From d861cd5f14bc42b32eeac20c444a685f1d9748f7 Mon Sep 17 00:00:00 2001 From: Dean Deng Date: Mon, 12 Oct 2020 10:39:03 -0700 Subject: [vfs2] Don't leak disconnected mounts. PiperOrigin-RevId: 336694658 --- pkg/sentry/vfs/vfs.go | 7 +++++++ 1 file changed, 7 insertions(+) (limited to 'pkg/sentry/vfs/vfs.go') diff --git a/pkg/sentry/vfs/vfs.go b/pkg/sentry/vfs/vfs.go index 5bd756ea5..31ea3139c 100644 --- a/pkg/sentry/vfs/vfs.go +++ b/pkg/sentry/vfs/vfs.go @@ -122,6 +122,13 @@ type VirtualFilesystem struct { filesystems map[*Filesystem]struct{} } +// Release drops references on filesystem objects held by vfs. +// +// Precondition: This must be called after VFS.Init() has succeeded. +func (vfs *VirtualFilesystem) Release(ctx context.Context) { + vfs.anonMount.DecRef(ctx) +} + // Init initializes a new VirtualFilesystem with no mounts or FilesystemTypes. func (vfs *VirtualFilesystem) Init(ctx context.Context) error { if vfs.mountpoints != nil { -- cgit v1.2.3