Unverified Commit 6b053576 authored by Christian Brauner's avatar Christian Brauner
Browse files

ns: add __ns_ref_read() 

Implement ns_ref_read() the same way as ns_ref_{get,put}().
No point in making that any more special or different from the other
helpers.

Link: https://patch.msgid.link/20251029-work-namespace-nstree-listns-v4-9-2e6f823ebdc0@kernel.org


Tested-by: default avatar <syzbot@syzkaller.appspotmail.com>
Reviewed-by: default avatarJeff Layton <jlayton@kernel.org>
Signed-off-by: default avatarChristian Brauner <brauner@kernel.org>
parent 3dd50c58

include/linux/ns_common.h

+6 −1
Original line number Diff line number Diff line
@@ -154,7 +154,12 @@ static __always_inline __must_check bool __ns_ref_get(struct ns_common *ns) 
	return refcount_inc_not_zero(&ns->__ns_ref);

}



#define ns_ref_read(__ns) refcount_read(&to_ns_common((__ns))->__ns_ref)

static __always_inline __must_check int __ns_ref_read(const struct ns_common *ns)

{

	return refcount_read(&ns->__ns_ref);

}



#define ns_ref_read(__ns) __ns_ref_read(to_ns_common((__ns)))

#define ns_ref_inc(__ns) refcount_inc(&to_ns_common((__ns))->__ns_ref)

#define ns_ref_get(__ns) __ns_ref_get(to_ns_common((__ns)))

#define ns_ref_put(__ns) __ns_ref_put(to_ns_common((__ns)))