Anton Altaparmakov <[EMAIL PROTECTED]> wrote: > > Below is a patch which adds a function > mm/filemap.c::find_or_create_pages(), locks a range of pages. Please see > the function description in the patch for details.
This isn't very nice, is it, really? Kind of a square peg in a round hole. If you took the approach of defining a custom file_operations.write() then I'd imagine that the write() side of things would fall out fairly neatly: no need for s_umount and i_sem needs to be taken anyway. No trylocking. And for the vmscan->writepage() side of things I wonder if it would be possible to overload the mapping's ->nopage handler. If the target page lies in a hole, go off and allocate all the necessary pagecache pages, zero them, mark them dirty? - 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/
