fs/xfs/xfs_iomap.c

70  * length.
129 	iomap->length = XFS_FSB_TO_B(mp, imap->br_blockcount);
157 	iomap->length = XFS_FSB_TO_B(ip->i_mount, end_fsb - offset_fsb);
483 	 * length, then use the current offset as the basis.  This ensures that
791 	loff_t			length,
800 	xfs_fileoff_t		end_fsb = xfs_iomap_end_fsb(mp, offset, length);
817 	if (offset + length > i_size_read(inode))
843 		length = XFS_FSB_TO_B(mp, end_fsb) - offset;
870 	            ((offset | length) & mp->m_blockmask))
876 	trace_xfs_iomap_found(ip, offset, length, XFS_DATA_FORK, &imap);
885 	 * We cap the maximum length we map to a sane size  to keep the chunks
893 	length = min_t(loff_t, length, 1024 * PAGE_SIZE);
894 	end_fsb = xfs_iomap_end_fsb(mp, offset, length);
896 	if (offset + length > XFS_ISIZE(ip))
907 	trace_xfs_iomap_alloc(ip, offset, length, XFS_DATA_FORK, &imap);
912 	length = XFS_FSB_TO_B(mp, cmap.br_startoff + cmap.br_blockcount);
913 	trace_xfs_iomap_found(ip, offset, length - offset, XFS_COW_FORK, &cmap);
938 	loff_t			length,
949 		xfs_reflink_cancel_cow_range(ip, pos, length, true);
1103 		 * We cap the maximum length we map here to MAX_WRITEBACK_PAGES
1228 	loff_t			length)
1230 	xfs_bmap_punch_delalloc_range(XFS_I(inode), offset, offset + length);
1238 	loff_t			length,
1248 			length, written, &xfs_buffered_write_delalloc_punch);
1275 	loff_t			length,
1284 	xfs_fileoff_t		end_fsb = xfs_iomap_end_fsb(mp, offset, length);
1307 	trace_xfs_iomap_found(ip, offset, length, XFS_DATA_FORK, &imap);
1320 	loff_t			length,
1328 	xfs_fileoff_t		end_fsb = XFS_B_TO_FSB(mp, offset + length);
1355 		data_fsb = xfs_iomap_end_fsb(mp, offset, length);
1408 	loff_t			length,
1416 	xfs_fileoff_t		end_fsb = XFS_B_TO_FSB(mp, offset + length);