smp: Remove preempt_disable() from smp_call_function()

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smp_call_function_many_cond() handles the preemption and CPU pinning
requirements internally. smp_call_function() only forwards the request to
that helper for cpu_online_mask and does not access CPU-local state on
its own.

Remove the outer preempt_disable() and preempt_enable() pair from
smp_call_function().

Signed-off-by: Chuyi Zhou <zhouchuyi@bytedance.com>
Signed-off-by: Thomas Gleixner <tglx@kernel.org>
Tested-by: Paul E. McKenney <paulmck@kernel.org>
Reviewed-by: Muchun Song <muchun.song@linux.dev>
Reviewed-by: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
Link: https://patch.msgid.link/20260709122933.4021501-8-zhouchuyi@bytedance.com

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Chuyi Zhou 2026-07-09 20:29:26 +08:00 • committed by Thomas Gleixner

parent 8df8a60283

commit 66344732b0

1 changed files with 6 additions and 7 deletions

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kernel/smp.c

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