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a2b354b995
linux/kernel/rcu
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Paul E. McKenney a2b354b995 rcu: Add READ_ONCE() to rcu_do_batch() access to rcu_resched_ns 
Given that sysfs can change the value of rcu_resched_ns at any time,
this commit adds a READ_ONCE() to the sole access to that variable.
While in the area, this commit also adds bounds checking, clamping the
value to at least a millisecond, but no longer than a second.

Signed-off-by: Paul E. McKenney <paulmck@kernel.org>
2020-08-24 18:36:07 -07:00
..
Kconfig rcu-tasks: Add Kconfig option to mediate smp_mb() vs. IPI 2020-04-27 11:03:52 -07:00
Kconfig.debug refperf: Rename RCU_REF_PERF_TEST to RCU_REF_SCALE_TEST 2020-06-29 12:00:46 -07:00
Makefile refperf: Rename refperf.c to refscale.c and change internal names 2020-06-29 12:00:46 -07:00
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 'fixes.2020.04.27a', 'kfree_rcu.2020.04.27a', 'rcu-tasks.2020.04.27a', 'stall.2020.04.27a' and 'torture.2020.05.07a' into HEAD 2020-05-07 10:18:32 -07:00
rcuperf.c This tree adds the sched_set_fifo*() encapsulation APIs to remove 2020-08-06 11:55:43 -07:00
rcutorture.c This tree adds the sched_set_fifo*() encapsulation APIs to remove 2020-08-06 11:55:43 -07:00
refscale.c refperf: Rename refperf.c to refscale.c and change internal names 2020-06-29 12:00:46 -07:00
srcutiny.c rcu: Use CONFIG_PREEMPTION where appropriate 2019-12-09 12:37:51 -08:00
srcutree.c srcu: Remove KCSAN stubs 2020-08-24 18:36:03 -07:00
sync.c rcu/sync: Simplify the state machine 2019-05-28 09:05:23 -07:00
tasks.h Merge branches 'doc.2020.06.29a', 'fixes.2020.06.29a', 'kfree_rcu.2020.06.29a', 'rcu-tasks.2020.06.29a', 'scale.2020.06.29a', 'srcu.2020.06.29a' and 'torture.2020.06.29a' into HEAD 2020-06-29 12:03:15 -07:00
tiny.c rcu: Rename *_kfree_callback/*_kfree_rcu_offset/kfree_call_* 2020-06-29 11:59:25 -07:00
tree_exp.h rcu: Initialize at declaration time in rcu_exp_handler() 2020-08-24 18:36:03 -07:00
tree_plugin.h nocb: Remove show_rcu_nocb_state() false positive printout 2020-08-24 18:36:06 -07:00
tree_stall.h Merge branches 'doc.2020.06.29a', 'fixes.2020.06.29a', 'kfree_rcu.2020.06.29a', 'rcu-tasks.2020.06.29a', 'scale.2020.06.29a', 'srcu.2020.06.29a' and 'torture.2020.06.29a' into HEAD 2020-06-29 12:03:15 -07:00
tree.c rcu: Add READ_ONCE() to rcu_do_batch() access to rcu_resched_ns 2020-08-24 18:36:07 -07:00
tree.h rcu: grpnum just records group number 2020-06-29 11:58:51 -07:00
update.c rcu: Remove KCSAN stubs from update.c 2020-08-24 18:36:03 -07:00