- 3.1.101

[packages/kernel.git] / ovl03-vfs-export-inode_permission-to-modules.patch

From 04a60da13369fef6ea11919a9b34f05bdbd3b444 Mon Sep 17 00:00:00 2001
From: Miklos Szeredi <mszeredi@suse.cz>
Date: Thu, 30 Aug 2012 16:13:51 +0200
Subject: [PATCH 11/13] vfs: export __inode_permission() to modules
Patch-mainline: not yet

We need to be able to check inode permissions (but not filesystem implied
permissions) for stackable filesystems.  Expose this interface for overlayfs.

Signed-off-by: Miklos Szeredi <mszeredi@suse.cz>
---
 fs/internal.h      |    5 -----
 fs/namei.c         |    1 +
 include/linux/fs.h |    1 +
 3 files changed, 2 insertions(+), 5 deletions(-)

--- a/fs/internal.h
+++ b/fs/internal.h
@@ -42,11 +42,6 @@ static inline int __sync_blockdev(struct
 extern void __init chrdev_init(void);
 
 /*
- * namei.c
- */
-extern int __inode_permission(struct inode *, int);
-
-/*
  * namespace.c
  */
 extern int copy_mount_options(const void __user *, unsigned long *);
--- a/fs/namei.c
+++ b/fs/namei.c
@@ -402,6 +402,7 @@ int __inode_permission(struct inode *ino
 
 	return security_inode_permission(inode, mask);
 }
+EXPORT_SYMBOL(__inode_permission);
 
 /**
  * sb_permission - Check superblock-level permissions
--- a/include/linux/fs.h
+++ b/include/linux/fs.h
@@ -2221,6 +2221,7 @@ extern sector_t bmap(struct inode *, sec
 #endif
 extern int notify_change(struct dentry *, struct iattr *);
 extern int inode_permission(struct inode *, int);
+extern int __inode_permission(struct inode *, int);
 extern int generic_permission(struct inode *, int);
 
 static inline bool execute_ok(struct inode *inode)