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| author | Daniel Wagner <daniel.wagner@bmw-carit.de> | 2012-07-10 10:49:18 +0200 |
|---|---|---|
| committer | Tejun Heo <tj@kernel.org> | 2012-07-17 11:10:52 -0700 |
| commit | 9a8054aa5d7a98106f72d9ab76e26ebd42320ee0 (patch) | |
| tree | 5d6cd892ac6a6b486b41aa7a5cf65f24a06f70fe /Documentation/cgroups | |
| parent | ce27e317ba22b359bde02216afab934dac3af095 (diff) | |
| download | kernel-common-9a8054aa5d7a98106f72d9ab76e26ebd42320ee0.tar.gz kernel-common-9a8054aa5d7a98106f72d9ab76e26ebd42320ee0.tar.bz2 kernel-common-9a8054aa5d7a98106f72d9ab76e26ebd42320ee0.zip | |
cgroup: Update remount documentation
Remounting support will be removed in the future (see
feature-removal-schedule.txt). Discourage users from using it.
Signed-off-by: Daniel Wagner <daniel.wagner@bmw-carit.de>
Signed-off-by: Tejun Heo <tj@kernel.org>
Cc: Rob Landley <rob@landley.net>
Cc: Paul Menage <paul@paulmenage.org>
Cc: Li Zefan <lizefan@huawei.com>
Cc: Frederic Weisbecker <fweisbec@gmail.com>
Cc: KAMEZAWA Hiroyuki <kamezawa.hiroyu@jp.fujitsu.com>
Diffstat (limited to 'Documentation/cgroups')
| -rw-r--r-- | Documentation/cgroups/cgroups.txt | 15 |
1 files changed, 6 insertions, 9 deletions
diff --git a/Documentation/cgroups/cgroups.txt b/Documentation/cgroups/cgroups.txt index 97a0d1a6a5ae..4a0b64c605fc 100644 --- a/Documentation/cgroups/cgroups.txt +++ b/Documentation/cgroups/cgroups.txt @@ -370,15 +370,12 @@ To mount a cgroup hierarchy with just the cpuset and memory subsystems, type: # mount -t cgroup -o cpuset,memory hier1 /sys/fs/cgroup/rg1 -To change the set of subsystems bound to a mounted hierarchy, just -remount with different options: -# mount -o remount,cpuset,blkio hier1 /sys/fs/cgroup/rg1 - -Now memory is removed from the hierarchy and blkio is added. - -Note this will add blkio to the hierarchy but won't remove memory or -cpuset, because the new options are appended to the old ones: -# mount -o remount,blkio /sys/fs/cgroup/rg1 +While remounting cgroups is currently supported, it is not recommend +to use it. Remounting allows changing bound subsystems and +release_agent. Rebinding is hardly useful as it only works when the +hierarchy is empty and release_agent itself should be replaced with +conventional fsnotify. The support for remounting will be removed in +the future. To Specify a hierarchy's release_agent: # mount -t cgroup -o cpuset,release_agent="/sbin/cpuset_release_agent" \ |