24 static bool ff_layout_has_available_ds(struct pnfs_layout_segment *lseg);
369 nfs4_ff_layout_prepare_ds(struct pnfs_layout_segment *lseg,  in nfs4_ff_layout_prepare_ds()  argument
374 	struct inode *ino = lseg->pls_layout->plh_inode;  in nfs4_ff_layout_prepare_ds()
379 	if (!ff_layout_init_mirror_ds(lseg->pls_layout, mirror))  in nfs4_ff_layout_prepare_ds()
414 	ff_layout_track_ds_error(FF_LAYOUT_FROM_HDR(lseg->pls_layout),  in nfs4_ff_layout_prepare_ds()
415 				 mirror, lseg->pls_range.offset,  in nfs4_ff_layout_prepare_ds()
416 				 lseg->pls_range.length, NFS4ERR_NXIO,  in nfs4_ff_layout_prepare_ds()
418 	ff_layout_send_layouterror(lseg);  in nfs4_ff_layout_prepare_ds()
419 	if (fail_return || !ff_layout_has_available_ds(lseg))  in nfs4_ff_layout_prepare_ds()
420 		pnfs_error_mark_layout_for_return(ino, lseg);  in nfs4_ff_layout_prepare_ds()
558 static bool ff_read_layout_has_available_ds(struct pnfs_layout_segment *lseg)  in ff_read_layout_has_available_ds()  argument
564 	for (idx = 0; idx < FF_LAYOUT_MIRROR_COUNT(lseg); idx++) {  in ff_read_layout_has_available_ds()
565 		mirror = FF_LAYOUT_COMP(lseg, idx);  in ff_read_layout_has_available_ds()
580 static bool ff_rw_layout_has_available_ds(struct pnfs_layout_segment *lseg)  in ff_rw_layout_has_available_ds()  argument
586 	for (idx = 0; idx < FF_LAYOUT_MIRROR_COUNT(lseg); idx++) {  in ff_rw_layout_has_available_ds()
587 		mirror = FF_LAYOUT_COMP(lseg, idx);  in ff_rw_layout_has_available_ds()
597 	return FF_LAYOUT_MIRROR_COUNT(lseg) != 0;  in ff_rw_layout_has_available_ds()
600 static bool ff_layout_has_available_ds(struct pnfs_layout_segment *lseg)  in ff_layout_has_available_ds()  argument
602 	if (lseg->pls_range.iomode == IOMODE_READ)  in ff_layout_has_available_ds()
603 		return  ff_read_layout_has_available_ds(lseg);  in ff_layout_has_available_ds()
605 	return ff_rw_layout_has_available_ds(lseg);  in ff_layout_has_available_ds()
608 bool ff_layout_avoid_mds_available_ds(struct pnfs_layout_segment *lseg)  in ff_layout_avoid_mds_available_ds()  argument
610 	return ff_layout_no_fallback_to_mds(lseg) ||  in ff_layout_avoid_mds_available_ds()
611 	       ff_layout_has_available_ds(lseg);  in ff_layout_avoid_mds_available_ds()
614 bool ff_layout_avoid_read_on_rw(struct pnfs_layout_segment *lseg)  in ff_layout_avoid_read_on_rw()  argument
616 	return lseg->pls_range.iomode == IOMODE_RW &&  in ff_layout_avoid_read_on_rw()
617 	       ff_layout_no_read_on_rw(lseg);  in ff_layout_avoid_read_on_rw()