linux-kernel - [PATCH v9 7/8] proc: move hidepid values to uapi as they are user interface to mount

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Message-Id: <08f4488dc372c23c3c8511999cf77814e70ce292.1584285253.git.gladkov.alexey@gmail.com>
Date:   Sun, 15 Mar 2020 16:25:22 +0100
From:   Alexey Gladkov <gladkov.alexey@...il.com>
To:     LKML <linux-kernel@...r.kernel.org>,
        Kernel Hardening <kernel-hardening@...ts.openwall.com>,
        Linux API <linux-api@...r.kernel.org>,
        Linux FS Devel <linux-fsdevel@...r.kernel.org>,
        Linux Security Module <linux-security-module@...r.kernel.org>
Cc:     Akinobu Mita <akinobu.mita@...il.com>,
        Alexander Viro <viro@...iv.linux.org.uk>,
        Alexey Dobriyan <adobriyan@...il.com>,
        Alexey Gladkov <legion@...nel.org>,
        Andrew Morton <akpm@...ux-foundation.org>,
        Andy Lutomirski <luto@...nel.org>,
        Daniel Micay <danielmicay@...il.com>,
        Djalal Harouni <tixxdz@...il.com>,
        "Dmitry V . Levin" <ldv@...linux.org>,
        "Eric W . Biederman" <ebiederm@...ssion.com>,
        Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
        Ingo Molnar <mingo@...nel.org>,
        "J . Bruce Fields" <bfields@...ldses.org>,
        Jeff Layton <jlayton@...chiereds.net>,
        Jonathan Corbet <corbet@....net>,
        Kees Cook <keescook@...omium.org>,
        Linus Torvalds <torvalds@...ux-foundation.org>,
        Oleg Nesterov <oleg@...hat.com>
Subject: [PATCH v9 7/8] proc: move hidepid values to uapi as they are user interface to mount

Suggested-by: Alexey Dobriyan <adobriyan@...il.com>
Signed-off-by: Alexey Gladkov <gladkov.alexey@...il.com>
---
 include/linux/proc_fs.h      |  9 +--------
 include/uapi/linux/proc_fs.h | 13 +++++++++++++
 2 files changed, 14 insertions(+), 8 deletions(-)
 create mode 100644 include/uapi/linux/proc_fs.h

diff --git a/include/linux/proc_fs.h b/include/linux/proc_fs.h
index afd38cae2339..d259817ec913 100644
--- a/include/linux/proc_fs.h
+++ b/include/linux/proc_fs.h
@@ -7,6 +7,7 @@
 
 #include <linux/types.h>
 #include <linux/fs.h>
+#include <uapi/linux/proc_fs.h>
 
 struct proc_dir_entry;
 struct seq_file;
@@ -27,14 +28,6 @@ struct proc_ops {
 	unsigned long (*proc_get_unmapped_area)(struct file *, unsigned long, unsigned long, unsigned long, unsigned long);
 };
 
-/* definitions for hide_pid field */
-enum {
-	HIDEPID_OFF	  = 0,
-	HIDEPID_NO_ACCESS = 1,
-	HIDEPID_INVISIBLE = 2,
-	HIDEPID_NOT_PTRACEABLE = 4, /* Limit pids to only ptraceable pids */
-};
-
 /* definitions for proc mount option pidonly */
 enum {
 	PROC_PIDONLY_OFF = 0,
diff --git a/include/uapi/linux/proc_fs.h b/include/uapi/linux/proc_fs.h
new file mode 100644
index 000000000000..dc6d717aa6ec
--- /dev/null
+++ b/include/uapi/linux/proc_fs.h
@@ -0,0 +1,13 @@
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
+#ifndef _UAPI_PROC_FS_H
+#define _UAPI_PROC_FS_H
+
+/* definitions for hide_pid field */
+enum {
+	HIDEPID_OFF            = 0,
+	HIDEPID_NO_ACCESS      = 1,
+	HIDEPID_INVISIBLE      = 2,
+	HIDEPID_NOT_PTRACEABLE = 4,
+};
+
+#endif
-- 
2.25.1