mm: add free_hot_cold_page_list() helper

[linux-block.git] / mm / page_alloc.c

diff --git a/mm/page_alloc.c b/mm/page_alloc.c
index 7990ca154d1b602408993f18c433831dab168d06..cd0c95c6cc9e13763e5a0b2c64487e1ceab333bb 100644 (file)
--- a/mm/page_alloc.c
+++ b/mm/page_alloc.c
@@ -1188,6 +1188,19 @@ out:
        local_irq_restore(flags);
 }
 
+/*
+ * Free a list of 0-order pages
+ */
+void free_hot_cold_page_list(struct list_head *list, int cold)
+{
+       struct page *page, *next;
+
+       list_for_each_entry_safe(page, next, list, lru) {
+               trace_mm_pagevec_free(page, cold);
+               free_hot_cold_page(page, cold);
+       }
+}
+
 /*
  * split_page takes a non-compound higher-order page, and splits it into
  * n (1<<order) sub-pages: page[0..n]