On Mon, 14 Jun 2010 12:17:50 +0100 Mel Gorman <mel@xxxxxxxxx> wrote: > shrink_page_list() sets up a pagevec to release pages as according as they > are free. It uses significant amounts of stack on the pagevec. This > patch adds pages to be freed via pagevec to a linked list which is then > freed en-masse at the end. This avoids using stack in the main path that > potentially calls writepage(). > hm, spose so. I cen't see any trivial way to eliminate the local pagevec there. > + if (pagevec_count(&freed_pvec)) > + __pagevec_free(&freed_pvec); > ... > - if (pagevec_count(&freed_pvec)) > - __pagevec_free(&freed_pvec); That's an open-coded pagevec_free(). -- To unsubscribe from this list: send the line "unsubscribe linux-fsdevel" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
