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From: paulmck@kernel.org
To: rcu@vger.kernel.org
Cc: linux-kernel@vger.kernel.org, kernel-team@fb.com,
	mingo@kernel.org, jiangshanlai@gmail.com, dipankar@in.ibm.com,
	akpm@linux-foundation.org, mathieu.desnoyers@efficios.com,
	josh@joshtriplett.org, tglx@linutronix.de, peterz@infradead.org,
	rostedt@goodmis.org, dhowells@redhat.com, edumazet@google.com,
	fweisbec@gmail.com, oleg@redhat.com, joel@joelfernandes.org,
	"Paul E. McKenney" <paulmck@kernel.org>,
	Bart Van Assche <bart.vanassche@wdc.com>,
	Christoph Hellwig <hch@lst.de>, Hannes Reinecke <hare@suse.de>,
	Johannes Thumshirn <jthumshirn@suse.de>,
	Shane M Seymour <shane.seymour@hpe.com>,
	"Martin K . Petersen" <martin.petersen@oracle.com>
Subject: [PATCH tip/core/rcu 01/12] rcu: Remove rcu_swap_protected()
Date: Mon,  9 Dec 2019 20:07:30 -0800	[thread overview]
Message-ID: <20191210040741.2943-1-paulmck@kernel.org> (raw)
In-Reply-To: <20191210040714.GA2715@paulmck-ThinkPad-P72>

From: "Paul E. McKenney" <paulmck@kernel.org>

Now that the calls to rcu_swap_protected() have been replaced by
rcu_replace_pointer(), this commit removes rcu_swap_protected().

Link: https://lore.kernel.org/lkml/CAHk-=wiAsJLw1egFEE=Z7-GGtM6wcvtyytXZA1+BHqta4gg6Hw@mail.gmail.com/
Reported-by: Linus Torvalds <torvalds@linux-foundation.org>
Signed-off-by: Paul E. McKenney <paulmck@kernel.org>
Cc: Bart Van Assche <bart.vanassche@wdc.com>
Cc: Christoph Hellwig <hch@lst.de>
Cc: Hannes Reinecke <hare@suse.de>
Cc: Johannes Thumshirn <jthumshirn@suse.de>
Cc: Shane M Seymour <shane.seymour@hpe.com>
Cc: Martin K. Petersen <martin.petersen@oracle.com>
---
 include/linux/rcupdate.h | 16 ----------------
 1 file changed, 16 deletions(-)

diff --git a/include/linux/rcupdate.h b/include/linux/rcupdate.h
index 0b75063..fe47024 100644
--- a/include/linux/rcupdate.h
+++ b/include/linux/rcupdate.h
@@ -401,22 +401,6 @@ do {									      \
 })
 
 /**
- * rcu_swap_protected() - swap an RCU and a regular pointer
- * @rcu_ptr: RCU pointer
- * @ptr: regular pointer
- * @c: the conditions under which the dereference will take place
- *
- * Perform swap(@rcu_ptr, @ptr) where @rcu_ptr is an RCU-annotated pointer and
- * @c is the argument that is passed to the rcu_dereference_protected() call
- * used to read that pointer.
- */
-#define rcu_swap_protected(rcu_ptr, ptr, c) do {			\
-	typeof(ptr) __tmp = rcu_dereference_protected((rcu_ptr), (c));	\
-	rcu_assign_pointer((rcu_ptr), (ptr));				\
-	(ptr) = __tmp;							\
-} while (0)
-
-/**
  * rcu_access_pointer() - fetch RCU pointer with no dereferencing
  * @p: The pointer to read
  *
-- 
2.9.5


  reply	other threads:[~2019-12-10  4:07 UTC|newest]

Thread overview: 22+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2019-12-10  4:07 [PATCH tip/core/rcu 0/12] Miscellaneous fixes for v5.6 Paul E. McKenney
2019-12-10  4:07 ` paulmck [this message]
2019-12-11  3:35   ` [PATCH tip/core/rcu 01/12] rcu: Remove rcu_swap_protected() Martin K. Petersen
2019-12-11  3:51     ` Paul E. McKenney
2019-12-11 18:37       ` Paul E. McKenney
2019-12-11 19:09         ` Matthias Brugger
2019-12-11 23:12           ` Paul E. McKenney
2019-12-12  9:31             ` Kalle Valo
     [not found]             ` <87mubxdh52.fsf@kamboji.qca.qualcomm.com>
2019-12-12 18:21               ` Paul E. McKenney
2019-12-10  4:07 ` [PATCH tip/core/rcu 02/12] rcu: Mark non-global functions and variables as static paulmck
2019-12-10  4:07 ` [PATCH tip/core/rcu 03/12] rcu: Fix harmless omission of "CONFIG_" from #if condition paulmck
2019-12-10  4:07 ` [PATCH tip/core/rcu 04/12] rcu: Fix tracepoint tracking RCU CPU kthread utilization paulmck
2019-12-10  4:07 ` [PATCH tip/core/rcu 05/12] rcu: Remove the declaration of call_rcu() in tree.h paulmck
2019-12-10  4:07 ` [PATCH tip/core/rcu 06/12] rcu: Move gp_state_names[] and gp_state_getname() to tree_stall.h paulmck
2019-12-10  4:07 ` [PATCH tip/core/rcu 07/12] rcu: Move rcu_{expedited,normal} definitions into rcupdate.h paulmck
2019-12-10  4:07 ` [PATCH tip/core/rcu 08/12] rcu: Switch force_qs_rnp() to for_each_leaf_node_cpu_mask() paulmck
2019-12-10  4:07 ` [PATCH tip/core/rcu 09/12] srcu: Apply *_ONCE() to ->srcu_last_gp_end paulmck
2019-12-10  4:07 ` [PATCH tip/core/rcu 10/12] .mailmap: Add entries for old paulmck@kernel.org addresses paulmck
2019-12-11 19:03   ` Florian Fainelli
2019-12-11 23:14     ` Paul E. McKenney
2019-12-10  4:07 ` [PATCH tip/core/rcu 11/12] powerpc: Remove comment about read_barrier_depends() paulmck
2019-12-10  4:07 ` [PATCH tip/core/rcu 12/12] rcu: Remove unused stop-machine #include paulmck

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