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18390aeae7
linux/kernel/rcu
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Paul E. McKenney 18390aeae7 rcu: Make rcu_gp_cleanup() write only once to ->gp_flags 
At the end of rcu_gp_cleanup(), if another grace period is needed, but
not via rcu_accelerate_cbs(), the ->gp_flags field is written twice,
once when making the new grace-period request, and once when clearing
all other types of requests.  This commit therefore adds an else-clause
to avoid this double write.

Signed-off-by: Paul E. McKenney <paulmck@linux.vnet.ibm.com>
2018-07-12 14:25:17 -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 Merge branches 'exp.2018.05.15a', 'fixes.2018.05.15a', 'lock.2018.05.15a' and 'torture.2018.05.15a' into HEAD 2018-05-15 10:33:05 -07:00
rcuperf.c rcu: Rename cond_resched_rcu_qs() to cond_resched_tasks_rcu_qs() 2018-05-15 10:27:29 -07:00
rcutorture.c treewide: Use array_size() in vmalloc() 2018-06-12 16:19:22 -07:00
srcutiny.c srcu: Add cleanup_srcu_struct_quiesced() 2018-05-15 10:27:56 -07:00
srcutree.c srcu: Add cleanup_srcu_struct_quiesced() 2018-05-15 10:27:56 -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 Merge branches 'exp.2018.05.15a', 'fixes.2018.05.15a', 'lock.2018.05.15a' and 'torture.2018.05.15a' into HEAD 2018-05-15 10:33:05 -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: Make rcu_gp_cleanup() write only once to ->gp_flags 2018-07-12 14:25:17 -07:00
tree.h rcu: Diagnostics for grace-period startup hangs 2018-07-12 14:24:42 -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