diff options
| -rw-r--r-- | include/linux/balloon_compaction.h | 7 | ||||
| -rw-r--r-- | include/linux/vm_event_item.h | 7 | ||||
| -rw-r--r-- | mm/balloon_compaction.c | 2 | ||||
| -rw-r--r-- | mm/migrate.c | 1 | ||||
| -rw-r--r-- | mm/vmstat.c | 9 |
5 files changed, 24 insertions, 2 deletions
diff --git a/include/linux/balloon_compaction.h b/include/linux/balloon_compaction.h index f7f1d7169b11..6fd5cc80f62f 100644 --- a/include/linux/balloon_compaction.h +++ b/include/linux/balloon_compaction.h @@ -213,8 +213,15 @@ static inline bool balloon_compaction_check(void) return true; } +static inline void balloon_event_count(enum vm_event_item item) +{ + count_vm_event(item); +} #else /* !CONFIG_BALLOON_COMPACTION */ +/* A macro, to avoid generating references to the undefined COMPACTBALLOON* */ +#define balloon_event_count(item) do { } while (0) + static inline void *balloon_mapping_alloc(void *balloon_device, const struct address_space_operations *a_ops) { diff --git a/include/linux/vm_event_item.h b/include/linux/vm_event_item.h index bd6cf61142be..d4b7a184f08c 100644 --- a/include/linux/vm_event_item.h +++ b/include/linux/vm_event_item.h @@ -50,7 +50,12 @@ enum vm_event_item { PGPGIN, PGPGOUT, PSWPIN, PSWPOUT, COMPACTMIGRATE_SCANNED, COMPACTFREE_SCANNED, COMPACTISOLATED, COMPACTSTALL, COMPACTFAIL, COMPACTSUCCESS, -#endif +#ifdef CONFIG_BALLOON_COMPACTION + COMPACTBALLOONISOLATED, /* isolated from balloon pagelist */ + COMPACTBALLOONMIGRATED, /* balloon page sucessfully migrated */ + COMPACTBALLOONRETURNED, /* putback to pagelist, not-migrated */ +#endif /* CONFIG_BALLOON_COMPACTION */ +#endif /* CONFIG_COMPACTION */ #ifdef CONFIG_HUGETLB_PAGE HTLB_BUDDY_PGALLOC, HTLB_BUDDY_PGALLOC_FAIL, #endif diff --git a/mm/balloon_compaction.c b/mm/balloon_compaction.c index 07dbc8ec46cf..2c8ce496804f 100644 --- a/mm/balloon_compaction.c +++ b/mm/balloon_compaction.c @@ -242,6 +242,7 @@ bool balloon_page_isolate(struct page *page) if (__is_movable_balloon_page(page) && page_count(page) == 2) { __isolate_balloon_page(page); + balloon_event_count(COMPACTBALLOONISOLATED); unlock_page(page); return true; } @@ -265,6 +266,7 @@ void balloon_page_putback(struct page *page) __putback_balloon_page(page); /* drop the extra ref count taken for page isolation */ put_page(page); + balloon_event_count(COMPACTBALLOONRETURNED); } else { WARN_ON(1); dump_page(page); diff --git a/mm/migrate.c b/mm/migrate.c index 6f0c24438bba..983ff0152e22 100644 --- a/mm/migrate.c +++ b/mm/migrate.c @@ -889,6 +889,7 @@ static int unmap_and_move(new_page_t get_new_page, unsigned long private, dec_zone_page_state(page, NR_ISOLATED_ANON + page_is_file_cache(page)); balloon_page_free(page); + balloon_event_count(COMPACTBALLOONMIGRATED); return MIGRATEPAGE_SUCCESS; } out: diff --git a/mm/vmstat.c b/mm/vmstat.c index f42745e65780..7a35116462a7 100644 --- a/mm/vmstat.c +++ b/mm/vmstat.c @@ -794,7 +794,14 @@ const char * const vmstat_text[] = { "compact_stall", "compact_fail", "compact_success", -#endif + +#ifdef CONFIG_BALLOON_COMPACTION + "compact_balloon_isolated", + "compact_balloon_migrated", + "compact_balloon_returned", +#endif /* CONFIG_BALLOON_COMPACTION */ + +#endif /* CONFIG_COMPACTION */ #ifdef CONFIG_HUGETLB_PAGE "htlb_buddy_alloc_success", |