[Nfs-ganesha-devel] should we change the name/macros of file-private locks?
Michael Kerrisk (man-pages)
mtk.manpages at gmail.com
Wed Apr 16 23:44:18 MDT 2014
On 04/17/2014 02:31 AM, Jim Lieb wrote:
> On Wednesday, April 16, 2014 13:16:33 Jeremy Allison wrote:
>> On Wed, Apr 16, 2014 at 10:00:46PM +0200, Michael Kerrisk (man-pages) wrote:
>>> [CC += Jeremy Allison]
>>> On Wed, Apr 16, 2014 at 8:57 PM, Jeff Layton <jlayton at redhat.com> wrote:
>>>> Sorry to spam so many lists, but I think this needs widespread
>>>> distribution and consensus.
>>>> File-private locks have been merged into Linux for v3.15, and *now*
>>>> people are commenting that the name and macro definitions for the new
>>>> file-private locks suck.
>>>> ...and I can't even disagree. They do suck.
>>>> We're going to have to live with these for a long time, so it's
>>>> important that we be happy with the names before we're stuck with them.
>>> So, to add my perspective: The existing byte-range locking system has
>>> persisted (despite egregious faults) for well over two decades. One
>>> supposes that Jeff's new improved version might be around
>>> at least as long. With that in mind, and before setting in stone (and
>>> pushing into POSIX) a model of thinking that thousands of programmers
>>> will live with for a long time, it's worth thinking about names.
>>>> Michael Kerrisk suggested several names but I think the only one that
>>>> doesn't have other issues is "file-associated locks", which can be
>>>> distinguished against "process-associated" locks (aka classic POSIX
>>> The names I have suggested are:
>>> file-associated locks
>>> file-handle locks
>>> or (using POSIX terminology)
>>> file-description locks
>> Thanks for the CC: Michael, but to be honest
>> I don't really care what the name is, I just
>> want the functionality. I can change our build
>> system to cope with detecting it under any name
>> you guys choose :-).
> I and the rest of the nfs-ganesha community are with Jeremy and samba wrt
> names. We just want locks that work, i.e. Useful Locks ;)
Yes, sure. The functionality is coming in any case, thanks to Jeff.
The point is: let's make the API as sane as we can. And that's what
this thread is about, so if you have insights or opinions on good
naming, that would be helpful.
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