linux-kernel - [PATCH v2 06/15] umd: For clarity rename umh_info umd

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Message-ID: <878sg563po.fsf_-_@x220.int.ebiederm.org>
Date:   Mon, 29 Jun 2020 15:01:55 -0500
From:   ebiederm@...ssion.com (Eric W. Biederman)
To:     <linux-kernel@...r.kernel.org>
Cc:     David Miller <davem@...emloft.net>,
        Greg Kroah-Hartman <greg@...ah.com>,
        Tetsuo Handa <penguin-kernel@...ove.sakura.ne.jp>,
        Alexei Starovoitov <alexei.starovoitov@...il.com>,
        Kees Cook <keescook@...omium.org>,
        Andrew Morton <akpm@...ux-foundation.org>,
        Alexei Starovoitov <ast@...nel.org>,
        Al Viro <viro@...iv.linux.org.uk>, bpf <bpf@...r.kernel.org>,
        linux-fsdevel <linux-fsdevel@...r.kernel.org>,
        Daniel Borkmann <daniel@...earbox.net>,
        Jakub Kicinski <kuba@...nel.org>,
        Masahiro Yamada <yamada.masahiro@...ionext.com>,
        Gary Lin <GLin@...e.com>, Bruno Meneguele <bmeneg@...hat.com>,
        LSM List <linux-security-module@...r.kernel.org>,
        Casey Schaufler <casey@...aufler-ca.com>,
        Luis Chamberlain <mcgrof@...nel.org>,
        Linus Torvalds <torvalds@...ux-foundation.org>
Subject: [PATCH v2 06/15] umd: For clarity rename umh_info umd_info


This structure is only used for user mode drivers so change
the prefix from umh to umd to make that clear.

Link: https://lkml.kernel.org/r/87o8p6f0kw.fsf_-_@x220.int.ebiederm.org
Reviewed-by: Greg Kroah-Hartman <gregkh@...uxfoundation.org>
Signed-off-by: "Eric W. Biederman" <ebiederm@...ssion.com>
---
 include/linux/bpfilter.h    |  2 +-
 include/linux/umd.h         |  6 +++---
 kernel/umd.c                | 20 ++++++++++----------
 net/ipv4/bpfilter/sockopt.c |  2 +-
 4 files changed, 15 insertions(+), 15 deletions(-)

diff --git a/include/linux/bpfilter.h b/include/linux/bpfilter.h
index b42e44e29033..4b43d2240172 100644
--- a/include/linux/bpfilter.h
+++ b/include/linux/bpfilter.h
@@ -11,7 +11,7 @@ int bpfilter_ip_set_sockopt(struct sock *sk, int optname, char __user *optval,
 int bpfilter_ip_get_sockopt(struct sock *sk, int optname, char __user *optval,
 			    int __user *optlen);
 struct bpfilter_umh_ops {
-	struct umh_info info;
+	struct umd_info info;
 	/* since ip_getsockopt() can run in parallel, serialize access to umh */
 	struct mutex lock;
 	int (*sockopt)(struct sock *sk, int optname,
diff --git a/include/linux/umd.h b/include/linux/umd.h
index ef40bee590c1..58a9c603c78d 100644
--- a/include/linux/umd.h
+++ b/include/linux/umd.h
@@ -17,14 +17,14 @@ static inline void exit_umh(struct task_struct *tsk)
 }
 #endif
 
-struct umh_info {
+struct umd_info {
 	const char *cmdline;
 	struct file *pipe_to_umh;
 	struct file *pipe_from_umh;
 	struct list_head list;
-	void (*cleanup)(struct umh_info *info);
+	void (*cleanup)(struct umd_info *info);
 	pid_t pid;
 };
-int fork_usermode_blob(void *data, size_t len, struct umh_info *info);
+int fork_usermode_blob(void *data, size_t len, struct umd_info *info);
 
 #endif /* __LINUX_UMD_H__ */
diff --git a/kernel/umd.c b/kernel/umd.c
index 99af9d594eca..f7dacb19c705 100644
--- a/kernel/umd.c
+++ b/kernel/umd.c
@@ -11,7 +11,7 @@ static DEFINE_MUTEX(umh_list_lock);
 
 static int umd_setup(struct subprocess_info *info, struct cred *new)
 {
-	struct umh_info *umh_info = info->data;
+	struct umd_info *umd_info = info->data;
 	struct file *from_umh[2];
 	struct file *to_umh[2];
 	int err;
@@ -43,21 +43,21 @@ static int umd_setup(struct subprocess_info *info, struct cred *new)
 		return err;
 	}
 
-	umh_info->pipe_to_umh = to_umh[1];
-	umh_info->pipe_from_umh = from_umh[0];
-	umh_info->pid = task_pid_nr(current);
+	umd_info->pipe_to_umh = to_umh[1];
+	umd_info->pipe_from_umh = from_umh[0];
+	umd_info->pid = task_pid_nr(current);
 	current->flags |= PF_UMH;
 	return 0;
 }
 
 static void umd_cleanup(struct subprocess_info *info)
 {
-	struct umh_info *umh_info = info->data;
+	struct umd_info *umd_info = info->data;
 
 	/* cleanup if umh_setup() was successful but exec failed */
 	if (info->retval) {
-		fput(umh_info->pipe_to_umh);
-		fput(umh_info->pipe_from_umh);
+		fput(umd_info->pipe_to_umh);
+		fput(umd_info->pipe_from_umh);
 	}
 }
 
@@ -72,12 +72,12 @@ static void umd_cleanup(struct subprocess_info *info)
  *
  * Returns either negative error or zero which indicates success
  * in executing a blob of bytes as a usermode process. In such
- * case 'struct umh_info *info' is populated with two pipes
+ * case 'struct umd_info *info' is populated with two pipes
  * and a pid of the process. The caller is responsible for health
  * check of the user process, killing it via pid, and closing the
  * pipes when user process is no longer needed.
  */
-int fork_usermode_blob(void *data, size_t len, struct umh_info *info)
+int fork_usermode_blob(void *data, size_t len, struct umd_info *info)
 {
 	const char *cmdline = (info->cmdline) ? info->cmdline : "usermodehelper";
 	struct subprocess_info *sub_info;
@@ -126,7 +126,7 @@ EXPORT_SYMBOL_GPL(fork_usermode_blob);
 
 void __exit_umh(struct task_struct *tsk)
 {
-	struct umh_info *info;
+	struct umd_info *info;
 	pid_t pid = tsk->pid;
 
 	mutex_lock(&umh_list_lock);
diff --git a/net/ipv4/bpfilter/sockopt.c b/net/ipv4/bpfilter/sockopt.c
index 0480918bfc7c..c0dbcc86fcdb 100644
--- a/net/ipv4/bpfilter/sockopt.c
+++ b/net/ipv4/bpfilter/sockopt.c
@@ -12,7 +12,7 @@
 struct bpfilter_umh_ops bpfilter_ops;
 EXPORT_SYMBOL_GPL(bpfilter_ops);
 
-static void bpfilter_umh_cleanup(struct umh_info *info)
+static void bpfilter_umh_cleanup(struct umd_info *info)
 {
 	mutex_lock(&bpfilter_ops.lock);
 	bpfilter_ops.stop = true;
-- 
2.25.0