From 846e56621897a63966b7f03a70be29060394c363 Mon Sep 17 00:00:00 2001
From: David Howells <dhowells@redhat.com>
Date: Thu, 1 Nov 2018 23:07:24 +0000
Subject: [PATCH] vfs: Put security flags into the fs_context struct

Put security flags, such as SECURITY_LSM_NATIVE_LABELS, into the filesystem
context so that the filesystem can communicate them to the LSM more easily.

Signed-off-by: David Howells <dhowells@redhat.com>
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
---
 include/linux/fs_context.h | 1 +
 include/linux/security.h   | 2 +-
 2 files changed, 2 insertions(+), 1 deletion(-)

diff --git a/include/linux/fs_context.h b/include/linux/fs_context.h
index 899027c947887..d5ff3b0bc28d9 100644
--- a/include/linux/fs_context.h
+++ b/include/linux/fs_context.h
@@ -85,6 +85,7 @@ struct fs_context {
 	void			*security;	/* Linux S&M options */
 	unsigned int		sb_flags;	/* Proposed superblock flags (SB_*) */
 	unsigned int		sb_flags_mask;	/* Superblock flags that were changed */
+	unsigned int		lsm_flags;	/* Information flags from the fs to the LSM */
 	enum fs_context_purpose	purpose:8;
 	bool			need_free:1;	/* Need to call ops->free() */
 };
diff --git a/include/linux/security.h b/include/linux/security.h
index 1cc4d7a3d6fa0..2da9336a987ec 100644
--- a/include/linux/security.h
+++ b/include/linux/security.h
@@ -61,7 +61,7 @@ enum fs_value_type;
 #define SECURITY_CAP_NOAUDIT 0
 #define SECURITY_CAP_AUDIT 1
 
-/* LSM Agnostic defines for sb_set_mnt_opts */
+/* LSM Agnostic defines for fs_context::lsm_flags */
 #define SECURITY_LSM_NATIVE_LABELS	1
 
 struct ctl_table;
-- 
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