vfs_swapopttbl_nolock
static void vfs_swapopttbl_nolock(mntopts_t *, mntopts_t *);
vfs_swapopttbl_nolock(optbl1, optbl2);
static void vfs_swapopttbl_nolock(mntopts_t *, mntopts_t *);
vfs_swapopttbl_nolock(&mnt_mntopts, &tmp_mntopts);
vfs_swapopttbl_nolock(optbl1, optbl2);