if (err) { pr_err("Timed out waiting for %d remaining waiters\n", atomic_read(&done)); |