On Wed, 11 Jul 2012, Cong Wang wrote: > On Mon, 09 Jul 2012 at 22:41 GMT, Hugh Dickins <hughd@xxxxxxxxxx> wrote: > > Revert 4fb5ef089b28 ("tmpfs: support SEEK_DATA and SEEK_HOLE"). > > I believe it's correct, and it's been nice to have from rc1 to rc6; > > but as the original commit said: > > > > I don't know who actually uses SEEK_DATA or SEEK_HOLE, and whether it > > would be of any use to them on tmpfs. This code adds 92 lines and 752 > > bytes on x86_64 - is that bloat or worthwhile? > > > I don't think 752 bytes matter much, especially for x86_64. > > > > > Nobody asked for it, so I conclude that it's bloat: let's revert tmpfs > > to the dumb generic support for v3.5. We can always reinstate it later > > if useful, and anyone needing it in a hurry can just get it out of git. > > > > If you don't have burden to maintain it, I'd prefer to leave as it is, > I don't think 752-bytes is the reason we revert it. Thank you, your vote has been counted ;) and I'll be glad if yours stimulates some agreement or disagreement. But your vote would count for a lot more if you know of some app which would really benefit from this functionality in tmpfs: I've heard of none. Hugh -- To unsubscribe, send a message with 'unsubscribe linux-mm' in the body to majordomo@xxxxxxxxx. For more info on Linux MM, see: http://www.linux-mm.org/ . Don't email: <a href=mailto:"dont@xxxxxxxxx"> email@xxxxxxxxx </a>