[PATCH -next] zonefs: add support for FS_IOC_GETFSSYSFSPATH

[Liao Chen <liaochen4@huawei.com>]

FS_IOC_GETFSSYSFSPATH ioctl expects sysfs sub-path of a filesystem, the
format can be "$FSTYP/$SYSFS_IDENTIFIER" under /sys/fs, it can helps to
standardizes exporting sysfs datas across filesystems.

This patch wires up FS_IOC_GETFSSYSFSPATH for zonefs, it will output
"zonefs/<dev>".

Signed-off-by: Liao Chen <liaochen4@huawei.com>
---
 fs/zonefs/super.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/fs/zonefs/super.c b/fs/zonefs/super.c
index faf1eb87895d..e180daa39578 100644
--- a/fs/zonefs/super.c
+++ b/fs/zonefs/super.c
@@ -1262,6 +1262,7 @@ static int zonefs_fill_super(struct super_block *sb, struct fs_context *fc)
 	sb->s_maxbytes = 0;
 	sb->s_op = &zonefs_sops;
 	sb->s_time_gran	= 1;
+	super_set_sysfs_name_id(sb);
 
 	/*
 	 * The block size is set to the device zone write granularity to ensure
-- 
2.34.1