Gitweb:     
http://git.kernel.org/git/?p=linux/kernel/git/torvalds/linux-2.6.git;a=commit;h=3564c7c45156b358efe921ab2e4e516dad92c94c
Commit:     3564c7c45156b358efe921ab2e4e516dad92c94c
Parent:     82369553d6d3bc67c54129a02e0bc0b5b88f3045
Author:     KAMEZAWA Hiroyuki <[EMAIL PROTECTED]>
AuthorDate: Thu Feb 7 00:14:23 2008 -0800
Committer:  Linus Torvalds <[EMAIL PROTECTED]>
CommitDate: Thu Feb 7 08:42:20 2008 -0800

    memory cgroup enhancements: remember "a page is on active list of cgroup or 
not"
    
    Remember page_cgroup is on active_list or not in page_cgroup->flags.
    
    Signed-off-by: KAMEZAWA Hiroyuki <[EMAIL PROTECTED]>
    Signed-off-by: YAMAMOTO Takashi <[EMAIL PROTECTED]>
    Cc: Balbir Singh <[EMAIL PROTECTED]>
    Cc: Pavel Emelianov <[EMAIL PROTECTED]>
    Cc: Paul Menage <[EMAIL PROTECTED]>
    Cc: Peter Zijlstra <[EMAIL PROTECTED]>
    Cc: "Eric W. Biederman" <[EMAIL PROTECTED]>
    Cc: Nick Piggin <[EMAIL PROTECTED]>
    Cc: Kirill Korotaev <[EMAIL PROTECTED]>
    Cc: Herbert Poetzl <[EMAIL PROTECTED]>
    Cc: David Rientjes <[EMAIL PROTECTED]>
    Cc: Vaidyanathan Srinivasan <[EMAIL PROTECTED]>
    Signed-off-by: Andrew Morton <[EMAIL PROTECTED]>
    Signed-off-by: Linus Torvalds <[EMAIL PROTECTED]>
---
 mm/memcontrol.c |   10 +++++++---
 1 files changed, 7 insertions(+), 3 deletions(-)

diff --git a/mm/memcontrol.c b/mm/memcontrol.c
index 11b23f2..31c4f0c 100644
--- a/mm/memcontrol.c
+++ b/mm/memcontrol.c
@@ -86,6 +86,7 @@ struct page_cgroup {
        int      flags;
 };
 #define PAGE_CGROUP_FLAG_CACHE (0x1)   /* charged as cache */
+#define PAGE_CGROUP_FLAG_ACTIVE (0x2)  /* page is active in this cgroup */
 
 enum {
        MEM_CGROUP_TYPE_UNSPEC = 0,
@@ -213,10 +214,13 @@ clear_page_cgroup(struct page *page, struct page_cgroup 
*pc)
 
 static void __mem_cgroup_move_lists(struct page_cgroup *pc, bool active)
 {
-       if (active)
+       if (active) {
+               pc->flags |= PAGE_CGROUP_FLAG_ACTIVE;
                list_move(&pc->lru, &pc->mem_cgroup->active_list);
-       else
+       } else {
+               pc->flags &= ~PAGE_CGROUP_FLAG_ACTIVE;
                list_move(&pc->lru, &pc->mem_cgroup->inactive_list);
+       }
 }
 
 int task_in_mem_cgroup(struct task_struct *task, const struct mem_cgroup *mem)
@@ -403,7 +407,7 @@ retry:
        atomic_set(&pc->ref_cnt, 1);
        pc->mem_cgroup = mem;
        pc->page = page;
-       pc->flags = 0;
+       pc->flags = PAGE_CGROUP_FLAG_ACTIVE;
        if (ctype == MEM_CGROUP_CHARGE_TYPE_CACHE)
                pc->flags |= PAGE_CGROUP_FLAG_CACHE;
 
-
To unsubscribe from this list: send the line "unsubscribe git-commits-head" in
the body of a message to [EMAIL PROTECTED]
More majordomo info at  http://vger.kernel.org/majordomo-info.html

Reply via email to