1 files changed, 0 insertions, 52 deletions
diff --git a/src/libutil/util.cc b/src/libutil/util.cc
index 8e813abc2..6d6e55ad1 100644
--- a/src/libutil/util.cc
+++ b/src/libutil/util.cc
@@ -88,56 +88,4 @@ void ignoreException(Verbosity lvl)
 
 
 
-#if __linux__
-static AutoCloseFD fdSavedMountNamespace;
-static AutoCloseFD fdSavedRoot;
-#endif
-
-void saveMountNamespace()
-{
-#if __linux__
-    static std::once_flag done;
-    std::call_once(done, []() {
-        fdSavedMountNamespace = AutoCloseFD{open("/proc/self/ns/mnt", O_RDONLY)};
-        if (!fdSavedMountNamespace)
-            throw SysError("saving parent mount namespace");
-
-        fdSavedRoot = AutoCloseFD{open("/proc/self/root", O_RDONLY)};
-    });
-#endif
-}
-
-void restoreMountNamespace()
-{
-#if __linux__
-    try {
-        auto savedCwd = absPath(".");
-
-        if (fdSavedMountNamespace && setns(fdSavedMountNamespace.get(), CLONE_NEWNS) == -1)
-            throw SysError("restoring parent mount namespace");
-
-        if (fdSavedRoot) {
-            if (fchdir(fdSavedRoot.get()))
-                throw SysError("chdir into saved root");
-            if (chroot("."))
-                throw SysError("chroot into saved root");
-        }
-
-        if (chdir(savedCwd.c_str()) == -1)
-            throw SysError("restoring cwd");
-    } catch (Error & e) {
-        debug(e.msg());
-    }
-#endif
-}
-
-void unshareFilesystem()
-{
-#ifdef __linux__
-    if (unshare(CLONE_FS) != 0 && errno != EPERM)
-        throw SysError("unsharing filesystem state in download thread");
-#endif
-}
-
-
 }