278 	struct iomap_writepage_ctx	*wpc,  in xfs_imap_valid()  argument
282 	if (offset < wpc->iomap.offset ||  in xfs_imap_valid()
283 	    offset >= wpc->iomap.offset + wpc->iomap.length)  in xfs_imap_valid()
290 	if (wpc->iomap.flags & IOMAP_F_SHARED)  in xfs_imap_valid()
300 	if (XFS_WPC(wpc)->data_seq != READ_ONCE(ip->i_df.if_seq))  in xfs_imap_valid()
303 	    XFS_WPC(wpc)->cow_seq != READ_ONCE(ip->i_cowfp->if_seq))  in xfs_imap_valid()
318 	struct iomap_writepage_ctx *wpc,  in xfs_convert_blocks()  argument
327 		seq = &XFS_WPC(wpc)->cow_seq;  in xfs_convert_blocks()
329 		seq = &XFS_WPC(wpc)->data_seq;  in xfs_convert_blocks()
339 				&wpc->iomap, seq);  in xfs_convert_blocks()
342 	} while (wpc->iomap.offset + wpc->iomap.length <= offset);  in xfs_convert_blocks()
349 	struct iomap_writepage_ctx *wpc,  in xfs_map_blocks()  argument
383 	if (xfs_imap_valid(wpc, ip, offset))  in xfs_map_blocks()
407 		XFS_WPC(wpc)->cow_seq = READ_ONCE(ip->i_cowfp->if_seq);  in xfs_map_blocks()
418 	if (xfs_imap_valid(wpc, ip, offset)) {  in xfs_map_blocks()
430 	XFS_WPC(wpc)->data_seq = READ_ONCE(ip->i_df.if_seq);  in xfs_map_blocks()
456 	xfs_bmbt_to_iomap(ip, &wpc->iomap, &imap, 0);  in xfs_map_blocks()
460 	error = xfs_convert_blocks(wpc, ip, whichfork, offset);  in xfs_map_blocks()
483 		if (cow_offset < wpc->iomap.offset + wpc->iomap.length)  in xfs_map_blocks()
484 			wpc->iomap.length = cow_offset - wpc->iomap.offset;  in xfs_map_blocks()
487 	ASSERT(wpc->iomap.offset <= offset);  in xfs_map_blocks()
488 	ASSERT(wpc->iomap.offset + wpc->iomap.length > offset);  in xfs_map_blocks()
578 	struct xfs_writepage_ctx wpc = { };  in xfs_vm_writepage()  local
586 	return iomap_writepage(page, wbc, &wpc.ctx, &xfs_writeback_ops);  in xfs_vm_writepage()
594 	struct xfs_writepage_ctx wpc = { };  in xfs_vm_writepages()  local
604 	return iomap_writepages(mapping, wbc, &wpc.ctx, &xfs_writeback_ops);  in xfs_vm_writepages()