On Sat, 24 Mar 2007 23:09:19 +0100 Miklos Szeredi <[EMAIL PROTECTED]> wrote:
> Dirty page accounting/limiting doesn't work for nonlinear mappings, Doesn't it? iirc the problem is that we don't correctly re-clean the ptes while starting writeout. And the dirty-page accounting is in fact correct (it'd darn well better be). > so > for non-ram backed filesystems emulate with linear mappings. This > retains ABI compatibility with previous kernels at minimal code cost. > > All known users of nonlinear mappings actually use tmpfs, so this > shouldn't have any negative effect. Unless someone is using remap_file_pages() against an ext3 file, in which case their application stops working? That would be a problem. These guys: http://www.technovelty.org/code/linux/fremap.html, for example, will be in for a little surprise. - 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/
