Re: file locking fix for 3.2

[Al Viro]

On Sat, Dec 24, 2011 at 06:50:35PM -0500, J. Bruce Fields wrote:

> Then you're returning -ENOMEM in a case when we really didn't need to do
> an allocation, but is that really a problem?  It's a rare case, and
> opens can already fail with -ENOMEM for other reasons, and I'd rather
> not have the extra hair.

I'm certainly OK with that variant; if the folks maintaining fs/locks.c
are happy with it, I'd suggest going for it.  Note that you don't need
to touch locks_conflict() call at all if you bail out early on allocation
failure and it's definitely simpler and cleaner that way.
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