Gao feng <gaofeng@xxxxxxxxxxxxxx> writes: > On 2013/01/16 22:35, Serge Hallyn wrote: >> Quoting Gao feng (gaofeng@xxxxxxxxxxxxxx): >>> From: gaofeng <gaofeng@xxxxxxxxxxxxxx> >>> >>> Since the memory used by tmpfs is under control of >>> memory cgroup. and the files under the tmpfs will not >>> be leak to other tmpfs. >>> >>> So mounting tmpfs in user namespace does no harm to the >>> host,we can allow tmpfs to be mounted in user namespace. >>> >>> Signed-off-by: gaofeng <gaofeng@xxxxxxxxxxxxxx> >> >> I've got the same patch in my kernel at >> http://kernel.ubuntu.com/git?p=serge/quantal-userns.git;a=summary >> >> except note that there are two definitions of shmem_fs_type. >> > > Yes, I miss the other one,Do you have plan to push this patch > into linus's linux-2.6 or eric's userns tree? Linus's linux-2.6.git is a symlink to Linus's linux.git Talking about 2.6 in this day and age is a bit confusing. > I'm trying to add userns support for libvirt,so I need tmpfs to > be allowed to mount in userns. At a practical level I am happy to apply a complete patch in my tree once if it gets posted to fs-devel and probably lkml for review, and I have had a chance to read the memory control group and verify with my own little eyes that the memory control group can in fact limit tmpfs. Eric _______________________________________________ Containers mailing list Containers@xxxxxxxxxxxxxxxxxxxxxxxxxx https://lists.linuxfoundation.org/mailman/listinfo/containers
