Frederic Weisbecker 5de2e5bb80 rcu/nocb: Comment the reason behind BH disablement on batch processing ...

This commit explains why softirqs need to be disabled while invoking
callbacks, even when callback processing has been offloaded.  After
all, invoking callbacks concurrently is one thing, but concurrently
invoking the same callback is quite another.

Reported-by: Boqun Feng <boqun.feng@gmail.com>
Reported-by: Paul E. McKenney <paulmck@kernel.org>
Cc: Josh Triplett <josh@joshtriplett.org>
Cc: Lai Jiangshan <jiangshanlai@gmail.com>
Cc: Joel Fernandes <joel@joelfernandes.org>
Cc: Neeraj Upadhyay <neeraju@codeaurora.org>
Cc: Boqun Feng <boqun.feng@gmail.com>
Signed-off-by: Frederic Weisbecker <frederic@kernel.org>
Signed-off-by: Paul E. McKenney <paulmck@kernel.org>

2021-03-08 14:20:20 -08:00

..

Kconfig

Merge branches 'doc.2021.01.06a', 'fixes.2021.01.04b', 'kfree_rcu.2021.01.04a', 'mmdumpobj.2021.01.22a', 'nocb.2021.01.06a', 'rt.2021.01.04a', 'stall.2021.01.06a', 'torture.2021.01.12a' and 'tortureall.2021.01.06a' into HEAD

2021-01-22 15:26:44 -08:00

Kconfig.debug

Merge branch 'strictgp.2020.08.24a' into HEAD

2020-09-03 09:47:42 -07:00

Makefile

rcuperf: Change rcuperf to rcuscale

2020-08-24 18:39:24 -07:00

rcu_segcblist.c

rcu/nocb: De-offloading CB kthread

2021-01-06 16:24:19 -08:00

rcu_segcblist.h

rcu/nocb: Code-style nits in callback-offloading toggling

2021-01-06 16:47:55 -08:00

rcu.h

Merge branches 'doc.2021.01.06a', 'fixes.2021.01.04b', 'kfree_rcu.2021.01.04a', 'mmdumpobj.2021.01.22a', 'nocb.2021.01.06a', 'rt.2021.01.04a', 'stall.2021.01.06a', 'torture.2021.01.12a' and 'tortureall.2021.01.06a' into HEAD

2021-01-22 15:26:44 -08:00

rcuscale.c

rcuscale: Prevent hangs for invalid arguments

2020-11-06 17:13:51 -08:00

rcutorture.c

Merge branches 'doc.2021.01.06a', 'fixes.2021.01.04b', 'kfree_rcu.2021.01.04a', 'mmdumpobj.2021.01.22a', 'nocb.2021.01.06a', 'rt.2021.01.04a', 'stall.2021.01.06a', 'torture.2021.01.12a' and 'tortureall.2021.01.06a' into HEAD

2021-01-22 15:26:44 -08:00

refscale.c

torture: Make refscale throttle high-rate printk()s

2021-01-06 17:17:20 -08:00

srcutiny.c

srcu: Provide polling interfaces for Tiny SRCU grace periods

2021-01-04 13:53:38 -08:00

srcutree.c

Merge branches 'doc.2021.01.06a', 'fixes.2021.01.04b', 'kfree_rcu.2021.01.04a', 'mmdumpobj.2021.01.22a', 'nocb.2021.01.06a', 'rt.2021.01.04a', 'stall.2021.01.06a', 'torture.2021.01.12a' and 'tortureall.2021.01.06a' into HEAD

2021-01-22 15:26:44 -08:00

sync.c

rcu/sync: Simplify the state machine

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

tasks.h

Merge branches 'doc.2021.01.06a', 'fixes.2021.01.04b', 'kfree_rcu.2021.01.04a', 'mmdumpobj.2021.01.22a', 'nocb.2021.01.06a', 'rt.2021.01.04a', 'stall.2021.01.06a', 'torture.2021.01.12a' and 'tortureall.2021.01.06a' into HEAD

2021-01-22 15:26:44 -08:00

tiny.c

rcu: Rename *_kfree_callback/*_kfree_rcu_offset/kfree_call_*

2020-06-29 11:59:25 -07:00

tree_exp.h

rcu: Mark obtuse portion of stall warning as internal debug

2021-01-04 13:54:40 -08:00

tree_plugin.h

rcu/nocb: Comment the reason behind BH disablement on batch processing

2021-03-08 14:20:20 -08:00

tree_stall.h

Merge branches 'doc.2021.01.06a', 'fixes.2021.01.04b', 'kfree_rcu.2021.01.04a', 'mmdumpobj.2021.01.22a', 'nocb.2021.01.06a', 'rt.2021.01.04a', 'stall.2021.01.06a', 'torture.2021.01.12a' and 'tortureall.2021.01.06a' into HEAD

2021-01-22 15:26:44 -08:00

tree.c

rcu/nocb: Detect unsafe checks for offloaded rdp

2021-03-08 14:20:20 -08:00

tree.h

Merge tag 'sched-core-2021-02-17' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip

2021-02-21 12:35:04 -08:00

update.c

rcu: Enable rcu_normal_after_boot unconditionally for RT

2021-01-04 13:43:51 -08:00