On Wed, 19 May 2010, Nick Piggin wrote: > What would be needed is to have filesystem maintainers go through and > enable it on a case by case basis. It's trivial for tmpfs/ramfs type > filesystems and I have a patch for those, but I never posted it on.yet. > Even basic buffer head filesystems IIRC get a little more complex -- > but we may get some milage just out of invalidating the existing > pagecache rather than getting fancy and trying to move buffers over > to the new page. There is a "migration" address space operation for moving pages. Page migration requires that in order to be able to move dirty pages. Can splice use that? -- To unsubscribe, send a message with 'unsubscribe linux-mm' in the body to majordomo@xxxxxxxxxx For more info on Linux MM, see: http://www.linux-mm.org/ . Don't email: <a href=mailto:"dont@xxxxxxxxx";> email@xxxxxxxxx </a>