diff options
| author | Rahat Mahmood <rahat@google.com> | 2021-04-02 21:08:53 -0700 |
|---|---|---|
| committer | gVisor bot <gvisor-bot@google.com> | 2021-04-02 21:10:44 -0700 |
| commit | 932c8abd0f739bec295ff62cf8fce3dcb7e2d866 (patch) | |
| tree | 5669f3240478e7d96a9d9375d241e65668cb5805 /runsc/boot/vfs.go | |
| parent | a0c1674478ed49b63c75ce1d000c8038b1a632b3 (diff) | |
Implement cgroupfs.
A skeleton implementation of cgroupfs. It supports trivial cpu and
memory controllers with no support for hierarchies.
PiperOrigin-RevId: 366561126
Diffstat (limited to 'runsc/boot/vfs.go')
| -rw-r--r-- | runsc/boot/vfs.go | 20 |
1 files changed, 16 insertions, 4 deletions
diff --git a/runsc/boot/vfs.go b/runsc/boot/vfs.go index 5ef8cc039..9117540d5 100644 --- a/runsc/boot/vfs.go +++ b/runsc/boot/vfs.go @@ -30,6 +30,7 @@ import ( "gvisor.dev/gvisor/pkg/sentry/devices/ttydev" "gvisor.dev/gvisor/pkg/sentry/devices/tundev" "gvisor.dev/gvisor/pkg/sentry/fs/user" + "gvisor.dev/gvisor/pkg/sentry/fsimpl/cgroupfs" "gvisor.dev/gvisor/pkg/sentry/fsimpl/devpts" "gvisor.dev/gvisor/pkg/sentry/fsimpl/devtmpfs" "gvisor.dev/gvisor/pkg/sentry/fsimpl/fuse" @@ -52,6 +53,10 @@ func registerFilesystems(k *kernel.Kernel) error { creds := auth.NewRootCredentials(k.RootUserNamespace()) vfsObj := k.VFS() + vfsObj.MustRegisterFilesystemType(cgroupfs.Name, &cgroupfs.FilesystemType{}, &vfs.RegisterFilesystemTypeOptions{ + AllowUserMount: true, + AllowUserList: true, + }) vfsObj.MustRegisterFilesystemType(devpts.Name, &devpts.FilesystemType{}, &vfs.RegisterFilesystemTypeOptions{ AllowUserList: true, // TODO(b/29356795): Users may mount this once the terminals are in a @@ -62,6 +67,10 @@ func registerFilesystems(k *kernel.Kernel) error { AllowUserMount: true, AllowUserList: true, }) + vfsObj.MustRegisterFilesystemType(fuse.Name, &fuse.FilesystemType{}, &vfs.RegisterFilesystemTypeOptions{ + AllowUserMount: true, + AllowUserList: true, + }) vfsObj.MustRegisterFilesystemType(gofer.Name, &gofer.FilesystemType{}, &vfs.RegisterFilesystemTypeOptions{ AllowUserList: true, }) @@ -81,10 +90,6 @@ func registerFilesystems(k *kernel.Kernel) error { AllowUserMount: true, AllowUserList: true, }) - vfsObj.MustRegisterFilesystemType(fuse.Name, &fuse.FilesystemType{}, &vfs.RegisterFilesystemTypeOptions{ - AllowUserMount: true, - AllowUserList: true, - }) vfsObj.MustRegisterFilesystemType(verity.Name, &verity.FilesystemType{}, &vfs.RegisterFilesystemTypeOptions{ AllowUserList: true, AllowUserMount: false, @@ -514,6 +519,13 @@ func (c *containerMounter) getMountNameAndOptionsVFS2(conf *config.Config, m *mo // If configured, add overlay to all writable mounts. useOverlay = conf.Overlay && !mountFlags(m.Options).ReadOnly + case cgroupfs.Name: + var err error + data, err = parseAndFilterOptions(m.Options, cgroupfs.SupportedMountOptions...) + if err != nil { + return "", nil, false, err + } + default: log.Warningf("ignoring unknown filesystem type %q", m.Type) return "", nil, false, nil |