xfs/libxfs/xfs_trans_resv.c

62  * num trees * ((2 blocks/level * max depth) - 1)
64  * Keep in mind that max depth is calculated separately for each type of tree.
128  * the inode btree: max depth * blocksize
129  * the allocation btrees: 2 trees * (max depth - 1) * block size
168  * the allocation btrees: 2 trees * (max depth - 1) * block size
241  *    the inode's bmap btree: max depth * block size
244  *    the allocation btrees: 2 exts * 2 trees * (2 * max depth - 1) * block size
247  *    the inode's bmap btree: max depth * block size
252  *    the allocation btrees: 2 trees * (2 * max depth - 1) * block size
257  *    the allocation btrees: 2 exts * 2 trees * (2 * max depth - 1) * block size
291  *    the inode's bmap btree: (max depth + 1) * block size
297  *		4 exts * 2 trees * (2 * max depth - 1) * block size
305  *		2 exts * 2 trees * (2 * max depth - 1) * block size
334  *    the two directory btrees: 2 * (max depth + v2) * dir block size
335  *    the two directory bmap btrees: 2 * max depth * block size
341  *    the allocation btrees: 3 exts * 2 trees * (2 * max depth - 1) * block size
374  *    the directory btree could split: (max depth + v2) * dir block size
375  *    the directory bmap btree could join or split: (max depth + v2) * blocksize
380  *    the allocation btrees: 2 trees * (2 * max depth - 1) * block size
412  *    the directory btree could join: (max depth + v2) * dir block size
413  *    the directory bmap btree could join or split: (max depth + v2) * blocksize
418  *    the allocation btrees: 2 exts * 2 trees * (2 * max depth - 1) * block size
446  *    the directory btree: (max depth + v2) * dir block size
447  *    the directory inode's bmap btree: (max depth + v2) * block size
585  *	bmap btree for bitmap/summary inode: max depth * blocksize
680  *    the inode's bmap btree: max depth * block size
686  *		4 exts * 2 trees * (2 * max depth - 1) * block size
705  *	the attribute btree * max depth
724  *	the inode bmap btree could join or split: max depth * block size
743  *    the attribute btree could join: max depth * block size
744  *    the inode bmap btree could join or split: max depth * block size
749  *    the allocation btrees: 2 exts * 2 trees * (2 * max depth - 1) * block size