KAMEZAWA Hiroyuki wrote: > On Fri, 22 Oct 2010 16:12:25 +0800 > Li Zefan <lizf@xxxxxxxxxxxxxx> wrote: > >> Provide a usage example, and update the bind() callback API. >> >> Signed-off-by: Li Zefan <lizf@xxxxxxxxxxxxxx> >> --- >> Documentation/cgroups/cgroups.txt | 26 +++++++++++++++++--------- >> 1 files changed, 17 insertions(+), 9 deletions(-) >> >> diff --git a/Documentation/cgroups/cgroups.txt b/Documentation/cgroups/cgroups.txt >> index 190018b..5b5382a 100644 >> --- a/Documentation/cgroups/cgroups.txt >> +++ b/Documentation/cgroups/cgroups.txt >> @@ -363,17 +363,23 @@ Note this will add ns to the hierarchy but won't remove memory or >> cpuset, because the new options are appended to the old ones: >> # mount -o remount,ns /dev/cgroup >> >> +For some subsystems you can bind them to a mounted hierarchy or >> +remove them from it, even if there're sub-cgroups in it: >> +# mount -t cgroup -o freezer hier1 /dev/cgroup >> +# echo $$ > /dev/cgroup/my_cgroup >> +# mount -o freezer,cpuset hier1 /dev/cgroup >> +(failed) >> +# mount -o freezer,cpuacct hier1 /dev/cgroup >> +# mount -o cpuacct hier1 /dev/cgroup >> + >> +Note cpuacct should be sit in the default hierarchy before remount. >> + > > Can this operation be used with noop cgroup ? > (IOW, perf cgroup can be attached to noop cgroup ?) > Yes, you can. I've tested it. _______________________________________________ Containers mailing list Containers@xxxxxxxxxxxxxxxxxxxxxxxxxx https://lists.linux-foundation.org/mailman/listinfo/containers
