cpufreq/sched: Set need_freq_update in ignore_dl_rate_limit()

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Notice that ignore_dl_rate_limit() need not piggy back on the
limits_changed handling to achieve its goal (which is to enforce a
frequency update before its due time).

Namely, if sugov_should_update_freq() is updated to check
sg_policy->need_freq_update and return 'true' if it is set when
sg_policy->limits_changed is not set, ignore_dl_rate_limit() may
set the former directly instead of setting the latter, so it can
avoid hitting the memory barrier in sugov_should_update_freq().

Update the code accordingly.

Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Reviewed-by: Christian Loehle <christian.loehle@arm.com>
Link: https://patch.msgid.link/10666429.nUPlyArG6x@rjwysocki.net

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Rafael J. Wysocki 2025-04-15 12:00:52 +02:00

parent 79443a7e9d

commit 75da043d8f

1 changed files with 4 additions and 1 deletions

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kernel/sched/cpufreq_schedutil.c

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