On Fri, 14 Oct 2011 00:05:58 +0400, Glauber Costa said: > On 10/14/2011 12:00 AM, David Miller wrote: > > Make this evaluate into exactly the same exact code stream we have > > now when the memory cgroup feature is not in use, which will be the > > majority of users. > > What exactly do you mean by "not in use" ? Not compiled in or not > actively being exercised ? If you mean the later, I appreciate tips on > how to achieve it. > > Also, I kind of dispute the affirmation that !cgroup will encompass > the majority of users, since cgroups is being enabled by default by > most vendors. All systemd based systems use it extensively, for instance. Yes, systemd requires a kernel that includes cgroups. However, systemd does *not* require the memory cgroup feature. As a practical matter, if your patch doesn't generate equivalent code for the "have cgroups, but no memory cgroup" situation, it's a non-starter.
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