linux/kernel/rcu
Paul E. McKenney de30ad512a rcu: Introduce grace-period sequence numbers
This commit adds grace-period sequence numbers (->gp_seq) to the
rcu_state, rcu_node, and rcu_data structures, and updates them.
It also checks for consistency between rsp->gpnum and rsp->gp_seq.
These ->gp_seq counters will eventually replace the existing ->gpnum
and ->completed counters, allowing a single memory access to determine
whether or not a grace period is in progress and if so, which one.
This in turn will enable changes that will reduce ->lock contention on
the leaf rcu_node structures.

Signed-off-by: Paul E. McKenney <paulmck@linux.vnet.ibm.com>
2018-07-12 14:27:46 -07:00
..
Kconfig rcu: Drive TASKS_RCU directly off of PREEMPT 2017-08-17 07:26:04 -07:00
Kconfig.debug rcu: Move RCU debug Kconfig options to kernel/rcu 2017-06-08 18:52:44 -07:00
Makefile License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
rcu_segcblist.c rcu: Simplify and inline cpu_needs_another_gp() 2018-05-15 10:30:59 -07:00
rcu_segcblist.h rcu: Simplify and inline cpu_needs_another_gp() 2018-05-15 10:30:59 -07:00
rcu.h rcu: Make expedited grace period use direct call on last leaf 2018-06-25 11:25:41 -07:00
rcuperf.c torture: Keep old-school dmesg format 2018-06-25 11:30:10 -07:00
rcutorture.c torture: Keep old-school dmesg format 2018-06-25 11:30:10 -07:00
srcutiny.c srcu: Add cleanup_srcu_struct_quiesced() 2018-05-15 10:27:56 -07:00
srcutree.c srcu: Add address of first callback to rcutorture output 2018-06-25 11:26:24 -07:00
sync.c doc: Fix various RCU docbook comment-header problems 2017-10-19 22:26:11 -04:00
tiny.c srcu: Move rcu_scheduler_starting() from Tiny RCU to Tiny SRCU 2017-07-24 16:03:22 -07:00
tree_exp.h rcu: Make expedited GPs handle CPU 0 being offline 2018-07-12 12:36:06 -07:00
tree_plugin.h rcu: Use the proper lockdep annotation in dump_blkd_tasks() 2018-06-26 12:25:55 -07:00
tree.c rcu: Introduce grace-period sequence numbers 2018-07-12 14:27:46 -07:00
tree.h rcu: Introduce grace-period sequence numbers 2018-07-12 14:27:46 -07:00
update.c rcu: Move __rcu_read_lock() and __rcu_read_unlock() to tree_plugin.h 2018-05-15 10:27:41 -07:00