On Mon, Dec 01, 2014 at 05:58:02PM -0500, Johannes Weiner wrote: > Whether there is a vm_ops->page_mkwrite or not, the page dirtying is > pretty much the same. Make sure the page references are the same in > both cases, then merge the two branches. > > It's tempting to go even further and page-lock the !page_mkwrite case, > to get it in line with everybody else setting the page table and thus > further simplify the model. But that's not quite compelling enough to > justify dropping the pte lock, then relocking and verifying the entry > for filesystems without ->page_mkwrite, which notably includes tmpfs. > Leave it for now and lock the page late in the !page_mkwrite case. > > Signed-off-by: Johannes Weiner <hannes@xxxxxxxxxxx> This would conflict with other patchset of do_wp_page() cleanups, but look good. Acked-by: Kirill A. Shutemov <kirill.shutemov@xxxxxxxxxxxxxxx> -- Kirill A. Shutemov -- To unsubscribe, send a message with 'unsubscribe linux-mm' in the body to majordomo@xxxxxxxxx. For more info on Linux MM, see: http://www.linux-mm.org/ . Don't email: <a href=mailto:"dont@xxxxxxxxx";> email@xxxxxxxxx </a>