24 static bool ff_layout_has_available_ds(struct pnfs_layout_segment *lseg);
376 nfs4_ff_layout_prepare_ds(struct pnfs_layout_segment *lseg,  in nfs4_ff_layout_prepare_ds()  argument
382 	struct inode *ino = lseg->pls_layout->plh_inode;  in nfs4_ff_layout_prepare_ds()
387 	if (!ff_layout_init_mirror_ds(lseg->pls_layout, mirror, dss_id))  in nfs4_ff_layout_prepare_ds()
422 	ff_layout_track_ds_error(FF_LAYOUT_FROM_HDR(lseg->pls_layout),  in nfs4_ff_layout_prepare_ds()
423 				 mirror, dss_id, lseg->pls_range.offset,  in nfs4_ff_layout_prepare_ds()
424 				 lseg->pls_range.length, NFS4ERR_NXIO,  in nfs4_ff_layout_prepare_ds()
426 	ff_layout_send_layouterror(lseg);  in nfs4_ff_layout_prepare_ds()
427 	if (fail_return || !ff_layout_has_available_ds(lseg))  in nfs4_ff_layout_prepare_ds()
428 		pnfs_error_mark_layout_for_return(ino, lseg);  in nfs4_ff_layout_prepare_ds()
569 static bool ff_read_layout_has_available_ds(struct pnfs_layout_segment *lseg)  in ff_read_layout_has_available_ds()  argument
575 	for (idx = 0; idx < FF_LAYOUT_MIRROR_COUNT(lseg); idx++) {  in ff_read_layout_has_available_ds()
576 		mirror = FF_LAYOUT_COMP(lseg, idx);  in ff_read_layout_has_available_ds()
593 static bool ff_rw_layout_has_available_ds(struct pnfs_layout_segment *lseg)  in ff_rw_layout_has_available_ds()  argument
599 	for (idx = 0; idx < FF_LAYOUT_MIRROR_COUNT(lseg); idx++) {  in ff_rw_layout_has_available_ds()
600 		mirror = FF_LAYOUT_COMP(lseg, idx);  in ff_rw_layout_has_available_ds()
614 	return FF_LAYOUT_MIRROR_COUNT(lseg) != 0;  in ff_rw_layout_has_available_ds()
617 static bool ff_layout_has_available_ds(struct pnfs_layout_segment *lseg)  in ff_layout_has_available_ds()  argument
619 	if (lseg->pls_range.iomode == IOMODE_READ)  in ff_layout_has_available_ds()
620 		return  ff_read_layout_has_available_ds(lseg);  in ff_layout_has_available_ds()
622 	return ff_rw_layout_has_available_ds(lseg);  in ff_layout_has_available_ds()
625 bool ff_layout_avoid_mds_available_ds(struct pnfs_layout_segment *lseg)  in ff_layout_avoid_mds_available_ds()  argument
627 	return ff_layout_no_fallback_to_mds(lseg) ||  in ff_layout_avoid_mds_available_ds()
628 	       ff_layout_has_available_ds(lseg);  in ff_layout_avoid_mds_available_ds()
631 bool ff_layout_avoid_read_on_rw(struct pnfs_layout_segment *lseg)  in ff_layout_avoid_read_on_rw()  argument
633 	return lseg->pls_range.iomode == IOMODE_RW &&  in ff_layout_avoid_read_on_rw()
634 	       ff_layout_no_read_on_rw(lseg);  in ff_layout_avoid_read_on_rw()