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From: Vladimir Sementsov-Ogievskiy To: qemu-block@nongnu.org Subject: [PATCH v2 06/17] block/io: support int64_t bytes in bdrv_aligned_pwritev() Date: Mon, 27 Apr 2020 11:23:14 +0300 Message-Id: <20200427082325.10414-7-vsementsov@virtuozzo.com> X-Mailer: git-send-email 2.21.0 In-Reply-To: <20200427082325.10414-1-vsementsov@virtuozzo.com> References: <20200427082325.10414-1-vsementsov@virtuozzo.com> Content-Transfer-Encoding: quoted-printable X-ClientProxiedBy: FR2P281CA0004.DEUP281.PROD.OUTLOOK.COM (2603:10a6:d10:a::14) To AM7PR08MB5494.eurprd08.prod.outlook.com (2603:10a6:20b:dc::15) MIME-Version: 1.0 X-MS-Exchange-MessageSentRepresentingType: 1 X-Mailer: git-send-email 2.21.0 X-Originating-IP: [185.215.60.182] X-MS-PublicTrafficType: Email X-MS-Office365-Filtering-Correlation-Id: 83c51d1d-88dc-46cf-4274-08d7ea845636 X-MS-TrafficTypeDiagnostic: AM7PR08MB5463: X-MS-Exchange-Transport-Forked: True X-Microsoft-Antispam-PRVS: X-MS-Oob-TLC-OOBClassifiers: OLM:608; X-Forefront-PRVS: 0386B406AA X-Forefront-Antispam-Report: CIP:255.255.255.255; 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envelope-from=vsementsov@virtuozzo.com; helo=EUR04-HE1-obe.outbound.protection.outlook.com X-detected-operating-system: by eggs.gnu.org: First seen = 2020/04/27 04:24:00 X-ACL-Warn: Detected OS = Windows NT kernel [generic] [fuzzy] X-Received-From: 40.107.7.127 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: kwolf@redhat.com, fam@euphon.net, integration@gluster.org, berto@igalia.com, pavel.dovgaluk@ispras.ru, dillaman@redhat.com, qemu-devel@nongnu.org, pl@kamp.de, ronniesahlberg@gmail.com, mreitz@redhat.com, den@openvz.org, sheepdog@lists.wpkg.org, vsementsov@virtuozzo.com, stefanha@redhat.com, namei.unix@gmail.com, pbonzini@redhat.com, sw@weilnetz.de, jsnow@redhat.com, ari@tuxera.com Errors-To: qemu-devel-bounces+importer=patchew.org@nongnu.org Sender: "Qemu-devel" X-ZohoMail-DKIM: pass (identity @virtuozzo.com) Content-Type: text/plain; charset="utf-8" We are generally moving to int64_t for both offset and bytes parameters on all io paths. Prepare bdrv_aligned_pwritev() now (and convert the dependencies: bdrv_co_write_req_prepare() and bdrv_co_write_req_finish() to signed type bytes) Signed-off-by: Vladimir Sementsov-Ogievskiy --- block/io.c | 12 +++++++----- 1 file changed, 7 insertions(+), 5 deletions(-) diff --git a/block/io.c b/block/io.c index c8c30e3699..fe19e09034 100644 --- a/block/io.c +++ b/block/io.c @@ -1854,7 +1854,7 @@ fail: } =20 static inline int coroutine_fn -bdrv_co_write_req_prepare(BdrvChild *child, int64_t offset, uint64_t bytes, +bdrv_co_write_req_prepare(BdrvChild *child, int64_t offset, int64_t bytes, BdrvTrackedRequest *req, int flags) { BlockDriverState *bs =3D child->bs; @@ -1906,7 +1906,7 @@ bdrv_co_write_req_prepare(BdrvChild *child, int64_t o= ffset, uint64_t bytes, } =20 static inline void coroutine_fn -bdrv_co_write_req_finish(BdrvChild *child, int64_t offset, uint64_t bytes, +bdrv_co_write_req_finish(BdrvChild *child, int64_t offset, int64_t bytes, BdrvTrackedRequest *req, int ret) { int64_t end_sector =3D DIV_ROUND_UP(offset + bytes, BDRV_SECTOR_SIZE); @@ -1948,14 +1948,14 @@ bdrv_co_write_req_finish(BdrvChild *child, int64_t = offset, uint64_t bytes, * after possibly fragmenting it. */ static int coroutine_fn bdrv_aligned_pwritev(BdrvChild *child, - BdrvTrackedRequest *req, int64_t offset, unsigned int bytes, + BdrvTrackedRequest *req, int64_t offset, int64_t bytes, int64_t align, QEMUIOVector *qiov, size_t qiov_offset, int flags) { BlockDriverState *bs =3D child->bs; BlockDriver *drv =3D bs->drv; int ret; =20 - uint64_t bytes_remaining =3D bytes; + int64_t bytes_remaining =3D bytes; int max_transfer; =20 if (!drv) { @@ -1967,6 +1967,8 @@ static int coroutine_fn bdrv_aligned_pwritev(BdrvChil= d *child, } =20 assert(is_power_of_2(align)); + assert(offset >=3D 0); + assert(bytes >=3D 0); assert((offset & (align - 1)) =3D=3D 0); assert((bytes & (align - 1)) =3D=3D 0); assert(!qiov || qiov_offset + bytes <=3D qiov->size); @@ -2067,7 +2069,7 @@ static int coroutine_fn bdrv_co_do_zero_pwritev(BdrvC= hild *child, assert(!bytes || (offset & (align - 1)) =3D=3D 0); if (bytes >=3D align) { /* Write the aligned part in the middle. */ - uint64_t aligned_bytes =3D bytes & ~(align - 1); + int64_t aligned_bytes =3D bytes & ~(align - 1); ret =3D bdrv_aligned_pwritev(child, req, offset, aligned_bytes, al= ign, NULL, 0, flags); if (ret < 0) { --=20 2.21.0