From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S933224AbWFZWiX (ORCPT ); Mon, 26 Jun 2006 18:38:23 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S933229AbWFZWiV (ORCPT ); Mon, 26 Jun 2006 18:38:21 -0400 Received: from cust9421.vic01.dataco.com.au ([203.171.70.205]:60319 "EHLO nigel.suspend2.net") by vger.kernel.org with ESMTP id S933226AbWFZWhy (ORCPT ); Mon, 26 Jun 2006 18:37:54 -0400 From: Nigel Cunningham Subject: [Suspend2][ 13/32] [Suspend2] Suspend bio completion. Date: Tue, 27 Jun 2006 08:37:52 +1000 To: linux-kernel@vger.kernel.org Message-Id: <20060626223751.4376.9450.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 Routine called in an interrupt context when block io completes. We move the io_info struct from the busy list to the ready-for-cleanup list. Signed-off-by: Nigel Cunningham kernel/power/suspend_block_io.c | 27 +++++++++++++++++++++++++++ 1 files changed, 27 insertions(+), 0 deletions(-) diff --git a/kernel/power/suspend_block_io.c b/kernel/power/suspend_block_io.c index a1fcacb..288718c 100644 --- a/kernel/power/suspend_block_io.c +++ b/kernel/power/suspend_block_io.c @@ -436,3 +436,30 @@ static void suspend_cleanup_readahead(in return; } +/* + * suspend_end_bio + * + * Description: Function called by block driver from interrupt context when I/O + * is completed. This is the reason we use spinlocks in + * manipulating the io_info lists. + * Nearly the fs/buffer.c version, but we want to mark the page as + * done in our own structures too. + */ + +static int suspend_end_bio(struct bio *bio, unsigned int num, int err) +{ + struct io_info *io_info = bio->bi_private; + unsigned long flags; + + spin_lock_irqsave(&ioinfo_busy_lock, flags); + list_del_init(&io_info->list); + spin_unlock_irqrestore(&ioinfo_busy_lock, flags); + + set_bit(IO_AWAITING_CLEANUP, &io_info->flags); + + spin_lock_irqsave(&ioinfo_ready_lock, flags); + list_add_tail(&io_info->list, &ioinfo_ready_for_cleanup); + spin_unlock_irqrestore(&ioinfo_ready_lock, flags); + return 0; +} + -- Nigel Cunningham nigel at suspend2 dot net