diff options
Diffstat (limited to 'mm/memcontrol.c')
| -rw-r--r-- | mm/memcontrol.c | 24 |
1 files changed, 9 insertions, 15 deletions
diff --git a/mm/memcontrol.c b/mm/memcontrol.c index 61e05fc281fb..2d8549ae1b30 100644 --- a/mm/memcontrol.c +++ b/mm/memcontrol.c @@ -590,25 +590,18 @@ 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) @@ -783,7 +776,7 @@ 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: @@ -793,7 +786,7 @@ 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(); } } @@ -1479,6 +1472,7 @@ static const struct memory_stat memory_stats[] = { { "kernel", MEMCG_KMEM }, { "kernel_stack", NR_KERNEL_STACK_KB }, { "pagetables", NR_PAGETABLE }, + { "sec_pagetables", NR_SECONDARY_PAGETABLE }, { "percpu", MEMCG_PERCPU_B }, { "sock", MEMCG_SOCK }, { "vmalloc", MEMCG_VMALLOC }, @@ -5176,8 +5170,8 @@ struct mem_cgroup *mem_cgroup_get_from_ino(unsigned long ino) struct mem_cgroup *memcg; cgrp = cgroup_get_from_id(ino); - if (!cgrp) - return ERR_PTR(-ENOENT); + if (IS_ERR(cgrp)) + return ERR_CAST(cgrp); css = cgroup_get_e_css(cgrp, &memory_cgrp_subsys); if (css) |