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io-uring@vger.kernel.org, nilay@linux.ibm.com, ritesh.list@gmail.com, John Garry Subject: [PATCH v4 02/11] block: Call blkdev_dio_unaligned() from blkdev_direct_IO() Date: Mon, 19 Feb 2024 13:01:00 +0000 Message-Id: <20240219130109.341523-3-john.g.garry@oracle.com> X-Mailer: git-send-email 2.31.1 In-Reply-To: <20240219130109.341523-1-john.g.garry@oracle.com> References: <20240219130109.341523-1-john.g.garry@oracle.com> Content-Transfer-Encoding: 8bit Content-Type: text/plain X-ClientProxiedBy: SJ0PR03CA0084.namprd03.prod.outlook.com (2603:10b6:a03:331::29) To DM6PR10MB4313.namprd10.prod.outlook.com (2603:10b6:5:212::20) Precedence: bulk X-Mailing-List: io-uring@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 X-MS-PublicTrafficType: Email X-MS-TrafficTypeDiagnostic: DM6PR10MB4313:EE_|DS0PR10MB6894:EE_ X-MS-Office365-Filtering-Correlation-Id: 9d83d116-7507-4dc4-94d2-08dc314ae766 X-MS-Exchange-SenderADCheck: 1 X-MS-Exchange-AntiSpam-Relay: 0 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DM6PR10MB4313.namprd10.prod.outlook.com X-MS-Exchange-CrossTenant-AuthAs: Internal X-MS-Exchange-CrossTenant-OriginalArrivalTime: 19 Feb 2024 13:01:36.0480 (UTC) X-MS-Exchange-CrossTenant-FromEntityHeader: Hosted X-MS-Exchange-CrossTenant-Id: 4e2c6054-71cb-48f1-bd6c-3a9705aca71b X-MS-Exchange-CrossTenant-MailboxType: HOSTED X-MS-Exchange-CrossTenant-UserPrincipalName: 9pw9nuGcInqkxmxtu0vwaxEwcdOzwSwCCGMVw6mnEabV0X0xi5JEfW51aZmxWqrBylzPsYQVoPaOrWdiLXcAVg== X-MS-Exchange-Transport-CrossTenantHeadersStamped: DS0PR10MB6894 X-Proofpoint-Virus-Version: vendor=baseguard engine=ICAP:2.0.272,Aquarius:18.0.1011,Hydra:6.0.619,FMLib:17.11.176.26 definitions=2024-02-19_09,2024-02-19_01,2023-05-22_02 X-Proofpoint-Spam-Details: rule=notspam policy=default score=0 malwarescore=0 phishscore=0 suspectscore=0 mlxscore=0 bulkscore=0 spamscore=0 mlxlogscore=999 adultscore=0 classifier=spam adjust=0 reason=mlx scancount=1 engine=8.12.0-2311290000 definitions=main-2402190096 X-Proofpoint-GUID: o7h1jLOmm7D_1Y-Px-c6UCE2kVVPIIxJ X-Proofpoint-ORIG-GUID: o7h1jLOmm7D_1Y-Px-c6UCE2kVVPIIxJ blkdev_dio_unaligned() is called from __blkdev_direct_IO(), __blkdev_direct_IO_simple(), and __blkdev_direct_IO_async(), and all these are only called from blkdev_direct_IO(). Move the blkdev_dio_unaligned() call to the common callsite, blkdev_direct_IO(). Signed-off-by: John Garry --- block/fops.c | 14 +++++--------- 1 file changed, 5 insertions(+), 9 deletions(-) diff --git a/block/fops.c b/block/fops.c index 0cf8cf72cdfa..28382b4d097a 100644 --- a/block/fops.c +++ b/block/fops.c @@ -53,9 +53,6 @@ static ssize_t __blkdev_direct_IO_simple(struct kiocb *iocb, struct bio bio; ssize_t ret; - if (blkdev_dio_unaligned(bdev, pos, iter)) - return -EINVAL; - if (nr_pages <= DIO_INLINE_BIO_VECS) vecs = inline_vecs; else { @@ -171,9 +168,6 @@ static ssize_t __blkdev_direct_IO(struct kiocb *iocb, struct iov_iter *iter, loff_t pos = iocb->ki_pos; int ret = 0; - if (blkdev_dio_unaligned(bdev, pos, iter)) - return -EINVAL; - if (iocb->ki_flags & IOCB_ALLOC_CACHE) opf |= REQ_ALLOC_CACHE; bio = bio_alloc_bioset(bdev, nr_pages, opf, GFP_KERNEL, @@ -310,9 +304,6 @@ static ssize_t __blkdev_direct_IO_async(struct kiocb *iocb, loff_t pos = iocb->ki_pos; int ret = 0; - if (blkdev_dio_unaligned(bdev, pos, iter)) - return -EINVAL; - if (iocb->ki_flags & IOCB_ALLOC_CACHE) opf |= REQ_ALLOC_CACHE; bio = bio_alloc_bioset(bdev, nr_pages, opf, GFP_KERNEL, @@ -365,11 +356,16 @@ static ssize_t __blkdev_direct_IO_async(struct kiocb *iocb, static ssize_t blkdev_direct_IO(struct kiocb *iocb, struct iov_iter *iter) { + struct block_device *bdev = I_BDEV(iocb->ki_filp->f_mapping->host); + loff_t pos = iocb->ki_pos; unsigned int nr_pages; if (!iov_iter_count(iter)) return 0; + if (blkdev_dio_unaligned(bdev, pos, iter)) + return -EINVAL; + nr_pages = bio_iov_vecs_to_alloc(iter, BIO_MAX_VECS + 1); if (likely(nr_pages <= BIO_MAX_VECS)) { if (is_sync_kiocb(iocb)) -- 2.31.1