From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S933284AbWFZXRb (ORCPT ); Mon, 26 Jun 2006 19:17:31 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S933257AbWFZXQr (ORCPT ); Mon, 26 Jun 2006 19:16:47 -0400 Received: from cust9421.vic01.dataco.com.au ([203.171.70.205]:58783 "EHLO nigel.suspend2.net") by vger.kernel.org with ESMTP id S933215AbWFZWho (ORCPT ); Mon, 26 Jun 2006 18:37:44 -0400 From: Nigel Cunningham Subject: [Suspend2][ 10/32] [Suspend2] Wait on readahead. Date: Tue, 27 Jun 2006 08:37:42 +1000 To: linux-kernel@vger.kernel.org Message-Id: <20060626223741.4376.64838.stgit@nigel.suspend2.net> In-Reply-To: <20060626223706.4376.96042.stgit@nigel.suspend2.net> References: <20060626223706.4376.96042.stgit@nigel.suspend2.net> Content-Type: text/plain; charset=utf-8; format=fixed Content-Transfer-Encoding: 8bit User-Agent: StGIT/0.9 Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org Wait for the next page of readahead to be complete. Signed-off-by: Nigel Cunningham kernel/power/suspend_block_io.c | 15 +++++++++++++++ 1 files changed, 15 insertions(+), 0 deletions(-) diff --git a/kernel/power/suspend_block_io.c b/kernel/power/suspend_block_io.c index f9c883a..ae45fc3 100644 --- a/kernel/power/suspend_block_io.c +++ b/kernel/power/suspend_block_io.c @@ -385,3 +385,18 @@ static void wait_on_one_page(struct io_i do { do_bio_wait(3); } while (io_info->flags); } +/* + * wait_on_readahead + * + * Wait until a particular readahead is ready. + */ +static void suspend_wait_on_readahead(int readahead_index) +{ + int index = readahead_index / BITS_PER_LONG; + int bit = readahead_index - index * BITS_PER_LONG; + + /* read_ahead_index is the one we want to return */ + while (!test_bit(bit, &suspend_readahead_flags[index])) + do_bio_wait(6); +} + -- Nigel Cunningham nigel at suspend2 dot net