diff options
Diffstat (limited to 'mm')
| -rw-r--r-- | mm/vmscan.c | 6 | ||||
| -rw-r--r-- | mm/vmstat.c | 5 |
2 files changed, 11 insertions, 0 deletions
diff --git a/mm/vmscan.c b/mm/vmscan.c index 154b9b608da..2804d23e2da 100644 --- a/mm/vmscan.c +++ b/mm/vmscan.c @@ -484,6 +484,7 @@ void putback_lru_page(struct page *page) { int lru; int active = !!TestClearPageActive(page); + int was_unevictable = PageUnevictable(page); VM_BUG_ON(PageLRU(page)); @@ -525,6 +526,11 @@ redo: */ } + if (was_unevictable && lru != LRU_UNEVICTABLE) + count_vm_event(UNEVICTABLE_PGRESCUED); + else if (!was_unevictable && lru == LRU_UNEVICTABLE) + count_vm_event(UNEVICTABLE_PGCULLED); + put_page(page); /* drop ref from isolate */ } diff --git a/mm/vmstat.c b/mm/vmstat.c index 4380b0dba6d..6cb08cdd4f0 100644 --- a/mm/vmstat.c +++ b/mm/vmstat.c @@ -677,6 +677,11 @@ static const char * const vmstat_text[] = { "htlb_buddy_alloc_success", "htlb_buddy_alloc_fail", #endif +#ifdef CONFIG_UNEVICTABLE_LRU + "unevictable_pgs_culled", + "unevictable_pgs_scanned", + "unevictable_pgs_rescued", +#endif #endif }; |