From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from eggs.gnu.org ([2001:4830:134:3::10]:54850) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1cdgSH-0005X7-9z for qemu-devel@nongnu.org; Tue, 14 Feb 2017 11:59:57 -0500 Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1cdgSD-0003z2-4m for qemu-devel@nongnu.org; Tue, 14 Feb 2017 11:59:53 -0500 Received: from mailhub.sw.ru ([195.214.232.25]:8735 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 1cdgSC-0003vl-Jr for qemu-devel@nongnu.org; Tue, 14 Feb 2017 11:59:48 -0500 From: Vladimir Sementsov-Ogievskiy Date: Tue, 14 Feb 2017 19:59:28 +0300 Message-Id: <1487091579-67092-15-git-send-email-vsementsov@virtuozzo.com> In-Reply-To: <1487091579-67092-1-git-send-email-vsementsov@virtuozzo.com> References: <1487091579-67092-1-git-send-email-vsementsov@virtuozzo.com> Subject: [Qemu-devel] [PATCH 14/25] block: add bdrv_can_store_new_dirty_bitmap List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , To: qemu-block@nongnu.org, qemu-devel@nongnu.org Cc: kwolf@redhat.com, mreitz@redhat.com, armbru@redhat.com, eblake@redhat.com, jsnow@redhat.com, famz@redhat.com, den@openvz.org, stefanha@redhat.com, vsementsov@virtuozzo.com, pbonzini@redhat.com 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 | 4 ++++ 3 files changed, 28 insertions(+) diff --git a/block.c b/block.c index 970e4ca..d5f8af8 100644 --- a/block.c +++ b/block.c @@ -4139,3 +4139,25 @@ void bdrv_store_persistent_dirty_bitmaps(BlockDriverState *bs, Error **errp) drv->bdrv_store_persistent_dirty_bitmaps(bs, errp); } + +bool bdrv_can_store_new_dirty_bitmap(BlockDriverState *bs, const char *name, + uint32_t granularity, Error **errp) +{ + BlockDriver *drv = 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, errp); +} diff --git a/include/block/block.h b/include/block/block.h index 0a20d68..ebf99b3 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); void bdrv_load_autoloading_dirty_bitmaps(BlockDriverState *bs, Error **errp); void bdrv_store_persistent_dirty_bitmaps(BlockDriverState *bs, Error **errp); +bool bdrv_can_store_new_dirty_bitmap(BlockDriverState *bs, const char *name, + uint32_t granularity, Error **errp); #endif diff --git a/include/block/block_int.h b/include/block/block_int.h index c3505da..db68067 100644 --- a/include/block/block_int.h +++ b/include/block/block_int.h @@ -324,6 +324,10 @@ struct BlockDriver { Error **errp); void (*bdrv_store_persistent_dirty_bitmaps)(BlockDriverState *bs, Error **errp); + bool (*bdrv_can_store_new_dirty_bitmap)(BlockDriverState *bs, + const char *name, + uint32_t granularity, + Error **errp); QLIST_ENTRY(BlockDriver) list; }; -- 1.8.3.1