2011-11-23 19:54:12

by Mkrtchyan, Tigran

[permalink] [raw]
Subject: nfs-utils and libnfsidmap

Hi All,

today was tracing a bug in nfs-utils/libnfsidmap and after a log
debugging located it and
finally realized that it's already fixed by Steve Dickson (
http://git.linux-nfs.org/?p=steved/nfs-utils.git;a=commit;h=d22ef3f525d71b565fcc688557273a6cabeeb71a
). Nevertheless during
this procedure it turned out that there is quite some code duplicated
between nfs-utils and
libnfsidmap.

Questions:
a) why nfs-utils duplicates some part of libnfsidmap and still depends o it
b) is there readon for code duplication? Licensing or so
c) what ww need to do to get rid of duplication

I expect the answer of 'c' will contain something like time and man power.
I am volunteering to to pend some time on it.

Regards,
Tigran.


2011-11-28 14:48:27

by Steve Dickson

[permalink] [raw]
Subject: Re: nfs-utils and libnfsidmap

On 11/23/2011 03:13 PM, J. Bruce Fields wrote:
> On Wed, Nov 23, 2011 at 08:54:06PM +0100, Tigran Mkrtchyan wrote:
>> Hi All,
>>
>> today was tracing a bug in nfs-utils/libnfsidmap and after a log
>> debugging located it and
>> finally realized that it's already fixed by Steve Dickson (
>> http://git.linux-nfs.org/?p=steved/nfs-utils.git;a=commit;h=d22ef3f525d71b565fcc688557273a6cabeeb71a
>> ). Nevertheless during
>> this procedure it turned out that there is quite some code duplicated
>> between nfs-utils and
>> libnfsidmap.
>>
>> Questions:
>> a) why nfs-utils duplicates some part of libnfsidmap and still depends o it
>> b) is there readon for code duplication? Licensing or so
>> c) what ww need to do to get rid of duplication
>>
>> I expect the answer of 'c' will contain something like time and man power.
>> I am volunteering to to pend some time on it.
>
> I doubt there's any real reason for duplication.
Just curious as to what code we are talking about...

>
> Probably libnfsidmap should be part of nfs-utils, actually.
I guess we could roll the libnfsidmap git tree into the nfs-utils
tree... if that make senses... It probably would simply things..

>
> And maybe we don't need it at all--the original reason to split out
> libnfsidmap was to share the code with libacl, so the posix getfacl
> command could do v4->posix acl mapping, but those patches never made it
> upstream.
So you don't think this will every happen?

steved.

>
> --b.
> --
> To unsubscribe from this list: send the line "unsubscribe linux-nfs" in
> the body of a message to [email protected]
> More majordomo info at http://vger.kernel.org/majordomo-info.html

2011-11-28 17:06:47

by J. Bruce Fields

[permalink] [raw]
Subject: Re: nfs-utils and libnfsidmap

On Mon, Nov 28, 2011 at 09:48:13AM -0500, Steve Dickson wrote:
> On 11/23/2011 03:13 PM, J. Bruce Fields wrote:
> > On Wed, Nov 23, 2011 at 08:54:06PM +0100, Tigran Mkrtchyan wrote:
> >> Hi All,
> >>
> >> today was tracing a bug in nfs-utils/libnfsidmap and after a log
> >> debugging located it and
> >> finally realized that it's already fixed by Steve Dickson (
> >> http://git.linux-nfs.org/?p=steved/nfs-utils.git;a=commit;h=d22ef3f525d71b565fcc688557273a6cabeeb71a
> >> ). Nevertheless during
> >> this procedure it turned out that there is quite some code duplicated
> >> between nfs-utils and
> >> libnfsidmap.
> >>
> >> Questions:
> >> a) why nfs-utils duplicates some part of libnfsidmap and still depends o it
> >> b) is there readon for code duplication? Licensing or so
> >> c) what ww need to do to get rid of duplication
> >>
> >> I expect the answer of 'c' will contain something like time and man power.
> >> I am volunteering to to pend some time on it.
> >
> > I doubt there's any real reason for duplication.
> Just curious as to what code we are talking about...

Yes, maybe Tigran can demonstrate with a patch.

> > Probably libnfsidmap should be part of nfs-utils, actually.
> I guess we could roll the libnfsidmap git tree into the nfs-utils
> tree... if that make senses... It probably would simply things..

OK.

> > And maybe we don't need it at all--the original reason to split out
> > libnfsidmap was to share the code with libacl, so the posix getfacl
> > command could do v4->posix acl mapping, but those patches never made it
> > upstream.
> So you don't think this will every happen?

I don't know. If it's easy to keep it as a separate library, then maybe
we should just in case. But for now it seems unlikely.

--b.

2011-11-23 20:13:47

by J. Bruce Fields

[permalink] [raw]
Subject: Re: nfs-utils and libnfsidmap

On Wed, Nov 23, 2011 at 08:54:06PM +0100, Tigran Mkrtchyan wrote:
> Hi All,
>
> today was tracing a bug in nfs-utils/libnfsidmap and after a log
> debugging located it and
> finally realized that it's already fixed by Steve Dickson (
> http://git.linux-nfs.org/?p=steved/nfs-utils.git;a=commit;h=d22ef3f525d71b565fcc688557273a6cabeeb71a
> ). Nevertheless during
> this procedure it turned out that there is quite some code duplicated
> between nfs-utils and
> libnfsidmap.
>
> Questions:
> a) why nfs-utils duplicates some part of libnfsidmap and still depends o it
> b) is there readon for code duplication? Licensing or so
> c) what ww need to do to get rid of duplication
>
> I expect the answer of 'c' will contain something like time and man power.
> I am volunteering to to pend some time on it.

I doubt there's any real reason for duplication.

Probably libnfsidmap should be part of nfs-utils, actually.

And maybe we don't need it at all--the original reason to split out
libnfsidmap was to share the code with libacl, so the posix getfacl
command could do v4->posix acl mapping, but those patches never made it
upstream.

--b.

2011-12-02 15:15:15

by J. Bruce Fields

[permalink] [raw]
Subject: Re: nfs-utils and libnfsidmap

On Fri, Dec 02, 2011 at 03:41:21PM +0100, Tigran Mkrtchyan wrote:
> On Mon, Nov 28, 2011 at 3:48 PM, Steve Dickson <[email protected]> wrote:
> > On 11/23/2011 03:13 PM, J. Bruce Fields wrote:
> >> On Wed, Nov 23, 2011 at 08:54:06PM +0100, Tigran Mkrtchyan wrote:
> >>> Hi All,
> >>>
> >>> today was tracing a bug in nfs-utils/libnfsidmap and after a log
> >>> debugging located it and
> >>> finally realized that it's already fixed by Steve Dickson (
> >>> http://git.linux-nfs.org/?p=steved/nfs-utils.git;a=commit;h=d22ef3f525d71b565fcc688557273a6cabeeb71a
> >>> ). Nevertheless during
> >>> this procedure it turned out that there is quite some code duplicated
> >>> between nfs-utils and
> >>> libnfsidmap.
> >>>
> >>> Questions:
> >>>    a) why nfs-utils duplicates some part of libnfsidmap and still depends o it
> >>>    b) is there readon for code duplication? Licensing or so
> >>>    c) what ww need to do to get rid of duplication
> >>>
> >>> I expect the answer of 'c' will contain something like time and man power.
> >>> I am volunteering to to pend some time on it.
> >>
> >> I doubt there's any real reason for duplication.
> > Just curious as to what code we are talking about...
>
> for example
> nfs-utils/support/nfs/conffile.c => libnfsidmap/cfg.c
> nfs-utils/utils/idmapd/queue.h => libnfsidmap/queue.h
>
> probably some other files as well.

OK. I'm sure reasonable patches would be welcomed.

--b.

2011-12-02 14:41:22

by Mkrtchyan, Tigran

[permalink] [raw]
Subject: Re: nfs-utils and libnfsidmap

On Mon, Nov 28, 2011 at 3:48 PM, Steve Dickson <[email protected]> wrote:
> On 11/23/2011 03:13 PM, J. Bruce Fields wrote:
>> On Wed, Nov 23, 2011 at 08:54:06PM +0100, Tigran Mkrtchyan wrote:
>>> Hi All,
>>>
>>> today was tracing a bug in nfs-utils/libnfsidmap and after a log
>>> debugging located it and
>>> finally realized that it's already fixed by Steve Dickson (
>>> http://git.linux-nfs.org/?p=steved/nfs-utils.git;a=commit;h=d22ef3f525d71b565fcc688557273a6cabeeb71a
>>> ). Nevertheless during
>>> this procedure it turned out that there is quite some code duplicated
>>> between nfs-utils and
>>> libnfsidmap.
>>>
>>> Questions:
>>>    a) why nfs-utils duplicates some part of libnfsidmap and still depends o it
>>>    b) is there readon for code duplication? Licensing or so
>>>    c) what ww need to do to get rid of duplication
>>>
>>> I expect the answer of 'c' will contain something like time and man power.
>>> I am volunteering to to pend some time on it.
>>
>> I doubt there's any real reason for duplication.
> Just curious as to what code we are talking about...

for example
nfs-utils/support/nfs/conffile.c => libnfsidmap/cfg.c
nfs-utils/utils/idmapd/queue.h => libnfsidmap/queue.h

probably some other files as well.

Tigran.

>
>>
>> Probably libnfsidmap should be part of nfs-utils, actually.
> I guess we could roll the libnfsidmap git tree into the nfs-utils
> tree... if that make senses... It probably would simply things..
>
>>
>> And maybe we don't need it at all--the original reason to split out
>> libnfsidmap was to share the code with libacl, so the posix getfacl
>> command could do v4->posix acl mapping, but those patches never made it
>> upstream.
> So you don't think this will every happen?
>
> steved.
>
>>
>> --b.
>> --
>> To unsubscribe from this list: send the line "unsubscribe linux-nfs" in
>> the body of a message to [email protected]
>> More majordomo info at  http://vger.kernel.org/majordomo-info.html