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authorMatthew Wilcox (Oracle) <willy@infradead.org>2022-02-13 16:40:24 -0500
committerMatthew Wilcox (Oracle) <willy@infradead.org>2022-03-21 12:59:02 -0400
commit261b6840ed10419ac2f554e515592d59dd5c82cf (patch)
tree4613688e69179573f8f0174340de334ecd58aec0 /mm/swap.c
parentb4545f46533b7e69cb20e05c9fe987be76e1a3da (diff)
mm: Turn deactivate_file_page() into deactivate_file_folio()
This function has one caller which already has a reference to the page, so we don't need to use get_page_unless_zero(). Also move the prototype to mm/internal.h. Signed-off-by: Matthew Wilcox (Oracle) <willy@infradead.org> Reviewed-by: Christoph Hellwig <hch@lst.de> Reviewed-by: Miaohe Lin <linmiaohe@huawei.com>
Diffstat (limited to 'mm/swap.c')
-rw-r--r--mm/swap.c35
1 files changed, 18 insertions, 17 deletions
diff --git a/mm/swap.c b/mm/swap.c
index fc3b7989f5b2..65ec5cbab78b 100644
--- a/mm/swap.c
+++ b/mm/swap.c
@@ -630,32 +630,33 @@ void lru_add_drain_cpu(int cpu)
}
/**
- * deactivate_file_page - forcefully deactivate a file page
- * @page: page to deactivate
+ * deactivate_file_folio() - Forcefully deactivate a file folio.
+ * @folio: Folio to deactivate.
*
- * This function hints the VM that @page is a good reclaim candidate,
- * for example if its invalidation fails due to the page being dirty
+ * This function hints to the VM that @folio is a good reclaim candidate,
+ * for example if its invalidation fails due to the folio being dirty
* or under writeback.
+ *
+ * Context: Caller holds a reference on the page.
*/
-void deactivate_file_page(struct page *page)
+void deactivate_file_folio(struct folio *folio)
{
+ struct pagevec *pvec;
+
/*
- * In a workload with many unevictable page such as mprotect,
- * unevictable page deactivation for accelerating reclaim is pointless.
+ * In a workload with many unevictable pages such as mprotect,
+ * unevictable folio deactivation for accelerating reclaim is pointless.
*/
- if (PageUnevictable(page))
+ if (folio_test_unevictable(folio))
return;
- if (likely(get_page_unless_zero(page))) {
- struct pagevec *pvec;
-
- local_lock(&lru_pvecs.lock);
- pvec = this_cpu_ptr(&lru_pvecs.lru_deactivate_file);
+ folio_get(folio);
+ local_lock(&lru_pvecs.lock);
+ pvec = this_cpu_ptr(&lru_pvecs.lru_deactivate_file);
- if (pagevec_add_and_need_flush(pvec, page))
- pagevec_lru_move_fn(pvec, lru_deactivate_file_fn);
- local_unlock(&lru_pvecs.lock);
- }
+ if (pagevec_add_and_need_flush(pvec, &folio->page))
+ pagevec_lru_move_fn(pvec, lru_deactivate_file_fn);
+ local_unlock(&lru_pvecs.lock);
}
/*