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
142 	offset_fsb = XFS_B_TO_FSBT(mp, offset);  in xfs_iomap_write_direct()
143 	last_fsb = XFS_B_TO_FSB(mp, ((xfs_ufsize_t)(offset + count)));  in xfs_iomap_write_direct()
145 		error = xfs_iomap_eof_align_last_fsb(mp, ip, extsz, &last_fsb);  in xfs_iomap_write_direct()
167 		resrtextents /= mp->m_sb.sb_rextsize;  in xfs_iomap_write_direct()
168 		resblks = XFS_DIOSTRAT_SPACE_RES(mp, 0);  in xfs_iomap_write_direct()
172 		resblks = qblocks = XFS_DIOSTRAT_SPACE_RES(mp, resaligned);  in xfs_iomap_write_direct()
179 	tp = xfs_trans_alloc(mp, XFS_TRANS_DIOSTRAT);  in xfs_iomap_write_direct()
180 	error = xfs_trans_reserve(tp, &M_RES(mp)->tr_write,  in xfs_iomap_write_direct()
253 	xfs_mount_t	*mp,  in xfs_iomap_eof_want_preallocate()  argument
275 	if (!(mp->m_flags & XFS_MOUNT_DFLT_IOSIZE) &&  in xfs_iomap_eof_want_preallocate()
276 	    XFS_ISIZE(ip) < XFS_FSB_TO_B(mp, mp->m_writeio_blocks))  in xfs_iomap_eof_want_preallocate()
283 	start_fsb = XFS_B_TO_FSBT(mp, ((xfs_ufsize_t)(offset + count - 1)));  in xfs_iomap_eof_want_preallocate()
284 	count_fsb = XFS_B_TO_FSB(mp, mp->m_super->s_maxbytes);  in xfs_iomap_eof_want_preallocate()
324 	struct xfs_mount	*mp,  in xfs_iomap_eof_prealloc_initial_size()  argument
337 	if (mp->m_flags & XFS_MOUNT_DFLT_IOSIZE)  in xfs_iomap_eof_prealloc_initial_size()
341 	if (XFS_ISIZE(ip) < XFS_FSB_TO_B(mp, mp->m_dalign))  in xfs_iomap_eof_prealloc_initial_size()
352 	start_fsb = XFS_B_TO_FSB(mp, offset);  in xfs_iomap_eof_prealloc_initial_size()
364 	return XFS_B_TO_FSB(mp, offset);  in xfs_iomap_eof_prealloc_initial_size()
435 	struct xfs_mount	*mp,  in xfs_iomap_prealloc_size()  argument
447 	alloc_blocks = xfs_iomap_eof_prealloc_initial_size(mp, ip, offset,  in xfs_iomap_prealloc_size()
463 	freesp = percpu_counter_read_positive(&mp->m_fdblocks);  in xfs_iomap_prealloc_size()
464 	if (freesp < mp->m_low_space[XFS_LOWSP_5_PCNT]) {  in xfs_iomap_prealloc_size()
466 		if (freesp < mp->m_low_space[XFS_LOWSP_4_PCNT])  in xfs_iomap_prealloc_size()
468 		if (freesp < mp->m_low_space[XFS_LOWSP_3_PCNT])  in xfs_iomap_prealloc_size()
470 		if (freesp < mp->m_low_space[XFS_LOWSP_2_PCNT])  in xfs_iomap_prealloc_size()
472 		if (freesp < mp->m_low_space[XFS_LOWSP_1_PCNT])  in xfs_iomap_prealloc_size()
521 	if (alloc_blocks < mp->m_writeio_blocks)  in xfs_iomap_prealloc_size()
522 		alloc_blocks = mp->m_writeio_blocks;  in xfs_iomap_prealloc_size()
525 				      mp->m_writeio_blocks);  in xfs_iomap_prealloc_size()
537 	xfs_mount_t	*mp = ip->i_mount;  in xfs_iomap_write_delay()  local
559 	offset_fsb = XFS_B_TO_FSBT(mp, offset);  in xfs_iomap_write_delay()
561 	error = xfs_iomap_eof_want_preallocate(mp, ip, offset, count,  in xfs_iomap_write_delay()
570 		alloc_blocks = xfs_iomap_prealloc_size(mp, ip, offset, imap,  in xfs_iomap_write_delay()
573 		aligned_offset = XFS_WRITEIO_ALIGN(mp, (offset + count - 1));  in xfs_iomap_write_delay()
574 		ioalign = XFS_B_TO_FSBT(mp, aligned_offset);  in xfs_iomap_write_delay()
577 		last_fsb = XFS_B_TO_FSB(mp, ((xfs_ufsize_t)(offset + count)));  in xfs_iomap_write_delay()
581 		error = xfs_iomap_eof_align_last_fsb(mp, ip, extsz, &last_fsb);  in xfs_iomap_write_delay()
590 	if (last_fsb > XFS_B_TO_FSB(mp, mp->m_super->s_maxbytes))  in xfs_iomap_write_delay()
591 		last_fsb = XFS_B_TO_FSB(mp, mp->m_super->s_maxbytes);  in xfs_iomap_write_delay()
651 	xfs_mount_t	*mp = ip->i_mount;  in xfs_iomap_write_allocate()  local
669 	offset_fsb = XFS_B_TO_FSBT(mp, offset);  in xfs_iomap_write_allocate()
673 	XFS_STATS_ADD(xs_xstrat_bytes, XFS_FSB_TO_B(mp, count_fsb));  in xfs_iomap_write_allocate()
687 			tp = xfs_trans_alloc(mp, XFS_TRANS_STRAT_WRITE);  in xfs_iomap_write_allocate()
689 			nres = XFS_EXTENTADD_SPACE_RES(mp, XFS_DATA_FORK);  in xfs_iomap_write_allocate()
690 			error = xfs_trans_reserve(tp, &M_RES(mp)->tr_write,  in xfs_iomap_write_allocate()
733 			end_fsb = XFS_B_TO_FSB(mp, XFS_ISIZE(ip));  in xfs_iomap_write_allocate()
806 	xfs_mount_t	*mp = ip->i_mount;  in xfs_iomap_write_unwritten()  local
822 	offset_fsb = XFS_B_TO_FSBT(mp, offset);  in xfs_iomap_write_unwritten()
823 	count_fsb = XFS_B_TO_FSB(mp, (xfs_ufsize_t)offset + count);  in xfs_iomap_write_unwritten()
836 	resblks = XFS_DIOSTRAT_SPACE_RES(mp, 0) << 1;  in xfs_iomap_write_unwritten()
850 		sb_start_intwrite(mp->m_super);  in xfs_iomap_write_unwritten()
851 		tp = _xfs_trans_alloc(mp, XFS_TRANS_STRAT_WRITE, KM_NOFS);  in xfs_iomap_write_unwritten()
853 		error = xfs_trans_reserve(tp, &M_RES(mp)->tr_write,  in xfs_iomap_write_unwritten()
879 		i_size = XFS_FSB_TO_B(mp, offset_fsb + count_fsb);  in xfs_iomap_write_unwritten()