u32 parent_ino;
u32 parent_gen;
} i32;
- __u32 raw[6];
+ __u32 raw[0];
};
};
/**
* struct export_operations - for nfsd to communicate with file systems
- * @decode_fh: decode a file handle fragment and return a &struct dentry
* @encode_fh: encode a file handle fragment from a dentry
+ * @fh_to_dentry: find the implied object and get a dentry for it
+ * @fh_to_parent: find the implied object's parent and get a dentry for it
* @get_name: find the name for a given inode in a given directory
* @get_parent: find the parent of a given directory
- * @get_dentry: find a dentry for the inode given a file handle sub-fragment
*
- * Description:
- * The export_operations structure provides a means for nfsd to communicate
- * with a particular exported file system - particularly enabling nfsd and
- * the filesystem to co-operate when dealing with file handles.
- *
- * export_operations contains two basic operation for dealing with file
- * handles, decode_fh() and encode_fh(), and allows for some other
- * operations to be defined which standard helper routines use to get
- * specific information from the filesystem.
- *
- * nfsd encodes information use to determine which filesystem a filehandle
- * applies to in the initial part of the file handle. The remainder, termed
- * a file handle fragment, is controlled completely by the filesystem. The
- * standard helper routines assume that this fragment will contain one or
- * two sub-fragments, one which identifies the file, and one which may be
- * used to identify the (a) directory containing the file.
- *
- * In some situations, nfsd needs to get a dentry which is connected into a
- * specific part of the file tree. To allow for this, it passes the
- * function acceptable() together with a @context which can be used to see
- * if the dentry is acceptable. As there can be multiple dentrys for a
- * given file, the filesystem should check each one for acceptability before
- * looking for the next. As soon as an acceptable one is found, it should
- * be returned.
+ * See Documentation/filesystems/Exporting for details on how to use
+ * this interface correctly.
*
* encode_fh:
* @encode_fh should store in the file handle fragment @fh (using at most