41 #define XFS_WRITEIO_ALIGN(mp,off)	(((off) >> mp->m_writeio_log) \  argument
42 						<< mp->m_writeio_log)
47 	xfs_mount_t	*mp,  in xfs_iomap_eof_align_last_fsb()  argument
64 		if (mp->m_swidth && (mp->m_flags & XFS_MOUNT_SWALLOC))  in xfs_iomap_eof_align_last_fsb()
65 			align = mp->m_swidth;  in xfs_iomap_eof_align_last_fsb()
66 		else if (mp->m_dalign)  in xfs_iomap_eof_align_last_fsb()
67 			align = mp->m_dalign;  in xfs_iomap_eof_align_last_fsb()
69 		if (align && XFS_ISIZE(ip) < XFS_FSB_TO_B(mp, align))  in xfs_iomap_eof_align_last_fsb()
120 	xfs_mount_t	*mp = ip->i_mount;  in xfs_iomap_write_direct()  local
143 	offset_fsb = XFS_B_TO_FSBT(mp, offset);  in xfs_iomap_write_direct()
144 	last_fsb = XFS_B_TO_FSB(mp, ((xfs_ufsize_t)(offset + count)));  in xfs_iomap_write_direct()
155 		error = xfs_iomap_eof_align_last_fsb(mp, ip, extsz, &last_fsb);  in xfs_iomap_write_direct()
177 		resrtextents /= mp->m_sb.sb_rextsize;  in xfs_iomap_write_direct()
178 		resblks = XFS_DIOSTRAT_SPACE_RES(mp, 0);  in xfs_iomap_write_direct()
182 		resblks = qblocks = XFS_DIOSTRAT_SPACE_RES(mp, resaligned);  in xfs_iomap_write_direct()
198 	tp = xfs_trans_alloc(mp, XFS_TRANS_DIOSTRAT);  in xfs_iomap_write_direct()
216 	error = xfs_trans_reserve(tp, &M_RES(mp)->tr_write,  in xfs_iomap_write_direct()
291 	xfs_mount_t	*mp,  in xfs_iomap_eof_want_preallocate()  argument
313 	if (!(mp->m_flags & XFS_MOUNT_DFLT_IOSIZE) &&  in xfs_iomap_eof_want_preallocate()
314 	    XFS_ISIZE(ip) < XFS_FSB_TO_B(mp, mp->m_writeio_blocks))  in xfs_iomap_eof_want_preallocate()
321 	start_fsb = XFS_B_TO_FSBT(mp, ((xfs_ufsize_t)(offset + count - 1)));  in xfs_iomap_eof_want_preallocate()
322 	count_fsb = XFS_B_TO_FSB(mp, mp->m_super->s_maxbytes);  in xfs_iomap_eof_want_preallocate()
362 	struct xfs_mount	*mp,  in xfs_iomap_eof_prealloc_initial_size()  argument
375 	if (mp->m_flags & XFS_MOUNT_DFLT_IOSIZE)  in xfs_iomap_eof_prealloc_initial_size()
379 	if (XFS_ISIZE(ip) < XFS_FSB_TO_B(mp, mp->m_dalign))  in xfs_iomap_eof_prealloc_initial_size()
390 	start_fsb = XFS_B_TO_FSB(mp, offset);  in xfs_iomap_eof_prealloc_initial_size()
402 	return XFS_B_TO_FSB(mp, offset);  in xfs_iomap_eof_prealloc_initial_size()
473 	struct xfs_mount	*mp,  in xfs_iomap_prealloc_size()  argument
485 	alloc_blocks = xfs_iomap_eof_prealloc_initial_size(mp, ip, offset,  in xfs_iomap_prealloc_size()
501 	freesp = percpu_counter_read_positive(&mp->m_fdblocks);  in xfs_iomap_prealloc_size()
502 	if (freesp < mp->m_low_space[XFS_LOWSP_5_PCNT]) {  in xfs_iomap_prealloc_size()
504 		if (freesp < mp->m_low_space[XFS_LOWSP_4_PCNT])  in xfs_iomap_prealloc_size()
506 		if (freesp < mp->m_low_space[XFS_LOWSP_3_PCNT])  in xfs_iomap_prealloc_size()
508 		if (freesp < mp->m_low_space[XFS_LOWSP_2_PCNT])  in xfs_iomap_prealloc_size()
510 		if (freesp < mp->m_low_space[XFS_LOWSP_1_PCNT])  in xfs_iomap_prealloc_size()
559 	if (alloc_blocks < mp->m_writeio_blocks)  in xfs_iomap_prealloc_size()
560 		alloc_blocks = mp->m_writeio_blocks;  in xfs_iomap_prealloc_size()
563 				      mp->m_writeio_blocks);  in xfs_iomap_prealloc_size()
575 	xfs_mount_t	*mp = ip->i_mount;  in xfs_iomap_write_delay()  local
597 	offset_fsb = XFS_B_TO_FSBT(mp, offset);  in xfs_iomap_write_delay()
599 	error = xfs_iomap_eof_want_preallocate(mp, ip, offset, count,  in xfs_iomap_write_delay()
608 		alloc_blocks = xfs_iomap_prealloc_size(mp, ip, offset, imap,  in xfs_iomap_write_delay()
611 		aligned_offset = XFS_WRITEIO_ALIGN(mp, (offset + count - 1));  in xfs_iomap_write_delay()
612 		ioalign = XFS_B_TO_FSBT(mp, aligned_offset);  in xfs_iomap_write_delay()
615 		last_fsb = XFS_B_TO_FSB(mp, ((xfs_ufsize_t)(offset + count)));  in xfs_iomap_write_delay()
619 		error = xfs_iomap_eof_align_last_fsb(mp, ip, extsz, &last_fsb);  in xfs_iomap_write_delay()
628 	if (last_fsb > XFS_B_TO_FSB(mp, mp->m_super->s_maxbytes))  in xfs_iomap_write_delay()
629 		last_fsb = XFS_B_TO_FSB(mp, mp->m_super->s_maxbytes);  in xfs_iomap_write_delay()
689 	xfs_mount_t	*mp = ip->i_mount;  in xfs_iomap_write_allocate()  local
707 	offset_fsb = XFS_B_TO_FSBT(mp, offset);  in xfs_iomap_write_allocate()
711 	XFS_STATS_ADD(mp, xs_xstrat_bytes, XFS_FSB_TO_B(mp, count_fsb));  in xfs_iomap_write_allocate()
725 			tp = xfs_trans_alloc(mp, XFS_TRANS_STRAT_WRITE);  in xfs_iomap_write_allocate()
727 			nres = XFS_EXTENTADD_SPACE_RES(mp, XFS_DATA_FORK);  in xfs_iomap_write_allocate()
728 			error = xfs_trans_reserve(tp, &M_RES(mp)->tr_write,  in xfs_iomap_write_allocate()
771 			end_fsb = XFS_B_TO_FSB(mp, XFS_ISIZE(ip));  in xfs_iomap_write_allocate()
818 			XFS_STATS_INC(mp, xs_xstrat_quick);  in xfs_iomap_write_allocate()
844 	xfs_mount_t	*mp = ip->i_mount;  in xfs_iomap_write_unwritten()  local
860 	offset_fsb = XFS_B_TO_FSBT(mp, offset);  in xfs_iomap_write_unwritten()
861 	count_fsb = XFS_B_TO_FSB(mp, (xfs_ufsize_t)offset + count);  in xfs_iomap_write_unwritten()
874 	resblks = XFS_DIOSTRAT_SPACE_RES(mp, 0) << 1;  in xfs_iomap_write_unwritten()
888 		sb_start_intwrite(mp->m_super);  in xfs_iomap_write_unwritten()
889 		tp = _xfs_trans_alloc(mp, XFS_TRANS_STRAT_WRITE, KM_NOFS);  in xfs_iomap_write_unwritten()
891 		error = xfs_trans_reserve(tp, &M_RES(mp)->tr_write,  in xfs_iomap_write_unwritten()
917 		i_size = XFS_FSB_TO_B(mp, offset_fsb + count_fsb);  in xfs_iomap_write_unwritten()