]> err.no Git - linux-2.6/commit
[PATCH] RCU: introduce rcu_needs_cpu() interface
authorHeiko Carstens <heiko.carstens@de.ibm.com>
Mon, 15 May 2006 16:43:58 +0000 (09:43 -0700)
committerLinus Torvalds <torvalds@g5.osdl.org>
Mon, 15 May 2006 18:20:55 +0000 (11:20 -0700)
commit986733e01d258c26107f1da9d8d47c718349ad2f
tree5e0f04a707b8c341f79927ba6fffd0ad55d85c29
parent3b7c8108273bed41a2fc04533cc9f2026ff38c8e
[PATCH] RCU: introduce rcu_needs_cpu() interface

With "Paul E. McKenney" <paulmck@us.ibm.com>

Introduce rcu_needs_cpu() interface.  This can be used to tell if there
will be a new rcu batch on a cpu soon by looking at the curlist pointer.
This can be used to avoid to enter a tickless idle state where the cpu
would miss that a new batch is ready when rcu_start_batch would be called
on a different cpu.

Signed-off-by: Heiko Carstens <heiko.carstens@de.ibm.com>
Cc: "Paul E. McKenney" <paulmck@us.ibm.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
include/linux/rcupdate.h
kernel/rcupdate.c