Oof, I see this has been discussed since (and, actually, IIRC it was
discussed a long time ago too).
Anyways, IMO, this requires a new syscall or syscalls:
xdevrename(2)
xdevcopy(2)
and then mv(1) can do:
if (rename(old, new) != 0) {
if (xdevrename(old, new) != 0) {
/* do a cp(1) instead */
return (do_cp(old, new));
}
return (0);
}
return (0);
cp(1), and maybe ln(1), could do something similar using xdevcopy(2).
Nico
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