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-rw-r--r--mm/vmscan.c8
1 files changed, 3 insertions, 5 deletions
diff --git a/mm/vmscan.c b/mm/vmscan.c
index c5b2a68f4ef6..3c89eac629f3 100644
--- a/mm/vmscan.c
+++ b/mm/vmscan.c
@@ -2054,7 +2054,6 @@ static void shrink_active_list(unsigned long nr_to_scan,
if (page_referenced(page, 0, sc->target_mem_cgroup,
&vm_flags)) {
- nr_rotated += hpage_nr_pages(page);
/*
* Identify referenced, file-backed active pages and
* give them one more trip around the active list. So
@@ -2065,6 +2064,7 @@ static void shrink_active_list(unsigned long nr_to_scan,
* so we ignore them here.
*/
if ((vm_flags & VM_EXEC) && page_is_file_lru(page)) {
+ nr_rotated += hpage_nr_pages(page);
list_add(&page->lru, &l_active);
continue;
}
@@ -2080,10 +2080,8 @@ static void shrink_active_list(unsigned long nr_to_scan,
*/
spin_lock_irq(&pgdat->lru_lock);
/*
- * Count referenced pages from currently used mappings as rotated,
- * even though only some of them are actually re-activated. This
- * helps balance scan pressure between file and anonymous pages in
- * get_scan_count.
+ * Rotating pages costs CPU without actually
+ * progressing toward the reclaim goal.
*/
lru_note_cost(lruvec, file, nr_rotated);