Public bug reported:
Backport sched/fair: Drop redundant RCU read lock in NOHZ kick path plus
a fix that targets this commit
commit c9d93a73ce87 ("sched/fair: Drop redundant RCU read lock in NOHZ kick
path")
commit 25139c11693a ("sched/fair: Fix RCU usage in NOHZ exit path on CPU
offline")
lore: https://lore.kernel.org/all/[email protected]/
lore (fix):
https://lore.kernel.org/all/[email protected]/
The main patch is part of a series "[PATCH v6 0/5 RESEND] sched/fair: SMT-aware
asymmetric CPU capacity", though the other patches were already applied as
sauce patches before this patch was included in the series. This is the only
patch that is now missing and needing to be backported.
Remaining patches in the series located in linux-nvidia-bos:
4a2d4acede39 ("NVIDIA: VR: SAUCE: sched/fair: Attach sched_domain_shared to
sd_asym_cpucapacity")
b76f5eb20edc ("NVIDIA: VR: SAUCE: sched/fair: Prefer fully-idle SMT cores in
asym-capacity idle selection")
90cc25da9941 ("NVIDIA: VR: SAUCE: sched/fair: Reject misfit pulls onto busy SMT
siblings on asym-capacity")
4447b0574d87 ("NVIDIA: VR: SAUCE: sched/fair: Add SIS_UTIL support to
select_idle_capacity()")
** Affects: linux-nvidia-bos (Ubuntu)
Importance: Undecided
Status: New
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https://bugs.launchpad.net/bugs/2162538
Title:
backport: sched/fair: Drop redundant RCU read lock in NOHZ kick path
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