From patchwork Tue Jun 15 14:19:36 2010 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Kevin Wolf X-Patchwork-Id: 55685 Return-Path: X-Original-To: incoming@patchwork.ozlabs.org Delivered-To: patchwork-incoming@bilbo.ozlabs.org Received: from lists.gnu.org (lists.gnu.org [199.232.76.165]) (using TLSv1 with cipher DHE-RSA-AES256-SHA (256/256 bits)) (Client did not present a certificate) by ozlabs.org (Postfix) with ESMTPS id 744B7B7D48 for ; Wed, 16 Jun 2010 00:50:05 +1000 (EST) Received: from localhost ([127.0.0.1]:53023 helo=lists.gnu.org) by lists.gnu.org with esmtp (Exim 4.43) id 1OOXSk-0005vY-Kh for incoming@patchwork.ozlabs.org; Tue, 15 Jun 2010 10:50:02 -0400 Received: from [140.186.70.92] (port=37876 helo=eggs.gnu.org) by lists.gnu.org with esmtp (Exim 4.43) id 1OOWzy-0008A9-Td for qemu-devel@nongnu.org; Tue, 15 Jun 2010 10:20:20 -0400 Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.69) (envelope-from ) id 1OOWzx-0000Ba-LO for qemu-devel@nongnu.org; Tue, 15 Jun 2010 10:20:18 -0400 Received: from mx1.redhat.com ([209.132.183.28]:48335) by eggs.gnu.org with esmtp (Exim 4.69) (envelope-from ) id 1OOWzx-0000BJ-93 for qemu-devel@nongnu.org; Tue, 15 Jun 2010 10:20:17 -0400 Received: from int-mx04.intmail.prod.int.phx2.redhat.com (int-mx04.intmail.prod.int.phx2.redhat.com [10.5.11.17]) by mx1.redhat.com (8.13.8/8.13.8) with ESMTP id o5FEKFYj013135 (version=TLSv1/SSLv3 cipher=DHE-RSA-AES256-SHA bits=256 verify=OK); Tue, 15 Jun 2010 10:20:15 -0400 Received: from localhost.localdomain (dhcp-5-217.str.redhat.com [10.32.5.217]) by int-mx04.intmail.prod.int.phx2.redhat.com (8.13.8/8.13.8) with ESMTP id o5FEJq73025060; Tue, 15 Jun 2010 10:20:13 -0400 From: Kevin Wolf To: anthony@codemonkey.ws Date: Tue, 15 Jun 2010 16:19:36 +0200 Message-Id: <1276611581-3757-15-git-send-email-kwolf@redhat.com> In-Reply-To: <1276611581-3757-1-git-send-email-kwolf@redhat.com> References: <1276611581-3757-1-git-send-email-kwolf@redhat.com> X-Scanned-By: MIMEDefang 2.67 on 10.5.11.17 X-detected-operating-system: by eggs.gnu.org: Genre and OS details not recognized. Cc: kwolf@redhat.com, qemu-devel@nongnu.org Subject: [Qemu-devel] [PATCH 14/19] block: New bdrv_next() X-BeenThere: qemu-devel@nongnu.org X-Mailman-Version: 2.1.5 Precedence: list List-Id: qemu-devel.nongnu.org List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Sender: qemu-devel-bounces+incoming=patchwork.ozlabs.org@nongnu.org Errors-To: qemu-devel-bounces+incoming=patchwork.ozlabs.org@nongnu.org From: Markus Armbruster This is a more flexible alternative to bdrv_iterate(). Signed-off-by: Markus Armbruster Signed-off-by: Kevin Wolf --- block.c | 8 ++++++++ block.h | 1 + 2 files changed, 9 insertions(+), 0 deletions(-) diff --git a/block.c b/block.c index df2d3a6..383d59f 100644 --- a/block.c +++ b/block.c @@ -1330,6 +1330,14 @@ BlockDriverState *bdrv_find(const char *name) return NULL; } +BlockDriverState *bdrv_next(BlockDriverState *bs) +{ + if (!bs) { + return QTAILQ_FIRST(&bdrv_states); + } + return QTAILQ_NEXT(bs, list); +} + void bdrv_iterate(void (*it)(void *opaque, BlockDriverState *bs), void *opaque) { BlockDriverState *bs; diff --git a/block.h b/block.h index 1f69cbd..9df9b38 100644 --- a/block.h +++ b/block.h @@ -168,6 +168,7 @@ void bdrv_set_change_cb(BlockDriverState *bs, void (*change_cb)(void *opaque), void *opaque); void bdrv_get_format(BlockDriverState *bs, char *buf, int buf_size); BlockDriverState *bdrv_find(const char *name); +BlockDriverState *bdrv_next(BlockDriverState *bs); void bdrv_iterate(void (*it)(void *opaque, BlockDriverState *bs), void *opaque); int bdrv_is_encrypted(BlockDriverState *bs);