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linux-stable/kernel/rcu
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Paul E. McKenney e2c73a6860 rcu: Remove the RCU_FAST_NO_HZ Kconfig option 
All of the uses of CONFIG_RCU_FAST_NO_HZ=y that I have seen involve
systems with RCU callbacks offloaded.  In this situation, all that this
Kconfig option does is slow down idle entry/exit with an additional
allways-taken early exit.  If this is the only use case, then this
Kconfig option nothing but an attractive nuisance that needs to go away.

This commit therefore removes the RCU_FAST_NO_HZ Kconfig option.

Signed-off-by: Paul E. McKenney <paulmck@kernel.org>
2021-11-30 17:24:47 -08:00
..
Kconfig rcu: Remove the RCU_FAST_NO_HZ Kconfig option 2021-11-30 17:24:47 -08:00
Kconfig.debug rcu: Restrict RCU_STRICT_GRACE_PERIOD to at most four CPUs 2021-05-10 16:22:54 -07:00
Makefile rcuperf: Change rcuperf to rcuscale 2020-08-24 18:39:24 -07:00
rcu.h Merge branches 'bitmaprange.2021.05.10c', 'doc.2021.05.10c', 'fixes.2021.05.13a', 'kvfree_rcu.2021.05.10c', 'mmdumpobj.2021.05.10c', 'nocb.2021.05.12a', 'srcu.2021.05.12a', 'tasks.2021.05.18a' and 'torture.2021.05.10c' into HEAD 2021-05-18 10:56:19 -07:00
rcu_segcblist.c rcu/nocb: Remove stale comment above rcu_segcblist_offload() 2021-03-15 13:54:54 -07:00
rcu_segcblist.h rcu/nocb: Code-style nits in callback-offloading toggling 2021-01-06 16:47:55 -08:00
rcuscale.c rcuscale: Warn on individual rcu_scale_init() error conditions 2021-09-13 16:36:16 -07:00
rcutorture.c Merge branches 'fixes.2021.10.07a', 'scftorture.2021.09.16a', 'tasks.2021.09.15a', 'torture.2021.09.13b' and 'torturescript.2021.09.16a' into HEAD 2021-10-07 10:02:17 -07:00
refscale.c refscale: Warn on individual ref_scale_init() error conditions 2021-09-13 16:36:16 -07:00
srcutiny.c srcutiny: Mark read-side data races 2021-08-06 13:41:48 -07:00
srcutree.c Merge branches 'bitmaprange.2021.05.10c', 'doc.2021.05.10c', 'fixes.2021.05.13a', 'kvfree_rcu.2021.05.10c', 'mmdumpobj.2021.05.10c', 'nocb.2021.05.12a', 'srcu.2021.05.12a', 'tasks.2021.05.18a' and 'torture.2021.05.10c' into HEAD 2021-05-18 10:56:19 -07:00
sync.c rcu: Fix various typos in comments 2021-05-12 12:11:05 -07:00
tasks.h RCU pull request for v5.16 2021-11-01 20:25:38 -07:00
tiny.c srcu: Initialize SRCU after timers 2021-05-10 16:03:35 -07:00
tree.c rcu: Remove the RCU_FAST_NO_HZ Kconfig option 2021-11-30 17:24:47 -08:00
tree.h rcu: Remove the RCU_FAST_NO_HZ Kconfig option 2021-11-30 17:24:47 -08:00
tree_exp.h rcu: Fix existing exp request check in sync_sched_exp_online_cleanup() 2021-09-13 16:32:46 -07:00
tree_nocb.h rcu-nocb: Fix a couple of tree_nocb code-style nits 2021-09-13 16:32:45 -07:00
tree_plugin.h rcu: Remove the RCU_FAST_NO_HZ Kconfig option 2021-11-30 17:24:47 -08:00
tree_stall.h rcu: Remove the RCU_FAST_NO_HZ Kconfig option 2021-11-30 17:24:47 -08:00
update.c RCU pull request for v5.16 2021-11-01 20:25:38 -07:00