Paul E. McKenney 2906d2154c rcu: Add WRITE_ONCE() to rcu_state ->gp_req_activity ...

The rcu_state structure's ->gp_req_activity field is read locklessly,
so this commit adds the WRITE_ONCE() to an update in order to provide
proper documentation and READ_ONCE()/WRITE_ONCE() pairing.

This data race was reported by KCSAN.  Not appropriate for backporting
due to failure being unlikely.

Signed-off-by: Paul E. McKenney <paulmck@kernel.org>

2020-02-20 15:58:22 -08:00

..

Kconfig

rcu: Use CONFIG_PREEMPTION where appropriate

2019-12-09 12:37:51 -08:00

Kconfig.debug

rcu: Add support for consolidated-RCU reader checking

2019-08-09 11:00:35 -07:00

Makefile

rcu: Provide debug symbols and line numbers in KCSAN runs

2020-02-20 15:58:21 -08:00

rcu_segcblist.c

rcu: Remove kfree_rcu() special casing and lazy-callback handling

2020-01-24 10:24:31 -08:00

rcu_segcblist.h

rcu: Remove kfree_rcu() special casing and lazy-callback handling

2020-01-24 10:24:31 -08:00

rcu.h

rcu: Warn on for_each_leaf_node_cpu_mask() from non-leaf

2020-02-20 15:58:21 -08:00

rcuperf.c

rcu: Remove kfree_call_rcu_nobatch()

2020-01-24 10:24:31 -08:00

rcutorture.c

Merge branches 'doc.2019.12.10a', 'exp.2019.12.09a', 'fixes.2020.01.24a', 'kfree_rcu.2020.01.24a', 'list.2020.01.10a', 'preempt.2020.01.24a' and 'torture.2019.12.09a' into HEAD

2020-01-24 10:37:27 -08:00

srcutiny.c

rcu: Use CONFIG_PREEMPTION where appropriate

2019-12-09 12:37:51 -08:00

srcutree.c

Merge branches 'doc.2019.12.10a', 'exp.2019.12.09a', 'fixes.2020.01.24a', 'kfree_rcu.2020.01.24a', 'list.2020.01.10a', 'preempt.2020.01.24a' and 'torture.2019.12.09a' into HEAD

2020-01-24 10:37:27 -08:00

sync.c

rcu/sync: Simplify the state machine

2019-05-28 09:05:23 -07:00

tiny.c

rcu: Remove kfree_rcu() special casing and lazy-callback handling

2020-01-24 10:24:31 -08:00

tree_exp.h

rcu: Add WRITE_ONCE to rcu_node ->exp_seq_rq store

2020-02-20 15:58:22 -08:00

tree_plugin.h

Merge branches 'doc.2019.12.10a', 'exp.2019.12.09a', 'fixes.2020.01.24a', 'kfree_rcu.2020.01.24a', 'list.2020.01.10a', 'preempt.2020.01.24a' and 'torture.2019.12.09a' into HEAD

2020-01-24 10:37:27 -08:00

tree_stall.h

Merge branches 'doc.2019.12.10a', 'exp.2019.12.09a', 'fixes.2020.01.24a', 'kfree_rcu.2020.01.24a', 'list.2020.01.10a', 'preempt.2020.01.24a' and 'torture.2019.12.09a' into HEAD

2020-01-24 10:37:27 -08:00

tree.c

rcu: Add WRITE_ONCE() to rcu_state ->gp_req_activity

2020-02-20 15:58:22 -08:00

tree.h

Merge branches 'doc.2019.12.10a', 'exp.2019.12.09a', 'fixes.2020.01.24a', 'kfree_rcu.2020.01.24a', 'list.2020.01.10a', 'preempt.2020.01.24a' and 'torture.2019.12.09a' into HEAD

2020-01-24 10:37:27 -08:00

update.c

Merge branches 'doc.2019.12.10a', 'exp.2019.12.09a', 'fixes.2020.01.24a', 'kfree_rcu.2020.01.24a', 'list.2020.01.10a', 'preempt.2020.01.24a' and 'torture.2019.12.09a' into HEAD

2020-01-24 10:37:27 -08:00