43 static int punch_hole(struct gfs2_inode *ip, u64 offset, u64 length);
599 	iomap->length = hole_size << inode->i_blkbits;  in gfs2_hole_size()
669 	size_t dblks = iomap->length >> inode->i_blkbits;  in gfs2_iomap_alloc()
774 	iomap->length = (u64)dblks << inode->i_blkbits;  in gfs2_iomap_alloc()
840 static int gfs2_iomap_get(struct inode *inode, loff_t pos, loff_t length,  in gfs2_iomap_get()  argument
856 	if (!length)  in gfs2_iomap_get()
870 			if (pos + length > max_size)  in gfs2_iomap_get()
872 			iomap->length = max_size;  in gfs2_iomap_get()
881 					iomap->length = length;  in gfs2_iomap_get()
885 			iomap->length = size;  in gfs2_iomap_get()
897 	lblock_stop = (pos + length - 1) >> inode->i_blkbits;  in gfs2_iomap_get()
899 	iomap->length = len << inode->i_blkbits;  in gfs2_iomap_get()
923 	iomap->length = len << inode->i_blkbits;  in gfs2_iomap_get()
944 			iomap->length = size - pos;  in gfs2_iomap_get()
953 		if (alloc_size < iomap->length)  in gfs2_iomap_get()
954 			iomap->length = alloc_size;  in gfs2_iomap_get()
1062 				  loff_t length, unsigned flags,  in gfs2_iomap_begin_write()  argument
1072 		  pos + length > gfs2_max_stuffed_size(ip);  in gfs2_iomap_begin_write()
1080 		gfs2_write_calc_reserv(ip, iomap->length, &data_blocks,  in gfs2_iomap_begin_write()
1101 				       iomap->length >> inode->i_blkbits);  in gfs2_iomap_begin_write()
1111 					     iomap->length, flags, iomap, mp);  in gfs2_iomap_begin_write()
1121 				punch_hole(ip, iomap->offset, iomap->length);  in gfs2_iomap_begin_write()
1151 static int gfs2_iomap_begin(struct inode *inode, loff_t pos, loff_t length,  in gfs2_iomap_begin()  argument
1160 	trace_gfs2_iomap_start(ip, pos, length, flags);  in gfs2_iomap_begin()
1167 	ret = gfs2_iomap_get(inode, pos, length, flags, iomap, &mp);  in gfs2_iomap_begin()
1191 	ret = gfs2_iomap_begin_write(inode, pos, length, flags, iomap, &mp);  in gfs2_iomap_begin()
1202 static int gfs2_iomap_end(struct inode *inode, loff_t pos, loff_t length,  in gfs2_iomap_end()  argument
1229 	if (length != written && (iomap->flags & IOMAP_F_NEW)) {  in gfs2_iomap_end()
1232 		loff_t end = (pos + length) & ~blockmask;  in gfs2_iomap_end()
1288 	loff_t length = bh_map->b_size;  in gfs2_block_map()  local
1299 		ret = gfs2_iomap_get(inode, pos, length, IOMAP_WRITE, &iomap, &mp);  in gfs2_block_map()
1304 		ret = gfs2_iomap_get(inode, pos, length, 0, &iomap, &mp);  in gfs2_block_map()
1310 	if (iomap.length > bh_map->b_size) {  in gfs2_block_map()
1311 		iomap.length = bh_map->b_size;  in gfs2_block_map()
1316 	bh_map->b_size = iomap.length;  in gfs2_block_map()
1352 				 unsigned int length)  in gfs2_block_zero_range()  argument
1354 	return iomap_zero_range(inode, from, length, NULL, &gfs2_iomap_ops);  in gfs2_block_zero_range()
1457 int gfs2_iomap_get_alloc(struct inode *inode, loff_t pos, loff_t length,  in gfs2_iomap_get_alloc()  argument
1463 	ret = gfs2_iomap_get(inode, pos, length, IOMAP_WRITE, iomap, &mp);  in gfs2_iomap_get_alloc()
1750 static int punch_hole(struct gfs2_inode *ip, u64 offset, u64 length)  in punch_hole()  argument
1789 	if (length) {  in punch_hole()
1790 		u64 end_offset = offset + length;  in punch_hole()
2381 static int stuffed_zero_range(struct inode *inode, loff_t offset, loff_t length)  in stuffed_zero_range()  argument
2389 	if (offset + length > inode->i_size)  in stuffed_zero_range()
2390 		length = inode->i_size - offset;  in stuffed_zero_range()
2397 	       length);  in stuffed_zero_range()
2403 					 loff_t length)  in gfs2_journaled_truncate_range()  argument
2409 	while (length) {  in gfs2_journaled_truncate_range()
2414 		chunk = length;  in gfs2_journaled_truncate_range()
2424 		length -= chunk;  in gfs2_journaled_truncate_range()
2438 int __gfs2_punch_hole(struct file *file, loff_t offset, loff_t length)  in __gfs2_punch_hole()  argument
2454 		error = stuffed_zero_range(inode, offset, length);  in __gfs2_punch_hole()
2462 		end_len = (offset + length) & (blocksize - 1);  in __gfs2_punch_hole()
2464 			unsigned int len = length;  in __gfs2_punch_hole()
2465 			if (length > blocksize - start_off)  in __gfs2_punch_hole()
2470 			if (start_off + length < blocksize)  in __gfs2_punch_hole()
2475 				offset + length - end_len, end_len);  in __gfs2_punch_hole()
2483 		gfs2_journaled_truncate_range(inode, offset, length);  in __gfs2_punch_hole()
2485 		truncate_pagecache_range(inode, offset, offset + length - 1);  in __gfs2_punch_hole()
2494 		error = punch_hole(ip, offset, length);  in __gfs2_punch_hole()