From patchwork Wed Jan 16 16:25:10 2013 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: =?utf-8?q?Beno=C3=AEt_Canet?= X-Patchwork-Id: 212890 Return-Path: X-Original-To: incoming@patchwork.ozlabs.org Delivered-To: patchwork-incoming@bilbo.ozlabs.org Received: from lists.gnu.org (lists.gnu.org [208.118.235.17]) (using TLSv1 with cipher AES256-SHA (256/256 bits)) (Client did not present a certificate) by ozlabs.org (Postfix) with ESMTPS id 67E602C0091 for ; Thu, 17 Jan 2013 04:52:28 +1100 (EST) Received: from localhost ([::1]:53401 helo=lists.gnu.org) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1TvXA2-0007wL-Mh for incoming@patchwork.ozlabs.org; Wed, 16 Jan 2013 12:52:26 -0500 Received: from eggs.gnu.org ([208.118.235.92]:42092) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1TvVrA-00065a-J1 for qemu-devel@nongnu.org; Wed, 16 Jan 2013 11:28:55 -0500 Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1TvVr7-0007cN-VS for qemu-devel@nongnu.org; Wed, 16 Jan 2013 11:28:52 -0500 Received: from nodalink.pck.nerim.net ([62.212.105.220]:43401 helo=paradis.irqsave.net) by eggs.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1TvVr7-0007cE-OP for qemu-devel@nongnu.org; Wed, 16 Jan 2013 11:28:49 -0500 Received: by paradis.irqsave.net (Postfix, from userid 1002) id 4AC0987432A; Wed, 16 Jan 2013 18:00:26 +0100 (CET) Received: from localhost.localdomain (unknown [192.168.77.1]) by paradis.irqsave.net (Postfix) with ESMTP id 122F8874353; Wed, 16 Jan 2013 17:56:24 +0100 (CET) From: =?UTF-8?q?Beno=C3=AEt=20Canet?= To: qemu-devel@nongnu.org Date: Wed, 16 Jan 2013 17:25:10 +0100 Message-Id: <1358353518-5421-5-git-send-email-benoit@irqsave.net> X-Mailer: git-send-email 1.7.10.4 In-Reply-To: <1358353518-5421-1-git-send-email-benoit@irqsave.net> References: <1358353518-5421-1-git-send-email-benoit@irqsave.net> X-detected-operating-system: by eggs.gnu.org: GNU/Linux 2.2.x-3.x [generic] X-Received-From: 62.212.105.220 Cc: kwolf@redhat.com, pbonzini@redhat.com, =?UTF-8?q?Beno=C3=AEt=20Canet?= , stefanha@redhat.com Subject: [Qemu-devel] [RFC V1 04/12] block: Add bdrv_is_dedup_running. X-BeenThere: qemu-devel@nongnu.org X-Mailman-Version: 2.1.14 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: qemu-devel-bounces+incoming=patchwork.ozlabs.org@nongnu.org Sender: qemu-devel-bounces+incoming=patchwork.ozlabs.org@nongnu.org --- block.c | 19 +++++++++++++++++++ include/block/block.h | 1 + 2 files changed, 20 insertions(+) diff --git a/block.c b/block.c index aee33e0..e83666a 100644 --- a/block.c +++ b/block.c @@ -4342,6 +4342,25 @@ bool bdrv_has_dedup(BlockDriverState *bs) return bdi.has_dedup; } +/* Return true if the device has deduplication and it's running */ +bool bdrv_is_dedup_running(BlockDriverState *bs) +{ + BlockDriverInfo bdi; + int ret = 0; + + ret = bdrv_get_info((BlockDriverState *) bs, &bdi); + + if (ret < 0) { + return false; + } + + if (!bdi.has_dedup) { + return false; + } + + return bdi.dedup_running; +} + /* needed for generic scsi interface */ int bdrv_ioctl(BlockDriverState *bs, unsigned long int req, void *buf) diff --git a/include/block/block.h b/include/block/block.h index e6f86ac..f4e1d2a 100644 --- a/include/block/block.h +++ b/include/block/block.h @@ -307,6 +307,7 @@ int bdrv_is_inserted(BlockDriverState *bs); int bdrv_media_changed(BlockDriverState *bs); void bdrv_lock_medium(BlockDriverState *bs, bool locked); bool bdrv_has_dedup(BlockDriverState *bs); +bool bdrv_is_dedup_running(BlockDriverState *bs); void bdrv_eject(BlockDriverState *bs, bool eject_flag); const char *bdrv_get_format_name(BlockDriverState *bs); BlockDriverState *bdrv_find(const char *name);