diff options
Diffstat (limited to 'pkg/sentry/vfs/genericfstree')
| -rw-r--r-- | pkg/sentry/vfs/genericfstree/genericfstree.go | 11 |
1 files changed, 10 insertions, 1 deletions
diff --git a/pkg/sentry/vfs/genericfstree/genericfstree.go b/pkg/sentry/vfs/genericfstree/genericfstree.go index 2d27d9d35..ba6e6ed49 100644 --- a/pkg/sentry/vfs/genericfstree/genericfstree.go +++ b/pkg/sentry/vfs/genericfstree/genericfstree.go @@ -71,7 +71,7 @@ func PrependPath(vfsroot vfs.VirtualDentry, mnt *vfs.Mount, d *Dentry, b *fspath if mnt == vfsroot.Mount() && &d.vfsd == vfsroot.Dentry() { return vfs.PrependPathAtVFSRootError{} } - if &d.vfsd == mnt.Root() { + if mnt != nil && &d.vfsd == mnt.Root() { return nil } if d.parent == nil { @@ -81,3 +81,12 @@ func PrependPath(vfsroot vfs.VirtualDentry, mnt *vfs.Mount, d *Dentry, b *fspath d = d.parent } } + +// DebugPathname returns a pathname to d relative to its filesystem root. +// DebugPathname does not correspond to any Linux function; it's used to +// generate dentry pathnames for debugging. +func DebugPathname(d *Dentry) string { + var b fspath.Builder + _ = PrependPath(vfs.VirtualDentry{}, nil, d, &b) + return b.String() +} |