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btrfs: sysfs: convert remaining scnprintf to sysfs_emit

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The sysfs_emit is the safe API for writing to the sysfs files,
previously converted from scnprintf, there's one left to do in
btrfs_read_policy_show.

Reviewed-by: Johannes Thumshirn <johannes.thumshirn@wdc.com>
Reviewed-by: Josef Bacik <josef@toxicpanda.com>
Signed-off-by: David Sterba <dsterba@suse.com>
This commit is contained in:
David Sterba 2022-09-30 17:23:01 +02:00
parent 5a75034e71
commit 467761f904
1 changed files with 3 additions and 3 deletions
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6
fs/btrfs/sysfs.c
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@ -1160,16 +1160,16 @@ static ssize_t btrfs_read_policy_show(struct kobject *kobj,
for (i = 0; i < BTRFS_NR_READ_POLICY; i++) {
if (fs_devices->read_policy == i)
ret += scnprintf(buf + ret, PAGE_SIZE - ret, "%s[%s]",
ret += sysfs_emit_at(buf, ret, "%s[%s]",
(ret == 0 ? "" : " "),
btrfs_read_policy_name[i]);
else
ret += scnprintf(buf + ret, PAGE_SIZE - ret, "%s%s",
ret += sysfs_emit_at(buf, ret, "%s%s",
(ret == 0 ? "" : " "),
btrfs_read_policy_name[i]);
}
ret += scnprintf(buf + ret, PAGE_SIZE - ret, "\n");
ret += sysfs_emit_at(buf, ret, "\n");
return ret;
}