On Wed, 23 Nov 2011 16:42:30 +0100 Johannes Weiner <hannes@xxxxxxxxxxx> wrote: > From: Johannes Weiner <jweiner@xxxxxxxxxx> > > This bit is protected by zone->lru_lock, there is no need for locked > operations when setting and clearing it. > > Signed-off-by: Johannes Weiner <jweiner@xxxxxxxxxx> This atomic ops are for avoiding race with other ops as lock_page_cgroup(). Or other Set/ClearPageCgroup.... Do I misunderstand atomic ops v.s. non-atomic ops race ? Thanks, -Kame -- To unsubscribe, send a message with 'unsubscribe linux-mm' in the body to majordomo@xxxxxxxxx. 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>