On Tue, Sep 08, 2015 at 01:39:18PM -0700, Darrick J. Wong wrote: > > >> +The file descriptors must not refer to the same file. > > > > > > Why? btrfs (and XFS) reflink can handle the case of a file sharing blocks > > > with itself. > > > > I've never really thought about it... Zach had that in his initial > > submission, so mentioned it in the man page. Should I remove that bit? > > Yes, please! > > I could be wrong, but I think btrfs only started supporting files that share > blocks with themselves relatively recently(?) The support was added into the cloning ioctl itself, otherwise same-file clones were always possible with a sidestep using another file. -- To unsubscribe from this list: send the line "unsubscribe linux-api" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
