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authorgVisor bot <gvisor-bot@google.com>2021-03-12 01:06:00 +0000
committergVisor bot <gvisor-bot@google.com>2021-03-12 01:06:00 +0000
commit8a7964657411d80c685128531099d6c246216f12 (patch)
tree43a12cad4774774951da1548519e59ecff0050ae /pkg/sentry/fsimpl/overlay
parent3bbc07ece91af55682430e6ae2a30060f5f7fd9c (diff)
parentc5667022b6617d732e0c0bcb8ca3b58d588ceafb (diff)
Merge release-20210301.0-37-gc5667022b (automated)
Diffstat (limited to 'pkg/sentry/fsimpl/overlay')
-rw-r--r--pkg/sentry/fsimpl/overlay/filesystem.go12
1 files changed, 12 insertions, 0 deletions
diff --git a/pkg/sentry/fsimpl/overlay/filesystem.go b/pkg/sentry/fsimpl/overlay/filesystem.go
index 917709d75..84e37f793 100644
--- a/pkg/sentry/fsimpl/overlay/filesystem.go
+++ b/pkg/sentry/fsimpl/overlay/filesystem.go
@@ -1764,3 +1764,15 @@ func (fs *filesystem) PrependPath(ctx context.Context, vfsroot, vd vfs.VirtualDe
defer fs.renameMu.RUnlock()
return genericPrependPath(vfsroot, vd.Mount(), vd.Dentry().Impl().(*dentry), b)
}
+
+// MountOptions implements vfs.FilesystemImpl.MountOptions.
+func (fs *filesystem) MountOptions() string {
+ // Return the mount options from the topmost layer.
+ var vd vfs.VirtualDentry
+ if fs.opts.UpperRoot.Ok() {
+ vd = fs.opts.UpperRoot
+ } else {
+ vd = fs.opts.LowerRoots[0]
+ }
+ return vd.Mount().Filesystem().Impl().MountOptions()
+}