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erofs: convert to use super_set_uuid to support for FS_IOC_GETFSUUID

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FS_IOC_GETFSUUID ioctl exposes the uuid of a filesystem. To support
the ioctl, init sb->s_uuid with super_set_uuid().

Signed-off-by: Huang Xiaojia <huangxiaojia2@huawei.com>
Reviewed-by: Gao Xiang <hsiangkao@linux.alibaba.com>
Reviewed-by: Chao Yu <chao@kernel.org>
Link: https://lore.kernel.org/r/20240624063704.2476070-1-huangxiaojia2@huawei.com
Signed-off-by: Gao Xiang <hsiangkao@linux.alibaba.com>
This commit is contained in:
Huang Xiaojia 2024-06-24 14:37:04 +08:00 committed by Gao Xiang
parent 9d01f6f6d8
commit cc69a681b2
1 changed files with 1 additions and 1 deletions
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2
fs/erofs/super.c
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@ -343,7 +343,7 @@ static int erofs_read_superblock(struct super_block *sb)
sbi->build_time = le64_to_cpu(dsb->build_time);
sbi->build_time_nsec = le32_to_cpu(dsb->build_time_nsec);
memcpy(&sb->s_uuid, dsb->uuid, sizeof(dsb->uuid));
super_set_uuid(sb, (void *)dsb->uuid, sizeof(dsb->uuid));
ret = strscpy(sbi->volume_name, dsb->volume_name,
sizeof(dsb->volume_name));