add at24 driver

hc

2023-11-06 15ade055295d13f95d49e3d99b09f3bbfb4a43e7

 kernel/kernel/cgroup/rstat.c
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@@ -149,8 +149,9 @@
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 		raw_spinlock_t *cpu_lock = per_cpu_ptr(&cgroup_rstat_cpu_lock,
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 						       cpu);
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 		struct cgroup *pos = NULL;
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+		unsigned long flags;
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-		raw_spin_lock(cpu_lock);
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+		raw_spin_lock_irqsave(cpu_lock, flags);
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 		while ((pos = cgroup_rstat_cpu_pop_updated(pos, cgrp, cpu))) {
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 			struct cgroup_subsys_state *css;
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@@ -162,7 +163,7 @@
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 				css->ss->css_rstat_flush(css, cpu);
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 			rcu_read_unlock();
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 		}
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-		raw_spin_unlock(cpu_lock);
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+		raw_spin_unlock_irqrestore(cpu_lock, flags);
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 		/* if @may_sleep, play nice and yield if necessary */
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 		if (may_sleep && (need_resched() ||