[PATCH 1/3] mm/page_alloc: fix a terrible misleading comment

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The comment says that the per-cpu batchsize and zone watermarks
are determined by present_pages which is definitely wrong, they
are both calculated from managed_pages. Fix it.

Signed-off-by: Yaowei Bai <bywxiaobai@xxxxxxx>
---
 mm/page_alloc.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/mm/page_alloc.c b/mm/page_alloc.c
index 5b5240b..c22b133 100644
--- a/mm/page_alloc.c
+++ b/mm/page_alloc.c
@@ -6003,7 +6003,7 @@ void __init mem_init_print_info(const char *str)
  * set_dma_reserve - set the specified number of pages reserved in the first zone
  * @new_dma_reserve: The number of pages to mark reserved
  *
- * The per-cpu batchsize and zone watermarks are determined by present_pages.
+ * The per-cpu batchsize and zone watermarks are determined by managed_pages.
  * In the DMA zone, a significant percentage may be consumed by kernel image
  * and other unfreeable allocations which can skew the watermarks badly. This
  * function may optionally be used to account for unfreeable pages in the
-- 
1.9.1


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