On Wed, 2008-01-30 at 14:40 -0800, Andrew Morton wrote: > On Wed, 30 Jan 2008 18:28:59 +0100 > Peter Zijlstra <[EMAIL PROTECTED]> wrote: > > > Implement MADV_WILLNEED for anonymous pages by walking the page tables and > > starting asynchonous swap cache reads for all encountered swap pages. > > Why cannot this use (a perhaps suitably-modified) make_pages_present()?
Because make_pages_present() relies on page faults to bring data in and will thus wait for all data to be present before returning. This solution is async; it will just issue a read for the requested pages and moves on. -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to [EMAIL PROTECTED] More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
