On Wed, Mar 07, 2007 at 03:34:27PM +0100, Peter Zijlstra wrote: > On Wed, 2007-03-07 at 14:52 +0100, Peter Zijlstra wrote: > > > True. We could even guesstimate the nonlinear dirty pages by subtracting > > the result of page_mkclean() from page_mapcount() and force an > > msync(MS_ASYNC) on said mapping (or all (nonlinear) mappings of the > > related file) when some threshold gets exceeded. > > Almost, but not quite, we'd need to extract another value from the > page_mkclean() run, the actual number of mappings encountered. The > return value only sums the number of dirty mappings encountered. > > s390 would already work I guess. > > Certainly doable.
But if we restrict it to root only, and have a note in the man page about it, then it really isn't worth cluttering up the kernel. - 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/
