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Wed, 3 May 2023 18:39:32 +0000 Received: from DM6PR10MB4313.namprd10.prod.outlook.com ([fe80::8456:ba59:80ec:d804]) by DM6PR10MB4313.namprd10.prod.outlook.com ([fe80::8456:ba59:80ec:d804%7]) with mapi id 15.20.6340.031; Wed, 3 May 2023 18:39:32 +0000 From: John Garry To: axboe@kernel.dk, kbusch@kernel.org, hch@lst.de, sagi@grimberg.me, martin.petersen@oracle.com, djwong@kernel.org, viro@zeniv.linux.org.uk, brauner@kernel.org, dchinner@redhat.com, jejb@linux.ibm.com Cc: linux-block@vger.kernel.org, linux-kernel@vger.kernel.org, linux-nvme@lists.infradead.org, linux-scsi@vger.kernel.org, linux-xfs@vger.kernel.org, linux-fsdevel@vger.kernel.org, linux-security-module@vger.kernel.org, paul@paul-moore.com, jmorris@namei.org, serge@hallyn.com, John Garry Subject: [PATCH RFC 03/16] xfs: Support atomic write for statx Date: Wed, 3 May 2023 18:38:08 +0000 Message-Id: <20230503183821.1473305-4-john.g.garry@oracle.com> X-Mailer: git-send-email 2.31.1 In-Reply-To: <20230503183821.1473305-1-john.g.garry@oracle.com> References: <20230503183821.1473305-1-john.g.garry@oracle.com> X-ClientProxiedBy: DS7PR05CA0096.namprd05.prod.outlook.com (2603:10b6:8:56::28) To DM6PR10MB4313.namprd10.prod.outlook.com (2603:10b6:5:212::20) MIME-Version: 1.0 X-MS-PublicTrafficType: Email X-MS-TrafficTypeDiagnostic: DM6PR10MB4313:EE_|IA1PR10MB6171:EE_ X-MS-Office365-Filtering-Correlation-Id: 0402ffc9-e9d1-489e-0f70-08db4c05bc35 X-MS-Exchange-SenderADCheck: 1 X-MS-Exchange-AntiSpam-Relay: 0 X-Microsoft-Antispam: BCL:0; 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Darrick Wong originally authored this change. Signed-off-by: John Garry --- fs/xfs/xfs_iops.c | 10 ++++++++++ 1 file changed, 10 insertions(+) diff --git a/fs/xfs/xfs_iops.c b/fs/xfs/xfs_iops.c index 24718adb3c16..e542077704aa 100644 --- a/fs/xfs/xfs_iops.c +++ b/fs/xfs/xfs_iops.c @@ -614,6 +614,16 @@ xfs_vn_getattr( stat->dio_mem_align = bdev_dma_alignment(bdev) + 1; stat->dio_offset_align = bdev_logical_block_size(bdev); } + if (request_mask & STATX_WRITE_ATOMIC) { + struct xfs_buftarg *target = xfs_inode_buftarg(ip); + struct block_device *bdev = target->bt_bdev; + + stat->atomic_write_unit_min = queue_atomic_write_unit_min(bdev->bd_queue); + stat->atomic_write_unit_max = queue_atomic_write_unit_max(bdev->bd_queue); + stat->attributes |= STATX_ATTR_WRITE_ATOMIC; + stat->attributes_mask |= STATX_ATTR_WRITE_ATOMIC; + stat->result_mask |= STATX_WRITE_ATOMIC; + } fallthrough; default: stat->blksize = xfs_stat_blksize(ip);