On Wed, 07 Mar 2007 11:39:02 +0000 Pádraig Brady <[EMAIL PROTECTED]> wrote:
> Andrew Morton wrote: > > On Tue, 06 Mar 2007 12:10:49 +0000 > > P__draig Brady <[EMAIL PROTECTED]> wrote: > >> Perhaps one could possibly just evict pages with _mapcount==0 ? > > > > That is the present fadvise(FADV_DONTNEED) behaviour. > > Ah right. It doesn't invalidate page_mapped() pages. yup > If that means it doesn't invalidate pages previously cached > by other processes, then great. It will do that. This is why I point out that this userspace tool could (easily) be enhanced to not invalidate pages which were in pagecache prior to their being read by the managed application. - 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/
