Messages in this thread | | | Subject | Re: [RFC][-mm] Add an owner to the mm_struct (v3) | Date | Tue, 1 Apr 2008 15:03:30 +0900 (JST) | From | (YAMAMOTO Takashi) |
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> This patch removes the mem_cgroup member from mm_struct and instead adds > an owner. This approach was suggested by Paul Menage. The advantage of > this approach is that, once the mm->owner is known, using the subsystem > id, the cgroup can be determined. It also allows several control groups > that are virtually grouped by mm_struct, to exist independent of the memory > controller i.e., without adding mem_cgroup's for each controller, > to mm_struct. > > A new config option CONFIG_MM_OWNER is added and the memory resource > controller selects this config option. > > NOTE: This patch was developed on top of 2.6.25-rc5-mm1 and is applied on top > of the memory-controller-move-to-own-slab patch (which is already present > in the Andrew's patchset). > > I am indebted to Paul Menage for the several reviews of this patchset > and helping me make it lighter and simpler. > > This patch was tested on a powerpc box, by running a task under the memory > resource controller and moving it across groups at a constant interval. > > Signed-off-by: Balbir Singh <balbir@linux.vnet.ibm.com> > ---
changing mm->owner without notifying controllers makes it difficult to use. can you provide a notification mechanism?
YAMAMOTO Takashi
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