On Sun, 2012-03-04 at 17:58 -0500, Steve Dickson wrote: > On 03/04/2012 05:31 PM, Steve Dickson wrote: > >> NFSv4 is the only protocol that has a standard mount path syntax, and > >> that is because the client performs the job of interpreting the path > >> name and translating it into PUTROOTFH followed by a bunch of LOOKUPs. > >> IOW: the standard syntax there is the one imposed by the client. > >> > >> There is nothing in the NFSv2/v3 MOUNT spec that states that a path > >> needs to start with '/'. Nor is there even anything in the spec that > >> states that '/' is required to be used as the directory component > >> separator. The X/OPEN docs state that '/' is recommended for > >> portability, but do not make it a requirement. See > >> http://pubs.opengroup.org/onlinepubs/9629799/chap8.htm#tagcjh_09_02_02_03 > >> > >> IOW: I'm perfectly allowed to set up a 'mountd' server that uses '\' or > >> even something like '|' as a path component separator. This kind of > >> patch would break the client's existing ability to mount from such a > >> server. > > And where does an server like this exist? One that uses '|' as its > > path component separator?? ;-) > > > > Just to be clear, you are ok with striping the multiple slashes, for > > all protocol versions, but its only kosher to added the leading > > slash for v4 mounts. Correct? > After further review... it appears this is only a v4 issue since > v3 mounts with multiple slashes appear in /proc/mounts with the > multiple slashes (unlike v4 mounts)... > > So to restate... this normalizing of the path names (aka striping > multiple slashes or added the leading slash) only need to occur on > (successful) v4 mounts... Although the former would not be an > problem with v2/v3 mounts but its not needed.... Normalising for v4 only is OK as far as I'm concerned, but as an alternative: is there any reason why you can't just grab the path from '/proc/mounts'? -- Trond Myklebust Linux NFS client maintainer NetApp Trond.Myklebust@xxxxxxxxxx www.netapp.com ��.n��������+%������w��{.n�����{��w��� jg��� �����ݢj����G���� ���j:+v���w�m������w�������h�����٥
