On 09/27/2012 05:34 PM, Mel Gorman wrote: > On Tue, Sep 18, 2012 at 06:04:02PM +0400, Glauber Costa wrote: >> This flag is used to indicate to the callees that this allocation is a >> kernel allocation in process context, and should be accounted to >> current's memcg. It takes numerical place of the of the recently removed >> __GFP_NO_KSWAPD. >> >> Signed-off-by: Glauber Costa <glom...@parallels.com> >> CC: Christoph Lameter <c...@linux.com> >> CC: Pekka Enberg <penb...@cs.helsinki.fi> >> CC: Michal Hocko <mho...@suse.cz> >> CC: Johannes Weiner <han...@cmpxchg.org> >> CC: Suleiman Souhlal <sulei...@google.com> >> CC: Rik van Riel <r...@redhat.com> >> CC: Mel Gorman <m...@csn.ul.ie> >> Acked-by: Kamezawa Hiroyuki <kamezawa.hir...@jp.fujitsu.com> > > I agree with Christophs recommendation that this flag always exist instead > of being 0 in the !MEMCG_KMEM case. If __GFP_KMEMCG ever is used in another > part of the VM (which would be unexpected but still) then the behaviour > might differ too much between MEMCG_KMEM and !MEMCG_KMEM cases. As unlikely > as the case is, it's not impossible. > > For tracing __GFP_KMEMCG should have an entry in > include/trace/events/gfpflags.h > > Get rid of the CONFIG_MEMCG_KMEM check and update > include/trace/events/gfpflags.h and then feel free to stick my Acked-by > on it. >
Thanks, that is certainly doable. _______________________________________________ Devel mailing list Devel@openvz.org https://openvz.org/mailman/listinfo/devel
