From: Changheun Lee <nanich.lee@samsung.com>
To: gregkh@linuxfoundation.org
Cc: Johannes.Thumshirn@wdc.com, asml.silence@gmail.com,
axboe@kernel.dk, damien.lemoal@wdc.com, hch@infradead.org,
jisoo2146.oh@samsung.com, junho89.kim@samsung.com,
linux-block@vger.kernel.org, linux-kernel@vger.kernel.org,
ming.lei@redhat.com, mj0123.lee@samsung.com,
nanich.lee@samsung.com, osandov@fb.com, patchwork-bot@kernel.org,
seunghwan.hyun@samsung.com, sookwan7.kim@samsung.com,
tj@kernel.org, tom.leiming@gmail.com, woosung2.lee@samsung.com,
yt0928.kim@samsung.com
Subject: [PATCH v4 2/2] bio: add limit_bio_size sysfs
Date: Wed, 3 Feb 2021 18:22:47 +0900 [thread overview]
Message-ID: <20210203092247.29258-1-nanich.lee@samsung.com> (raw)
In-Reply-To: <YBpmQhqx4pvUh//a@kroah.com>
Add limit_bio_size block sysfs node to limit bio size.
Queue flag QUEUE_FLAG_LIMIT_BIO_SIZE will be set if limit_bio_size is set.
And bio max size will be limited by queue max sectors via
QUEUE_FLAG_LIMIT_BIO_SIZE set.
Signed-off-by: Changheun Lee <nanich.lee@samsung.com>
---
block/blk-sysfs.c | 3 +++
1 file changed, 3 insertions(+)
diff --git a/block/blk-sysfs.c b/block/blk-sysfs.c
index b513f1683af0..840d97f427e6 100644
--- a/block/blk-sysfs.c
+++ b/block/blk-sysfs.c
@@ -288,6 +288,7 @@ QUEUE_SYSFS_BIT_FNS(nonrot, NONROT, 1);
QUEUE_SYSFS_BIT_FNS(random, ADD_RANDOM, 0);
QUEUE_SYSFS_BIT_FNS(iostats, IO_STAT, 0);
QUEUE_SYSFS_BIT_FNS(stable_writes, STABLE_WRITES, 0);
+QUEUE_SYSFS_BIT_FNS(limit_bio_size, LIMIT_BIO_SIZE, 0);
#undef QUEUE_SYSFS_BIT_FNS
static ssize_t queue_zoned_show(struct request_queue *q, char *page)
@@ -615,6 +616,7 @@ QUEUE_RW_ENTRY(queue_nonrot, "rotational");
QUEUE_RW_ENTRY(queue_iostats, "iostats");
QUEUE_RW_ENTRY(queue_random, "add_random");
QUEUE_RW_ENTRY(queue_stable_writes, "stable_writes");
+QUEUE_RW_ENTRY(queue_limit_bio_size, "limit_bio_size");
static struct attribute *queue_attrs[] = {
&queue_requests_entry.attr,
@@ -648,6 +650,7 @@ static struct attribute *queue_attrs[] = {
&queue_rq_affinity_entry.attr,
&queue_iostats_entry.attr,
&queue_stable_writes_entry.attr,
+ &queue_limit_bio_size_entry.attr,
&queue_random_entry.attr,
&queue_poll_entry.attr,
&queue_wc_entry.attr,
--
2.28.0
next prev parent reply other threads:[~2021-02-03 9:39 UTC|newest]
Thread overview: 13+ messages / expand[flat|nested] mbox.gz Atom feed top
[not found] <CGME20210129040447epcas1p4531f0bf1ddebf0b469af87e85199cc43@epcas1p4.samsung.com>
2021-01-29 3:49 ` [PATCH v4 1/2] bio: limit bio max size Changheun Lee
[not found] ` <CGME20210129040448epcas1p44da94c82ac4fb82d77c452bda56d6b09@epcas1p4.samsung.com>
2021-01-29 3:49 ` [PATCH v4 2/2] bio: add limit_bio_size sysfs Changheun Lee
2021-02-03 9:00 ` Greg KH
[not found] ` <CGME20210203093835epcas1p2e86a35ba3012882950abc7013cae59b9@epcas1p2.samsung.com>
2021-02-03 9:22 ` Changheun Lee [this message]
2021-02-03 10:06 ` Greg KH
[not found] ` <CGME20210203113650epcas1p2ea64df5b6349975fa92c1605edc92961@epcas1p2.samsung.com>
2021-02-03 11:21 ` [PATCH " Changheun Lee
2021-02-03 13:03 ` Greg KH
2021-01-29 7:23 ` [PATCH v4 1/2] bio: limit bio max size Ming Lei
[not found] ` <CGME20210201030830epcas1p402e8a088fb16af9fbbb130b152e097f1@epcas1p4.samsung.com>
2021-02-01 2:52 ` Changheun Lee
2021-02-01 7:14 ` Ming Lei
[not found] ` <CGME20210202042747epcas1p2054df120098b3130cb104cf8e4731797@epcas1p2.samsung.com>
2021-02-02 4:12 ` Changheun Lee
2021-02-03 3:40 ` Ming Lei
[not found] ` <CGME20210203054543epcas1p454a7520710a1ae066237375691db90fd@epcas1p4.samsung.com>
2021-02-03 5:30 ` Changheun Lee
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