Ankur Arora fcf0e25ad4 rcu: handle unstable rdp in rcu_read_unlock_strict() ...

rcu_read_unlock_strict() can be called with preemption enabled
which can make for an unstable rdp and a racy norm value.

Fix this by dropping the preempt-count in __rcu_read_unlock()
after the call to rcu_read_unlock_strict(), adjusting the
preempt-count check appropriately.

Suggested-by: Frederic Weisbecker <frederic@kernel.org>
Signed-off-by: Ankur Arora <ankur.a.arora@oracle.com>
Reviewed-by: Frederic Weisbecker <frederic@kernel.org>
Signed-off-by: Paul E. McKenney <paulmck@kernel.org>
Signed-off-by: Boqun Feng <boqun.feng@gmail.com>

2025-02-05 07:01:55 -08:00

..

Kconfig

rcu: rename PREEMPT_AUTO to PREEMPT_LAZY

2025-02-05 07:01:55 -08:00

Kconfig.debug

rcutorture: Make rcutorture_one_extend() check reader state

2024-12-14 17:04:55 +01:00

Makefile

…

rcu_segcblist.c

rcu/nocb: Simplify (de-)offloading state machine

2024-09-09 00:03:55 +05:30

rcu_segcblist.h

rcu: Remove unused declaration rcu_segcblist_offload()

2024-10-22 15:36:56 +02:00

rcu.h

Merge branches 'context_tracking.15.08.24a', 'csd.lock.15.08.24a', 'nocb.09.09.24a', 'rcutorture.14.08.24a', 'rcustall.09.09.24a', 'srcu.12.08.24a', 'rcu.tasks.14.08.24a', 'rcu_scaling_tests.15.08.24a', 'fixes.12.08.24a' and 'misc.11.08.24a' into next.09.09.24a

2024-09-09 00:09:47 +05:30

rcuscale.c

rcuscale: Remove redundant WARN_ON_ONCE() splat

2024-11-15 22:24:41 +01:00

rcutorture.c

rcutorture: Use symbols for SRCU reader flavors

2024-12-14 17:06:08 +01:00

refscale.c

refscale: Add test for sched_clock()

2024-12-14 16:16:33 +01:00

srcutiny.c

rcu: rename PREEMPT_AUTO to PREEMPT_LAZY

2025-02-05 07:01:55 -08:00

srcutree.c

srcu: Remove redundant GP sequence checks in srcu_funnel_gp_start

2024-12-14 17:13:24 +01:00

sync.c

rcu: Eliminate lockless accesses to rcu_sync->gp_count

2024-07-04 13:48:57 -07:00

tasks.h

RCU pull request for v6.13

2024-11-19 11:27:07 -08:00

tiny.c

kasan: make kasan_record_aux_stack_noalloc() the default behaviour

2025-01-13 22:40:36 -08:00

tree_exp.h

rcu: Add lockdep_assert_irqs_disabled() to rcu_exp_need_qs()

2024-12-14 17:10:38 +01:00

tree_nocb.h

rcu/nocb: Fix missed RCU barrier on deoffloading

2024-11-12 22:51:52 +01:00

tree_plugin.h

rcu: handle unstable rdp in rcu_read_unlock_strict()

2025-02-05 07:01:55 -08:00

tree_stall.h

rcu: Finer-grained grace-period-end checks in rcu_dump_cpu_stacks()

2024-11-03 21:55:35 +01:00

tree.c

The various patchsets are summarized below. Plus of course many

2025-01-26 18:36:23 -08:00

tree.h

Merge branches 'context_tracking.15.08.24a', 'csd.lock.15.08.24a', 'nocb.09.09.24a', 'rcutorture.14.08.24a', 'rcustall.09.09.24a', 'srcu.12.08.24a', 'rcu.tasks.14.08.24a', 'rcu_scaling_tests.15.08.24a', 'fixes.12.08.24a' and 'misc.11.08.24a' into next.09.09.24a

2024-09-09 00:09:47 +05:30

update.c

torture: Add dowarn argument to torture_sched_setaffinity()

2024-12-14 16:38:23 +01:00