From: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
To: linux-kernel@vger.kernel.org
Cc: Tejun Heo <tj@kernel.org>, Lai Jiangshan <jiangshanlai@gmail.com>,
Peter Zijlstra <peterz@infradead.org>,
Thomas Gleixner <tglx@linutronix.de>,
Sebastian Andrzej Siewior <bigeasy@linutronix.de>
Subject: [PATCH 4/6] sched/swait: Add swait_event_lock_irq()
Date: Thu, 13 Jun 2019 16:50:25 +0200 [thread overview]
Message-ID: <20190613145027.27753-5-bigeasy@linutronix.de> (raw)
In-Reply-To: <20190613145027.27753-1-bigeasy@linutronix.de>
The swait_event_lock_irq() is inspired by wait_event_lock_irq(). This is
required by the workqueue code once it switches to swait.
Signed-off-by: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
---
include/linux/swait.h | 14 ++++++++++++++
1 file changed, 14 insertions(+)
diff --git a/include/linux/swait.h b/include/linux/swait.h
index 73e06e9986d4b..12612823c2cb1 100644
--- a/include/linux/swait.h
+++ b/include/linux/swait.h
@@ -297,4 +297,18 @@ do { \
__ret; \
})
+#define __swait_event_lock_irq(wq, condition, lock, cmd) \
+ ___swait_event(wq, condition, TASK_UNINTERRUPTIBLE, 0, \
+ raw_spin_unlock_irq(&lock); \
+ cmd; \
+ schedule(); \
+ raw_spin_lock_irq(&lock))
+
+#define swait_event_lock_irq(wq_head, condition, lock) \
+ do { \
+ if (condition) \
+ break; \
+ __swait_event_lock_irq(wq_head, condition, lock, ); \
+ } while (0)
+
#endif /* _LINUX_SWAIT_H */
--
2.20.1
next prev parent reply other threads:[~2019-06-13 14:59 UTC|newest]
Thread overview: 14+ messages / expand[flat|nested] mbox.gz Atom feed top
2019-06-13 14:50 [PATCH 0/6] workqueue: convert to raw_spinlock_t Sebastian Andrzej Siewior
2019-06-13 14:50 ` [PATCH 1/6] workqueue: Make alloc/apply/free_workqueue_attrs() static Sebastian Andrzej Siewior
2019-06-13 14:50 ` [PATCH 2/6] workqueue: Remove GPF argument from alloc_workqueue_attrs() Sebastian Andrzej Siewior
2019-06-13 14:50 ` [PATCH 3/6] workqueue: Don't assume that the callback has interrupts disabled Sebastian Andrzej Siewior
2019-06-13 14:50 ` Sebastian Andrzej Siewior [this message]
2019-06-13 14:50 ` [PATCH 5/6] workqueue: Use swait for wq_manager_wait Sebastian Andrzej Siewior
2019-06-13 14:50 ` [PATCH 6/6] workqueue: Convert the locks to raw type Sebastian Andrzej Siewior
2019-06-26 7:17 ` [PATCH 0/6] workqueue: convert to raw_spinlock_t Sebastian Andrzej Siewior
2019-06-26 13:49 ` Tejun Heo
2019-06-26 13:53 ` Thomas Gleixner
2019-06-26 14:01 ` Tejun Heo
2019-06-26 14:12 ` Thomas Gleixner
2019-06-26 14:18 ` Tejun Heo
2019-06-26 14:09 ` Sebastian Andrzej Siewior
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