From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from mailout2.samsung.com (mailout2.samsung.com [203.254.224.25]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 39D3D48EBF3 for ; Mon, 21 Sep 2026 09:32:48 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=203.254.224.25 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1789983170; cv=none; b=R5RuzcNejl15AxVwfQiKUx7L68v4sIOkOOEM+fNx8b4ZPgjirmNwF5TQOpNgrss3awvIaiVMny8q/4RWT700+7+divRbp5xY9CzMHb/86lf4YsoEii3+j+qJpEbYDJmyPfvn8X077vMlA8yz1R45AuVtIJ+Jam3SlBFigyS106Q= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1789983170; c=relaxed/simple; bh=KkrNHFuWda4WDK3in+nNei1fA3IaX7jNBbpmewN+b+I=; h=From:To:Cc:Subject:Date:Message-Id:In-Reply-To:MIME-Version: Content-Type:References; b=h88x84zaGRJ1AQrVmBuO1yzE3ssAaG/PXnfv9AQrYwThx/k5utN7JBugFiNkzvSOzGYxVNjCLvLY0IEoBIyMFscBLA9I0WaKL9b8RbBNyQJhfoaKixabyRUHk9KCLuxncYNM1HHzCgJOYEseeVd7QSwStFjUplwCnIJh25s+k8E= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=samsung.com; spf=pass smtp.mailfrom=samsung.com; dkim=pass (1024-bit key) header.d=samsung.com header.i=@samsung.com header.b=BVOsXIwR; arc=none smtp.client-ip=203.254.224.25 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=samsung.com Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=samsung.com Authentication-Results: smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=samsung.com header.i=@samsung.com header.b="BVOsXIwR" Received: from epcas5p4.samsung.com (unknown [182.195.41.42]) by mailout2.samsung.com (KnoxPortal) with ESMTP id 20260921093246epoutp02460289bfab75ce5433decdf338d38749~XTDS1iiag1015410154epoutp021 for ; Mon, 21 Sep 2026 09:32:46 +0000 (GMT) DKIM-Filter: OpenDKIM Filter v2.11.0 mailout2.samsung.com 20260921093246epoutp02460289bfab75ce5433decdf338d38749~XTDS1iiag1015410154epoutp021 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=samsung.com; s=mail20170921; t=1789983166; bh=b3EmipzCDeygsKO8nKf/pwotVRZs32xx4eqUrlDTM9E=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=BVOsXIwRURdJPtu10W6SDoTgjP9endUc+2n2amfbckBo0LfbOFR7tHeDiDkgbXCb3 8xPdFe7ra7gZFRaEFN1i/pRe+MprdWhqFtZe159phqaZUwpkFidWg2NRnOzG3H8AGN fHiMtrxd37GysWVF0MdRKee3Zhj/Ry+eHCtXCDwA= Received: from epsnrtp02.localdomain (unknown [182.195.42.154]) by epcas5p3.samsung.com (KnoxPortal) with ESMTPS id 20260921093245epcas5p3f1f51b1abf75e695c8a6c654bdae6942~XTDR9OSrw2335623356epcas5p33; Mon, 21 Sep 2026 09:32:45 +0000 (GMT) Received: from epcas5p3.samsung.com (unknown [182.195.38.91]) by epsnrtp02.localdomain (Postfix) with ESMTP id 4hpJ183lJ1z2SSKd; Mon, 21 Sep 2026 09:32:44 +0000 (GMT) Received: from epsmtip1.samsung.com (unknown [182.195.34.30]) by epcas5p4.samsung.com (KnoxPortal) with ESMTPA id 20260921093244epcas5p4adc575cb555ea3d0005fb9d147452cea~XTDQ66yOG0763107631epcas5p4X; Mon, 21 Sep 2026 09:32:44 +0000 (GMT) Received: from localhost.localdomain (unknown [107.99.41.245]) by epsmtip1.samsung.com (KnoxPortal) with ESMTPA id 20260921093242epsmtip1b4c0cdb0b6ac8613c40c37ef272f1a72~XTDPQZ6Np0536305363epsmtip1V; Mon, 21 Sep 2026 09:32:42 +0000 (GMT) From: Kanchan Joshi To: brauner@kernel.org, hch@lst.de, djwong@kernel.org, dgc@kernel.org, cem@kernel.org, jack@suse.cz, axboe@kernel.dk, kbusch@kernel.org Cc: linux-xfs@vger.kernel.org, linux-fsdevel@vger.kernel.org, gost.dev@samsung.com, Kanchan Joshi , Anuj Gupta Subject: [PATCH v5 7/8] iomap: introduce and propagate write_stream Date: Mon, 21 Sep 2026 15:01:46 +0530 Message-Id: <20260921093147.59935-8-joshi.k@samsung.com> X-Mailer: git-send-email 2.25.1 In-Reply-To: <20260921093147.59935-1-joshi.k@samsung.com> Precedence: bulk X-Mailing-List: linux-fsdevel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-CMS-MailID: 20260921093244epcas5p4adc575cb555ea3d0005fb9d147452cea X-Msg-Generator: CA Content-Type: text/plain; charset="utf-8" CMS-TYPE: 105P cpgsPolicy: CPGSC10-542,Y X-CFilter-Loop: Reflected X-CMS-RootMailID: 20260921093244epcas5p4adc575cb555ea3d0005fb9d147452cea References: <20260921093147.59935-1-joshi.k@samsung.com> Add a new write_stream field to struct iomap. Propagate write_stream from iomap to bio in both direct I/O and buffered writeback paths. Reviewed-by: Christoph Hellwig Signed-off-by: Kanchan Joshi Signed-off-by: Anuj Gupta --- fs/iomap/direct-io.c | 1 + fs/iomap/ioend.c | 3 +++ include/linux/iomap.h | 1 + 3 files changed, 5 insertions(+) diff --git a/fs/iomap/direct-io.c b/fs/iomap/direct-io.c index 8b4039d16ce8..f406a7bc8804 100644 --- a/fs/iomap/direct-io.c +++ b/fs/iomap/direct-io.c @@ -349,6 +349,7 @@ static ssize_t iomap_dio_bio_iter_one(struct iomap_iter *iter, fscrypt_set_bio_crypt_ctx(bio, iter->inode, pos, GFP_KERNEL); bio->bi_iter.bi_sector = iomap_sector(&iter->iomap, pos); bio->bi_write_hint = iter->inode->i_write_hint; + bio->bi_write_stream = iter->iomap.write_stream; bio->bi_ioprio = dio->iocb->ki_ioprio; bio->bi_private = dio; bio->bi_end_io = iomap_dio_bio_end_io; diff --git a/fs/iomap/ioend.c b/fs/iomap/ioend.c index 7bbbb417f915..31a229c12b13 100644 --- a/fs/iomap/ioend.c +++ b/fs/iomap/ioend.c @@ -166,6 +166,7 @@ static struct iomap_ioend *iomap_alloc_ioend(struct iomap_writepage_ctx *wpc, GFP_NOFS, &iomap_ioend_bioset); bio->bi_iter.bi_sector = iomap_sector(&wpc->iomap, pos); bio->bi_write_hint = wpc->inode->i_write_hint; + bio->bi_write_stream = wpc->iomap.write_stream; wbc_init_bio(wpc->wbc, bio); wpc->nr_folios = 0; return iomap_init_ioend(wpc->inode, bio, pos, ioend_flags); @@ -189,6 +190,8 @@ static bool iomap_can_add_to_ioend(struct iomap_writepage_ctx *wpc, loff_t pos, if (!(wpc->iomap.flags & IOMAP_F_ANON_WRITE) && iomap_sector(&wpc->iomap, pos) != bio_end_sector(&ioend->io_bio)) return false; + if (wpc->iomap.write_stream != ioend->io_bio.bi_write_stream) + return false; /* * Limit ioend bio chain lengths to minimise IO completion latency. This * also prevents long tight loops ending page writeback on all the diff --git a/include/linux/iomap.h b/include/linux/iomap.h index bc7ae6327dbf..f923778f08bd 100644 --- a/include/linux/iomap.h +++ b/include/linux/iomap.h @@ -133,6 +133,7 @@ struct iomap { u64 length; /* length of mapping, bytes */ u16 type; /* type of mapping */ u16 flags; /* flags for mapping */ + u16 write_stream; /* write stream for I/O */ struct block_device *bdev; /* block device for I/O */ struct dax_device *dax_dev; /* dax_dev for dax operations */ void *inline_data; -- 2.25.1