On Thu, Jun 02, 2011 at 10:16:59PM +0900, Hiroyuki Kamezawa wrote: > 2011/6/1 Johannes Weiner <hannes@xxxxxxxxxxx>: > > All lru list walkers have been converted to operate on per-memcg > > lists, the global per-zone lists are no longer required. > > > > This patch makes the per-memcg lists exclusive and removes the global > > lists from memcg-enabled kernels. > > > > The per-memcg lists now string up page descriptors directly, which > > unifies/simplifies the list isolation code of page reclaim as well as > > it saves a full double-linked list head for each page in the system. > > > > At the core of this change is the introduction of the lruvec > > structure, an array of all lru list heads. It exists for each zone > > globally, and for each zone per memcg. All lru list operations are > > now done in generic code against lruvecs, with the memcg lru list > > primitives only doing accounting and returning the proper lruvec for > > the currently scanned memcg on isolation, or for the respective page > > on putback. > > > > Signed-off-by: Johannes Weiner <hannes@xxxxxxxxxxx> > > > could you divide this into > - introduce lruvec > - don't record section? information into pc->flags because we see > "page" on memcg LRU > and there is no requirement to get page from "pc". > - remove pc->lru completely Yes, that makes sense. It shall be fixed in the next version. -- To unsubscribe, send a message with 'unsubscribe linux-mm' in the body to majordomo@xxxxxxxxxx For more info on Linux MM, see: http://www.linux-mm.org/ . Fight unfair telecom internet charges in Canada: sign http://stopthemeter.ca/ Don't email: <a href=mailto:"dont@xxxxxxxxx";> email@xxxxxxxxx </a>