From patchwork Tue May 3 14:55:29 2022 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Hanna Czenczek X-Patchwork-Id: 12836477 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from lists.gnu.org (lists.gnu.org [209.51.188.17]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.lore.kernel.org (Postfix) with ESMTPS id 4A75DC433EF for ; Tue, 3 May 2022 22:52:55 +0000 (UTC) Received: from localhost ([::1]:45130 helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1nm1O1-0003JU-Lm for qemu-devel@archiver.kernel.org; Tue, 03 May 2022 18:52:53 -0400 Received: from eggs.gnu.org ([2001:470:142:3::10]:49196) by lists.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1nlzHs-0001te-QX for qemu-devel@nongnu.org; Tue, 03 May 2022 16:38:27 -0400 Received: from us-smtp-delivery-124.mimecast.com ([170.10.129.124]:24205) by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1nlzHq-00014W-Qy for qemu-devel@nongnu.org; Tue, 03 May 2022 16:38:24 -0400 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=redhat.com; s=mimecast20190719; t=1651610302; h=from:from:reply-to:subject:subject:date:date:message-id:message-id: to:to:cc:cc:mime-version:mime-version:content-type:content-type: content-transfer-encoding:content-transfer-encoding: in-reply-to:in-reply-to:references:references; bh=137C4aKJk05HwV6GxzrQgtJle6PJhcFeuFJ5RtIoWLU=; b=TTV+D4di2qRlftmlEVzTZAfd97tM+7QLJAqfNfZm+dXuT+C73+zpTzomFHM+pZFxXXEX9j z0lo79m2uhLnLM9t0vLCf5uUmQokFtcQALMTBJhLWrD2I29P4KKz+J/UaVhLwTO3aM0FUO dr7bSHOVRpN0z7XNsssuBnFBiXsHad4= Received: from mimecast-mx02.redhat.com (mimecast-mx02.redhat.com [66.187.233.88]) by relay.mimecast.com with ESMTP with STARTTLS (version=TLSv1.2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id us-mta-160-FYAm6iioORShwLEqJLIUZg-1; Tue, 03 May 2022 11:03:20 -0400 X-MC-Unique: FYAm6iioORShwLEqJLIUZg-1 Received: from smtp.corp.redhat.com (int-mx06.intmail.prod.int.rdu2.redhat.com [10.11.54.6]) (using TLSv1.2 with cipher AECDH-AES256-SHA (256/256 bits)) (No client certificate requested) by mimecast-mx02.redhat.com (Postfix) with ESMTPS id 89EC8BB8DC2; Tue, 3 May 2022 14:55:56 +0000 (UTC) Received: from localhost (unknown [10.39.193.124]) by smtp.corp.redhat.com (Postfix) with ESMTPS id 415412166B41; Tue, 3 May 2022 14:55:56 +0000 (UTC) From: Hanna Reitz To: qemu-block@nongnu.org Cc: qemu-devel@nongnu.org, Hanna Reitz , Kevin Wolf , Markus Armbruster , Eric Blake Subject: [PATCH 4/4] block/file: Add file-specific image info Date: Tue, 3 May 2022 16:55:29 +0200 Message-Id: <20220503145529.37070-5-hreitz@redhat.com> In-Reply-To: <20220503145529.37070-1-hreitz@redhat.com> References: <20220503145529.37070-1-hreitz@redhat.com> MIME-Version: 1.0 Content-type: text/plain X-Scanned-By: MIMEDefang 2.78 on 10.11.54.6 Received-SPF: pass client-ip=170.10.129.124; envelope-from=hreitz@redhat.com; helo=us-smtp-delivery-124.mimecast.com X-Spam_score_int: -28 X-Spam_score: -2.9 X-Spam_bar: -- X-Spam_report: (-2.9 / 5.0 requ) BAYES_00=-1.9, DKIMWL_WL_HIGH=-0.082, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, DKIM_VALID_AU=-0.1, DKIM_VALID_EF=-0.1, RCVD_IN_DNSWL_LOW=-0.7, SPF_HELO_NONE=0.001, SPF_PASS=-0.001, T_SCC_BODY_TEXT_LINE=-0.01 autolearn=ham autolearn_force=no X-Spam_action: no action X-BeenThere: qemu-devel@nongnu.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: qemu-devel-bounces+qemu-devel=archiver.kernel.org@nongnu.org Sender: "Qemu-devel" Add some (optional) information that the file driver can provide for image files, namely the extent size. Signed-off-by: Hanna Reitz --- qapi/block-core.json | 26 ++++++++++++++++++++++++-- block/file-posix.c | 30 ++++++++++++++++++++++++++++++ 2 files changed, 54 insertions(+), 2 deletions(-) diff --git a/qapi/block-core.json b/qapi/block-core.json index e7d6c2e0cc..728da051ae 100644 --- a/qapi/block-core.json +++ b/qapi/block-core.json @@ -139,16 +139,29 @@ '*encryption-format': 'RbdImageEncryptionFormat' } } +## +# @ImageInfoSpecificFile: +# +# @extent-size: Extent size (if available) +# +# Since: 7.1 +## +{ 'struct': 'ImageInfoSpecificFile', + 'data': { + '*extent-size': 'size' + } } + ## # @ImageInfoSpecificKind: # # @luks: Since 2.7 # @rbd: Since 6.1 +# @file: Since 7.1 # # Since: 1.7 ## { 'enum': 'ImageInfoSpecificKind', - 'data': [ 'qcow2', 'vmdk', 'luks', 'rbd' ] } + 'data': [ 'qcow2', 'vmdk', 'luks', 'rbd', 'file' ] } ## # @ImageInfoSpecificQCow2Wrapper: @@ -185,6 +198,14 @@ { 'struct': 'ImageInfoSpecificRbdWrapper', 'data': { 'data': 'ImageInfoSpecificRbd' } } +## +# @ImageInfoSpecificFileWrapper: +# +# Since: 7.1 +## +{ 'struct': 'ImageInfoSpecificFileWrapper', + 'data': { 'data': 'ImageInfoSpecificFile' } } + ## # @ImageInfoSpecific: # @@ -199,7 +220,8 @@ 'qcow2': 'ImageInfoSpecificQCow2Wrapper', 'vmdk': 'ImageInfoSpecificVmdkWrapper', 'luks': 'ImageInfoSpecificLUKSWrapper', - 'rbd': 'ImageInfoSpecificRbdWrapper' + 'rbd': 'ImageInfoSpecificRbdWrapper', + 'file': 'ImageInfoSpecificFileWrapper' } } ## diff --git a/block/file-posix.c b/block/file-posix.c index bfd9b21111..4323345c99 100644 --- a/block/file-posix.c +++ b/block/file-posix.c @@ -3068,6 +3068,34 @@ static int raw_get_info(BlockDriverState *bs, BlockDriverInfo *bdi) return 0; } +static ImageInfoSpecific *raw_get_specific_info(BlockDriverState *bs, + Error **errp) +{ + BDRVRawState *s = bs->opaque; + ImageInfoSpecificFile *file_info = g_new0(ImageInfoSpecificFile, 1); + ImageInfoSpecific *spec_info = g_new(ImageInfoSpecific, 1); + + *spec_info = (ImageInfoSpecific){ + .type = IMAGE_INFO_SPECIFIC_KIND_FILE, + .u.file.data = file_info, + }; + +#ifdef FS_IOC_FSGETXATTR + { + struct fsxattr attr; + int ret; + + ret = ioctl(s->fd, FS_IOC_FSGETXATTR, &attr); + if (!ret && attr.fsx_extsize != 0) { + file_info->has_extent_size = true; + file_info->extent_size = attr.fsx_extsize; + } + } +#endif + + return spec_info; +} + static BlockStatsSpecificFile get_blockstats_specific_file(BlockDriverState *bs) { BDRVRawState *s = bs->opaque; @@ -3301,6 +3329,7 @@ BlockDriver bdrv_file = { .bdrv_co_truncate = raw_co_truncate, .bdrv_getlength = raw_getlength, .bdrv_get_info = raw_get_info, + .bdrv_get_specific_info = raw_get_specific_info, .bdrv_get_allocated_file_size = raw_get_allocated_file_size, .bdrv_get_specific_stats = raw_get_specific_stats, @@ -3673,6 +3702,7 @@ static BlockDriver bdrv_host_device = { .bdrv_co_truncate = raw_co_truncate, .bdrv_getlength = raw_getlength, .bdrv_get_info = raw_get_info, + .bdrv_get_specific_info = raw_get_specific_info, .bdrv_get_allocated_file_size = raw_get_allocated_file_size, .bdrv_get_specific_stats = hdev_get_specific_stats,