On Thu, 2010-11-18 at 18:53 +0800, Peng Tao wrote: > Hi, all, > > nfs_writepages calls into > write_cache_pages()->nfs_writepages_callback()->nfs_do_writepage()->nfs_page_async_flush(), > where it asserts BUG_ON(test_bit(PG_CLEAN, &req->wb_flags)). > My question is: how do we guarantee the request has PG_CLEAN flag set? We don't. We guarantee that the request has PG_CLEAN cleared, and that is done when we dirty the page (see nfs_try_to_update_request()). Cheers Trond -- To unsubscribe from this list: send the line "unsubscribe linux-nfs" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
