diff options
| author | Dean Deng <deandeng@google.com> | 2020-10-13 01:11:00 -0700 |
|---|---|---|
| committer | gVisor bot <gvisor-bot@google.com> | 2020-10-13 01:13:22 -0700 |
| commit | 577c82f22c6c175240fa52fee560f39aaa7db3a7 (patch) | |
| tree | 9caece3c29217370e14e7c89de4a043e33df9a0f /pkg/sentry/fsimpl/sys/sys.go | |
| parent | fc7df53222e56fdce7dee002f1fb4c332de616af (diff) | |
[vfs2] Add FilesystemType.Release to avoid reference leaks.
Singleton filesystem like devpts and devtmpfs have a single filesystem shared
among all mounts, so they acquire a "self-reference" when initialized that
must be released when the entire virtual filesystem is released at sandbox
exit.
PiperOrigin-RevId: 336828852
Diffstat (limited to 'pkg/sentry/fsimpl/sys/sys.go')
| -rw-r--r-- | pkg/sentry/fsimpl/sys/sys.go | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/pkg/sentry/fsimpl/sys/sys.go b/pkg/sentry/fsimpl/sys/sys.go index 5a06f4e1c..1ad679830 100644 --- a/pkg/sentry/fsimpl/sys/sys.go +++ b/pkg/sentry/fsimpl/sys/sys.go @@ -52,6 +52,9 @@ func (FilesystemType) Name() string { return Name } +// Release implements vfs.FilesystemType.Release. +func (FilesystemType) Release(ctx context.Context) {} + // GetFilesystem implements vfs.FilesystemType.GetFilesystem. func (fsType FilesystemType) GetFilesystem(ctx context.Context, vfsObj *vfs.VirtualFilesystem, creds *auth.Credentials, source string, opts vfs.GetFilesystemOptions) (*vfs.Filesystem, *vfs.Dentry, error) { devMinor, err := vfsObj.GetAnonBlockDevMinor() |