iv/linux
1
0
Fork 0
Code Issues Pull Requests Actions Packages Projects Releases Wiki Activity
15d44dfa40
linux/kernel/rcu
History
Paul E. McKenney 15d44dfa40 rcu: Make rcu_cpu_starting() rely on interrupts being disabled 
Currently, rcu_cpu_starting() is written so that it might be invoked
with interrupts enabled.  However, it is always called when interrupts
are disabled, either by rcu_init(), notify_cpu_starting(), or from a
call point prior to the call to notify_cpu_starting().

But why bother requiring that interrupts be disabled?  The purpose is
to allow the rcu_data structure's ->beenonline flag to be set after all
early processing has completed for the incoming CPU, thus allowing this
flag to be used to determine when workqueues have been set up for the
incoming CPU, while still allowing this flag to be used as a diagnostic
within rcu_core().

This commit therefore makes rcu_cpu_starting() rely on interrupts being
disabled.

Signed-off-by: Paul E. McKenney <paulmck@kernel.org>
2023-05-11 13:42:39 -07:00
..
Kconfig rcu: Employ jiffies-based backstop to callback time limit 2023-05-11 13:42:39 -07:00
Kconfig.debug rcu: Allow up to five minutes expedited RCU CPU stall-warning timeouts 2023-01-09 12:09:52 -08:00
Makefile rcuperf: Change rcuperf to rcuscale 2020-08-24 18:39:24 -07:00
rcu_segcblist.c rcu: Throttle callback invocation based on number of ready callbacks 2023-01-03 17:28:34 -08:00
rcu_segcblist.h rcu: Throttle callback invocation based on number of ready callbacks 2023-01-03 17:28:34 -08:00
rcu.h Merge branches 'rcu/staging-core', 'rcu/staging-docs' and 'rcu/staging-kfree', remote-tracking branches 'paul/srcu-cf.2023.04.04a', 'fbq/rcu/lockdep.2023.03.27a' and 'fbq/rcu/rcutorture.2023.03.20a' into rcu/staging 2023-04-05 13:50:37 +00:00
rcuscale.c Merge branches 'rcu/staging-core', 'rcu/staging-docs' and 'rcu/staging-kfree', remote-tracking branches 'paul/srcu-cf.2023.04.04a', 'fbq/rcu/lockdep.2023.03.27a' and 'fbq/rcu/rcutorture.2023.03.20a' into rcu/staging 2023-04-05 13:50:37 +00:00
rcutorture.c Merge branches 'rcu/staging-core', 'rcu/staging-docs' and 'rcu/staging-kfree', remote-tracking branches 'paul/srcu-cf.2023.04.04a', 'fbq/rcu/lockdep.2023.03.27a' and 'fbq/rcu/rcutorture.2023.03.20a' into rcu/staging 2023-04-05 13:50:37 +00:00
refscale.c refscale: Move shutdown from wait_event() to wait_event_idle() 2023-03-20 11:12:16 -07:00
srcutiny.c rcu: Annotate SRCU's update-side lockdep dependencies 2023-03-27 11:15:59 -07:00
srcutree.c Merge branches 'rcu/staging-core', 'rcu/staging-docs' and 'rcu/staging-kfree', remote-tracking branches 'paul/srcu-cf.2023.04.04a', 'fbq/rcu/lockdep.2023.03.27a' and 'fbq/rcu/rcutorture.2023.03.20a' into rcu/staging 2023-04-05 13:50:37 +00:00
sync.c rcu/sync: Use call_rcu_hurry() instead of call_rcu 2022-11-29 14:04:33 -08:00
tasks.h Merge branches 'rcu/staging-core', 'rcu/staging-docs' and 'rcu/staging-kfree', remote-tracking branches 'paul/srcu-cf.2023.04.04a', 'fbq/rcu/lockdep.2023.03.27a' and 'fbq/rcu/rcutorture.2023.03.20a' into rcu/staging 2023-04-05 13:50:37 +00:00
tiny.c rcu: Refactor kvfree_call_rcu() and high-level helpers 2023-01-03 17:48:40 -08:00
tree_exp.h rcu: Mark additional concurrent load from ->cpu_no_qs.b.exp 2023-05-11 13:42:39 -07:00
tree_nocb.h rcu: Register rcu-lazy shrinker only for CONFIG_RCU_LAZY=y kernels 2023-04-05 13:47:43 +00:00
tree_plugin.h rcu: Mark additional concurrent load from ->cpu_no_qs.b.exp 2023-05-11 13:42:39 -07:00
tree_stall.h rcu: Allow up to five minutes expedited RCU CPU stall-warning timeouts 2023-01-09 12:09:52 -08:00
tree.c rcu: Make rcu_cpu_starting() rely on interrupts being disabled 2023-05-11 13:42:39 -07:00
tree.h rcu: Add RCU stall diagnosis information 2023-01-05 12:21:11 -08:00
update.c Merge branch 'stall.2023.01.09a' into HEAD 2023-02-02 16:40:07 -08:00