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[160.39.33.242]) by smtp.gmail.com with ESMTPSA id d75a77b69052e-532e18fce9fsm2048421cf.15.2026.09.21.19.54.18 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Mon, 21 Sep 2026 19:54:18 -0700 (PDT) From: Tal Zussman Date: Mon, 21 Sep 2026 22:54:05 -0400 Subject: [PATCH v4 8/8] block: remove dead metadata handling from the async direct I/O path Precedence: bulk X-Mailing-List: linux-kernel@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: <20260921-blkdev-fixes-v4-8-e2801f71ede9@columbia.edu> References: <20260921-blkdev-fixes-v4-0-e2801f71ede9@columbia.edu> In-Reply-To: <20260921-blkdev-fixes-v4-0-e2801f71ede9@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, Tal Zussman X-Mailer: b4 0.17-dev-db0b7 X-Developer-Signature: v=1; a=ed25519-sha256; t=1790045650; l=1396; i=tz2294@columbia.edu; s=20250528; h=from:subject:message-id; bh=EbC+zxM1tqI8jGM5V6h5xGabP65wDxbe+0kLZNaqFJY=; b=yERiseFIyAnUCk63ZZni+vwp1NciaCnnL9jJ2tVTvoeYLsx2HpPUCDme8TFQIXwRyRoflEjN9 /H6pW6x2mioAhcEpOVrUEWzzjpeSQ8S6fovNVbXT91kBp32OLbKF0A0 X-Developer-Key: i=tz2294@columbia.edu; a=ed25519; pk=BIj5KdACscEOyAC0oIkeZqLB3L94fzBnDccEooxeM5Y= X-Proofpoint-ORIG-GUID: 9wAcukWwdLmRrDduQObIYTwORLalGYot X-Proofpoint-Spam-Info: AW1haW4tMjYwOTIyMDAzNyBTYWx0ZWRfXx/SaszXyO7wo 7ws7GujAI9mLaAoSJEVs68nGwTvfybM/A0Igj/qfbYEUpXmFeU8MfRfXOLHeapqq2jRE6sXdZnL KkEi0q8ziJN/n1VIqCAMY3Far8stptbe9Y7NMtP1lxgXSa7dc3aI X-Proofpoint-Spam-Details-Enc: AW1haW4tMjYwOTIyMDAzNyBTYWx0ZWRfX9B6Ef2FxzdTW xTMKGk+3lc3JMT2Dd4rUMLzQgl4a1aR7A8JaG2dD5OjrfX+JbvpvuCOlOYBjBFtB3zrUWOxF2yW UW7SVz72fDh8Yua+QAIEaN+CvyrJUBGJ+MRt/kn2jgaxXegit3kyvPwRKwV3Pl2mv58JeJH9SZx hNfO2ZmIxaVWO54qxIyIlhLqJC3Atjvs6RjT30XrvIV0WVy9iHt0CR7p2pTUX2F4kuysEmJiz6c 8+JFOy/ag9WqB+ZpL3SkiQaprryeD2RUi1jDe9/naB00r9kncaV/UJX6rhPgXO4gzJnzwgftylh I7tJk7mFNIFrR5eEFKte1hMSIzWwtSOszgLv7Omu5BlaIFaFkFiEQPe99nw2xsgDF9S/bYqqaZJ +BJQRaxblGymb3ePt21XgETSGL50Zn940TGKAA3ng4lmHf2SRsL/gig0YGkMJZ4QNz/qKcaqhED 7jEfLPyzKq7MId1oLAg== X-Authority-Analysis: v=2.4 cv=U/UHnuru c=1 sm=1 tr=0 ts=6ab1eddc cx=c_pps a=mPf7EqFMSY9/WdsSgAYMbA==:117 a=GaPK54s0Se3oFqK5NkZy0g==:17 a=IkcTkHD0fZMA:10 a=VdqzKS8jKosA:10 a=x7bEGLp0ZPQA:10 a=A0y_DWxS2BwA:10 a=VkNPw1HP01LnGYTKEx00:22 a=Da8U98TiO7q1upZEImrf:22 a=QOCMdifcju39GKoXhKua:22 a=VwQbUJbxAAAA:8 a=IE87Obj3e0A1gCLlgTsA:9 a=QEXdDO2ut3YA:10 a=dawVfQjAaf238kedN5IG:22 X-Proofpoint-GUID: 9wAcukWwdLmRrDduQObIYTwORLalGYot X-Proofpoint-Virus-Version: vendor=nai engine=6900 definitions=11912 signatures=596817 X-Proofpoint-Spam-Details: rule=outbound_notspam policy=outbound score=0 malwarescore=0 priorityscore=1501 phishscore=0 lowpriorityscore=10 impostorscore=10 bulkscore=10 adultscore=0 suspectscore=0 clxscore=1015 spamscore=0 classifier=typeunknown authscore=0 authtc= authcc= route=outbound adjust=0 reason=mlx scancount=1 engine=8.22.0-2609040000 definitions=main-2609220037 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 7f23778f6b81..55c2e606c662 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