On Tue, Apr 23, 2013 at 11:22 AM, Glauber Costa <glommer@xxxxxxxxxx> wrote: > From: Glauber Costa <glommer@xxxxxxxxxxxxx> > > During the past weeks, it became clear to us that the shrinker interface > we have right now works very well for some particular types of users, > but not that well for others. The later are usually people interested in > one-shot notifications, that were forced to adapt themselves to the > count+scan behavior of shrinkers. To do so, they had no choice than to > greatly abuse the shrinker interface producing little monsters all over. > > During LSF/MM, one of the proposals that popped out during our session > was to reuse Anton Voronstsov's vmpressure for this. They are designed > for userspace consumption, but also provide a well-stablished, > cgroup-aware entry point for notifications. > > This patch extends that to also support in-kernel users. Events that > should be generated for in-kernel consumption will be marked as such, > and for those, we will call a registered function instead of triggering > an eventfd notification. > > Please note that due to my lack of understanding of each shrinker user, > I will stay away from converting the actual users, you are all welcome > to do so. > > Signed-off-by: Glauber Costa <glommer@xxxxxxxxxx> Looks good to me. Acked-by: Pekka Enberg <penberg@xxxxxxxxxx> -- 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/ . Don't email: <a href=mailto:"dont@xxxxxxxxx";> email@xxxxxxxxx </a>