On Tuesday 29 July 2008 09:09, Andrew Morton wrote: > On Mon, 28 Jul 2008 19:00:32 -0400 > > Christoph Hellwig <hch@xxxxxxxxxxxxx> wrote: > > On Mon, Jul 28, 2008 at 03:46:36PM -0700, akpm@xxxxxxxxxxxxxxxxxxxx wrote: > > > From: Hisashi Hifumi <hifumi.hisashi@xxxxxxxxxxxxx> > > > > > > When we read some part of a file through pagecache, if there is a > > > pagecache of corresponding index but this page is not uptodate, read IO > > > is issued and this page will be uptodate. > > > > I was under the impression we wanted to do this in a nicer way than > > the hacky method? > > The only description I've seen of "a nicer way" is vague two-word > descriptions of "changing readpage". Or something. No indication of > what those changes are, nor who will implement them nor when. > > That just isn't solid enough to block a change which has significant > performance benefits. Yes I thought it would be nicer to do it by changing readpage, but I said I'm happy to try to consolidate them myself down the track. It is fairly low impact on core code. -- To unsubscribe from this list: send the line "unsubscribe linux-ext4" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
