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Mon, 11 Nov 2019 16:02:39 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=redhat.com; s=mimecast20190719; t=1573488164; 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=YBxYyLElSLzboh8cesGsJMPgXDGU3wNgSyzMbJz9L+E=; b=IoWLjt5mrSodjPqzR57cgGzTt0joOdUT1c6znlxSoJSUeXJErGOtbTtv3zi7X/mOOi7cLz +/+UgrABdvZJFQrkj4oSKxtpbFwzE6oFW0V/thUUvpGUq8eLGRLn2gjh3SzBGcjP9o5wNf l/pAm7j883hRDkoxVL2QGCtqJHuJ+I4= From: Max Reitz To: qemu-block@nongnu.org Subject: [PATCH for-5.0 v2 07/23] blkverify: Implement .bdrv_recurse_can_replace() Date: Mon, 11 Nov 2019 17:02:00 +0100 Message-Id: <20191111160216.197086-8-mreitz@redhat.com> In-Reply-To: <20191111160216.197086-1-mreitz@redhat.com> References: <20191111160216.197086-1-mreitz@redhat.com> MIME-Version: 1.0 X-Scanned-By: MIMEDefang 2.79 on 10.5.11.13 X-MC-Unique: kadYVi_PNMiRCla8N5kaKw-1 X-Mimecast-Spam-Score: 0 Content-Transfer-Encoding: quoted-printable X-detected-operating-system: by eggs.gnu.org: GNU/Linux 2.2.x-3.x [generic] [fuzzy] X-Received-From: 207.211.31.120 X-BeenThere: qemu-devel@nongnu.org X-Mailman-Version: 2.1.23 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: Kevin Wolf , Vladimir Sementsov-Ogievskiy , Alberto Garcia , qemu-devel@nongnu.org, Max Reitz Errors-To: qemu-devel-bounces+importer=patchew.org@nongnu.org Sender: "Qemu-devel" X-ZohoMail-DKIM: fail (Header signature does not verify) Content-Type: text/plain; charset="utf-8" Signed-off-by: Max Reitz Reviewed-by: Vladimir Sementsov-Ogievskiy --- block/blkverify.c | 15 +++++++++++++++ 1 file changed, 15 insertions(+) diff --git a/block/blkverify.c b/block/blkverify.c index 304b0a1368..0add3ab483 100644 --- a/block/blkverify.c +++ b/block/blkverify.c @@ -282,6 +282,20 @@ static bool blkverify_recurse_is_first_non_filter(Bloc= kDriverState *bs, return bdrv_recurse_is_first_non_filter(s->test_file->bs, candidate); } =20 +static bool blkverify_recurse_can_replace(BlockDriverState *bs, + BlockDriverState *to_replace) +{ + BDRVBlkverifyState *s =3D bs->opaque; + + /* + * blkverify quits the whole qemu process if there is a mismatch + * between bs->file->bs and s->test_file->bs. Therefore, we know + * know that both must match bs and we can recurse down to either. + */ + return bdrv_recurse_can_replace(bs->file->bs, to_replace) || + bdrv_recurse_can_replace(s->test_file->bs, to_replace); +} + static void blkverify_refresh_filename(BlockDriverState *bs) { BDRVBlkverifyState *s =3D bs->opaque; @@ -328,6 +342,7 @@ static BlockDriver bdrv_blkverify =3D { =20 .is_filter =3D true, .bdrv_recurse_is_first_non_filter =3D blkverify_recurse_is_first_non_f= ilter, + .bdrv_recurse_can_replace =3D blkverify_recurse_can_replace, }; =20 static void bdrv_blkverify_init(void) --=20 2.23.0