On Mon, 5 Dec 2011 19:34:57 -0200 Glauber Costa <glommer@xxxxxxxxxxxxx> wrote: > The goal of this work is to move the memory pressure tcp > controls to a cgroup, instead of just relying on global > conditions. > > To avoid excessive overhead in the network fast paths, > the code that accounts allocated memory to a cgroup is > hidden inside a static_branch(). This branch is patched out > until the first non-root cgroup is created. So when nobody > is using cgroups, even if it is mounted, no significant performance > penalty should be seen. > > This patch handles the generic part of the code, and has nothing > tcp-specific. > > Signed-off-by: Glauber Costa <glommer@xxxxxxxxxxxxx> > CC: Kirill A. Shutemov <kirill@xxxxxxxxxxxxx> > CC: KAMEZAWA Hiroyuki <kamezawa.hiroyu@xxxxxxxxxxxxx> > CC: David S. Miller <davem@xxxxxxxxxxxxx> > CC: Eric W. Biederman <ebiederm@xxxxxxxxxxxx> > CC: Eric Dumazet <eric.dumazet@xxxxxxxxx> Reviewed-by: KAMEZAWA Hiroyuki <kamezawa.hiroyu@xxxxxxxxxxxxxx> -- 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>