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From: Jackie Liu <liu.yun@linux.dev>
To: axboe@kernel.dk, yukuai@fnnas.com
Cc: linux-block@vger.kernel.org
Subject: [PATCH 04/10] block: convert partition sysfs show to sysfs_emit()
Date: Wed,  1 Apr 2026 15:07:10 +0800	[thread overview]
Message-ID: <20260401070716.991-5-liu.yun@linux.dev> (raw)
In-Reply-To: <20260401070716.991-1-liu.yun@linux.dev>

From: Jackie Liu <liuyun01@kylinos.cn>

Use sysfs_emit() instead of sprintf() for partition attribute
show functions.

Signed-off-by: Jackie Liu <liuyun01@kylinos.cn>
---
 block/partitions/core.c | 10 +++++-----
 1 file changed, 5 insertions(+), 5 deletions(-)

diff --git a/block/partitions/core.c b/block/partitions/core.c
index 740228750aaf..41b5c09d4551 100644
--- a/block/partitions/core.c
+++ b/block/partitions/core.c
@@ -177,31 +177,31 @@ static struct parsed_partitions *check_partition(struct gendisk *hd)
 static ssize_t part_partition_show(struct device *dev,
 				   struct device_attribute *attr, char *buf)
 {
-	return sprintf(buf, "%d\n", bdev_partno(dev_to_bdev(dev)));
+	return sysfs_emit(buf, "%d\n", bdev_partno(dev_to_bdev(dev)));
 }
 
 static ssize_t part_start_show(struct device *dev,
 			       struct device_attribute *attr, char *buf)
 {
-	return sprintf(buf, "%llu\n", dev_to_bdev(dev)->bd_start_sect);
+	return sysfs_emit(buf, "%llu\n", dev_to_bdev(dev)->bd_start_sect);
 }
 
 static ssize_t part_ro_show(struct device *dev,
 			    struct device_attribute *attr, char *buf)
 {
-	return sprintf(buf, "%d\n", bdev_read_only(dev_to_bdev(dev)));
+	return sysfs_emit(buf, "%d\n", bdev_read_only(dev_to_bdev(dev)));
 }
 
 static ssize_t part_alignment_offset_show(struct device *dev,
 					  struct device_attribute *attr, char *buf)
 {
-	return sprintf(buf, "%u\n", bdev_alignment_offset(dev_to_bdev(dev)));
+	return sysfs_emit(buf, "%u\n", bdev_alignment_offset(dev_to_bdev(dev)));
 }
 
 static ssize_t part_discard_alignment_show(struct device *dev,
 					   struct device_attribute *attr, char *buf)
 {
-	return sprintf(buf, "%u\n", bdev_discard_alignment(dev_to_bdev(dev)));
+	return sysfs_emit(buf, "%u\n", bdev_discard_alignment(dev_to_bdev(dev)));
 }
 
 static DEVICE_ATTR(partition, 0444, part_partition_show, NULL);
-- 
2.51.1


  parent reply	other threads:[~2026-04-01  7:08 UTC|newest]

Thread overview: 11+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2026-04-01  7:07 [PATCH 00/10] block: sysfs cleanup for deprecated API usage Jackie Liu
2026-04-01  7:07 ` [PATCH 01/10] block: convert to sysfs_emit() in blk_ia_range show() Jackie Liu
2026-04-01  7:07 ` [PATCH 02/10] block: convert blk-mq hw sysfs show to sysfs_emit/sysfs_emit_at Jackie Liu
2026-04-01  7:07 ` [PATCH 03/10] block: convert disk events " Jackie Liu
2026-04-01  7:07 ` Jackie Liu [this message]
2026-04-01  7:07 ` [PATCH 05/10] block: convert part_timeout_show() to sysfs_emit() Jackie Liu
2026-04-01  7:07 ` [PATCH 06/10] block: convert kyber latency show " Jackie Liu
2026-04-01  7:07 ` [PATCH 07/10] block: convert bfq_var_show() " Jackie Liu
2026-04-01  7:07 ` [PATCH 08/10] block: use kstrtol() instead of sscanf() in disk_events_poll_msecs_store() Jackie Liu
2026-04-01  7:07 ` [PATCH 09/10] block: replace simple_strtoul() with kstrtoint() in part_timeout_store() Jackie Liu
2026-04-01  7:07 ` [PATCH 10/10] block: replace sscanf() with kstrtoint() in part_fail_store() Jackie Liu

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