fs/xfs/xfs_dir2_node.c

189 	int			compact;	/* compacting stale leaves */
191 	int			highstale;	/* next stale entry */
196 	int			lowstale;	/* previous stale entry */
215 	 * the block, if there are no stale entries it won't fit.
216 	 * Caller will do a split.  If there are stale entries we'll do
221 		if (!leaf->hdr.stale)
223 		compact = be16_to_cpu(leaf->hdr.stale) > 1;
234 	 * Compact out all but one stale leaf entry.  Leaves behind
244 	else if (leaf->hdr.stale) {
249 	 * No stale entries, just insert a space for the new entry.
251 	if (!leaf->hdr.stale) {
261 	 * There are stale entries.  We'll use one for the new entry.
266 		 * which stale entry will be used.
270 			 * Find first stale entry before our insertion point.
279 			 * Find next stale entry after insertion point.
293 		 * Using the low stale entry.
294 		 * Shift entries up toward the stale slot.
311 		 * Using the high stale entry.
312 		 * Shift entries down toward the stale slot.
326 		be16_add(&leaf->hdr.stale, -1);
352 	int		stale;			/* count of stale leaves */
358 	for (i = stale = 0; i < be16_to_cpu(leaf->hdr.count); i++) {
364 			stale++;
366 	ASSERT(be16_to_cpu(leaf->hdr.stale) == stale);
463 		 * Skip stale leaf entries.
642 	int		stale;			/* count stale leaves copied */
669 	 * If the source has stale leaves, count the ones in the copy range
672 	if (leaf_s->hdr.stale) {
675 		for (i = start_s, stale = 0; i < start_s + count; i++) {
677 				stale++;
680 		stale = 0;
700 	be16_add(&leaf_s->hdr.stale, -(stale));
702 	be16_add(&leaf_d->hdr.stale, stale);
754 	int			oldstale;	/* old count of stale leaves */
774 	oldstale = be16_to_cpu(leaf1->hdr.stale) + be16_to_cpu(leaf2->hdr.stale);
809 	ASSERT(be16_to_cpu(leaf1->hdr.stale) + be16_to_cpu(leaf2->hdr.stale) == oldstale);
884 	 * Kill the leaf entry by marking it stale.
887 	be16_add(&leaf->hdr.stale, 1);
1043 		 (be16_to_cpu(leaf->hdr.count) - be16_to_cpu(leaf->hdr.stale))) <
1144 	count = be16_to_cpu(leaf->hdr.count) - be16_to_cpu(leaf->hdr.stale);
1198 		count = be16_to_cpu(leaf->hdr.count) - be16_to_cpu(leaf->hdr.stale);
1202 		count += be16_to_cpu(leaf->hdr.count) - be16_to_cpu(leaf->hdr.stale);
1263 	 * If there are any stale leaf entries, take this opportunity
1266 	if (drop_leaf->hdr.stale)
1268 	if (save_leaf->hdr.stale)