Thread (9 messages) 9 messages, 5 authors, 2011-03-19

Re: [PATCH] ksm: add vm_stat and meminfo entry to reflect pte mapping to ksm pages

From: xianai@nju.edu.cn <hidden>
Date: 2011-03-18 06:54:43
Also in: kernel-janitors, lkml

On Tuesday 01 March 2011, at 10:21:48, <Dave Hansen [off-list ref]> wrote
On Sat, 2011-02-26 at 22:56 +0800, Nai Xia wrote
quoted
@@ -904,6 +905,10 @@ static int try_to_merge_one_page(struct vm_area_struct 
*vma,
                         */
                        set_page_stable_node(page, NULL);
                        mark_page_accessed(page);
+                       if (mapcount)
+                               add_zone_page_state(page_zone(page),
+                                                   NR_KSM_PAGES_SHARING,
+                                                   mapcount);
                        err = 0;
                } else if (pages_identical(page, kpage))
                        err = replace_page(vma, page, kpage, orig_pte); 
If you're going to store this per-zone, does it make sense to have it
show up in /proc/zoneinfo?  meminfo's also getting pretty porky these
days, so I almost wonder if it should stay in zoneinfo only.
Yes, thanks for pointing out, I will fix it soon. And sorry for the late 
response,there was a bug in my mail client which prevents this mail from being 
filtered out.

Nai
-- Dave
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