Hello, this patch series changes Sasha's quotactl_path() syscall to an fd-based one quotactl_fd() syscall and enables the syscall again. The fd-based syscall was chosen over the path based one because there's no real need for the path - identifying filesystem to operate on by fd is perfectly fine for quotactl and thus we can avoid the need to specify all the details of path lookup in the quotactl_path() API (and possibly keep that uptodate with all the developments in that field). Patches passed some basic functional testing. Please review. Honza