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Mon, 12 Apr 2021 12:16:15 +0900 (KST) Received: from epsmtrp1.samsung.com (unknown [182.195.40.13]) by epcas1p3.samsung.com (KnoxPortal) with ESMTPA id 20210412031614epcas1p3fd234ea94ae348f8b8d2e3e179e195db~0-fBLydqs1287712877epcas1p3b; Mon, 12 Apr 2021 03:16:14 +0000 (GMT) Received: from epsmgms1p1new.samsung.com (unknown [182.195.42.41]) by epsmtrp1.samsung.com (KnoxPortal) with ESMTP id 20210412031614epsmtrp15cfb02b4b95db12bf8a7f2ee25f833ae~0-fBKgUq80525705257epsmtrp1y; Mon, 12 Apr 2021 03:16:14 +0000 (GMT) X-AuditID: b6c32a38-e4dff7000001585a-d8-6073bb7f76e3 Received: from epsmtip1.samsung.com ( [182.195.34.30]) by epsmgms1p1new.samsung.com (Symantec Messaging Gateway) with SMTP id 74.74.33967.E7BB3706; Mon, 12 Apr 2021 12:16:14 +0900 (KST) Received: from localhost.localdomain (unknown [10.253.99.105]) by epsmtip1.samsung.com (KnoxPortal) with ESMTPA id 20210412031614epsmtip101f3f4d3f7420afdd556089ebed864c0~0-fAzNJAu2610126101epsmtip1H; Mon, 12 Apr 2021 03:16:14 +0000 (GMT) From: Changheun Lee To: damien.lemoal@wdc.com, bvanassche@acm.org, Johannes.Thumshirn@wdc.com, asml.silence@gmail.com, axboe@kernel.dk, gregkh@linuxfoundation.org, hch@infradead.org, linux-block@vger.kernel.org, linux-kernel@vger.kernel.org, ming.lei@redhat.com, osandov@fb.com, patchwork-bot@kernel.org, tj@kernel.org, tom.leiming@gmail.com Cc: jisoo2146.oh@samsung.com, junho89.kim@samsung.com, mj0123.lee@samsung.com, seunghwan.hyun@samsung.com, sookwan7.kim@samsung.com, woosung2.lee@samsung.com, yt0928.kim@samsung.com, Changheun Lee Subject: [PATCH v6 0/3] limit bio max size Date: Mon, 12 Apr 2021 11:58:28 +0900 Message-Id: <20210412025831.31498-1-nanich.lee@samsung.com> X-Mailer: git-send-email 2.29.0 MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-Brightmail-Tracker: H4sIAAAAAAAAA01Ta1ATVxjt3Q27kRa6jRbuUEdwR1seEhIgcEWgzsjo2tQZhvpgOmMhhi0E Q5Jmk7bwR2woWqA8pIggoEMRIdahBqQ8SlsDFhG0nfIatIA8ChZEKAyIVaZNWGz5953znbPn ++69K8RFDwk3oUpjYPUahZomHAX1rV4S3xPNXKxkKWMLKjHXA3RlMIdAZ+ee4ujzU0sYMn1d Q6DO3HIMZY1/5oBWMoYwtDjCoZZ7Pqi7qYRA1nwThgprS3DUN9xFotahXgEaqcjD0d2OeQdU NrYb/X35JkCzy/0kut2Qj6OalqfEbhemu0fO5Jkek0xj8SDJ1FZ5M913jIzF/AXB/Fj6DcnM /tBLMNl1ZsAsWLYwp37KxCJffl8dmsAq4li9B6tRauNUmvgwWv5ezJ4YWZBE6ivdiYJpD40i iQ2jI96N9N2rUts2pT0+VqiNNipSwXG0X3ioXms0sB4JWs4QRrO6OLVOKtGJOUUSZ9TEi5Xa pBCpROIvsylj1QkX7g9guj7i07mKi2QquCHIABuEkAqEs+eq8AzgKBRRDQA2PmnBeDAPYO1k NcmDJQALckf/s1xNfyTgGy0Aroz1r6kWAJzovkHYVQS1A2bP3CPsjU1UBwaXr3QCO8CpMQB7 OtJXVRspb5g/2o7bawG1HRbWN5P22onaBUfHvgJ8njt8PpyF8/xrsKNofHUO3Mabrp9fHR1S 40LYVt6A84YIeK6kE+PrjXCqvY7kazf4Z046yRsyATSlXwA8yAWwYrJyzREA5xcWbA2hLcIL 1jT58fRW2PisFPDJzvDxYpaDXQIpJ3g6XcRLtsGutGH8Rdbk1ca1LzLw4dSj1RlE1FE4N9UF coF78bp9itftU/x/8EWAm4ELq+OS4llOqgtcf7MWsPrkvVEDKJ2ZE1sBJgRWAIU4vcnpWDIX K3KKUySnsHptjN6oZjkrkNlOOA93e12ptf0zGkOMVOYfEBCAAoOCg2QBtKvTMcmDGBEVrzCw x1lWx+pf+DDhBrdUTGq+Jli8O+fT+n3anZROqzM+ed/Vs6KlYOXX3/bsd6xOVR8lDx9iSrxC 9VjGpeChGa5xWkWX/5JzOeSv08GVURL3zW1FmQfro+VpH+x3PDHRLP5welh0wKh6Yq133bX1 ZwfPIxFlD5JXDs/T0TMjIc8vSSQJnxSMmCxhYeFVqeM7md4B5/LjA7q+xENjb06E5C9P949H qGehMvpIolyFZMK30RmlocaSfWt2QJkycLNt37bvot4q+7bH9MpLJ8uj/ikePNk0crswe6ha UyvTf1QqfpXYPmH025z4xo6DqWnyurOd4eddnnkq8d+pAzOCW5X7cq6jM91/qMXXiqLf8Wn/ 0p8WcAkKqTeu5xT/Ap3xmqZ7BAAA X-Brightmail-Tracker: H4sIAAAAAAAAA+NgFprMIsWRmVeSWpSXmKPExsWy7bCSnG7d7uIEg1PbJS3mrNrGaLH6bj+b xbQPP5ktWtu/MVk0L17PZnF6wiImi54nTawWf7vuMVl8fVhssfeWtsXlXXPYLA5NbmaymL55 DrPFtftn2C0O37vKYvFwyURmi3MnP7FazHvsYPFr+VFGi/c/rrNbnNoxmdli/d6fbA5iHpev eHtMbH7H7rFz1l12j80rtDwuny312LSqk81j/9w17B7v911l8+jbsorR4/MmOY/2A91MAdxR XDYpqTmZZalF+nYJXBnzb99kKrjGVvFhyQL2BsaDLF2MnBwSAiYSa9veANlcHEICuxkllt/r YoZISEkcP/GWtYuRA8gWljh8uBii5iOjxJdbbYwgNWwCOhJ9b2+xgSREBG4zSVzachRsErPA a0aJrseLwFYIC2hJTH50HGwqi4CqxPRtu9lBbF4Ba4lHj6cwQmyTl/hzv4cZIi4ocXLmE7Be ZqB489bZzBMY+WYhSc1CklrAyLSKUTK1oDg3PbfYsMAwL7Vcrzgxt7g0L10vOT93EyM43rQ0 dzBuX/VB7xAjEwfjIUYJDmYlEd6kyuIEId6UxMqq1KL8+KLSnNTiQ4zSHCxK4rwXuk7GCwmk J5akZqemFqQWwWSZODilGphiH9RFZLEFZ29OdnkYUnozWMBsXrnJufVVv+bbOh/6qVYou+zB g9qkfCsphzN3ufIago+a9Yucuil72nh204X15aeOH1KRVzlwYor7iXyJvEsp/+xeTTttKFh/ eW61w4Fps9iaTndrCsh3npu5ZdFxdtHgNV11x3dxuMpu6W4RELyWWPK2Ztup6fb+fgtyT+oE RzELH7u4pSb4nZH7+mkHP7NkL/x3TT7264dglX1/NZVr49YVzeFYd37qv8MLFXcXe++8ZhBc pL6vUe/H11WuIXvXNy+1fKKzcmqQ/NXGvcGzTt508E21WVMqcu3A49V/Fs47f3yRLQ//vtcc y3O7tT5KfGJeyiuxOfd045FXSizFGYmGWsxFxYkA1Q3TVCYDAAA= X-CMS-MailID: 20210412031614epcas1p3fd234ea94ae348f8b8d2e3e179e195db X-Msg-Generator: CA Content-Type: text/plain; charset="utf-8" X-Sendblock-Type: SVC_REQ_APPROVE CMS-TYPE: 101P DLP-Filter: Pass X-CFilter-Loop: Reflected X-CMS-RootMailID: 20210412031614epcas1p3fd234ea94ae348f8b8d2e3e179e195db References: Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org I found a inefficient behavior from multipage bvec. Large chunk DIO scenario is that. This patch series could be a solution to improve it. Changheun Lee (3): bio: limit bio max size ufs: set QUEUE_FLAG_LIMIT_BIO_SIZE bio: add limit_bio_size sysfs Documentation/ABI/testing/sysfs-block | 10 ++++++++++ Documentation/block/queue-sysfs.rst | 7 +++++++ block/bio.c | 13 ++++++++++++- block/blk-settings.c | 17 +++++++++++++++++ block/blk-sysfs.c | 3 +++ drivers/scsi/scsi_lib.c | 2 ++ drivers/scsi/ufs/ufshcd.c | 1 + include/linux/bio.h | 2 +- include/linux/blkdev.h | 4 ++++ include/scsi/scsi_host.h | 2 ++ 10 files changed, 59 insertions(+), 2 deletions(-) -- 2.29.0