Max Kellermann 2da20fd904 kernel/rcu/tree_stall: add /sys/kernel/rcu_stall_count ...

Expose a simple counter to userspace for monitoring tools.

(akpm: 2536c5c7d6 added the documentation but the code changes were lost)

Link: https://lkml.kernel.org/r/20250504180831.4190860-3-max.kellermann@ionos.com
Fixes: 2536c5c7d6 ("kernel/rcu/tree_stall: add /sys/kernel/rcu_stall_count")
Signed-off-by: Max Kellermann <max.kellermann@ionos.com>
Cc: Core Minyard <cminyard@mvista.com>
Cc: Doug Anderson <dianders@chromium.org>
Cc: Joel Granados <joel.granados@kernel.org>
Cc: Max Kellermann <max.kellermann@ionos.com>
Cc: Song Liu <song@kernel.org>
Cc: Sourabh Jain <sourabhjain@linux.ibm.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>

2025-06-05 22:02:25 -07:00

..

Kconfig

srcu: Make FORCE_NEED_SRCU_NMI_SAFE depend on RCU_EXPERT

2025-03-28 21:19:17 -07:00

Kconfig.debug

rcutorture: Move RCU_TORTURE_TEST_{CHK_RDR_STATE,LOG_CPU} to bool

2025-02-05 07:14:40 -08:00

Makefile

…

rcu_segcblist.c

…

rcu_segcblist.h

…

rcu.h

Merge branches 'rcu/misc-for-6.16', 'rcu/seq-counters-for-6.16' and 'rcu/torture-for-6.16' into rcu/for-next

2025-05-16 11:18:16 -04:00

rcuscale.c

rcuscale: using kcalloc() to relpace kmalloc()

2025-05-16 09:00:54 -04:00

rcutorture.c

Merge tag 'timers-cleanups-2025-05-25' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip

2025-05-27 08:31:21 -07:00

refscale.c

refscale: Add srcu_read_lock_fast() support using "srcu-fast"

2025-02-05 07:12:05 -08:00

srcutiny.c

Merge branches 'docs.2025.02.04a', 'lazypreempt.2025.03.04a', 'misc.2025.03.04a', 'srcu.2025.02.05a' and 'torture.2025.02.05a'

2025-03-04 18:47:32 -08:00

srcutree.c

srcu: Use rcu_seq_done_exact() for polling API

2025-04-08 14:55:55 -04:00

sync.c

…

tasks.h

treewide: Switch/rename to timer_delete[_sync]()

2025-04-05 10:30:12 +02:00

tiny.c

Merge tag 'rcu-next-v6.15' of git://git.kernel.org/pub/scm/linux/kernel/git/rcu/linux

2025-03-24 19:41:37 -07:00

tree_exp.h

rcu: Remove swake_up_one_online() bandaid

2025-05-16 09:00:54 -04:00

tree_nocb.h

Revert "rcu/nocb: Fix rcuog wake-up from offline softirq"

2025-05-16 09:00:54 -04:00

tree_plugin.h

rcu/nocb: Add Safe checks for access offloaded rdp

2025-05-16 09:00:54 -04:00

tree_stall.h

kernel/rcu/tree_stall: add /sys/kernel/rcu_stall_count

2025-06-05 22:02:25 -07:00

tree.c

Merge branches 'rcu/misc-for-6.16', 'rcu/seq-counters-for-6.16' and 'rcu/torture-for-6.16' into rcu/for-next

2025-05-16 11:18:16 -04:00

tree.h

Merge branches 'rcu/misc-for-6.16', 'rcu/seq-counters-for-6.16' and 'rcu/torture-for-6.16' into rcu/for-next

2025-05-16 11:18:16 -04:00

update.c

torture: Add dowarn argument to torture_sched_setaffinity()

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