linux-stable/kernel/rcu
Ingo Molnar f9411ebe3d rcu: Separate the RCU synchronization types and APIs into <linux/rcupdate_wait.h>
So rcupdate.h is a pretty complex header, in particular it includes
<linux/completion.h> which includes <linux/wait.h> - creating a
dependency that includes <linux/wait.h> in <linux/sched.h>,
which prevents the isolation of <linux/sched.h> from the derived
<linux/wait.h> header.

Solve part of the problem by decoupling rcupdate.h from completions:
this can be done by separating out the rcu_synchronize types and APIs,
and updating their usage sites.

Since this is a mostly RCU-internal types this will not just simplify
<linux/sched.h>'s dependencies, but will make all the hundreds of
.c files that include rcupdate.h but not completions or wait.h build
faster.

( For rcutiny this means that two dependent APIs have to be uninlined,
  but that shouldn't be much of a problem as they are rare variants. )

Acked-by: Linus Torvalds <torvalds@linux-foundation.org>
Cc: Mike Galbraith <efault@gmx.de>
Cc: Paul E. McKenney <paulmck@linux.vnet.ibm.com>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: linux-kernel@vger.kernel.org
Signed-off-by: Ingo Molnar <mingo@kernel.org>
2017-03-02 08:42:24 +01:00
..
Makefile rcutorture: Add RCU grace-period performance tests 2016-03-31 13:37:38 -07:00
rcu.h rcu: Narrow early boot window of illegal synchronous grace periods 2017-01-14 21:23:48 -08:00
rcuperf.c rcuperf: Consistently insert space between flag and message 2016-08-22 10:06:16 -07:00
rcutorture.c srcu: Implement more-efficient reader counts 2017-01-25 12:53:20 -08:00
srcu.c rcu: Separate the RCU synchronization types and APIs into <linux/rcupdate_wait.h> 2017-03-02 08:42:24 +01:00
sync.c locking, rcu, cgroup: Avoid synchronize_sched() in __cgroup_procs_write() 2016-08-18 15:36:59 +02:00
tiny.c rcu: Separate the RCU synchronization types and APIs into <linux/rcupdate_wait.h> 2017-03-02 08:42:24 +01:00
tiny_plugin.h rcu: Narrow early boot window of illegal synchronous grace periods 2017-01-14 21:23:48 -08:00
tree.c rcu: Separate the RCU synchronization types and APIs into <linux/rcupdate_wait.h> 2017-03-02 08:42:24 +01:00
tree.h Merge branches 'doc.2017.01.15b', 'dyntick.2017.01.23a', 'fixes.2017.01.23a', 'srcu.2017.01.25a' and 'torture.2017.01.15b' into HEAD 2017-01-25 12:56:05 -08:00
tree_exp.h Merge branches 'doc.2017.01.15b', 'dyntick.2017.01.23a', 'fixes.2017.01.23a', 'srcu.2017.01.25a' and 'torture.2017.01.15b' into HEAD 2017-01-25 12:56:05 -08:00
tree_plugin.h Merge branches 'doc.2017.01.15b', 'dyntick.2017.01.23a', 'fixes.2017.01.23a', 'srcu.2017.01.25a' and 'torture.2017.01.15b' into HEAD 2017-01-25 12:56:05 -08:00
tree_trace.c Merge branches 'doc.2017.01.15b', 'dyntick.2017.01.23a', 'fixes.2017.01.23a', 'srcu.2017.01.25a' and 'torture.2017.01.15b' into HEAD 2017-01-25 12:56:05 -08:00
update.c rcu: Separate the RCU synchronization types and APIs into <linux/rcupdate_wait.h> 2017-03-02 08:42:24 +01:00