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[4.53.155.98]) by smtp.gmail.com with ESMTPSA id 98e67ed59e1d1-3a0976ca5f9sm1331613a91.14.2026.09.23.16.57.06 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Wed, 23 Sep 2026 16:57:07 -0700 (PDT) From: Tal Zussman Date: Wed, 23 Sep 2026 19:56:42 -0400 Subject: [PATCH v5 9/9] block: remove dead metadata handling from the async direct I/O path Precedence: bulk X-Mailing-List: linux-block@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: 7bit Message-Id: <20260923-blkdev-fixes-v5-9-89e60d66eb38@columbia.edu> References: <20260923-blkdev-fixes-v5-0-89e60d66eb38@columbia.edu> In-Reply-To: <20260923-blkdev-fixes-v5-0-89e60d66eb38@columbia.edu> To: Jens Axboe , Christoph Hellwig , Johannes Thumshirn , Luis Chamberlain , Hannes Reinecke , "Matthew Wilcox (Oracle)" , John Garry , Christian Brauner , "Darrick J. Wong" , Keith Busch , "Martin K. Petersen" Cc: Shin'ichiro Kawasaki , linux-block@vger.kernel.org, linux-kernel@vger.kernel.org, linux-xfs@vger.kernel.org, linux-fsdevel@vger.kernel.org, Tal Zussman X-Mailer: b4 0.17-dev-db0b7 X-Developer-Signature: v=1; a=ed25519-sha256; t=1790207813; l=1396; i=tz2294@columbia.edu; s=20250528; h=from:subject:message-id; bh=YMDQDXgHvisSOsY3WQrY2kVt6FOq3O9Ypoh2P+vxzKE=; b=sPILe/kyUbp0UCL4bz6D402nDcKVbwLmg2pPSjHxEY9K3xV0BuZybj9/lGnB5Pvf23U4M1YB2 0anpPrFDTkYCwMc6vi4Kax3gcCsgrwudHvLW7rNxmggYFs8LnnxxPGg X-Developer-Key: i=tz2294@columbia.edu; a=ed25519; pk=BIj5KdACscEOyAC0oIkeZqLB3L94fzBnDccEooxeM5Y= X-Proofpoint-Spam-Info: AW1haW4tMjYwOTIzMDEwMCBTYWx0ZWRfX+z1nJHimARE1 vebB3qmdvFPWMCzNR/UiVEjBzvlq/u35fbl0pOfAho0mIOkyobSpS/v5TCsh4sklJ/Ep4AlOwPG ro/8qk+SxiiiEwtSfaBM3fmpZcPPf7iXgTsQUrAW2+E2+aRyuy7U X-Proofpoint-ORIG-GUID: wCoWY-i4JF4CjHc6iXMSVpRWbKV3jU4M X-Proofpoint-Spam-Details-Enc: AW1haW4tMjYwOTIzMDEwMCBTYWx0ZWRfX/j/zleS/GYEE uoGKGobeukS6TGVqVSVa00LRUPw8Xn2y4TzytZE/6EqIJKrzbkvMCjg1M/kS+JCob2PfsI3VYIr ltbH14zDkG5UUcGstLHKnTfD38aB7Sr0iLRrts3iTUJLPIe6r6GJDTmiywXzb5qBapo9xd2daHv W0bBnGoTq54upfb99+0gwvF76FtkJeJsisx0pCUDCwqxmS9HstQhbyJVhVhLVRDfeva35pQn/p/ l+0RVprUjHbuMnNHVXTULjl6HkXqVVvzEwuXmZ1Ns2ETXn5vyozcpVYNkpooaopjzOsbX9TLr82 kT3wnTstPr7GzcTWgB19+L165l7tEUIbSVKO5Ikr8gYTNjoTkCLunk9SZIfCQg+Jm1/L4dKY/kx wHIOoEImGyjhlQVO6ORXFPCYf/4B84vF3JMMiEPKHBdQC0r4rlJFn8yn9emeiAW+oOI3Pn8F3Na 7a1/AKg/zh0gNBumFJw== X-Authority-Analysis: v=2.4 cv=D6nSufRj c=1 sm=1 tr=0 ts=6ab46755 cx=c_pps a=0uOsjrqzRL749jD1oC5vDA==:117 a=6aZ3Ysb2zzbY2sELL/OBJw==:17 a=IkcTkHD0fZMA:10 a=VdqzKS8jKosA:10 a=x7bEGLp0ZPQA:10 a=A0y_DWxS2BwA:10 a=VkNPw1HP01LnGYTKEx00:22 a=Da8U98TiO7q1upZEImrf:22 a=usPcmh10W0ubT8QP8_c3:22 a=VwQbUJbxAAAA:8 a=IE87Obj3e0A1gCLlgTsA:9 a=QEXdDO2ut3YA:10 a=mQ_c8vxmzFEMiUWkPHU9:22 X-Proofpoint-GUID: wCoWY-i4JF4CjHc6iXMSVpRWbKV3jU4M X-Proofpoint-Virus-Version: vendor=nai engine=6900 definitions=11914 signatures=596817 X-Proofpoint-Spam-Details: rule=outbound_notspam policy=outbound score=0 spamscore=0 phishscore=0 bulkscore=10 clxscore=1015 adultscore=0 priorityscore=1501 malwarescore=0 impostorscore=10 suspectscore=0 lowpriorityscore=10 classifier=typeunknown authscore=0 authtc= authcc= route=outbound adjust=0 reason=mlx scancount=1 engine=8.22.0-2609040000 definitions=main-2609230100 Since commit 2729a60bbfb9 ("block: don't silently ignore metadata for sync read/write"), blkdev_direct_IO() sends every IOCB_HAS_METADATA request to __blkdev_direct_IO(). Remove the now unreachable metadata mapping in __blkdev_direct_IO_async() and the unmap in its completion handler. No functional change. Assisted-by: Claude:claude-fable-5 Reviewed-by: Christoph Hellwig Reviewed-by: Hannes Reinecke Signed-off-by: Tal Zussman --- block/fops.c | 10 ---------- 1 file changed, 10 deletions(-) diff --git a/block/fops.c b/block/fops.c index 59af4e808204..b13e8f83ff82 100644 --- a/block/fops.c +++ b/block/fops.c @@ -306,9 +306,6 @@ static void blkdev_bio_end_io_async(struct bio *bio) ret = blk_status_to_errno(bio->bi_status); } - if (bio_integrity(bio)) - bio_integrity_unmap_user(bio); - iocb->ki_complete(iocb, ret); if (dio->flags & DIO_SHOULD_DIRTY) { @@ -370,13 +367,6 @@ static ssize_t __blkdev_direct_IO_async(struct kiocb *iocb, task_io_account_write(bio->bi_iter.bi_size); } - if (iocb->ki_flags & IOCB_HAS_METADATA) { - ret = bio_integrity_map_iter(bio, iocb->private); - WRITE_ONCE(iocb->private, NULL); - if (unlikely(ret)) - goto out_bio_put; - } - if (iocb->ki_flags & IOCB_HIPRI) { bio->bi_opf |= REQ_POLLED; submit_bio(bio); -- 2.39.5