On Thu, 2011-01-20 at 05:33 +0800, David Nicol wrote: > On Wed, Jan 19, 2011 at 2:34 PM, Andrew Morton > <akpm@xxxxxxxxxxxxxxxxxxxx> wrote: > > > It would be much more valuable if those 3.5 seconds were available to > > devices which really really care about bootup times, but very few of > > those devices use rotating disks nowadays, I expect? > > And don't rotating disk modules read and buffer whole tracks, doing > their own readahead, anymore, anyway? Isn't that part of what "on-disk > cache" does? The disk readahead and the metadata readahead is completely different, you didn't even look at the patch or log before saying this. -- To unsubscribe from this list: send the line "unsubscribe linux-fsdevel" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html