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Diffstat (limited to 'pkg/sentry/fsimpl/tmpfs/fstree.go')
-rw-r--r--pkg/sentry/fsimpl/tmpfs/fstree.go11
1 files changed, 10 insertions, 1 deletions
diff --git a/pkg/sentry/fsimpl/tmpfs/fstree.go b/pkg/sentry/fsimpl/tmpfs/fstree.go
index 2dd98a921..d46351488 100644
--- a/pkg/sentry/fsimpl/tmpfs/fstree.go
+++ b/pkg/sentry/fsimpl/tmpfs/fstree.go
@@ -34,7 +34,7 @@ func genericPrependPath(vfsroot vfs.VirtualDentry, mnt *vfs.Mount, d *dentry, b
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 {
@@ -44,3 +44,12 @@ func genericPrependPath(vfsroot vfs.VirtualDentry, mnt *vfs.Mount, d *dentry, b
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 genericDebugPathname(d *dentry) string {
+ var b fspath.Builder
+ _ = genericPrependPath(vfs.VirtualDentry{}, nil, d, &b)
+ return b.String()
+}