Lines Matching full:directory

155 /* Every directory can have many redundant directory entries scattered
156  * throughout the directory tree.  First there is the directory entry
157  * with the name of the directory stored in the parent directory.
158  * Then, there is the "." directory entry stored in the directory
159  * itself.  Finally, there are possibly many ".." directory entries
165  * the many redundant entries for each directory.  We normalize the
166  * block and offset by always making them point to the "."  directory.
168  * Notice that we do not use the entry for the directory with the name
169  * that is located in the parent directory.  Even though choosing this
170  * first directory is more natural, it is much easier to find the "."
173  * redundant entries for the directory.  Thus, it can always be
174  * reached regardless of which directory entry you have in hand.
176  * This works because the "." entry is simply the first directory
177  * record when you start reading the file that holds all the directory
182  * You should pass the directory entry in "de".  On return, "block"
184  * affected making it safe to call even for non-directory file