linux/kernel/rcu
Paul E. McKenney 065a6db12a rcu: Add READ_ONCE and data_race() to rcu_node ->boost_tasks
The rcu_node structure's ->boost_tasks field is read locklessly, so this
commit adds the READ_ONCE() to one load in order to avoid destructive
compiler optimizations.  The other load is from a diagnostic print,
so data_race() suffices.

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>
2020-04-27 11:01:16 -07:00
..
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 dead code from rcu_segcblist_insert_pend_cbs() 2020-02-20 15:58:23 -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 Merge branches 'doc.2020.02.27a', 'fixes.2020.03.21a', 'kfree_rcu.2020.02.20a', 'locktorture.2020.02.20a', 'ovld.2020.02.20a', 'rcu-tasks.2020.02.20a', 'srcu.2020.02.20a' and 'torture.2020.02.20a' into HEAD 2020-03-21 17:15:11 -07:00
rcuperf.c rcuperf: Measure memory footprint during kfree_rcu() test 2020-02-20 16:03:31 -08:00
rcutorture.c rcutorture: Manually clean up after rcu_barrier() failure 2020-02-20 16:03:31 -08:00
srcutiny.c rcu: Use CONFIG_PREEMPTION where appropriate 2019-12-09 12:37:51 -08:00
srcutree.c srcu: Add KCSAN stubs 2020-04-27 11:01:15 -07:00
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 *_ONCE() and data_race() to rcu_node ->exp_tasks plus locking 2020-04-27 11:01:15 -07:00
tree_plugin.h rcu: Add READ_ONCE and data_race() to rcu_node ->boost_tasks 2020-04-27 11:01:16 -07:00
tree_stall.h Merge branches 'doc.2020.02.27a', 'fixes.2020.03.21a', 'kfree_rcu.2020.02.20a', 'locktorture.2020.02.20a', 'ovld.2020.02.20a', 'rcu-tasks.2020.02.20a', 'srcu.2020.02.20a' and 'torture.2020.02.20a' into HEAD 2020-03-21 17:15:11 -07:00
tree.c rcu: Mark rcu_state.ncpus to detect concurrent writes 2020-04-27 11:01:15 -07:00
tree.h rcu: React to callback overload by aggressively seeking quiescent states 2020-02-20 16:00:20 -08:00
update.c Merge branch 'locking-core-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip 2020-03-30 16:17:15 -07:00