Symbol: VFS_QUOTACTL
sys/kern/vfs_syscalls.c
1246
error = VFS_QUOTACTL(mp, uap->cmd, uap->uid,
sys/vfs/nullfs/null_vfsops.c
294
return VFS_QUOTACTL(MOUNTTONULLMOUNT(mp)->nullm_vfs, cmd, uid, arg, cred);