1 From 04a60da13369fef6ea11919a9b34f05bdbd3b444 Mon Sep 17 00:00:00 2001
2 From: Miklos Szeredi <mszeredi@suse.cz>
3 Date: Thu, 30 Aug 2012 16:13:51 +0200
4 Subject: [PATCH 11/13] vfs: export __inode_permission() to modules
5 Patch-mainline: not yet
7 We need to be able to check inode permissions (but not filesystem implied
8 permissions) for stackable filesystems. Expose this interface for overlayfs.
10 Signed-off-by: Miklos Szeredi <mszeredi@suse.cz>
12 fs/internal.h | 5 -----
14 include/linux/fs.h | 1 +
15 3 files changed, 2 insertions(+), 5 deletions(-)
17 Index: linux-3.6-rc7-master/fs/internal.h
18 ===================================================================
19 --- linux-3.6-rc7-master.orig/fs/internal.h 2012-09-24 03:10:57.000000000 +0200
20 +++ linux-3.6-rc7-master/fs/internal.h 2012-09-28 13:37:06.000000000 +0200
21 @@ -42,11 +42,6 @@ static inline int __sync_blockdev(struct
22 extern void __init chrdev_init(void);
27 -extern int __inode_permission(struct inode *, int);
32 extern int copy_mount_options(const void __user *, unsigned long *);
33 Index: linux-3.6-rc7-master/fs/namei.c
34 ===================================================================
35 --- linux-3.6-rc7-master.orig/fs/namei.c 2012-09-28 13:36:47.000000000 +0200
36 +++ linux-3.6-rc7-master/fs/namei.c 2012-09-28 13:37:06.000000000 +0200
37 @@ -348,6 +348,7 @@ int __inode_permission(struct inode *ino
39 return security_inode_permission(inode, mask);
41 +EXPORT_SYMBOL(__inode_permission);
44 * sb_permission - Check superblock-level permissions
45 Index: linux-3.6-rc7-master/include/linux/fs.h
46 ===================================================================
47 --- linux-3.6-rc7-master.orig/include/linux/fs.h 2012-09-28 13:37:00.000000000 +0200
48 +++ linux-3.6-rc7-master/include/linux/fs.h 2012-09-28 13:37:06.000000000 +0200
49 @@ -2427,6 +2427,7 @@ extern sector_t bmap(struct inode *, sec
51 extern int notify_change(struct dentry *, struct iattr *);
52 extern int inode_permission(struct inode *, int);
53 +extern int __inode_permission(struct inode *, int);
54 extern int generic_permission(struct inode *, int);
56 static inline bool execute_ok(struct inode *inode)