linux-kernel - [PATCH 2/4] nilfs2: add support for FS_IOC

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Message-Id: <20240815074408.5550-3-konishi.ryusuke@gmail.com>
Date: Thu, 15 Aug 2024 16:44:06 +0900
From: Ryusuke Konishi <konishi.ryusuke@...il.com>
To: Andrew Morton <akpm@...ux-foundation.org>
Cc: linux-nilfs@...r.kernel.org,
	linux-kernel@...r.kernel.org
Subject: [PATCH 2/4] nilfs2: add support for FS_IOC_GETFSSYSFSPATH

Use the standard helper super_set_sysfs_name_bdev() to give the sysfs
subpath of the filesystem for the FS_IOC_GETFSSYSFSPATH ioctl.

For nilfs2, it will output "nilfs2/<dev>".

Signed-off-by: Ryusuke Konishi <konishi.ryusuke@...il.com>
---
 fs/nilfs2/super.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/fs/nilfs2/super.c b/fs/nilfs2/super.c
index 167050b3ce7e..76e35e6773d1 100644
--- a/fs/nilfs2/super.c
+++ b/fs/nilfs2/super.c
@@ -1065,6 +1065,7 @@ nilfs_fill_super(struct super_block *sb, struct fs_context *fc)
 
 	super_set_uuid(sb, nilfs->ns_sbp[0]->s_uuid,
 		       sizeof(nilfs->ns_sbp[0]->s_uuid));
+	super_set_sysfs_name_bdev(sb);
 
 	cno = nilfs_last_cno(nilfs);
 	err = nilfs_attach_checkpoint(sb, cno, true, &fsroot);
-- 
2.34.1