diff options
| author | Thomas Gleixner <tglx@linutronix.de> | 2022-08-25 19:41:28 +0300 |
|---|---|---|
| committer | Thomas Gleixner <tglx@linutronix.de> | 2022-09-19 15:35:08 +0300 |
| commit | e575d401583273a7ac5dfb27520e41c821e81816 (patch) | |
| tree | fb16171bc6e879d5986c9b9eb634508dc4843cb4 /mm/memcontrol.c | |
| parent | a738e9bad6030d4fd33bfd7db3399a250b7e94d8 (diff) | |
| download | linux-e575d401583273a7ac5dfb27520e41c821e81816.tar.xz | |
mm/memcontrol: Replace the PREEMPT_RT conditionals
Use VM_WARN_ON_IRQS_ENABLED() and preempt_disable/enable_nested() to
replace the CONFIG_PREEMPT_RT #ifdeffery.
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>
Reviewed-by: Muchun Song <songmuchun@bytedance.com>
Acked-by: Johannes Weiner <hannes@cmpxchg.org>
Acked-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Acked-by: Michal Hocko <mhocko@suse.com>
Link: https://lore.kernel.org/r/20220825164131.402717-6-bigeasy@linutronix.de
Diffstat (limited to 'mm/memcontrol.c')
| -rw-r--r-- | mm/memcontrol.c | 19 |
1 files changed, 6 insertions, 13 deletions
diff --git a/mm/memcontrol.c b/mm/memcontrol.c index b69979c9ced5..d35b6fa560f0 100644 --- a/mm/memcontrol.c +++ b/mm/memcontrol.c @@ -597,25 +597,18 @@ static u64 flush_next_time; */ static void memcg_stats_lock(void) { -#ifdef CONFIG_PREEMPT_RT - preempt_disable(); -#else - VM_BUG_ON(!irqs_disabled()); -#endif + preempt_disable_nested(); + VM_WARN_ON_IRQS_ENABLED(); } static void __memcg_stats_lock(void) { -#ifdef CONFIG_PREEMPT_RT - preempt_disable(); -#endif + preempt_disable_nested(); } static void memcg_stats_unlock(void) { -#ifdef CONFIG_PREEMPT_RT - preempt_enable(); -#endif + preempt_enable_nested(); } static inline void memcg_rstat_updated(struct mem_cgroup *memcg, int val) @@ -715,7 +708,7 @@ void __mod_memcg_lruvec_state(struct lruvec *lruvec, enum node_stat_item idx, * interrupt context while other caller need to have disabled interrupt. */ __memcg_stats_lock(); - if (IS_ENABLED(CONFIG_DEBUG_VM) && !IS_ENABLED(CONFIG_PREEMPT_RT)) { + if (IS_ENABLED(CONFIG_DEBUG_VM)) { switch (idx) { case NR_ANON_MAPPED: case NR_FILE_MAPPED: @@ -725,7 +718,7 @@ void __mod_memcg_lruvec_state(struct lruvec *lruvec, enum node_stat_item idx, WARN_ON_ONCE(!in_task()); break; default: - WARN_ON_ONCE(!irqs_disabled()); + VM_WARN_ON_IRQS_ENABLED(); } } |