2012-06-14 13:23:07

by Wanpeng Li

Subject: [PATCH] mm: complement page reclaim comment

From: Wanpeng Li <[email protected]>

Signed-off-by: Wanpeng Li <[email protected]>
---
mm/vmscan.c | 1 +
1 file changed, 1 insertion(+)

diff --git a/mm/vmscan.c b/mm/vmscan.c
index ed823df..603c96f 100644
--- a/mm/vmscan.c
+++ b/mm/vmscan.c
@@ -3203,6 +3203,7 @@ int zone_reclaim(struct zone *zone, gfp_t gfp_mask, unsigned int order)
* Reasons page might not be evictable:
* (1) page's mapping marked unevictable
* (2) page is part of an mlocked VMA
+ * (3) page mapped into SHM_LOCK'd shared memory regions
*
*/
int page_evictable(struct page *page, struct vm_area_struct *vma)
--
1.7.9.5

2012-06-14 13:44:18

by KOSAKI Motohiro

Subject: Re: [PATCH] mm: complement page reclaim comment

(6/14/12 9:22 AM), Wanpeng Li wrote:
> From: Wanpeng Li<[email protected]>
>
> Signed-off-by: Wanpeng Li<[email protected]>
> ---
> mm/vmscan.c | 1 +
> 1 file changed, 1 insertion(+)
>
> diff --git a/mm/vmscan.c b/mm/vmscan.c
> index ed823df..603c96f 100644
> --- a/mm/vmscan.c
> +++ b/mm/vmscan.c
> @@ -3203,6 +3203,7 @@ int zone_reclaim(struct zone *zone, gfp_t gfp_mask, unsigned int order)
> * Reasons page might not be evictable:
> * (1) page's mapping marked unevictable
> * (2) page is part of an mlocked VMA
> + * (3) page mapped into SHM_LOCK'd shared memory regions

This is one of "marked unevictable".


> *
> */
> int page_evictable(struct page *page, struct vm_area_struct *vma)