Hello. In the function __d_path() at http://lxr.linux.no/source/fs/dcache.c#L1354 , "vfsmnt->mnt_parent" "vfsmnt->mnt_mountpoint" "vfsmnt->mnt_parent" are protected by spin_lock(&vfsmount_lock), while "vfsmnt->mnt_root" is not. In the function do_move_mount() at http://lxr.linux.no/source/fs/namespace.c#L695 , "old_nd.mnt->mnt_root" is protected by spin_lock(&vfsmount_lock). Is spin_lock(&vfsmount_lock) unnecessary for referring "vfsmnt->mnt_root" ? Regards. -- Kernelnewbies: Help each other learn about the Linux kernel. Archive: http://mail.nl.linux.org/kernelnewbies/ FAQ: http://kernelnewbies.org/faq/
