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[v2,0/2] rcu: Make rcu_normal_after_boot writable again

Message ID 20210810084816.155203-1-juri.lelli@redhat.com
Headers show
Series rcu: Make rcu_normal_after_boot writable again | expand

Message

Juri Lelli Aug. 10, 2021, 8:48 a.m. UTC 
Hi,

v2 of a proposed RCU change to make rcu_normal_after_boot feature usable
on PREEMPT_RT as well, as it turns out it's useful on RT as well on
NO_HZ_FULL configurations.

v2 gained an additional patch to revise rcu update module parameters
permissions (as suggested during v1 review [1]).

Changes wrt v1:

 - Restrict the option to !PREEMPT_RT || NO_HZ_FULL (Paul, Sebastian)
 - Change module params permissions (Paul) (02/02)

Thanks,
Juri

v1 - https://lore.kernel.org/lkml/20210805080123.16320-1-juri.lelli@redhat.com/

Juri Lelli (2):
  rcu: Make rcu_normal_after_boot writable again
  rcu: Make rcu update module parameters world-readable

 kernel/rcu/tree_exp.h | 1 -
 kernel/rcu/update.c   | 8 ++++----
 2 files changed, 4 insertions(+), 5 deletions(-)