From nobody Tue Jul 15 06:02:50 2025 Delivered-To: importer@patchew.org Received-SPF: pass (zoho.com: domain of gnu.org designates 208.118.235.17 as permitted sender) client-ip=208.118.235.17; envelope-from=qemu-devel-bounces+importer=patchew.org@nongnu.org; helo=lists.gnu.org; Authentication-Results: mx.zoho.com; spf=pass (zoho.com: domain of gnu.org designates 208.118.235.17 as permitted sender) smtp.mailfrom=qemu-devel-bounces+importer=patchew.org@nongnu.org; Return-Path: Received: from lists.gnu.org (lists.gnu.org [208.118.235.17]) by mx.zohomail.com with SMTPS id 1486041847565954.6527729300074; Thu, 2 Feb 2017 05:24:07 -0800 (PST) Received: from localhost ([::1]:56537 helo=lists.gnu.org) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1cZHMr-0004PJ-Cq for importer@patchew.org; Thu, 02 Feb 2017 08:24:05 -0500 Received: from eggs.gnu.org ([2001:4830:134:3::10]:46155) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1cZHKk-0002cB-75 for qemu-devel@nongnu.org; Thu, 02 Feb 2017 08:21:56 -0500 Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1cZHKi-0008HH-PF for qemu-devel@nongnu.org; Thu, 02 Feb 2017 08:21:54 -0500 Received: from mailhub.sw.ru ([195.214.232.25]:31474 helo=relay.sw.ru) by eggs.gnu.org with esmtps (TLS1.0:DHE_RSA_AES_256_CBC_SHA1:32) (Exim 4.71) (envelope-from ) id 1cZHKi-0008G1-CF for qemu-devel@nongnu.org; Thu, 02 Feb 2017 08:21:52 -0500 Received: from kvm.qa.sw.ru. (msk-vpn.virtuozzo.com [195.214.232.6]) by relay.sw.ru (8.13.4/8.13.4) with ESMTP id v12DLkKn005095; Thu, 2 Feb 2017 16:21:47 +0300 (MSK) From: Vladimir Sementsov-Ogievskiy To: qemu-block@nongnu.org, qemu-devel@nongnu.org Date: Thu, 2 Feb 2017 16:21:35 +0300 Message-Id: <20170202132145.168790-15-vsementsov@virtuozzo.com> X-Mailer: git-send-email 2.11.0 In-Reply-To: <20170202132145.168790-1-vsementsov@virtuozzo.com> References: <20170202132145.168790-1-vsementsov@virtuozzo.com> X-detected-operating-system: by eggs.gnu.org: OpenBSD 3.x [fuzzy] X-Received-From: 195.214.232.25 Subject: [Qemu-devel] [PATCH 14/24] block: add bdrv_can_store_new_dirty_bitmap X-BeenThere: qemu-devel@nongnu.org X-Mailman-Version: 2.1.21 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: kwolf@redhat.com, vsementsov@virtuozzo.com, famz@redhat.com, armbru@redhat.com, mreitz@redhat.com, stefanha@redhat.com, pbonzini@redhat.com, den@openvz.org, jsnow@redhat.com Errors-To: qemu-devel-bounces+importer=patchew.org@nongnu.org Sender: "Qemu-devel" X-ZohoMail: RSF_0 Z_629925259 SPT_0 Content-Transfer-Encoding: quoted-printable MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" This will be needed to check some restrictions before making bitmap persistent in qmp-block-dirty-bitmap-add (this functionality will be added by future patch) Signed-off-by: Vladimir Sementsov-Ogievskiy Reviewed-by: Max Reitz --- block.c | 22 ++++++++++++++++++++++ include/block/block.h | 2 ++ include/block/block_int.h | 2 ++ 3 files changed, 26 insertions(+) diff --git a/block.c b/block.c index 970e4ca50e..d5f8af82bf 100644 --- a/block.c +++ b/block.c @@ -4139,3 +4139,25 @@ void bdrv_store_persistent_dirty_bitmaps(BlockDriver= State *bs, Error **errp) =20 drv->bdrv_store_persistent_dirty_bitmaps(bs, errp); } + +bool bdrv_can_store_new_dirty_bitmap(BlockDriverState *bs, const char *nam= e, + uint32_t granularity, Error **errp) +{ + BlockDriver *drv =3D bs->drv; + + if (!drv) { + error_setg_errno(errp, ENOMEDIUM, + "Can't store persistent bitmaps to %s", + bdrv_get_device_or_node_name(bs)); + return false; + } + + if (!drv->bdrv_can_store_new_dirty_bitmap) { + error_setg_errno(errp, ENOTSUP, + "Can't store persistent bitmaps to %s", + bdrv_get_device_or_node_name(bs)); + return false; + } + + return drv->bdrv_can_store_new_dirty_bitmap(bs, name, granularity, err= p); +} diff --git a/include/block/block.h b/include/block/block.h index 0a20d68f0f..ebf99b38ad 100644 --- a/include/block/block.h +++ b/include/block/block.h @@ -553,5 +553,7 @@ void bdrv_del_child(BlockDriverState *parent, BdrvChild= *child, Error **errp); =20 void bdrv_load_autoloading_dirty_bitmaps(BlockDriverState *bs, Error **err= p); void bdrv_store_persistent_dirty_bitmaps(BlockDriverState *bs, Error **err= p); +bool bdrv_can_store_new_dirty_bitmap(BlockDriverState *bs, const char *nam= e, + uint32_t granularity, Error **errp); =20 #endif diff --git a/include/block/block_int.h b/include/block/block_int.h index c3505da56e..a09c6e90c9 100644 --- a/include/block/block_int.h +++ b/include/block/block_int.h @@ -324,6 +324,8 @@ struct BlockDriver { Error **errp); void (*bdrv_store_persistent_dirty_bitmaps)(BlockDriverState *bs, Error **errp); + bool (*bdrv_can_store_new_dirty_bitmap)(BlockDriverState *bs, const ch= ar *name, + uint32_t granularity, Error **= errp); =20 QLIST_ENTRY(BlockDriver) list; }; --=20 2.11.0