netdev - [RFC v4 06/18] fs: Constify path_is

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Message-Id: <20161026065654.19166-7-mic@digikod.net>
Date:   Wed, 26 Oct 2016 08:56:42 +0200
From:   Mickaël Salaün <mic@...ikod.net>
To:     linux-kernel@...r.kernel.org
Cc:     Mickaël Salaün <mic@...ikod.net>,
        Alexei Starovoitov <ast@...nel.org>,
        Andy Lutomirski <luto@...capital.net>,
        Daniel Borkmann <daniel@...earbox.net>,
        Daniel Mack <daniel@...que.org>,
        David Drysdale <drysdale@...gle.com>,
        "David S . Miller" <davem@...emloft.net>,
        "Eric W . Biederman" <ebiederm@...ssion.com>,
        James Morris <james.l.morris@...cle.com>,
        Jann Horn <jann@...jh.net>, Kees Cook <keescook@...omium.org>,
        Paul Moore <pmoore@...hat.com>,
        Sargun Dhillon <sargun@...gun.me>,
        "Serge E . Hallyn" <serge@...lyn.com>, Tejun Heo <tj@...nel.org>,
        Thomas Graf <tgraf@...g.ch>, Will Drewry <wad@...omium.org>,
        kernel-hardening@...ts.openwall.com, linux-api@...r.kernel.org,
        linux-security-module@...r.kernel.org, netdev@...r.kernel.org,
        cgroups@...r.kernel.org, Alexander Viro <viro@...iv.linux.org.uk>
Subject: [RFC v4 06/18] fs: Constify path_is_under()'s arguments

Signed-off-by: Mickaël Salaün <mic@...ikod.net>
Cc: Alexander Viro <viro@...iv.linux.org.uk>
---
 fs/namespace.c     | 2 +-
 include/linux/fs.h | 2 +-
 2 files changed, 2 insertions(+), 2 deletions(-)

diff --git a/fs/namespace.c b/fs/namespace.c
index e6c234b1a645..4d80a5066a1f 100644
--- a/fs/namespace.c
+++ b/fs/namespace.c
@@ -2997,7 +2997,7 @@ bool is_path_reachable(struct mount *mnt, struct dentry *dentry,
 	return &mnt->mnt == root->mnt && is_subdir(dentry, root->dentry);
 }
 
-bool path_is_under(struct path *path1, struct path *path2)
+bool path_is_under(const struct path *path1, const struct path *path2)
 {
 	bool res;
 	read_seqlock_excl(&mount_lock);
diff --git a/include/linux/fs.h b/include/linux/fs.h
index 16d2b6e874d6..abbaf162f70e 100644
--- a/include/linux/fs.h
+++ b/include/linux/fs.h
@@ -2709,7 +2709,7 @@ extern struct file * open_exec(const char *);
  
 /* fs/dcache.c -- generic fs support functions */
 extern bool is_subdir(struct dentry *, struct dentry *);
-extern bool path_is_under(struct path *, struct path *);
+extern bool path_is_under(const struct path *, const struct path *);
 
 extern char *file_path(struct file *, char *, int);
 
-- 
2.9.3