softirq: Use __this_cpu_write() in takeover_tasklets()
The code is executed with interrupts disabled, so it's safe to use __this_cpu_write(). [ tglx: Massaged changelog ] Signed-off-by: Muchun Song <smuchun@gmail.com> Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Cc: joel@joelfernandes.org Cc: rostedt@goodmis.org Cc: frederic@kernel.org Cc: paulmck@linux.vnet.ibm.com Cc: alexander.levin@verizon.com Cc: peterz@infradead.org Link: https://lkml.kernel.org/r/20190618143305.2038-1-smuchun@gmail.com
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@ -650,7 +650,7 @@ static int takeover_tasklets(unsigned int cpu)
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/* Find end, append list for that CPU. */
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if (&per_cpu(tasklet_vec, cpu).head != per_cpu(tasklet_vec, cpu).tail) {
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*__this_cpu_read(tasklet_vec.tail) = per_cpu(tasklet_vec, cpu).head;
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this_cpu_write(tasklet_vec.tail, per_cpu(tasklet_vec, cpu).tail);
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__this_cpu_write(tasklet_vec.tail, per_cpu(tasklet_vec, cpu).tail);
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per_cpu(tasklet_vec, cpu).head = NULL;
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per_cpu(tasklet_vec, cpu).tail = &per_cpu(tasklet_vec, cpu).head;
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}
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