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From: "Sebastian A. Siewior" <bigeasy@linutronix.de>
To: Peter Zijlstra <peterz@infradead.org>
Cc: "Ahmed S. Darwish" <a.darwish@linutronix.de>,
	Ingo Molnar <mingo@redhat.com>, Will Deacon <will@kernel.org>,
	Thomas Gleixner <tglx@linutronix.de>,
	"Paul E. McKenney" <paulmck@kernel.org>,
	Steven Rostedt <rostedt@goodmis.org>,
	LKML <linux-kernel@vger.kernel.org>
Subject: Re: [PATCH v1 07/25] lockdep: Add preemption disabled assertion API
Date: Sun, 24 May 2020 12:50:42 +0200
Message-ID: <20200524105042.7k3i4klu4oyhlfiv@linutronix.de> (raw)
In-Reply-To: <20200523224132.GD2483@worktop.programming.kicks-ass.net>

On 2020-05-24 00:41:32 [+0200], Peter Zijlstra wrote:
> Because...? /me rummages around.. Ah you're proposing sticking this in
> seqcount itself and then header hell.
> 
> Moo.. ok I'll go have another look on Monday.

if you have a look on Monday you might want to start with the patch at
the bottom on top of the series. Both sched.h includes are needed also
you need to avoid write_seqcount_t_begin_nested() as static inline in
header files.

diff --git a/include/linux/flex_proportions.h b/include/linux/flex_proportions.h
index c12df59d3f5fc..c0f88f08371d7 100644
--- a/include/linux/flex_proportions.h
+++ b/include/linux/flex_proportions.h
@@ -12,6 +12,7 @@
 #include <linux/spinlock.h>
 #include <linux/seqlock.h>
 #include <linux/gfp.h>
+#include <linux/sched.h>
 
 /*
  * When maximum proportion of some event type is specified, this is the
diff --git a/include/linux/lockdep.h b/include/linux/lockdep.h
index 54c929ea5b982..76385e599a9cb 100644
--- a/include/linux/lockdep.h
+++ b/include/linux/lockdep.h
@@ -702,13 +702,13 @@ do {									\
 			  "Not in hardirq as expected\n");		\
 	} while (0)
 
-/*
- * Don't define this assertion here to avoid a call-site's header file
- * dependency on sched.h task_struct current. This is needed by call
- * sites that are inline defined at header files already included by
- * sched.h.
- */
-void lockdep_assert_preemption_disabled(void);
+#define lockdep_assert_preemption_disabled() do {			\
+	WARN_ONCE(IS_ENABLED(CONFIG_PREEMPT_COUNT)      &&		\
+		  debug_locks                           &&		\
+		  !current->lockdep_recursion           &&		\
+		  (preempt_count() == 0 && current->hardirqs_enabled),	\
+		  "preemption not disabled as expected\n");		\
+       } while (0)
 
 #else
 # define might_lock(lock) do { } while (0)
diff --git a/include/linux/seqlock.h b/include/linux/seqlock.h
index eca464ecf012f..7f1261376110a 100644
--- a/include/linux/seqlock.h
+++ b/include/linux/seqlock.h
@@ -423,11 +423,11 @@ static inline void __write_seqcount_t_begin_nested(seqcount_t *s, int subclass)
 	seqcount_acquire(&s->dep_map, subclass, 0, _RET_IP_);
 }
 
-static inline void write_seqcount_t_begin_nested(seqcount_t *s, int subclass)
-{
-	lockdep_assert_preemption_disabled();
-	__write_seqcount_t_begin_nested(s, subclass);
-}
+#define write_seqcount_t_begin_nested(__s, __subclass)		\
+	do {							\
+		lockdep_assert_preemption_disabled();		\
+		__write_seqcount_t_begin_nested(__s, __subclass);\
+	} while (0)
 
 /*
  * write_seqcount_t_begin() without lockdep non-preemptibility check.
@@ -450,10 +450,7 @@ static inline void __write_seqcount_t_begin(seqcount_t *s)
  */
 #define write_seqcount_begin(s)		do_write_seqcount_begin(s)
 
-static inline void write_seqcount_t_begin(seqcount_t *s)
-{
-	write_seqcount_t_begin_nested(s, 0);
-}
+#define write_seqcount_t_begin(_s)	write_seqcount_t_begin_nested(_s, 0);
 
 /**
  * write_seqcount_end() - end a seqcount write-side critical section
diff --git a/include/linux/u64_stats_sync.h b/include/linux/u64_stats_sync.h
index 30358ce3d8fe1..d0fd3edcdc50b 100644
--- a/include/linux/u64_stats_sync.h
+++ b/include/linux/u64_stats_sync.h
@@ -62,6 +62,7 @@
  * Example of use in drivers/net/loopback.c, using per_cpu containers,
  * in BH disabled context.
  */
+#include <linux/sched.h>
 #include <linux/seqlock.h>
 
 struct u64_stats_sync {
diff --git a/kernel/locking/lockdep.c b/kernel/locking/lockdep.c
index 4dae65bc65c24..ac10db66cc63f 100644
--- a/kernel/locking/lockdep.c
+++ b/kernel/locking/lockdep.c
@@ -5857,18 +5857,3 @@ void lockdep_rcu_suspicious(const char *file, const int line, const char *s)
 	dump_stack();
 }
 EXPORT_SYMBOL_GPL(lockdep_rcu_suspicious);
-
-#ifdef CONFIG_PROVE_LOCKING
-
-void lockdep_assert_preemption_disabled(void)
-{
-	WARN_ONCE(IS_ENABLED(CONFIG_PREEMPT_COUNT)	&&
-		  debug_locks				&&
-		  !current->lockdep_recursion		&&
-		  (preempt_count() == 0 && current->hardirqs_enabled),
-		  "preemption not disabled as expected\n");
-}
-EXPORT_SYMBOL_GPL(lockdep_assert_preemption_disabled);
-NOKPROBE_SYMBOL(lockdep_assert_preemption_disabled);
-
-#endif

Sebastian

  reply index

Thread overview: 258+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2020-05-19 21:45 [PATCH v1 00/25] seqlock: Extend seqcount API with associated locks Ahmed S. Darwish
2020-05-19 21:45 ` [PATCH v1 01/25] net: core: device_rename: Use rwsem instead of a seqcount Ahmed S. Darwish
2020-05-19 22:01   ` Stephen Hemminger
2020-05-19 22:23     ` Thomas Gleixner
2020-05-19 23:11       ` Stephen Hemminger
2020-05-19 23:42         ` Thomas Gleixner
2020-05-20  0:06           ` Stephen Hemminger
2020-05-20  1:55             ` Thomas Gleixner
2020-05-20  2:57           ` David Miller
2020-05-20  3:18             ` Eric Dumazet
2020-05-20  4:36               ` Stephen Hemminger
2020-05-20 19:37             ` Thomas Gleixner
2020-05-20 21:36               ` Stephen Hemminger
2020-05-20  2:01   ` Eric Dumazet
2020-05-20  6:42     ` Ahmed S. Darwish
2020-05-20 12:51       ` Eric Dumazet
2020-06-03 14:33         ` Ahmed S. Darwish
2020-05-20 14:37   ` Dan Carpenter
2020-05-25 16:22     ` Ahmed S. Darwish
2020-05-19 21:45 ` [PATCH v1 02/25] mm/swap: Don't abuse the seqcount latching API Ahmed S. Darwish
2020-05-20 12:22   ` Konstantin Khlebnikov
2020-05-20 13:05     ` Peter Zijlstra
2020-05-22 14:57   ` Peter Zijlstra
2020-05-22 15:17     ` Sebastian A. Siewior
2020-05-22 16:23       ` Peter Zijlstra
2020-05-25 15:24     ` Ahmed S. Darwish
2020-05-25 15:45       ` Peter Zijlstra
2020-05-25 16:10     ` John Ogness
2020-09-10 15:08       ` [tip: locking/core] mm/swap: Do not abuse the seqcount_t " tip-bot2 for Ahmed S. Darwish
2020-05-19 21:45 ` [PATCH v1 03/25] net: phy: fixed_phy: Remove unused seqcount Ahmed S. Darwish
2020-05-19 21:45 ` [PATCH v1 04/25] block: nr_sects_write(): Disable preemption on seqcount write Ahmed S. Darwish
2020-05-22 16:39   ` Peter Zijlstra
2020-05-25  9:56     ` Ahmed S. Darwish
     [not found]   ` <20200522001237.A00E8206BE@mail.kernel.org>
2020-05-25 10:12     ` Ahmed S. Darwish
2020-05-19 21:45 ` [PATCH v1 05/25] u64_stats: Document writer non-preemptibility requirement Ahmed S. Darwish
2020-05-19 21:45 ` [PATCH v1 06/25] dma-buf: Remove custom seqcount lockdep class key Ahmed S. Darwish
2020-05-19 21:45 ` [PATCH v1 07/25] lockdep: Add preemption disabled assertion API Ahmed S. Darwish
2020-05-22 17:55   ` Peter Zijlstra
2020-05-23 14:59     ` Sebastian A. Siewior
2020-05-23 22:41       ` Peter Zijlstra
2020-05-24 10:50         ` Sebastian A. Siewior [this message]
2020-05-25 10:22         ` Peter Zijlstra
2020-05-26  0:52           ` Ahmed S. Darwish
2020-05-26  8:13             ` Peter Zijlstra
2020-05-26  9:45               ` Ahmed S. Darwish
2020-06-03 15:30               ` Ahmed S. Darwish
2020-05-19 21:45 ` [PATCH v1 08/25] seqlock: lockdep assert non-preemptibility on seqcount_t write Ahmed S. Darwish
2020-05-19 21:45 ` [PATCH v1 09/25] Documentation: locking: Describe seqlock design and usage Ahmed S. Darwish
2020-05-22 18:01   ` Peter Zijlstra
2020-05-22 22:24     ` Steven Rostedt
2020-05-25 10:50       ` Ahmed S. Darwish
2020-05-25 11:02         ` Ahmed S. Darwish
2020-05-19 21:45 ` [PATCH v1 10/25] seqlock: Add RST directives to kernel-doc code samples and notes Ahmed S. Darwish
2020-05-22 18:02   ` Peter Zijlstra
2020-05-22 18:03     ` Peter Zijlstra
2020-05-22 18:26       ` Thomas Gleixner
2020-05-22 18:32         ` Peter Zijlstra
2020-05-25  9:36           ` Ahmed S. Darwish
2020-05-25 13:44             ` Peter Zijlstra
2020-05-25 14:07               ` Peter Zijlstra
2020-05-19 21:45 ` [PATCH v1 11/25] seqlock: Add missing kernel-doc annotations Ahmed S. Darwish
2020-05-19 21:45 ` [PATCH v1 12/25] seqlock: Extend seqcount API with associated locks Ahmed S. Darwish
2020-05-19 21:45 ` [PATCH v1 13/25] dma-buf: Use sequence counter with associated wound/wait mutex Ahmed S. Darwish
2020-05-20 10:48   ` Christian König
2020-05-21  0:09     ` Ahmed S. Darwish
2020-05-21 13:20       ` Christian König
2020-05-19 21:45 ` [PATCH v1 14/25] sched: tasks: Use sequence counter with associated spinlock Ahmed S. Darwish
2020-05-19 21:45 ` [PATCH v1 15/25] netfilter: conntrack: " Ahmed S. Darwish
2020-05-19 21:45 ` [PATCH v1 16/25] netfilter: nft_set_rbtree: Use sequence counter with associated rwlock Ahmed S. Darwish
2020-05-19 21:45 ` [PATCH v1 17/25] xfrm: policy: Use sequence counters with associated lock Ahmed S. Darwish
2020-05-19 21:45 ` [PATCH v1 18/25] timekeeping: Use sequence counter with associated raw spinlock Ahmed S. Darwish
2020-05-19 21:45 ` [PATCH v1 19/25] vfs: Use sequence counter with associated spinlock Ahmed S. Darwish
2020-05-19 21:45 ` [PATCH v1 20/25] raid5: " Ahmed S. Darwish
2020-05-19 21:45 ` [PATCH v1 21/25] iocost: " Ahmed S. Darwish
2020-05-19 21:45 ` [PATCH v1 22/25] NFSv4: " Ahmed S. Darwish
2020-05-19 21:45 ` [PATCH v1 23/25] userfaultfd: " Ahmed S. Darwish
2020-05-19 21:45 ` [PATCH v1 24/25] kvm/eventfd: " Ahmed S. Darwish
2020-05-19 21:45 ` [PATCH v1 25/25] hrtimer: Use sequence counter with associated raw spinlock Ahmed S. Darwish
2020-06-08  0:57 ` [PATCH v2 00/18] seqlock: Extend seqcount API with associated locks Ahmed S. Darwish
2020-06-08  0:57   ` [PATCH v2 01/18] Documentation: locking: Describe seqlock design and usage Ahmed S. Darwish
2020-06-08  0:57   ` [PATCH v2 02/18] seqlock: Properly format kernel-doc code samples Ahmed S. Darwish
2020-06-08  0:57   ` [PATCH v2 03/18] seqlock: Add missing kernel-doc annotations Ahmed S. Darwish
2020-06-08  0:57   ` [PATCH v2 04/18] seqlock: Extend seqcount API with associated locks Ahmed S. Darwish
2020-06-08  0:57   ` [PATCH v2 05/18] dma-buf: Remove custom seqcount lockdep class key Ahmed S. Darwish
2020-06-08  0:57   ` [PATCH v2 06/18] dma-buf: Use sequence counter with associated wound/wait mutex Ahmed S. Darwish
2020-06-08 14:32     ` Daniel Vetter
2020-06-08  0:57   ` [PATCH v2 07/18] sched: tasks: Use sequence counter with associated spinlock Ahmed S. Darwish
2020-06-08  0:57   ` [PATCH v2 08/18] netfilter: conntrack: " Ahmed S. Darwish
2020-06-08  0:57   ` [PATCH v2 09/18] netfilter: nft_set_rbtree: Use sequence counter with associated rwlock Ahmed S. Darwish
2020-06-08  0:57   ` [PATCH v2 10/18] xfrm: policy: Use sequence counters with associated lock Ahmed S. Darwish
2020-06-08  0:57   ` [PATCH v2 11/18] timekeeping: Use sequence counter with associated raw spinlock Ahmed S. Darwish
2020-06-08  0:57   ` [PATCH v2 12/18] vfs: Use sequence counter with associated spinlock Ahmed S. Darwish
2020-06-08  0:57   ` [PATCH v2 13/18] raid5: " Ahmed S. Darwish
2020-06-08  0:57   ` [PATCH v2 14/18] iocost: " Ahmed S. Darwish
2020-06-08  0:57   ` [PATCH v2 15/18] NFSv4: " Ahmed S. Darwish
2020-06-08  0:57   ` [PATCH v2 16/18] userfaultfd: " Ahmed S. Darwish
2020-06-08  0:57   ` [PATCH v2 17/18] kvm/eventfd: " Ahmed S. Darwish
2020-06-08 12:57     ` Paolo Bonzini
2020-06-08  0:57   ` [PATCH v2 18/18] hrtimer: Use sequence counter with associated raw spinlock Ahmed S. Darwish
2020-06-30  5:44 ` [PATCH v3 00/20] seqlock: Extend seqcount API with associated locks Ahmed S. Darwish
2020-06-30  5:44   ` [PATCH v3 01/20] Documentation: locking: Describe seqlock design and usage Ahmed S. Darwish
2020-07-06 21:04     ` Peter Zijlstra
2020-07-06 21:12       ` Jonathan Corbet
2020-07-06 21:16       ` Peter Zijlstra
2020-07-07 10:12       ` Ahmed S. Darwish
2020-07-07 12:47         ` Peter Zijlstra
2020-06-30  5:44   ` [PATCH v3 02/20] seqlock: Properly format kernel-doc code samples Ahmed S. Darwish
2020-06-30  5:44   ` [PATCH v3 03/20] seqlock: Add missing kernel-doc annotations Ahmed S. Darwish
2020-06-30  5:44   ` [PATCH v3 04/20] lockdep: Add preemption enabled/disabled assertion APIs Ahmed S. Darwish
2020-07-06 20:50     ` Peter Zijlstra
2020-07-07  7:34       ` Sebastian A. Siewior
2020-06-30  5:44   ` [PATCH v3 05/20] seqlock: lockdep assert non-preemptibility on seqcount_t write Ahmed S. Darwish
2020-06-30  5:44   ` [PATCH v3 06/20] seqlock: Extend seqcount API with associated locks Ahmed S. Darwish
2020-07-06 21:21     ` Peter Zijlstra
2020-07-07  8:40       ` Ahmed S. Darwish
2020-07-07 13:04         ` Peter Zijlstra
2020-07-07 14:37           ` Peter Zijlstra
2020-07-08  9:12             ` Peter Zijlstra
2020-07-08 10:43               ` Ahmed S. Darwish
2020-07-08 10:33             ` Ahmed S. Darwish
2020-07-08 12:29               ` Peter Zijlstra
2020-07-08 14:13                 ` Peter Zijlstra
2020-07-08 14:25                   ` Peter Zijlstra
2020-07-08 15:09                 ` Ahmed S. Darwish
2020-07-08 15:35                   ` Peter Zijlstra
2020-07-08 15:58                     ` Ahmed S. Darwish
2020-07-08 16:16                       ` Peter Zijlstra
2020-07-08 16:18                       ` Peter Zijlstra
2020-07-08 16:01                     ` Peter Zijlstra
2020-06-30  5:44   ` [PATCH v3 07/20] dma-buf: Remove custom seqcount lockdep class key Ahmed S. Darwish
2020-06-30  5:44   ` [PATCH v3 08/20] dma-buf: Use sequence counter with associated wound/wait mutex Ahmed S. Darwish
2020-06-30  5:44   ` [PATCH v3 09/20] sched: tasks: Use sequence counter with associated spinlock Ahmed S. Darwish
2020-06-30  5:44   ` [PATCH v3 10/20] netfilter: conntrack: " Ahmed S. Darwish
2020-06-30  5:44   ` [PATCH v3 11/20] netfilter: nft_set_rbtree: Use sequence counter with associated rwlock Ahmed S. Darwish
2020-06-30  5:44   ` [PATCH v3 12/20] xfrm: policy: Use sequence counters with associated lock Ahmed S. Darwish
2020-06-30  5:44   ` [PATCH v3 13/20] timekeeping: Use sequence counter with associated raw spinlock Ahmed S. Darwish
2020-06-30  5:44   ` [PATCH v3 14/20] vfs: Use sequence counter with associated spinlock Ahmed S. Darwish
2020-06-30  5:44   ` [PATCH v3 15/20] raid5: " Ahmed S. Darwish
2020-06-30  5:44   ` [PATCH v3 16/20] iocost: " Ahmed S. Darwish
2020-06-30  7:11     ` Daniel Wagner
2020-06-30  5:44   ` [PATCH v3 17/20] NFSv4: " Ahmed S. Darwish
2020-06-30  5:44   ` [PATCH v3 18/20] userfaultfd: " Ahmed S. Darwish
2020-06-30  5:44   ` [PATCH v3 19/20] kvm/eventfd: " Ahmed S. Darwish
2020-06-30  5:44   ` [PATCH v3 20/20] hrtimer: Use sequence counter with associated raw spinlock Ahmed S. Darwish
2020-07-20 15:55 ` [PATCH v4 00/24] seqlock: Extend seqcount API with associated locks Ahmed S. Darwish
2020-07-20 15:55   ` [PATCH v4 01/24] Documentation: locking: Describe seqlock design and usage Ahmed S. Darwish
2020-07-21  1:35     ` Steven Rostedt
2020-07-21  1:37       ` Steven Rostedt
2020-07-21  5:34       ` Ahmed S. Darwish
2020-07-21  1:44     ` Steven Rostedt
2020-07-21  1:51       ` Steven Rostedt
2020-07-21  7:15         ` Ahmed S. Darwish
2020-07-29 14:33     ` [tip: locking/core] " tip-bot2 for Ahmed S. Darwish
2020-07-20 15:55   ` [PATCH v4 02/24] seqlock: Properly format kernel-doc code samples Ahmed S. Darwish
2020-07-29 14:33     ` [tip: locking/core] " tip-bot2 for Ahmed S. Darwish
2020-07-20 15:55   ` [PATCH v4 03/24] seqlock: seqcount_t latch: End read sections with read_seqcount_retry() Ahmed S. Darwish
2020-07-29 14:33     ` [tip: locking/core] " tip-bot2 for Ahmed S. Darwish
2020-07-20 15:55   ` [PATCH v4 04/24] seqlock: Reorder seqcount_t and seqlock_t API definitions Ahmed S. Darwish
2020-07-29 14:33     ` [tip: locking/core] " tip-bot2 for Ahmed S. Darwish
2020-07-20 15:55   ` [PATCH v4 05/24] seqlock: Add kernel-doc for seqcount_t and seqlock_t APIs Ahmed S. Darwish
2020-07-29 14:33     ` [tip: locking/core] " tip-bot2 for Ahmed S. Darwish
2020-07-20 15:55   ` [PATCH v4 06/24] seqlock: Implement raw_seqcount_begin() in terms of raw_read_seqcount() Ahmed S. Darwish
2020-07-29 14:33     ` [tip: locking/core] " tip-bot2 for Ahmed S. Darwish
2020-07-20 15:55   ` [PATCH v4 07/24] lockdep: Add preemption enabled/disabled assertion APIs Ahmed S. Darwish
2020-07-29 14:33     ` [tip: locking/core] " tip-bot2 for Ahmed S. Darwish
2020-07-20 15:55   ` [PATCH v4 08/24] seqlock: lockdep assert non-preemptibility on seqcount_t write Ahmed S. Darwish
2020-07-29 14:33     ` [tip: locking/core] " tip-bot2 for Ahmed S. Darwish
2020-08-08 23:21     ` [PATCH v4 08/24] " Guenter Roeck
2020-08-08 23:23       ` Guenter Roeck
2020-08-09 18:42       ` Ahmed S. Darwish
2020-08-10  8:59         ` Greg KH
2020-08-10  9:48           ` peterz
2020-08-10 10:03             ` Greg KH
2020-08-10  9:54           ` [PATCH] Revert "seqlock: lockdep assert non-preemptibility on seqcount_t write" Ahmed S. Darwish
2020-08-10 10:05             ` Greg KH
2020-08-10 10:35               ` Ahmed S. Darwish
2020-08-10 14:10               ` Guenter Roeck
2020-08-18 22:51                 ` Valdis Klētnieks
2020-08-19  0:56                   ` Guenter Roeck
2020-08-19  7:00                     ` Sebastian Andrzej Siewior
2020-08-19  7:34                       ` Valdis Klētnieks
2020-08-19 16:15                         ` Guenter Roeck
2020-08-10 19:55           ` [PATCH v4 08/24] seqlock: lockdep assert non-preemptibility on seqcount_t write Thomas Gleixner
2020-08-11 10:06             ` Greg KH
2020-07-20 15:55   ` [PATCH v4 09/24] seqlock: Extend seqcount API with associated locks Ahmed S. Darwish
2020-07-29 14:33     ` [tip: locking/core] " tip-bot2 for Ahmed S. Darwish
2020-07-20 15:55   ` [PATCH v4 10/24] seqlock: Align multi-line macros newline escapes at 72 columns Ahmed S. Darwish
2020-07-29 14:33     ` [tip: locking/core] " tip-bot2 for Ahmed S. Darwish
2020-07-20 15:55   ` [PATCH v4 11/24] dma-buf: Remove custom seqcount lockdep class key Ahmed S. Darwish
2020-07-29 14:33     ` [tip: locking/core] " tip-bot2 for Ahmed S. Darwish
2020-07-20 15:55   ` [PATCH v4 12/24] dma-buf: Use sequence counter with associated wound/wait mutex Ahmed S. Darwish
2020-07-29 14:33     ` [tip: locking/core] " tip-bot2 for Ahmed S. Darwish
2020-07-20 15:55   ` [PATCH v4 13/24] sched: tasks: Use sequence counter with associated spinlock Ahmed S. Darwish
2020-07-29 14:33     ` [tip: locking/core] " tip-bot2 for Ahmed S. Darwish
2020-07-20 15:55   ` [PATCH v4 14/24] netfilter: conntrack: " Ahmed S. Darwish
2020-07-29 14:33     ` [tip: locking/core] " tip-bot2 for Ahmed S. Darwish
2020-07-20 15:55   ` [PATCH v4 15/24] netfilter: nft_set_rbtree: Use sequence counter with associated rwlock Ahmed S. Darwish
2020-07-29 14:33     ` [tip: locking/core] " tip-bot2 for Ahmed S. Darwish
2020-07-20 15:55   ` [PATCH v4 16/24] xfrm: policy: Use sequence counters with associated lock Ahmed S. Darwish
2020-07-29 14:33     ` [tip: locking/core] " tip-bot2 for Ahmed S. Darwish
2020-07-20 15:55   ` [PATCH v4 17/24] timekeeping: Use sequence counter with associated raw spinlock Ahmed S. Darwish
2020-07-29 14:33     ` [tip: locking/core] " tip-bot2 for Ahmed S. Darwish
2020-07-20 15:55   ` [PATCH v4 18/24] vfs: Use sequence counter with associated spinlock Ahmed S. Darwish
2020-07-29 14:33     ` [tip: locking/core] " tip-bot2 for Ahmed S. Darwish
2020-07-20 15:55   ` [PATCH v4 19/24] raid5: " Ahmed S. Darwish
2020-07-22  6:40     ` Song Liu
2020-07-29 14:33     ` [tip: locking/core] " tip-bot2 for Ahmed S. Darwish
2020-07-20 15:55   ` [PATCH v4 20/24] iocost: " Ahmed S. Darwish
2020-07-29 14:33     ` [tip: locking/core] " tip-bot2 for Ahmed S. Darwish
2020-07-20 15:55   ` [PATCH v4 21/24] NFSv4: " Ahmed S. Darwish
2020-07-29 14:33     ` [tip: locking/core] " tip-bot2 for Ahmed S. Darwish
2020-07-20 15:55   ` [PATCH v4 22/24] userfaultfd: " Ahmed S. Darwish
2020-07-29 14:33     ` [tip: locking/core] " tip-bot2 for Ahmed S. Darwish
2020-07-20 15:55   ` [PATCH v4 23/24] kvm/eventfd: " Ahmed S. Darwish
2020-07-29 14:33     ` [tip: locking/core] " tip-bot2 for Ahmed S. Darwish
2020-07-20 15:55   ` [PATCH v4 24/24] hrtimer: Use sequence counter with associated raw spinlock Ahmed S. Darwish
2020-07-29 14:33     ` [tip: locking/core] " tip-bot2 for Ahmed S. Darwish
2020-07-20 16:49   ` [PATCH v4 00/24] seqlock: Extend seqcount API with associated locks Eric Biggers
2020-07-20 17:33     ` Ahmed S. Darwish
2020-08-27 11:40 ` [PATCH v1 0/8] seqlock: Introduce seqcount_latch_t Ahmed S. Darwish
2020-08-27 11:40   ` [PATCH v1 1/8] time/sched_clock: Use raw_read_seqcount_latch() during suspend Ahmed S. Darwish
2020-08-27 11:40   ` [PATCH v1 2/8] mm/swap: Do not abuse the seqcount_t latching API Ahmed S. Darwish
2020-08-27 11:40   ` [PATCH v1 3/8] seqlock: Introduce seqcount_latch_t Ahmed S. Darwish
2020-09-10 15:08     ` [tip: locking/core] " tip-bot2 for Ahmed S. Darwish
2020-08-27 11:40   ` [PATCH v1 4/8] time/sched_clock: Use seqcount_latch_t Ahmed S. Darwish
2020-09-10 15:08     ` [tip: locking/core] " tip-bot2 for Ahmed S. Darwish
2020-08-27 11:40   ` [PATCH v1 5/8] timekeeping: " Ahmed S. Darwish
2020-09-10 15:08     ` [tip: locking/core] " tip-bot2 for Ahmed S. Darwish
2020-08-27 11:40   ` [PATCH v1 6/8] x86/tsc: " Ahmed S. Darwish
2020-09-04  7:41     ` peterz
2020-09-04  8:03       ` peterz
2020-09-07 16:29         ` Ahmed S. Darwish
2020-09-07 17:30           ` peterz
2020-09-08  6:23             ` Ahmed S. Darwish
2020-09-10 15:08     ` [tip: locking/core] " tip-bot2 for Ahmed S. Darwish
2020-08-27 11:40   ` [PATCH v1 7/8] rbtree_latch: " Ahmed S. Darwish
2020-09-10 15:08     ` [tip: locking/core] " tip-bot2 for Ahmed S. Darwish
2020-08-27 11:40   ` [PATCH v1 8/8] seqlock: seqcount latch APIs: Only allow seqcount_latch_t Ahmed S. Darwish
2020-09-10 15:08     ` [tip: locking/core] " tip-bot2 for Ahmed S. Darwish
2020-08-28  1:07 ` [PATCH v1 0/5] seqlock: Introduce PREEMPT_RT support Ahmed S. Darwish
2020-08-28  1:07   ` [PATCH v1 1/5] seqlock: seqcount_LOCKTYPE_t: Standardize naming convention Ahmed S. Darwish
2020-08-28  8:18     ` peterz
2020-08-28  8:24       ` Ahmed S. Darwish
2020-08-28  1:07   ` [PATCH v1 2/5] seqlock: Use unique prefix for seqcount_t property accessors Ahmed S. Darwish
2020-08-28  8:27     ` peterz
2020-08-28  8:59       ` Ahmed S. Darwish
2020-08-28  1:07   ` [PATCH v1 3/5] seqlock: seqcount_t: Implement all read APIs as statement expressions Ahmed S. Darwish
2020-08-28  8:30     ` peterz
2020-08-28  8:37       ` Ahmed S. Darwish
2020-08-28  1:07   ` [PATCH v1 4/5] seqlock: seqcount_LOCKTYPE_t: Introduce PREEMPT_RT support Ahmed S. Darwish
2020-08-28  8:57     ` peterz
2020-08-28  8:59     ` peterz
2020-08-28  9:31       ` Ahmed S. Darwish
2020-08-28 14:36         ` Ahmed S. Darwish
2020-08-28  1:07   ` [PATCH v1 5/5] seqlock: PREEMPT_RT: Do not starve seqlock_t writers Ahmed S. Darwish
2020-09-04  6:52   ` [PATCH v1 0/5] seqlock: Introduce PREEMPT_RT support peterz
2020-09-04  7:30     ` Ahmed S. Darwish
2020-09-10 15:08 ` [tip: locking/core] seqlock: seqcount_LOCKNAME_t: " tip-bot2 for Ahmed S. Darwish

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