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authorMaarten Lankhorst <maarten.lankhorst@linux.intel.com>2020-01-06 10:35:33 +0100
committerMaarten Lankhorst <maarten.lankhorst@linux.intel.com>2020-01-06 10:35:33 +0100
commit22164fbe274c2dd96d2887fe121896d321000a61 (patch)
tree629a8af05ecbe3ed8e18938de2564517c9b44d92 /include/linux/hrtimer.h
parent3d0dad869aeb5d8e81985c73a6c73428258f8083 (diff)
parentf5c547efa16c0ea5abff0596e829f502be11902e (diff)
Merge drm/drm-next into drm-misc-next
Requested, and we need v5.5-rc1 backported as our current branch is still based on v5.4. Signed-off-by: Maarten Lankhorst <maarten.lankhorst@linux.intel.com>
Diffstat (limited to 'include/linux/hrtimer.h')
-rw-r--r--include/linux/hrtimer.h14
1 files changed, 10 insertions, 4 deletions
diff --git a/include/linux/hrtimer.h b/include/linux/hrtimer.h
index 1b9a51a1bccb..1f98b52118f0 100644
--- a/include/linux/hrtimer.h
+++ b/include/linux/hrtimer.h
@@ -456,12 +456,18 @@ extern u64 hrtimer_next_event_without(const struct hrtimer *exclude);
extern bool hrtimer_active(const struct hrtimer *timer);
-/*
- * Helper function to check, whether the timer is on one of the queues
+/**
+ * hrtimer_is_queued = check, whether the timer is on one of the queues
+ * @timer: Timer to check
+ *
+ * Returns: True if the timer is queued, false otherwise
+ *
+ * The function can be used lockless, but it gives only a current snapshot.
*/
-static inline int hrtimer_is_queued(struct hrtimer *timer)
+static inline bool hrtimer_is_queued(struct hrtimer *timer)
{
- return timer->state & HRTIMER_STATE_ENQUEUED;
+ /* The READ_ONCE pairs with the update functions of timer->state */
+ return !!(READ_ONCE(timer->state) & HRTIMER_STATE_ENQUEUED);
}
/*