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Thu, 23 Apr 2020 10:54:39 +0000 (UTC) Received: from dresden.str.redhat.com (ovpn-113-212.ams2.redhat.com [10.36.113.212]) by smtp.corp.redhat.com (Postfix) with ESMTPS id 2C306605CB; Thu, 23 Apr 2020 10:54:37 +0000 (UTC) Subject: Re: [PATCH v5 5/9] raw-format: Support BDRV_REQ_ZERO_WRITE for truncate To: Kevin Wolf , qemu-block@nongnu.org References: <20200422152129.167074-1-kwolf@redhat.com> <20200422152129.167074-6-kwolf@redhat.com> From: Max Reitz Autocrypt: addr=mreitz@redhat.com; prefer-encrypt=mutual; keydata= mQENBFXOJlcBCADEyyhOTsoa/2ujoTRAJj4MKA21dkxxELVj3cuILpLTmtachWj7QW+TVG8U /PsMCFbpwsQR7oEy8eHHZwuGQsNpEtNC2G/L8Yka0BIBzv7dEgrPzIu+W3anZXQW4702+uES U29G8TP/NGfXRRHGlbBIH9KNUnOSUD2vRtpOLXkWsV5CN6vQFYgQfFvmp5ZpPeUe6xNplu8V mcTw8OSEDW/ZnxJc8TekCKZSpdzYoxfzjm7xGmZqB18VFwgJZlIibt1HE0EB4w5GsD7x5ekh awIe3RwoZgZDLQMdOitJ1tUc8aqaxvgA4tz6J6st8D8pS//m1gAoYJWGwwIVj1DjTYLtABEB AAG0HU1heCBSZWl0eiA8bXJlaXR6QHJlZGhhdC5jb20+iQFTBBMBCAA9AhsDBQkSzAMABQsJ CAcCBhUICQoLAgQWAgMBAh4BAheABQJVzie5FRhoa3A6Ly9rZXlzLmdudXBnLm5ldAAKCRD0 B9sAYdXPQDcIB/9uNkbYEex1rHKz3mr12uxYMwLOOFY9fstP5aoVJQ1nWQVB6m2cfKGdcRe1 2/nFaHSNAzT0NnKz2MjhZVmcrpyd2Gp2QyISCfb1FbT82GMtXFj1wiHmPb3CixYmWGQUUh+I AvUqsevLA+WihgBUyaJq/vuDVM1/K9Un+w+Tz5vpeMidlIsTYhcsMhn0L9wlCjoucljvbDy/ 8C9L2DUdgi3XTa0ORKeflUhdL4gucWoAMrKX2nmPjBMKLgU7WLBc8AtV+84b9OWFML6NEyo4 4cP7cM/07VlJK53pqNg5cHtnWwjHcbpGkQvx6RUx6F1My3y52vM24rNUA3+ligVEgPYBuQEN BFXOJlcBCADAmcVUNTWT6yLWQHvxZ0o47KCP8OcLqD+67T0RCe6d0LP8GsWtrJdeDIQk+T+F xO7DolQPS6iQ6Ak2/lJaPX8L0BkEAiMuLCKFU6Bn3lFOkrQeKp3u05wCSV1iKnhg0UPji9V2 W5eNfy8F4ZQHpeGUGy+liGXlxqkeRVhLyevUqfU0WgNqAJpfhHSGpBgihUupmyUg7lfUPeRM DzAN1pIqoFuxnN+BRHdAecpsLcbR8sQddXmDg9BpSKozO/JyBmaS1RlquI8HERQoe6EynJhd 64aICHDfj61rp+/0jTIcevxIIAzW70IadoS/y3DVIkuhncgDBvGbF3aBtjrJVP+5ABEBAAGJ ASUEGAEIAA8FAlXOJlcCGwwFCRLMAwAACgkQ9AfbAGHVz0CbFwf9F/PXxQR9i4N0iipISYjU sxVdjJOM2TMut+ZZcQ6NSMvhZ0ogQxJ+iEQ5OjnIputKvPVd5U7WRh+4lF1lB/NQGrGZQ1ic alkj6ocscQyFwfib+xIe9w8TG1CVGkII7+TbS5pXHRxZH1niaRpoi/hYtgzkuOPp35jJyqT/ /ELbqQTDAWcqtJhzxKLE/ugcOMK520dJDeb6x2xVES+S5LXby0D4juZlvUj+1fwZu+7Io5+B bkhSVPb/QdOVTpnz7zWNyNw+OONo1aBUKkhq2UIByYXgORPFnbfMY7QWHcjpBVw9MgC4tGeF R4bv+1nAMMxKmb5VvQCExr0eFhJUAHAhVg== Message-ID: <11702e5c-4a4d-cf6f-1ad9-573c383eaee7@redhat.com> Date: Thu, 23 Apr 2020 12:54:36 +0200 User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:68.0) Gecko/20100101 Thunderbird/68.6.0 MIME-Version: 1.0 In-Reply-To: <20200422152129.167074-6-kwolf@redhat.com> X-Scanned-By: MIMEDefang 2.79 on 10.5.11.11 X-Mimecast-Spam-Score: 0 X-Mimecast-Originator: redhat.com Content-Type: multipart/signed; micalg=pgp-sha256; protocol="application/pgp-signature"; boundary="Bv6bwaMaW5u9jM55Ve3Zc7IUU692EDr1E" Received-SPF: pass client-ip=205.139.110.120; envelope-from=mreitz@redhat.com; helo=us-smtp-1.mimecast.com X-detected-operating-system: by eggs.gnu.org: First seen = 2020/04/23 05:42:05 X-ACL-Warn: Detected OS = Linux 2.2.x-3.x [generic] X-Received-From: 205.139.110.120 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: berto@igalia.com, vsementsov@virtuozzo.com, qemu-devel@nongnu.org Errors-To: qemu-devel-bounces+qemu-devel=archiver.kernel.org@nongnu.org Sender: "Qemu-devel" This is an OpenPGP/MIME signed message (RFC 4880 and 3156) --Bv6bwaMaW5u9jM55Ve3Zc7IUU692EDr1E Content-Type: multipart/mixed; boundary="sBnFL2KNFrJcpjMf6DEVlfCEjVmZJ6PIF" --sBnFL2KNFrJcpjMf6DEVlfCEjVmZJ6PIF Content-Type: text/plain; charset=utf-8 Content-Language: en-US Content-Transfer-Encoding: quoted-printable On 22.04.20 17:21, Kevin Wolf wrote: > The raw format driver can simply forward the flag and let its bs->file > child take care of actually providing the zeros. >=20 > Signed-off-by: Kevin Wolf > --- > block/raw-format.c | 4 +++- > 1 file changed, 3 insertions(+), 1 deletion(-) Reviewed-by: Max Reitz --sBnFL2KNFrJcpjMf6DEVlfCEjVmZJ6PIF-- --Bv6bwaMaW5u9jM55Ve3Zc7IUU692EDr1E Content-Type: application/pgp-signature; name="signature.asc" Content-Description: OpenPGP digital signature Content-Disposition: attachment; filename="signature.asc" -----BEGIN PGP SIGNATURE----- iQEzBAEBCAAdFiEEkb62CjDbPohX0Rgp9AfbAGHVz0AFAl6hc+wACgkQ9AfbAGHV z0Be+Qf+OTwhr3k9GsIw7qvWHFBYo/MiBsOQTV9oNRNIBxC5LpKAdgt0wZ+NIyhH 4LHXvjoqGVYC6yWnpFWOdmL6ygxK88F0nynSH5RSfugSXyl+HVVkG/HxBZ9WzfkY sIWioql5/0rt/v61RUCqEo2xIHZWXcvdVcWotyN/VURBp7xIauK+ITUybXTFiCsq vQTGKm9OBndk7a+JQ7GOPyMmOH/Iotaevx7IYosSxgXPMiGpXpZKeYfl8gsbG8TV g1MMmxkanr4o3fUrN41p4FuLHdwD6UQHZwwcY+7ydMZt3NzZAh/ZAi/W0qkePeOT r1B8shMuTZCBmuQ/SSsgwE7dSL6gPg== =JvOk -----END PGP SIGNATURE----- --Bv6bwaMaW5u9jM55Ve3Zc7IUU692EDr1E--