nsfs: port to ns_ref_*() helpers

brauner · brauner · commit b3d8ff067950 · 2025-09-19T16:22:38.000+02:00
Stop accessing ns.count directly.

Reviewed-by: Jan Kara &lt;jack@suse.cz&gt;
Signed-off-by: Christian Brauner &lt;brauner@kernel.org&gt;
diff --git a/fs/nsfs.c b/fs/nsfs.c
@@ -492,7 +492,7 @@ static struct dentry *nsfs_fh_to_dentry(struct super_block *sb, struct fid *fh,
 		VFS_WARN_ON_ONCE(ns->ops->type != fid->ns_type);
 		VFS_WARN_ON_ONCE(ns->inum != fid->ns_inum);
 
-		if (!refcount_inc_not_zero(&ns->count))
+		if (!__ns_ref_get(ns))
 			return NULL;
 	}
 

Original file line number	Diff line number	Diff line change
`@@ -492,7 +492,7 @@ static struct dentry nsfs_fh_to_dentry(struct super_block sb, struct fid *fh,`
`492`	`492`	`VFS_WARN_ON_ONCE(ns->ops->type != fid->ns_type);`
`493`	`493`	`VFS_WARN_ON_ONCE(ns->inum != fid->ns_inum);`
`494`	`494`
`495`		`- if (!refcount_inc_not_zero(&ns->count))`
	`495`	`+ if (!__ns_ref_get(ns))`
`496`	`496`	`return NULL;`
`497`	`497`	`}`
`498`	`498`