From mboxrd@z Thu Jan 1 00:00:00 1970 From: "Aneesh Kumar K.V" Subject: Re: [PATCH -V2 1/9] mm: move hugetlbfs region tracking function to common code Date: Sun, 04 Mar 2012 23:07:50 +0530 Message-ID: <87linge07l.fsf@linux.vnet.ibm.com> References: <1330593380-1361-1-git-send-email-aneesh.kumar@linux.vnet.ibm.com> <1330593380-1361-2-git-send-email-aneesh.kumar@linux.vnet.ibm.com> <20120301143345.7e928efe.akpm@linux-foundation.org> Mime-Version: 1.0 Return-path: In-Reply-To: <20120301143345.7e928efe.akpm-de/tnXTf+JLsfHDXvbKv3WD2FQJk+8+b@public.gmane.org> Sender: cgroups-owner-u79uwXL29TY76Z2rM5mHXA@public.gmane.org List-ID: Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit To: Andrew Morton Cc: linux-mm-Bw31MaZKKs3YtjvyW6yDsg@public.gmane.org, mgorman-l3A5Bk7waGM@public.gmane.org, kamezawa.hiroyu-+CUm20s59erQFUHtdCDX3A@public.gmane.org, dhillf-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org, aarcange-H+wXaHxf7aLQT0dZR+AlfA@public.gmane.org, mhocko-AlSwsSmVLrQ@public.gmane.org, hannes-druUgvl0LCNAfugRpC6u6w@public.gmane.org, linux-kernel-u79uwXL29TY76Z2rM5mHXA@public.gmane.org, cgroups-u79uwXL29TY76Z2rM5mHXA@public.gmane.org, Andrea Righi , John Stultz On Thu, 1 Mar 2012 14:33:45 -0800, Andrew Morton wrote: > On Thu, 1 Mar 2012 14:46:12 +0530 > "Aneesh Kumar K.V" wrote: > > > This patch moves the hugetlbfs region tracking function to > > common code. We will be using this in later patches in the > > series. > > > > ... > > > > +struct file_region { > > + struct list_head link; > > + long from; > > + long to; > > +}; > > Both Andrea Righi and John Stultz are working on (more sophisticated) > versions of file region tracking code. And we already have a (poor) > implementation in fs/locks.c. > > That's four versions of the same thing floating around the place. This > is nutty. We should be able to remove region.c once other alternatives are in upstream. I will also look at the alternatives and see if it would need any change to make it usable for this work. Thanks, -aneesh