From: Thomas Gleixner <tglx@linutronix.de>
To: LKML <linux-kernel@vger.kernel.org>
Cc: Peter Zijlstra <peterz@infradead.org>,
Ingo Molnar <mingo@kernel.org>,
Juri Lelli <juri.lelli@redhat.com>,
Steven Rostedt <rostedt@goodmis.org>,
Daniel Bristot de Oliveira <bristot@redhat.com>,
Will Deacon <will@kernel.org>, Waiman Long <longman@redhat.com>,
Boqun Feng <boqun.feng@gmail.com>,
Sebastian Andrzej Siewior <bigeasy@linutronix.de>,
Davidlohr Bueso <dave@stgolabs.net>,
Mike Galbraith <efault@gmx.de>
Subject: [patch V5 54/72] locking/ww_mutex: Implement rtmutex based ww_mutex API functions
Date: Sun, 15 Aug 2021 23:29:00 +0200 (CEST) [thread overview]
Message-ID: <20210815211305.024057938@linutronix.de> (raw)
In-Reply-To: 20210815203225.710392609@linutronix.de
From: Peter Zijlstra <peterz@infradead.org>
Add the actual ww_mutex API functions which replace the mutex based variant
on RT enabled kernels.
Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
---
V3: Make lock_interruptible interruptible for real (Mike)
---
kernel/locking/Makefile | 2 -
kernel/locking/ww_rt_mutex.c | 76 +++++++++++++++++++++++++++++++++++++++++++
2 files changed, 77 insertions(+), 1 deletion(-)
---
--- a/kernel/locking/Makefile
+++ b/kernel/locking/Makefile
@@ -25,7 +25,7 @@ obj-$(CONFIG_LOCK_SPIN_ON_OWNER) += osq_
obj-$(CONFIG_PROVE_LOCKING) += spinlock.o
obj-$(CONFIG_QUEUED_SPINLOCKS) += qspinlock.o
obj-$(CONFIG_RT_MUTEXES) += rtmutex_api.o
-obj-$(CONFIG_PREEMPT_RT) += spinlock_rt.o
+obj-$(CONFIG_PREEMPT_RT) += spinlock_rt.o ww_rt_mutex.o
obj-$(CONFIG_DEBUG_SPINLOCK) += spinlock.o
obj-$(CONFIG_DEBUG_SPINLOCK) += spinlock_debug.o
obj-$(CONFIG_QUEUED_RWLOCKS) += qrwlock.o
--- /dev/null
+++ b/kernel/locking/ww_rt_mutex.c
@@ -0,0 +1,76 @@
+// SPDX-License-Identifier: GPL-2.0-only
+/*
+ * rtmutex API
+ */
+#include <linux/spinlock.h>
+#include <linux/export.h>
+
+#define RT_MUTEX_BUILD_MUTEX
+#define WW_RT
+#include "rtmutex.c"
+
+static int __sched
+__ww_rt_mutex_lock(struct ww_mutex *lock, struct ww_acquire_ctx *ww_ctx,
+ unsigned int state, unsigned long ip)
+{
+ struct lockdep_map __maybe_unused *nest_lock = NULL;
+ struct rt_mutex *rtm = &lock->base;
+ int ret;
+
+ might_sleep();
+
+ if (ww_ctx) {
+ if (unlikely(ww_ctx == READ_ONCE(lock->ctx)))
+ return -EALREADY;
+
+ /*
+ * Reset the wounded flag after a kill. No other process can
+ * race and wound us here since they can't have a valid owner
+ * pointer if we don't have any locks held.
+ */
+ if (ww_ctx->acquired == 0)
+ ww_ctx->wounded = 0;
+
+#ifdef CONFIG_DEBUG_LOCK_ALLOC
+ nest_lock = &ww_ctx->dep_map;
+#endif
+ }
+ mutex_acquire_nest(&rtm->dep_map, 0, 0, nest_lock, ip);
+
+ if (likely(rt_mutex_cmpxchg_acquire(&rtm->rtmutex, NULL, current))) {
+ if (ww_ctx)
+ ww_mutex_set_context_fastpath(lock, ww_ctx);
+ return 0;
+ }
+
+ ret = rt_mutex_slowlock(&rtm->rtmutex, ww_ctx, state);
+
+ if (ret)
+ mutex_release(&rtm->dep_map, ip);
+ return ret;
+}
+
+int __sched
+ww_mutex_lock(struct ww_mutex *lock, struct ww_acquire_ctx *ctx)
+{
+ return __ww_rt_mutex_lock(lock, ctx, TASK_UNINTERRUPTIBLE, _RET_IP_);
+}
+EXPORT_SYMBOL(ww_mutex_lock);
+
+int __sched
+ww_mutex_lock_interruptible(struct ww_mutex *lock, struct ww_acquire_ctx *ctx)
+{
+ return __ww_rt_mutex_lock(lock, ctx, TASK_INTERRUPTIBLE, _RET_IP_);
+}
+EXPORT_SYMBOL(ww_mutex_lock_interruptible);
+
+void __sched ww_mutex_unlock(struct ww_mutex *lock)
+{
+ struct rt_mutex *rtm = &lock->base;
+
+ __ww_mutex_unlock(lock);
+
+ mutex_release(&rtm->dep_map, _RET_IP_);
+ __rt_mutex_unlock(&rtm->rtmutex);
+}
+EXPORT_SYMBOL(ww_mutex_unlock);
next prev parent reply other threads:[~2021-08-15 21:31 UTC|newest]
Thread overview: 160+ messages / expand[flat|nested] mbox.gz Atom feed top
2021-08-15 21:27 [patch V5 00/72] locking, sched: The PREEMPT-RT locking infrastructure Thomas Gleixner
2021-08-15 21:27 ` [patch V5 01/72] locking/local_lock: Add missing owner initialization Thomas Gleixner
2021-08-17 20:14 ` [tip: locking/core] " tip-bot2 for Thomas Gleixner
2021-08-15 21:27 ` [patch V5 02/72] locking/rtmutex: Set proper wait context for lockdep Thomas Gleixner
2021-08-17 20:14 ` [tip: locking/core] " tip-bot2 for Thomas Gleixner
2021-08-15 21:27 ` [patch V5 03/72] sched: Split out the wakeup state check Thomas Gleixner
2021-08-17 20:14 ` [tip: locking/core] sched/wakeup: Split out the wakeup ->__state check tip-bot2 for Thomas Gleixner
2021-08-15 21:27 ` [patch V5 04/72] sched: Introduce TASK_RTLOCK_WAIT Thomas Gleixner
2021-08-17 20:14 ` [tip: locking/core] sched/wakeup: Introduce the TASK_RTLOCK_WAIT state bit tip-bot2 for Thomas Gleixner
2021-08-15 21:27 ` [patch V5 05/72] sched: Reorganize current::__state helpers Thomas Gleixner
2021-08-17 20:14 ` [tip: locking/core] sched/wakeup: Reorganize the " tip-bot2 for Thomas Gleixner
2021-08-15 21:27 ` [patch V5 06/72] sched: Prepare for RT sleeping spin/rwlocks Thomas Gleixner
2021-08-17 20:14 ` [tip: locking/core] sched/wakeup: " tip-bot2 for Thomas Gleixner
2021-08-15 21:27 ` [patch V5 07/72] sched: Rework the __schedule() preempt argument Thomas Gleixner
2021-08-17 20:14 ` [tip: locking/core] sched/core: " tip-bot2 for Thomas Gleixner
2021-08-15 21:27 ` [patch V5 08/72] sched: Provide schedule point for RT locks Thomas Gleixner
2021-08-17 20:14 ` [tip: locking/core] sched/core: Provide a scheduling " tip-bot2 for Thomas Gleixner
2021-08-15 21:27 ` [patch V5 09/72] sched/wake_q: Provide WAKE_Q_HEAD_INITIALIZER Thomas Gleixner
2021-08-17 20:14 ` [tip: locking/core] sched/wake_q: Provide WAKE_Q_HEAD_INITIALIZER() tip-bot2 for Thomas Gleixner
2021-08-15 21:27 ` [patch V5 10/72] media/atomisp: Use lockdep instead of *mutex_is_locked() Thomas Gleixner
2021-08-17 20:14 ` [tip: locking/core] " tip-bot2 for Peter Zijlstra
2021-08-15 21:27 ` [patch V5 11/72] rtmutex: Remove rt_mutex_is_locked() Thomas Gleixner
2021-08-17 20:14 ` [tip: locking/core] locking/rtmutex: " tip-bot2 for Peter Zijlstra
2021-08-15 21:27 ` [patch V5 12/72] rtmutex: Convert macros to inlines Thomas Gleixner
2021-08-17 20:14 ` [tip: locking/core] locking/rtmutex: " tip-bot2 for Sebastian Andrzej Siewior
2021-08-15 21:27 ` [patch V5 13/72] rtmutex: Switch to try_cmpxchg() Thomas Gleixner
2021-08-17 20:14 ` [tip: locking/core] locking/rtmutex: Switch to from cmpxchg_*() to try_cmpxchg_*() tip-bot2 for Thomas Gleixner
2021-08-15 21:27 ` [patch V5 14/72] rtmutex: Split API and implementation Thomas Gleixner
2021-08-17 20:14 ` [tip: locking/core] locking/rtmutex: Split API from implementation tip-bot2 for Thomas Gleixner
2021-08-15 21:27 ` [patch V5 15/72] rtmutex: Split out the inner parts of struct rtmutex Thomas Gleixner
2021-08-17 20:14 ` [tip: locking/core] locking/rtmutex: Split out the inner parts of 'struct rtmutex' tip-bot2 for Peter Zijlstra
2021-08-15 21:28 ` [patch V5 16/72] locking/rtmutex: Provide rt_mutex_slowlock_locked() Thomas Gleixner
2021-08-17 20:14 ` [tip: locking/core] " tip-bot2 for Thomas Gleixner
2021-08-15 21:28 ` [patch V5 17/72] rtmutex: Provide rt_mutex_base_is_locked() Thomas Gleixner
2021-08-17 20:14 ` [tip: locking/core] locking/rtmutex: " tip-bot2 for Thomas Gleixner
2021-08-15 21:28 ` [patch V5 18/72] locking: Add base code for RT rw_semaphore and rwlock Thomas Gleixner
2021-08-16 5:00 ` Davidlohr Bueso
2021-08-17 20:14 ` [tip: locking/core] locking/rt: " tip-bot2 for Thomas Gleixner
2021-08-15 21:28 ` [patch V5 19/72] locking/rwsem: Add rtmutex based R/W semaphore implementation Thomas Gleixner
2021-08-17 20:14 ` [tip: locking/core] " tip-bot2 for Thomas Gleixner
2021-08-15 21:28 ` [patch V5 20/72] locking/rtmutex: Add wake_state to rt_mutex_waiter Thomas Gleixner
2021-08-17 20:14 ` [tip: locking/core] " tip-bot2 for Thomas Gleixner
2021-08-15 21:28 ` [patch V5 21/72] locking/rtmutex: Provide rt_wake_q and helpers Thomas Gleixner
2021-08-17 20:14 ` [tip: locking/core] locking/rtmutex: Provide rt_wake_q_head " tip-bot2 for Thomas Gleixner
2021-08-15 21:28 ` [patch V5 22/72] locking/rtmutex: Use rt_mutex_wake_q_head Thomas Gleixner
2021-08-17 20:14 ` [tip: locking/core] " tip-bot2 for Thomas Gleixner
2021-08-15 21:28 ` [patch V5 23/72] locking/rtmutex: Prepare RT rt_mutex_wake_q for RT locks Thomas Gleixner
2021-08-17 20:14 ` [tip: locking/core] " tip-bot2 for Thomas Gleixner
2021-08-15 21:28 ` [patch V5 24/72] locking/rtmutex: Guard regular sleeping locks specific functions Thomas Gleixner
2021-08-17 20:14 ` [tip: locking/core] " tip-bot2 for Thomas Gleixner
2021-08-15 21:28 ` [patch V5 25/72] locking/spinlock: Split the lock types header Thomas Gleixner
2021-08-17 20:14 ` [tip: locking/core] locking/spinlock: Split the lock types header, and move the raw types into <linux/spinlock_types_raw.h> tip-bot2 for Thomas Gleixner
2021-08-15 21:28 ` [patch V5 26/72] locking/rtmutex: Prevent future include recursion hell Thomas Gleixner
2021-08-17 20:14 ` [tip: locking/core] " tip-bot2 for Sebastian Andrzej Siewior
2021-08-15 21:28 ` [patch V5 27/72] locking/lockdep: Reduce includes in debug_locks.h Thomas Gleixner
2021-08-17 20:14 ` [tip: locking/core] locking/lockdep: Reduce header dependencies in <linux/debug_locks.h> tip-bot2 for Sebastian Andrzej Siewior
2021-08-15 21:28 ` [patch V5 28/72] rbtree: Split out the rbtree type definitions Thomas Gleixner
2021-08-17 20:14 ` [tip: locking/core] rbtree: Split out the rbtree type definitions into <linux/rbtree_types.h> tip-bot2 for Sebastian Andrzej Siewior
2021-08-15 21:28 ` [patch V5 29/72] locking/rtmutex: Include only rbtree types Thomas Gleixner
2021-08-17 20:14 ` [tip: locking/core] locking/rtmutex: Reduce <linux/rtmutex.h> header dependencies, only include <linux/rbtree_types.h> tip-bot2 for Sebastian Andrzej Siewior
2021-08-15 21:28 ` [patch V5 30/72] locking/spinlock: Provide RT specific spinlock type Thomas Gleixner
2021-08-17 20:14 ` [tip: locking/core] locking/spinlock: Provide RT specific spinlock_t tip-bot2 for Thomas Gleixner
2021-08-15 21:28 ` [patch V5 31/72] locking/spinlock: Provide RT variant header Thomas Gleixner
2021-08-17 20:14 ` [tip: locking/core] locking/spinlock: Provide RT variant header: <linux/spinlock_rt.h> tip-bot2 for Thomas Gleixner
2021-08-15 21:28 ` [patch V5 32/72] locking/rtmutex: Provide the spin/rwlock core lock function Thomas Gleixner
2021-08-17 20:14 ` [tip: locking/core] " tip-bot2 for Thomas Gleixner
2021-08-27 17:21 ` [patch V5 32/72] " Boqun Feng
2021-08-27 20:03 ` Thomas Gleixner
2021-08-15 21:28 ` [patch V5 33/72] locking/spinlock: Provide RT variant Thomas Gleixner
2021-08-17 20:14 ` [tip: locking/core] " tip-bot2 for Thomas Gleixner
2021-08-15 21:28 ` [patch V5 34/72] locking/rwlock: " Thomas Gleixner
2021-08-17 20:14 ` [tip: locking/core] " tip-bot2 for Thomas Gleixner
2021-09-11 2:59 ` [patch V5 34/72] " Xiaoming Ni
2021-09-13 6:28 ` Sebastian Andrzej Siewior
2021-08-15 21:28 ` [patch V5 35/72] locking/rtmutex: Squash !RT tasks to DEFAULT_PRIO Thomas Gleixner
2021-08-17 20:14 ` [tip: locking/core] " tip-bot2 for Peter Zijlstra
2021-08-15 21:28 ` [patch V5 36/72] locking/mutex: Consolidate core headers Thomas Gleixner
2021-08-17 20:14 ` [tip: locking/core] locking/mutex: Consolidate core headers, remove kernel/locking/mutex-debug.h tip-bot2 for Thomas Gleixner
2021-08-15 21:28 ` [patch V5 37/72] locking/mutex: Move waiter to core header Thomas Gleixner
2021-08-17 20:14 ` [tip: locking/core] locking/mutex: Move the 'struct mutex_waiter' definition from <linux/mutex.h> to the internal header tip-bot2 for Thomas Gleixner
2021-08-15 21:28 ` [patch V5 38/72] locking/ww_mutex: Move ww_mutex declarations into ww_mutex.h Thomas Gleixner
2021-08-17 20:14 ` [tip: locking/core] locking/ww_mutex: Move the ww_mutex definitions from <linux/mutex.h> into <linux/ww_mutex.h> tip-bot2 for Thomas Gleixner
2021-08-15 21:28 ` [patch V5 39/72] locking/mutex: Make mutex::wait_lock raw Thomas Gleixner
2021-08-17 20:14 ` [tip: locking/core] " tip-bot2 for Thomas Gleixner
2021-08-15 21:28 ` [patch V5 40/72] locking/ww_mutex: Simplify lockdep annotation Thomas Gleixner
2021-08-17 20:14 ` [tip: locking/core] locking/ww_mutex: Simplify lockdep annotations tip-bot2 for Peter Zijlstra
2021-08-15 21:28 ` [patch V5 41/72] locking/ww_mutex: Gather mutex_waiter initialization Thomas Gleixner
2021-08-17 20:14 ` [tip: locking/core] " tip-bot2 for Peter Zijlstra
2021-08-19 16:54 ` [patch V5 41/72] " Guenter Roeck
2021-08-19 18:08 ` [PATCH] locking/ww_mutex: Initialize waiter.ww_ctx properly Sebastian Andrzej Siewior
2021-08-19 18:22 ` Peter Zijlstra
2021-08-19 18:32 ` Sebastian Andrzej Siewior
2021-08-19 17:51 ` [patch V5 41/72] locking/ww_mutex: Gather mutex_waiter initialization Sebastian Andrzej Siewior
2021-08-19 18:17 ` Peter Zijlstra
2021-08-19 18:28 ` Sebastian Andrzej Siewior
2021-08-19 19:30 ` [PATCH v2] locking/ww_mutex: Initialize waiter.ww_ctx properly Sebastian Andrzej Siewior
2021-08-20 10:20 ` [tip: locking/core] " tip-bot2 for Sebastian Andrzej Siewior
2021-08-15 21:28 ` [patch V5 42/72] locking/ww_mutex: Split up ww_mutex_unlock() Thomas Gleixner
2021-08-17 20:14 ` [tip: locking/core] " tip-bot2 for Peter Zijlstra (Intel)
2021-08-15 21:28 ` [patch V5 43/72] locking/ww_mutex: Split W/W implementation logic Thomas Gleixner
2021-08-17 20:14 ` [tip: locking/core] locking/ww_mutex: Split out the W/W implementation logic into kernel/locking/ww_mutex.h tip-bot2 for Peter Zijlstra (Intel)
2021-08-15 21:28 ` [patch V5 44/72] locking/ww_mutex: Remove __sched annotation Thomas Gleixner
2021-08-17 20:14 ` [tip: locking/core] locking/ww_mutex: Remove the __sched annotation from ww_mutex APIs tip-bot2 for Peter Zijlstra
2021-08-15 21:28 ` [patch V5 45/72] locking/ww_mutex: Abstract waiter iteration Thomas Gleixner
2021-08-17 20:14 ` [tip: locking/core] locking/ww_mutex: Abstract out the " tip-bot2 for Peter Zijlstra
2021-08-15 21:28 ` [patch V5 46/72] locking/ww_mutex: Abstract waiter enqueueing Thomas Gleixner
2021-08-17 20:14 ` [tip: locking/core] locking/ww_mutex: Abstract out " tip-bot2 for Peter Zijlstra
2021-08-15 21:28 ` [patch V5 47/72] locking/ww_mutex: Abstract mutex accessors Thomas Gleixner
2021-08-17 20:14 ` [tip: locking/core] locking/ww_mutex: Abstract out " tip-bot2 for Peter Zijlstra
2021-08-15 21:28 ` [patch V5 48/72] locking/ww_mutex: Abstract mutex types Thomas Gleixner
2021-08-17 20:14 ` [tip: locking/core] locking/ww_mutex: Abstract out " tip-bot2 for Peter Zijlstra
2021-08-15 21:28 ` [patch V5 49/72] locking/ww_mutex: Abstract internal lock access Thomas Gleixner
2021-08-17 20:14 ` [tip: locking/core] locking/ww_mutex: Abstract out internal lock accesses tip-bot2 for Thomas Gleixner
2021-08-15 21:28 ` [patch V5 50/72] locking/ww_mutex: Implement rt_mutex accessors Thomas Gleixner
2021-08-17 20:14 ` [tip: locking/core] " tip-bot2 for Peter Zijlstra
2021-08-15 21:28 ` [patch V5 51/72] locking/ww_mutex: Add RT priority to W/W order Thomas Gleixner
2021-08-17 20:14 ` [tip: locking/core] " tip-bot2 for Peter Zijlstra
2021-08-15 21:28 ` [patch V5 52/72] locking/ww_mutex: Add rt_mutex based lock type and accessors Thomas Gleixner
2021-08-17 20:14 ` [tip: locking/core] " tip-bot2 for Peter Zijlstra
2021-08-15 21:28 ` [patch V5 53/72] locking/rtmutex: Extend the rtmutex core to support ww_mutex Thomas Gleixner
2021-08-17 20:14 ` [tip: locking/core] " tip-bot2 for Peter Zijlstra
2021-08-15 21:29 ` Thomas Gleixner [this message]
2021-08-17 20:14 ` [tip: locking/core] locking/ww_mutex: Implement rtmutex based ww_mutex API functions tip-bot2 for Peter Zijlstra
2021-08-15 21:29 ` [patch V5 55/72] locking/rtmutex: Add mutex variant for RT Thomas Gleixner
2021-08-17 20:14 ` [tip: locking/core] " tip-bot2 for Thomas Gleixner
2021-08-15 21:29 ` [patch V5 56/72] lib/test_lockup: Adapt to changed variables Thomas Gleixner
2021-08-17 20:14 ` [tip: locking/core] " tip-bot2 for Sebastian Andrzej Siewior
2021-08-15 21:29 ` [patch V5 57/72] futex: Validate waiter correctly in futex_proxy_trylock_atomic() Thomas Gleixner
2021-08-17 20:14 ` [tip: locking/core] " tip-bot2 for Thomas Gleixner
2021-08-15 21:29 ` [patch V5 58/72] futex: Cleanup stale comments Thomas Gleixner
2021-08-17 20:14 ` [tip: locking/core] futex: Clean up " tip-bot2 for Thomas Gleixner
2021-08-15 21:29 ` [patch V5 59/72] futex: Clarify futex_requeue() PI handling Thomas Gleixner
2021-08-17 20:14 ` [tip: locking/core] " tip-bot2 for Thomas Gleixner
2021-08-15 21:29 ` [patch V5 60/72] futex: Remove bogus condition for requeue PI Thomas Gleixner
2021-08-17 20:14 ` [tip: locking/core] " tip-bot2 for Thomas Gleixner
2021-08-15 21:29 ` [patch V5 61/72] futex: Correct the number of requeued waiters for PI Thomas Gleixner
2021-08-17 20:14 ` [tip: locking/core] " tip-bot2 for Thomas Gleixner
2021-08-15 21:29 ` [patch V5 62/72] futex: Restructure futex_requeue() Thomas Gleixner
2021-08-17 20:14 ` [tip: locking/core] " tip-bot2 for Thomas Gleixner
2021-08-15 21:29 ` [patch V5 63/72] futex: Clarify comment in futex_requeue() Thomas Gleixner
2021-08-17 20:14 ` [tip: locking/core] " tip-bot2 for Thomas Gleixner
2021-08-15 21:29 ` [patch V5 64/72] futex: Reorder sanity checks " Thomas Gleixner
2021-08-17 20:14 ` [tip: locking/core] " tip-bot2 for Thomas Gleixner
2021-08-15 21:29 ` [patch V5 65/72] futex: Simplify handle_early_requeue_pi_wakeup() Thomas Gleixner
2021-08-17 20:14 ` [tip: locking/core] " tip-bot2 for Thomas Gleixner
2021-08-15 21:29 ` [patch V5 66/72] futex: Prevent requeue_pi() lock nesting issue on RT Thomas Gleixner
2021-08-17 20:13 ` [tip: locking/core] " tip-bot2 for Thomas Gleixner
2021-08-15 21:29 ` [patch V5 67/72] rtmutex: Prevent lockdep false positive with PI futexes Thomas Gleixner
2021-08-17 20:13 ` [tip: locking/core] locking/rtmutex: " tip-bot2 for Thomas Gleixner
2021-08-15 21:29 ` [patch V5 68/72] preempt: Adjust PREEMPT_LOCK_OFFSET for RT Thomas Gleixner
2021-08-17 20:13 ` [tip: locking/core] " tip-bot2 for Thomas Gleixner
2021-08-15 21:29 ` [patch V5 69/72] locking/rtmutex: Implement equal priority lock stealing Thomas Gleixner
2021-08-17 20:13 ` [tip: locking/core] " tip-bot2 for Gregory Haskins
2021-08-15 21:29 ` [patch V5 70/72] locking/rtmutex: Add adaptive spinwait mechanism Thomas Gleixner
2021-08-17 20:13 ` [tip: locking/core] " tip-bot2 for Steven Rostedt
2021-08-15 21:29 ` [patch V5 71/72] locking/spinlock/rt: Prepare for RT local_lock Thomas Gleixner
2021-08-17 20:13 ` [tip: locking/core] " tip-bot2 for Thomas Gleixner
2021-08-15 21:29 ` [patch V5 72/72] locking/local_lock: Add PREEMPT_RT support Thomas Gleixner
2021-08-17 20:13 ` [tip: locking/core] " tip-bot2 for Thomas Gleixner
2021-08-16 9:21 ` [patch V5 00/72] locking, sched: The PREEMPT-RT locking infrastructure Sebastian Andrzej Siewior
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