On Thu, 2006-10-26 at 09:37 -0400, Theodore Tso wrote: > On Thu, Oct 26, 2006 at 04:36:48PM +1000, David Chinner wrote: > > > > Remember, I'm not just talking about defrag - I'm talking about > > > > an interface that is actually useful to apps that might care > > > > about how data is laid out on disk but the applications writers > > > > don't know anyhting about how filesystem X or Y or Z is > > > > implemented. Putting the burden of learning about fileystem > > > > internals on application developers is not the correct solution. > > If all you want is something for applicaiton developers, about all you > can do is to tell the filesystem, "create the file so that it will be > quickly accessed after accessing this file or this directory". I > really don't see the point of having the application specify block > numbers if you're also claiming the applicaiton isn't going to know > anything about the filesystem layout --- or even the RAID layout of > the filesystem. I don't think it's at **all** useful to be > half-pregnant on this score. I think a utility such as a defragmenter should know about about the filesystem layout. I also think that it would be a good thing to have a consistent interface so that every filesystem isn't implementing a completely different one. -- David Kleikamp IBM Linux Technology Center - 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
