5  *  Handling of indirect blocks' trees.
14 enum {DIRECT = 10, DEPTH = 4};	/* Have triple indirect */
63 } Indirect;  typedef
67 static inline void add_chain(Indirect *p, struct buffer_head *bh, sysv_zone_t *v)  in add_chain()
73 static inline int verify_chain(Indirect *from, Indirect *to)  in verify_chain()
88 static Indirect *get_branch(struct inode *inode,  in get_branch()
91 			    Indirect chain[],  in get_branch()
95 	Indirect *p = chain;  in get_branch()
128 			Indirect *branch)  in alloc_branch()
173 				Indirect chain[],  in splice_branch()
174 				Indirect *where,  in splice_branch()
188 	/* had we spliced it onto indirect block? */  in splice_branch()
211 	Indirect chain[DEPTH];  in get_block()
213 	Indirect *partial;  in get_block()
235 	/* Next simple case - plain lookup or failed read of indirect block */  in get_block()
247 	 * Indirect block might be removed by truncate while we were  in get_block()
281 static Indirect *find_shared(struct inode *inode,  in find_shared()
284 				Indirect chain[],  in find_shared()
287 	Indirect *partial, *p;  in find_shared()
372 	Indirect chain[DEPTH];  in sysv_truncate()
373 	Indirect *partial;  in sysv_truncate()
407 	/* Clear the ends of indirect blocks on the shared branch */  in sysv_truncate()