On Mon, Jan 20, 2014 at 02:20:43PM +0400, Pavel Shilovsky wrote: > > One question: If Samba wants to open a file for delete > > access, there's no corresponding flag in the open > > permissions. There can be the case where Samba wants to open > > *just* for future unlink, no read or write access required. > > Is there a way to achieve this atomically correct? > > You can try to use O_PATH flag. It doesn't give you a delete access > but should be ok because further deleting will be done without file > descriptor -- through unlink syscall. Ok, I did not know about O_PATH. Thanks for that! So I do an open with O_PATH. How do I then make sure that nobody else has a O_DENYDELETE set without doing the unlink itself? Thanks, Volker -- SerNet GmbH, Bahnhofsallee 1b, 37081 Göttingen phone: +49-551-370000-0, fax: +49-551-370000-9 AG Göttingen, HRB 2816, GF: Dr. Johannes Loxen http://www.sernet.de, mailto:kontakt@xxxxxxxxx -- To unsubscribe from this list: send the line "unsubscribe linux-nfs" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
