From: "Paul E. McKenney" <paulmck@linux.vnet.ibm.com>
To: linux-kernel@vger.kernel.org
Cc: mingo@elte.hu, laijs@cn.fujitsu.com, dipankar@in.ibm.com,
akpm@linux-foundation.org, mathieu.desnoyers@efficios.com,
josh@joshtriplett.org, niv@us.ibm.com, tglx@linutronix.de,
peterz@infradead.org, rostedt@goodmis.org,
Valdis.Kletnieks@vt.edu, dhowells@redhat.com,
edumazet@google.com, darren@dvhart.com, fweisbec@gmail.com,
sbw@mit.edu
Subject: [PATCH tip/core/rcu 0/13] v2 TINY_RCU changes for 3.11
Date: Mon, 20 May 2013 07:57:51 -0700 [thread overview]
Message-ID: <20130520145751.GA32218@linux.vnet.ibm.com> (raw)
Hello!
This series removes TINY_PREEMPT_RCU, as promised/threatened at
http://lwn.net/Articles/541037/ and https://lkml.org/lkml/2012/11/12/545.
1. Remove TINY_PREEMPT_RCU. This is a straight syntactic removal,
with no attempt at cleanup. The remaining patches do the cleanup.
2. Inline the now-empty show_tiny_preempt_stats() function.
3. Inline the now-empty rcu_preempt_check_callbacks() function.
4. Inline the now-empty rcu_preempt_remove_callbacks() function.
5. Inline the now-empty rcu_preempt_process_callbacks() function.
6. Because TINY_RCU no longer has kthreads, remove the code that
used to abstract away kthread vs. softirq invocation.
7. Inline the now-empty check_cpu_stall_preempt() function.
8. Remove CONFIG_TINY_RCU ifdefs from include/linux/rcutiny.h
9. Inline the now-empty rcu_preempt_note_context_switch() function.
10. Move code to allow consolidating ifdefs in kernel/rcutiny_plugin.h.
11. Remove TINY_PREEMPT_RCU's tracing formats from documentation.
12. Shrink TINY_RCU a bit by moving exit_rcu() to TREE_RCU, leaving
TINY_RCU with a static inline empty function.
13. Shrink TINY_RCU a bit more by making reset_cpu_stall_ticks() and
check_cpu_stalls() inlineable.
Changes from v1: Add Reviewed-bys and add the 13th patch.
Thanx, Paul
b/Documentation/RCU/trace.txt | 100 ----
b/include/linux/hardirq.h | 2
b/include/linux/rcupdate.h | 5
b/include/linux/rcutiny.h | 45 -
b/include/linux/rcutree.h | 3
b/init/Kconfig | 10
b/kernel/rcupdate.c | 26 -
b/kernel/rcutiny.c | 21
b/kernel/rcutiny_plugin.h | 1023 +-----------------------------------------
b/kernel/rcutree_plugin.h | 26 +
10 files changed, 96 insertions(+), 1165 deletions(-)
next reply other threads:[~2013-05-20 14:58 UTC|newest]
Thread overview: 17+ messages / expand[flat|nested] mbox.gz Atom feed top
2013-05-20 14:57 Paul E. McKenney [this message]
2013-05-20 14:58 ` [PATCH tip/core/rcu 01/13] rcu: Remove TINY_PREEMPT_RCU Paul E. McKenney
2013-05-20 14:58 ` [PATCH tip/core/rcu 02/13] rcu: Remove show_tiny_preempt_stats() Paul E. McKenney
2013-05-20 14:58 ` [PATCH tip/core/rcu 03/13] rcu: Remove rcu_preempt_check_callbacks() Paul E. McKenney
2013-05-20 14:58 ` [PATCH tip/core/rcu 04/13] rcu: Remove rcu_preempt_remove_callbacks() Paul E. McKenney
2013-05-20 14:58 ` [PATCH tip/core/rcu 05/13] rcu: Remove rcu_preempt_process_callbacks() Paul E. McKenney
2013-05-20 14:58 ` [PATCH tip/core/rcu 06/13] rcu: Simplify RCU_TINY RCU callback invocation Paul E. McKenney
2013-05-20 14:58 ` [PATCH tip/core/rcu 07/13] rcu: Remove check_cpu_stall_preempt() Paul E. McKenney
2013-05-20 14:58 ` [PATCH tip/core/rcu 08/13] rcu: Remove the CONFIG_TINY_RCU ifdefs in rcutiny.h Paul E. McKenney
2013-05-20 14:58 ` [PATCH tip/core/rcu 09/13] rcu: Remove rcu_preempt_note_context_switch() Paul E. McKenney
2013-05-20 14:58 ` [PATCH tip/core/rcu 10/13] rcu: Consolidate rcutiny_plugin.h ifdefs Paul E. McKenney
2013-05-20 14:58 ` [PATCH tip/core/rcu 11/13] rcu: Remove TINY_PREEMPT_RCU tracing documentation Paul E. McKenney
2013-05-20 14:58 ` [PATCH tip/core/rcu 12/13] rcu: Shrink TINY_RCU by moving exit_rcu() Paul E. McKenney
2013-05-20 14:58 ` [PATCH tip/core/rcu 13/13] rcu: Shrink TINY_RCU by reworking CPU-stall ifdefs Paul E. McKenney
2013-05-21 17:31 ` Josh Triplett
2013-05-21 21:09 ` Paul E. McKenney
2013-05-21 21:48 ` Josh Triplett
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