diff options
| -rw-r--r-- | include/linux/huge_mm.h | 70 | ||||
| -rw-r--r-- | mm/memory.c | 2 | ||||
| -rw-r--r-- | mm/shmem.c | 6 |
3 files changed, 35 insertions, 43 deletions
diff --git a/include/linux/huge_mm.h b/include/linux/huge_mm.h index 6370026689e0..4c32058cacfe 100644 --- a/include/linux/huge_mm.h +++ b/include/linux/huge_mm.h @@ -114,6 +114,41 @@ extern struct kobj_attribute thpsize_shmem_enabled_attr; #define HPAGE_PUD_MASK (~(HPAGE_PUD_SIZE - 1)) #define HPAGE_PUD_SIZE ((1UL) << HPAGE_PUD_SHIFT) +enum mthp_stat_item { + MTHP_STAT_ANON_FAULT_ALLOC, + MTHP_STAT_ANON_FAULT_FALLBACK, + MTHP_STAT_ANON_FAULT_FALLBACK_CHARGE, + MTHP_STAT_SWPOUT, + MTHP_STAT_SWPOUT_FALLBACK, + MTHP_STAT_SHMEM_ALLOC, + MTHP_STAT_SHMEM_FALLBACK, + MTHP_STAT_SHMEM_FALLBACK_CHARGE, + MTHP_STAT_SPLIT, + MTHP_STAT_SPLIT_FAILED, + MTHP_STAT_SPLIT_DEFERRED, + __MTHP_STAT_COUNT +}; + +#if defined(CONFIG_TRANSPARENT_HUGEPAGE) && defined(CONFIG_SYSFS) +struct mthp_stat { + unsigned long stats[ilog2(MAX_PTRS_PER_PTE) + 1][__MTHP_STAT_COUNT]; +}; + +DECLARE_PER_CPU(struct mthp_stat, mthp_stats); + +static inline void count_mthp_stat(int order, enum mthp_stat_item item) +{ + if (order <= 0 || order > PMD_ORDER) + return; + + this_cpu_inc(mthp_stats.stats[order][item]); +} +#else +static inline void count_mthp_stat(int order, enum mthp_stat_item item) +{ +} +#endif + #ifdef CONFIG_TRANSPARENT_HUGEPAGE extern unsigned long transparent_hugepage_flags; @@ -269,41 +304,6 @@ struct thpsize { #define to_thpsize(kobj) container_of(kobj, struct thpsize, kobj) -enum mthp_stat_item { - MTHP_STAT_ANON_FAULT_ALLOC, - MTHP_STAT_ANON_FAULT_FALLBACK, - MTHP_STAT_ANON_FAULT_FALLBACK_CHARGE, - MTHP_STAT_SWPOUT, - MTHP_STAT_SWPOUT_FALLBACK, - MTHP_STAT_SHMEM_ALLOC, - MTHP_STAT_SHMEM_FALLBACK, - MTHP_STAT_SHMEM_FALLBACK_CHARGE, - MTHP_STAT_SPLIT, - MTHP_STAT_SPLIT_FAILED, - MTHP_STAT_SPLIT_DEFERRED, - __MTHP_STAT_COUNT -}; - -struct mthp_stat { - unsigned long stats[ilog2(MAX_PTRS_PER_PTE) + 1][__MTHP_STAT_COUNT]; -}; - -#ifdef CONFIG_SYSFS -DECLARE_PER_CPU(struct mthp_stat, mthp_stats); - -static inline void count_mthp_stat(int order, enum mthp_stat_item item) -{ - if (order <= 0 || order > PMD_ORDER) - return; - - this_cpu_inc(mthp_stats.stats[order][item]); -} -#else -static inline void count_mthp_stat(int order, enum mthp_stat_item item) -{ -} -#endif - #define transparent_hugepage_use_zero_page() \ (transparent_hugepage_flags & \ (1<<TRANSPARENT_HUGEPAGE_USE_ZERO_PAGE_FLAG)) diff --git a/mm/memory.c b/mm/memory.c index c31ea300cdf6..93c0c25433d0 100644 --- a/mm/memory.c +++ b/mm/memory.c @@ -4595,9 +4595,7 @@ static vm_fault_t do_anonymous_page(struct vm_fault *vmf) folio_ref_add(folio, nr_pages - 1); add_mm_counter(vma->vm_mm, MM_ANONPAGES, nr_pages); -#ifdef CONFIG_TRANSPARENT_HUGEPAGE count_mthp_stat(folio_order(folio), MTHP_STAT_ANON_FAULT_ALLOC); -#endif folio_add_new_anon_rmap(folio, vma, addr, RMAP_EXCLUSIVE); folio_add_lru_vma(folio, vma); setpte: diff --git a/mm/shmem.c b/mm/shmem.c index 866d46d0c43d..800cec9dc534 100644 --- a/mm/shmem.c +++ b/mm/shmem.c @@ -1808,9 +1808,7 @@ static struct folio *shmem_alloc_and_add_folio(struct vm_fault *vmf, if (pages == HPAGE_PMD_NR) count_vm_event(THP_FILE_FALLBACK); -#ifdef CONFIG_TRANSPARENT_HUGEPAGE count_mthp_stat(order, MTHP_STAT_SHMEM_FALLBACK); -#endif order = next_order(&suitable_orders, order); } } else { @@ -1835,10 +1833,8 @@ allocated: count_vm_event(THP_FILE_FALLBACK); count_vm_event(THP_FILE_FALLBACK_CHARGE); } -#ifdef CONFIG_TRANSPARENT_HUGEPAGE count_mthp_stat(folio_order(folio), MTHP_STAT_SHMEM_FALLBACK); count_mthp_stat(folio_order(folio), MTHP_STAT_SHMEM_FALLBACK_CHARGE); -#endif } goto unlock; } @@ -2332,9 +2328,7 @@ repeat: if (!IS_ERR(folio)) { if (folio_test_pmd_mappable(folio)) count_vm_event(THP_FILE_ALLOC); -#ifdef CONFIG_TRANSPARENT_HUGEPAGE count_mthp_stat(folio_order(folio), MTHP_STAT_SHMEM_ALLOC); -#endif goto alloced; } if (PTR_ERR(folio) == -EEXIST) |