From: Changheun Lee <nanich.lee@samsung.com>
To: Johannes.Thumshirn@wdc.com, alex_y_xu@yahoo.ca,
asml.silence@gmail.com, axboe@kernel.dk, bgoncalv@redhat.com,
jejb@linux.ibm.com, martin.petersen@oracle.com,
cang@codeaurora.org, avri.altman@wdc.com,
alim.akhtar@samsung.com, bvanassche@acm.org,
damien.lemoal@wdc.com, gregkh@linuxfoundation.org,
hch@infradead.org, jaegeuk@kernel.org,
linux-block@vger.kernel.org, linux-scsi@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, yi.zhang@redhat.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 <nanich.lee@samsung.com>
Subject: [PATCH v12 0/3] bio: control bio max size
Date: Fri, 4 Jun 2021 14:03:21 +0900 [thread overview]
Message-ID: <20210604050324.28670-1-nanich.lee@samsung.com> (raw)
In-Reply-To: CGME20210604052157epcas1p2e5eebb52d08b06174696290e11fdd5a4@epcas1p2.samsung.com
bio size can grow up to 4GB after muli-page bvec has been enabled.
But sometimes large size of bio would lead to inefficient behaviors.
Control of bio max size will be helpful to improve inefficiency.
blk_queue_max_bio_bytes() is added to enable be set the max_bio_bytes in
each driver layer. And max_bio_bytes sysfs is added to show current
max_bio_bytes for each request queue.
bio size can be controlled via max_bio_bytes.
Changheun Lee (3):
bio: control bio max size
blk-sysfs: add max_bio_bytes
ufs: set max_bio_bytes with queue max sectors
Documentation/ABI/testing/sysfs-block | 10 ++++++++++
Documentation/block/queue-sysfs.rst | 7 +++++++
block/bio.c | 17 ++++++++++++++---
block/blk-settings.c | 19 +++++++++++++++++++
block/blk-sysfs.c | 7 +++++++
drivers/scsi/ufs/ufshcd.c | 5 +++++
include/linux/bio.h | 4 +++-
include/linux/blkdev.h | 3 +++
8 files changed, 68 insertions(+), 4 deletions(-)
--
2.29.0
next parent reply other threads:[~2021-06-04 5:22 UTC|newest]
Thread overview: 19+ messages / expand[flat|nested] mbox.gz Atom feed top
[not found] <CGME20210604052157epcas1p2e5eebb52d08b06174696290e11fdd5a4@epcas1p2.samsung.com>
2021-06-04 5:03 ` Changheun Lee [this message]
[not found] ` <CGME20210604052159epcas1p4370bee98aad882ab335dda1565db94fb@epcas1p4.samsung.com>
2021-06-04 5:03 ` [PATCH v12 1/3] bio: control bio max size Changheun Lee
2021-06-04 7:24 ` Damien Le Moal
[not found] ` <CGME20210604075331epcas1p13bb57f9ddfc7b112dec1ba8cf40fdc74@epcas1p1.samsung.com>
2021-06-04 7:34 ` Changheun Lee
2021-06-04 8:01 ` Damien Le Moal
[not found] ` <CGME20210604094209epcas1p26368dd18011bb2761529432cf2656a9f@epcas1p2.samsung.com>
2021-06-04 9:23 ` Changheun Lee
2021-06-04 14:52 ` Bart Van Assche
2021-06-07 6:35 ` Christoph Hellwig
2021-06-07 16:46 ` Bart Van Assche
2021-06-08 5:22 ` Christoph Hellwig
2021-06-07 6:32 ` Christoph Hellwig
[not found] ` <CGME20210607110122epcas1p4557bcbc7abac791f2557cc0d317214fd@epcas1p4.samsung.com>
2021-06-07 10:42 ` Changheun Lee
[not found] ` <CGME20210604052200epcas1p10754a3187476a0fcbfcc89c103a6d436@epcas1p1.samsung.com>
2021-06-04 5:03 ` [PATCH v12 2/3] blk-sysfs: add max_bio_bytes Changheun Lee
[not found] ` <CGME20210604052201epcas1p41a27660b20d70b7fc4295c8f131d33ce@epcas1p4.samsung.com>
2021-06-04 5:03 ` [PATCH v12 3/3] ufs: set max_bio_bytes with queue max sectors Changheun Lee
2021-06-04 16:11 ` Bart Van Assche
[not found] ` <CGME20210607094031epcas1p1f4a9ee01eaa4652ba0e8eb6a4964c952@epcas1p1.samsung.com>
2021-06-07 9:21 ` Changheun Lee
2021-06-04 6:41 ` [PATCH v12 0/3] bio: control bio max size Can Guo
2021-06-04 16:13 ` Bart Van Assche
[not found] ` <CGME20210607101609epcas1p392324f6d215e329d632a615c4b1adf4c@epcas1p3.samsung.com>
2021-06-07 9:57 ` Changheun Lee
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