Commit bd5d0856 authored Oct 24, 2014 by Miklos Szeredi

vfs: export __inode_permission() to modules

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>

parent 1c118596

fs/internal.h

+0 −1

Original line number	Diff line number	Diff line
		@@ -47,7 +47,6 @@ extern void __init chrdev_init(void);
		/*
		* namei.c
		*/
		extern int __inode_permission(struct inode *, int);
		extern int user_path_mountpoint_at(int, const char __user , unsigned int, struct path );
		extern int vfs_path_lookup(struct dentry , struct vfsmount ,
		const char , unsigned int, struct path );

fs/namei.c

+1 −0

Original line number	Diff line number	Diff line
		@@ -416,6 +416,7 @@ int __inode_permission(struct inode *inode, int mask)

		return security_inode_permission(inode, mask);
		}
		EXPORT_SYMBOL(__inode_permission);

		/**
		* sb_permission - Check superblock-level permissions

include/linux/fs.h

+1 −0

Original line number	Diff line number	Diff line
		@@ -2257,6 +2257,7 @@ extern sector_t bmap(struct inode *, sector_t);
		#endif
		extern int notify_change(struct dentry , struct iattr , struct inode **);
		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)