mm/vmstat: Use preempt_[dis|en]able_nested()
Replace the open coded CONFIG_PREEMPT_RT conditional preempt_enable/disable() pairs with the new helper functions which hide the underlying implementation details. Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Signed-off-by: Sebastian Andrzej Siewior <bigeasy@linutronix.de> Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Acked-by: Peter Zijlstra (Intel) <peterz@infradead.org> Acked-by: Michal Hocko <mhocko@suse.com> Link: https://lore.kernel.org/r/20220825164131.402717-4-bigeasy@linutronix.de
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Родитель
93f6d4e189
Коммит
7a025e91ab
36
mm/vmstat.c
36
mm/vmstat.c
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@ -355,8 +355,7 @@ void __mod_zone_page_state(struct zone *zone, enum zone_stat_item item,
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* CPU migrations and preemption potentially corrupts a counter so
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* disable preemption.
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*/
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if (IS_ENABLED(CONFIG_PREEMPT_RT))
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preempt_disable();
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preempt_disable_nested();
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x = delta + __this_cpu_read(*p);
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@ -368,8 +367,7 @@ void __mod_zone_page_state(struct zone *zone, enum zone_stat_item item,
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}
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__this_cpu_write(*p, x);
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if (IS_ENABLED(CONFIG_PREEMPT_RT))
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preempt_enable();
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preempt_enable_nested();
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}
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EXPORT_SYMBOL(__mod_zone_page_state);
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@ -393,8 +391,7 @@ void __mod_node_page_state(struct pglist_data *pgdat, enum node_stat_item item,
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}
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/* See __mod_node_page_state */
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if (IS_ENABLED(CONFIG_PREEMPT_RT))
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preempt_disable();
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preempt_disable_nested();
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x = delta + __this_cpu_read(*p);
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@ -406,8 +403,7 @@ void __mod_node_page_state(struct pglist_data *pgdat, enum node_stat_item item,
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}
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__this_cpu_write(*p, x);
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if (IS_ENABLED(CONFIG_PREEMPT_RT))
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preempt_enable();
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preempt_enable_nested();
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}
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EXPORT_SYMBOL(__mod_node_page_state);
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@ -441,8 +437,7 @@ void __inc_zone_state(struct zone *zone, enum zone_stat_item item)
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s8 v, t;
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/* See __mod_node_page_state */
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if (IS_ENABLED(CONFIG_PREEMPT_RT))
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preempt_disable();
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preempt_disable_nested();
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v = __this_cpu_inc_return(*p);
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t = __this_cpu_read(pcp->stat_threshold);
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@ -453,8 +448,7 @@ void __inc_zone_state(struct zone *zone, enum zone_stat_item item)
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__this_cpu_write(*p, -overstep);
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}
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if (IS_ENABLED(CONFIG_PREEMPT_RT))
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preempt_enable();
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preempt_enable_nested();
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}
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void __inc_node_state(struct pglist_data *pgdat, enum node_stat_item item)
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@ -466,8 +460,7 @@ void __inc_node_state(struct pglist_data *pgdat, enum node_stat_item item)
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VM_WARN_ON_ONCE(vmstat_item_in_bytes(item));
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/* See __mod_node_page_state */
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if (IS_ENABLED(CONFIG_PREEMPT_RT))
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preempt_disable();
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preempt_disable_nested();
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v = __this_cpu_inc_return(*p);
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t = __this_cpu_read(pcp->stat_threshold);
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@ -478,8 +471,7 @@ void __inc_node_state(struct pglist_data *pgdat, enum node_stat_item item)
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__this_cpu_write(*p, -overstep);
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}
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if (IS_ENABLED(CONFIG_PREEMPT_RT))
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preempt_enable();
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preempt_enable_nested();
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}
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void __inc_zone_page_state(struct page *page, enum zone_stat_item item)
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@ -501,8 +493,7 @@ void __dec_zone_state(struct zone *zone, enum zone_stat_item item)
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s8 v, t;
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/* See __mod_node_page_state */
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if (IS_ENABLED(CONFIG_PREEMPT_RT))
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preempt_disable();
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preempt_disable_nested();
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v = __this_cpu_dec_return(*p);
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t = __this_cpu_read(pcp->stat_threshold);
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@ -513,8 +504,7 @@ void __dec_zone_state(struct zone *zone, enum zone_stat_item item)
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__this_cpu_write(*p, overstep);
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}
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if (IS_ENABLED(CONFIG_PREEMPT_RT))
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preempt_enable();
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preempt_enable_nested();
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}
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void __dec_node_state(struct pglist_data *pgdat, enum node_stat_item item)
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@ -526,8 +516,7 @@ void __dec_node_state(struct pglist_data *pgdat, enum node_stat_item item)
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VM_WARN_ON_ONCE(vmstat_item_in_bytes(item));
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/* See __mod_node_page_state */
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if (IS_ENABLED(CONFIG_PREEMPT_RT))
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preempt_disable();
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preempt_disable_nested();
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v = __this_cpu_dec_return(*p);
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t = __this_cpu_read(pcp->stat_threshold);
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@ -538,8 +527,7 @@ void __dec_node_state(struct pglist_data *pgdat, enum node_stat_item item)
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__this_cpu_write(*p, overstep);
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}
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if (IS_ENABLED(CONFIG_PREEMPT_RT))
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preempt_enable();
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preempt_enable_nested();
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}
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void __dec_zone_page_state(struct page *page, enum zone_stat_item item)
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