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UBUNTU: ubuntu: overlayfs -- vfs: export __inode_permission() to modules

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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>
Signed-off-by: Andy Whitcroft <apw@canonical.com>
This commit is contained in:
Miklos Szeredi
2012-08-30 16:13:51 +02:00
committed by Tim Gardner
parent 257f832ec2
commit 12de1d2f69
3 changed files with 2 additions and 5 deletions
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5
fs/internal.h
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@@ -41,11 +41,6 @@ static inline int __sync_blockdev(struct block_device *bdev, int wait)
*/
extern void __init chrdev_init(void);
/*
* namei.c
*/
extern int __inode_permission(struct inode *, int);
/*
* namespace.c
*/

1
fs/namei.c
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@@ -402,6 +402,7 @@ int __inode_permission(struct inode *inode, int mask)
return security_inode_permission(inode, mask);
}
EXPORT_SYMBOL(__inode_permission);
/**
* sb_permission - Check superblock-level permissions

1
include/linux/fs.h
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@@ -2223,6 +2223,7 @@ extern sector_t bmap(struct inode *, sector_t);
#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)