Lines Matching full:lo
57 static void pnfs_layoutreturn_before_put_layout_hdr(struct pnfs_layout_hdr *lo);
58 static void pnfs_free_returned_lsegs(struct pnfs_layout_hdr *lo,
264 pnfs_get_layout_hdr(struct pnfs_layout_hdr *lo) in pnfs_get_layout_hdr() argument
266 refcount_inc(&lo->plh_refcount); in pnfs_get_layout_hdr()
277 pnfs_free_layout_hdr(struct pnfs_layout_hdr *lo) in pnfs_free_layout_hdr() argument
279 struct nfs_server *server = NFS_SERVER(lo->plh_inode); in pnfs_free_layout_hdr()
282 if (test_and_clear_bit(NFS_LAYOUT_HASHED, &lo->plh_flags)) { in pnfs_free_layout_hdr()
286 list_del_rcu(&lo->plh_layouts); in pnfs_free_layout_hdr()
289 put_cred(lo->plh_lc_cred); in pnfs_free_layout_hdr()
290 return ld->free_layout_hdr(lo); in pnfs_free_layout_hdr()
294 pnfs_detach_layout_hdr(struct pnfs_layout_hdr *lo) in pnfs_detach_layout_hdr() argument
296 struct nfs_inode *nfsi = NFS_I(lo->plh_inode); in pnfs_detach_layout_hdr()
297 dprintk("%s: freeing layout cache %p\n", __func__, lo); in pnfs_detach_layout_hdr()
305 pnfs_put_layout_hdr(struct pnfs_layout_hdr *lo) in pnfs_put_layout_hdr() argument
310 if (!lo) in pnfs_put_layout_hdr()
312 inode = lo->plh_inode; in pnfs_put_layout_hdr()
313 pnfs_layoutreturn_before_put_layout_hdr(lo); in pnfs_put_layout_hdr()
315 if (refcount_dec_and_lock(&lo->plh_refcount, &inode->i_lock)) { in pnfs_put_layout_hdr()
316 if (!list_empty(&lo->plh_segs)) in pnfs_put_layout_hdr()
318 pnfs_detach_layout_hdr(lo); in pnfs_put_layout_hdr()
321 pnfs_free_layout_hdr(lo); in pnfs_put_layout_hdr()
324 wake_up_var(lo); in pnfs_put_layout_hdr()
329 pnfs_grab_inode_layout_hdr(struct pnfs_layout_hdr *lo) in pnfs_grab_inode_layout_hdr() argument
331 struct inode *inode = igrab(lo->plh_inode); in pnfs_grab_inode_layout_hdr()
334 set_bit(NFS_LAYOUT_INODE_FREEING, &lo->plh_flags); in pnfs_grab_inode_layout_hdr()
347 static void pnfs_barrier_update(struct pnfs_layout_hdr *lo, u32 newseq) in pnfs_barrier_update() argument
349 if (pnfs_seqid_is_newer(newseq, lo->plh_barrier) || !lo->plh_barrier) in pnfs_barrier_update()
350 lo->plh_barrier = newseq; in pnfs_barrier_update()
354 pnfs_set_plh_return_info(struct pnfs_layout_hdr *lo, enum pnfs_iomode iomode, in pnfs_set_plh_return_info() argument
357 if (lo->plh_return_iomode != 0 && lo->plh_return_iomode != iomode) in pnfs_set_plh_return_info()
359 lo->plh_return_iomode = iomode; in pnfs_set_plh_return_info()
360 set_bit(NFS_LAYOUT_RETURN_REQUESTED, &lo->plh_flags); in pnfs_set_plh_return_info()
362 * We must set lo->plh_return_seq to avoid livelocks with in pnfs_set_plh_return_info()
366 seq = be32_to_cpu(lo->plh_stateid.seqid); in pnfs_set_plh_return_info()
367 if (!lo->plh_return_seq || pnfs_seqid_is_newer(seq, lo->plh_return_seq)) in pnfs_set_plh_return_info()
368 lo->plh_return_seq = seq; in pnfs_set_plh_return_info()
369 pnfs_barrier_update(lo, seq); in pnfs_set_plh_return_info()
373 pnfs_clear_layoutreturn_info(struct pnfs_layout_hdr *lo) in pnfs_clear_layoutreturn_info() argument
376 lo->plh_return_iomode = 0; in pnfs_clear_layoutreturn_info()
377 lo->plh_return_seq = 0; in pnfs_clear_layoutreturn_info()
378 clear_bit(NFS_LAYOUT_RETURN_REQUESTED, &lo->plh_flags); in pnfs_clear_layoutreturn_info()
379 list_for_each_entry(lseg, &lo->plh_segs, pls_list) { in pnfs_clear_layoutreturn_info()
382 pnfs_set_plh_return_info(lo, lseg->pls_range.iomode, 0); in pnfs_clear_layoutreturn_info()
386 static void pnfs_clear_layoutreturn_waitbit(struct pnfs_layout_hdr *lo) in pnfs_clear_layoutreturn_waitbit() argument
388 clear_bit_unlock(NFS_LAYOUT_RETURN, &lo->plh_flags); in pnfs_clear_layoutreturn_waitbit()
389 clear_bit(NFS_LAYOUT_RETURN_LOCK, &lo->plh_flags); in pnfs_clear_layoutreturn_waitbit()
391 wake_up_bit(&lo->plh_flags, NFS_LAYOUT_RETURN); in pnfs_clear_layoutreturn_waitbit()
392 rpc_wake_up(&NFS_SERVER(lo->plh_inode)->roc_rpcwaitq); in pnfs_clear_layoutreturn_waitbit()
415 struct pnfs_layout_hdr *lo; in nfs4_layout_refresh_old_stateid() local
426 lo = NFS_I(inode)->layout; in nfs4_layout_refresh_old_stateid()
427 if (lo && pnfs_layout_is_valid(lo) && in nfs4_layout_refresh_old_stateid()
428 nfs4_stateid_match_other(dst, &lo->plh_stateid)) { in nfs4_layout_refresh_old_stateid()
430 if (!nfs4_stateid_is_newer(&lo->plh_stateid, dst)) { in nfs4_layout_refresh_old_stateid()
436 err = pnfs_mark_matching_lsegs_return(lo, &head, &range, 0); in nfs4_layout_refresh_old_stateid()
438 dst->seqid = lo->plh_stateid.seqid; in nfs4_layout_refresh_old_stateid()
457 pnfs_mark_layout_stateid_invalid(struct pnfs_layout_hdr *lo, in pnfs_mark_layout_stateid_invalid() argument
467 set_bit(NFS_LAYOUT_INVALID_STID, &lo->plh_flags); in pnfs_mark_layout_stateid_invalid()
468 list_for_each_entry_safe(lseg, next, &lo->plh_segs, pls_list) in pnfs_mark_layout_stateid_invalid()
470 pnfs_clear_layoutreturn_info(lo); in pnfs_mark_layout_stateid_invalid()
471 pnfs_free_returned_lsegs(lo, lseg_list, &range, 0); in pnfs_mark_layout_stateid_invalid()
472 set_bit(NFS_LAYOUT_DRAIN, &lo->plh_flags); in pnfs_mark_layout_stateid_invalid()
473 if (test_bit(NFS_LAYOUT_RETURN, &lo->plh_flags) && in pnfs_mark_layout_stateid_invalid()
474 !test_and_set_bit(NFS_LAYOUT_RETURN_LOCK, &lo->plh_flags)) in pnfs_mark_layout_stateid_invalid()
475 pnfs_clear_layoutreturn_waitbit(lo); in pnfs_mark_layout_stateid_invalid()
476 return !list_empty(&lo->plh_segs); in pnfs_mark_layout_stateid_invalid()
487 pnfs_layout_set_fail_bit(struct pnfs_layout_hdr *lo, int fail_bit) in pnfs_layout_set_fail_bit() argument
489 lo->plh_retry_timestamp = jiffies; in pnfs_layout_set_fail_bit()
490 if (!test_and_set_bit(fail_bit, &lo->plh_flags)) in pnfs_layout_set_fail_bit()
491 refcount_inc(&lo->plh_refcount); in pnfs_layout_set_fail_bit()
495 pnfs_layout_clear_fail_bit(struct pnfs_layout_hdr *lo, int fail_bit) in pnfs_layout_clear_fail_bit() argument
497 if (test_and_clear_bit(fail_bit, &lo->plh_flags)) in pnfs_layout_clear_fail_bit()
498 refcount_dec(&lo->plh_refcount); in pnfs_layout_clear_fail_bit()
502 pnfs_layout_io_set_failed(struct pnfs_layout_hdr *lo, u32 iomode) in pnfs_layout_io_set_failed() argument
504 struct inode *inode = lo->plh_inode; in pnfs_layout_io_set_failed()
513 pnfs_layout_set_fail_bit(lo, pnfs_iomode_to_fail_bit(iomode)); in pnfs_layout_io_set_failed()
514 pnfs_mark_matching_lsegs_invalid(lo, &head, &range, 0); in pnfs_layout_io_set_failed()
522 pnfs_layout_io_test_failed(struct pnfs_layout_hdr *lo, u32 iomode) in pnfs_layout_io_test_failed() argument
527 if (test_bit(fail_bit, &lo->plh_flags) == 0) in pnfs_layout_io_test_failed()
531 if (!time_in_range(lo->plh_retry_timestamp, start, end)) { in pnfs_layout_io_test_failed()
533 pnfs_layout_clear_fail_bit(lo, fail_bit); in pnfs_layout_io_test_failed()
540 pnfs_init_lseg(struct pnfs_layout_hdr *lo, struct pnfs_layout_segment *lseg, in pnfs_init_lseg() argument
549 lseg->pls_layout = lo; in pnfs_init_lseg()
563 pnfs_layout_remove_lseg(struct pnfs_layout_hdr *lo, in pnfs_layout_remove_lseg() argument
569 refcount_dec(&lo->plh_refcount); in pnfs_layout_remove_lseg()
572 if (list_empty(&lo->plh_segs) && in pnfs_layout_remove_lseg()
573 !test_bit(NFS_LAYOUT_RETURN_REQUESTED, &lo->plh_flags) && in pnfs_layout_remove_lseg()
574 !test_bit(NFS_LAYOUT_RETURN, &lo->plh_flags)) { in pnfs_layout_remove_lseg()
575 if (atomic_read(&lo->plh_outstanding) == 0) in pnfs_layout_remove_lseg()
576 set_bit(NFS_LAYOUT_INVALID_STID, &lo->plh_flags); in pnfs_layout_remove_lseg()
577 clear_bit(NFS_LAYOUT_BULK_RECALL, &lo->plh_flags); in pnfs_layout_remove_lseg()
582 pnfs_cache_lseg_for_layoutreturn(struct pnfs_layout_hdr *lo, in pnfs_cache_lseg_for_layoutreturn() argument
586 pnfs_layout_is_valid(lo)) { in pnfs_cache_lseg_for_layoutreturn()
587 pnfs_set_plh_return_info(lo, lseg->pls_range.iomode, 0); in pnfs_cache_lseg_for_layoutreturn()
588 list_move_tail(&lseg->pls_list, &lo->plh_return_segs); in pnfs_cache_lseg_for_layoutreturn()
597 struct pnfs_layout_hdr *lo; in pnfs_put_lseg() local
607 lo = lseg->pls_layout; in pnfs_put_lseg()
608 inode = lo->plh_inode; in pnfs_put_lseg()
615 pnfs_get_layout_hdr(lo); in pnfs_put_lseg()
616 pnfs_layout_remove_lseg(lo, lseg); in pnfs_put_lseg()
617 if (pnfs_cache_lseg_for_layoutreturn(lo, lseg)) in pnfs_put_lseg()
621 pnfs_put_layout_hdr(lo); in pnfs_put_lseg()
697 * @lo: layout header containing the lsegs
711 pnfs_mark_matching_lsegs_invalid(struct pnfs_layout_hdr *lo, in pnfs_mark_matching_lsegs_invalid() argument
719 dprintk("%s:Begin lo %p\n", __func__, lo); in pnfs_mark_matching_lsegs_invalid()
721 if (list_empty(&lo->plh_segs)) in pnfs_mark_matching_lsegs_invalid()
723 list_for_each_entry_safe(lseg, next, &lo->plh_segs, pls_list) in pnfs_mark_matching_lsegs_invalid()
737 pnfs_free_returned_lsegs(struct pnfs_layout_hdr *lo, in pnfs_free_returned_lsegs() argument
744 list_for_each_entry_safe(lseg, next, &lo->plh_return_segs, pls_list) { in pnfs_free_returned_lsegs()
767 struct pnfs_layout_hdr *lo; in __pnfs_destroy_layout() local
771 lo = nfsi->layout; in __pnfs_destroy_layout()
772 if (lo) { in __pnfs_destroy_layout()
773 pnfs_get_layout_hdr(lo); in __pnfs_destroy_layout()
774 pnfs_mark_layout_stateid_invalid(lo, &tmp_list); in __pnfs_destroy_layout()
775 pnfs_layout_clear_fail_bit(lo, NFS_LAYOUT_RO_FAILED); in __pnfs_destroy_layout()
776 pnfs_layout_clear_fail_bit(lo, NFS_LAYOUT_RW_FAILED); in __pnfs_destroy_layout()
780 pnfs_put_layout_hdr(lo); in __pnfs_destroy_layout()
783 return lo; in __pnfs_destroy_layout()
793 struct pnfs_layout_hdr *lo) in pnfs_layout_removed() argument
798 ret = nfsi->layout != lo; in pnfs_layout_removed()
805 struct pnfs_layout_hdr *lo = __pnfs_destroy_layout(nfsi); in pnfs_destroy_layout_final() local
807 if (lo) in pnfs_destroy_layout_final()
808 wait_var_event(lo, pnfs_layout_removed(nfsi, lo)); in pnfs_destroy_layout_final()
815 struct pnfs_layout_hdr *lo; in pnfs_layout_add_bulk_destroy_list() local
819 lo = NFS_I(inode)->layout; in pnfs_layout_add_bulk_destroy_list()
820 if (lo != NULL && list_empty(&lo->plh_bulk_destroy)) { in pnfs_layout_add_bulk_destroy_list()
821 pnfs_get_layout_hdr(lo); in pnfs_layout_add_bulk_destroy_list()
822 list_add(&lo->plh_bulk_destroy, layout_list); in pnfs_layout_add_bulk_destroy_list()
837 struct pnfs_layout_hdr *lo, *next; in pnfs_layout_bulk_destroy_byserver_locked() local
840 list_for_each_entry_safe(lo, next, &server->layouts, plh_layouts) { in pnfs_layout_bulk_destroy_byserver_locked()
841 if (test_bit(NFS_LAYOUT_INVALID_STID, &lo->plh_flags) || in pnfs_layout_bulk_destroy_byserver_locked()
842 test_bit(NFS_LAYOUT_INODE_FREEING, &lo->plh_flags) || in pnfs_layout_bulk_destroy_byserver_locked()
843 !list_empty(&lo->plh_bulk_destroy)) in pnfs_layout_bulk_destroy_byserver_locked()
848 inode = pnfs_grab_inode_layout_hdr(lo); in pnfs_layout_bulk_destroy_byserver_locked()
850 if (test_and_clear_bit(NFS_LAYOUT_HASHED, &lo->plh_flags)) in pnfs_layout_bulk_destroy_byserver_locked()
851 list_del_rcu(&lo->plh_layouts); in pnfs_layout_bulk_destroy_byserver_locked()
874 struct pnfs_layout_hdr *lo; in pnfs_layout_free_bulk_destroy_list() local
880 lo = list_entry(layout_list->next, struct pnfs_layout_hdr, in pnfs_layout_free_bulk_destroy_list()
883 lo->plh_inode->i_ino); in pnfs_layout_free_bulk_destroy_list()
884 inode = lo->plh_inode; in pnfs_layout_free_bulk_destroy_list()
889 list_del_init(&lo->plh_bulk_destroy); in pnfs_layout_free_bulk_destroy_list()
890 if (pnfs_mark_layout_stateid_invalid(lo, &lseg_list)) { in pnfs_layout_free_bulk_destroy_list()
892 set_bit(NFS_LAYOUT_BULK_RECALL, &lo->plh_flags); in pnfs_layout_free_bulk_destroy_list()
899 pnfs_put_layout_hdr(lo); in pnfs_layout_free_bulk_destroy_list()
970 pnfs_set_layout_cred(struct pnfs_layout_hdr *lo, const struct cred *cred) in pnfs_set_layout_cred() argument
974 if (cred && cred_fscmp(lo->plh_lc_cred, cred) != 0) { in pnfs_set_layout_cred()
975 old = xchg(&lo->plh_lc_cred, get_cred(cred)); in pnfs_set_layout_cred()
980 /* update lo->plh_stateid with new if is more recent */
982 pnfs_set_layout_stateid(struct pnfs_layout_hdr *lo, const nfs4_stateid *new, in pnfs_set_layout_stateid() argument
985 u32 oldseq = be32_to_cpu(lo->plh_stateid.seqid); in pnfs_set_layout_stateid()
988 if (!pnfs_layout_is_valid(lo)) { in pnfs_set_layout_stateid()
989 pnfs_set_layout_cred(lo, cred); in pnfs_set_layout_stateid()
990 nfs4_stateid_copy(&lo->plh_stateid, new); in pnfs_set_layout_stateid()
991 lo->plh_barrier = newseq; in pnfs_set_layout_stateid()
992 pnfs_clear_layoutreturn_info(lo); in pnfs_set_layout_stateid()
993 clear_bit(NFS_LAYOUT_INVALID_STID, &lo->plh_flags); in pnfs_set_layout_stateid()
998 nfs4_stateid_copy(&lo->plh_stateid, new); in pnfs_set_layout_stateid()
1001 pnfs_barrier_update(lo, newseq); in pnfs_set_layout_stateid()
1009 if (atomic_read(&lo->plh_outstanding) == 1) in pnfs_set_layout_stateid()
1010 pnfs_barrier_update(lo, be32_to_cpu(lo->plh_stateid.seqid)); in pnfs_set_layout_stateid()
1014 pnfs_layout_stateid_blocked(const struct pnfs_layout_hdr *lo, in pnfs_layout_stateid_blocked() argument
1019 return lo->plh_barrier && pnfs_seqid_is_newer(lo->plh_barrier, seqid); in pnfs_layout_stateid_blocked()
1024 pnfs_layoutgets_blocked(const struct pnfs_layout_hdr *lo) in pnfs_layoutgets_blocked() argument
1026 return lo->plh_block_lgets || in pnfs_layoutgets_blocked()
1027 test_bit(NFS_LAYOUT_BULK_RECALL, &lo->plh_flags); in pnfs_layoutgets_blocked()
1168 void pnfs_layoutreturn_free_lsegs(struct pnfs_layout_hdr *lo, in pnfs_layoutreturn_free_lsegs() argument
1173 struct inode *inode = lo->plh_inode; in pnfs_layoutreturn_free_lsegs()
1177 if (!pnfs_layout_is_valid(lo) || !arg_stateid || in pnfs_layoutreturn_free_lsegs()
1178 !nfs4_stateid_match_other(&lo->plh_stateid, arg_stateid)) in pnfs_layoutreturn_free_lsegs()
1183 pnfs_mark_matching_lsegs_invalid(lo, &freeme, range, seq); in pnfs_layoutreturn_free_lsegs()
1184 pnfs_free_returned_lsegs(lo, &freeme, range, seq); in pnfs_layoutreturn_free_lsegs()
1185 pnfs_set_layout_stateid(lo, stateid, NULL, true); in pnfs_layoutreturn_free_lsegs()
1187 pnfs_mark_layout_stateid_invalid(lo, &freeme); in pnfs_layoutreturn_free_lsegs()
1189 pnfs_clear_layoutreturn_waitbit(lo); in pnfs_layoutreturn_free_lsegs()
1196 pnfs_prepare_layoutreturn(struct pnfs_layout_hdr *lo, in pnfs_prepare_layoutreturn() argument
1202 if (atomic_read(&lo->plh_outstanding) != 0) in pnfs_prepare_layoutreturn()
1204 if (test_and_set_bit(NFS_LAYOUT_RETURN_LOCK, &lo->plh_flags)) in pnfs_prepare_layoutreturn()
1206 set_bit(NFS_LAYOUT_RETURN, &lo->plh_flags); in pnfs_prepare_layoutreturn()
1207 pnfs_get_layout_hdr(lo); in pnfs_prepare_layoutreturn()
1208 nfs4_stateid_copy(stateid, &lo->plh_stateid); in pnfs_prepare_layoutreturn()
1209 *cred = get_cred(lo->plh_lc_cred); in pnfs_prepare_layoutreturn()
1210 if (test_bit(NFS_LAYOUT_RETURN_REQUESTED, &lo->plh_flags)) { in pnfs_prepare_layoutreturn()
1211 if (lo->plh_return_seq != 0) in pnfs_prepare_layoutreturn()
1212 stateid->seqid = cpu_to_be32(lo->plh_return_seq); in pnfs_prepare_layoutreturn()
1214 *iomode = lo->plh_return_iomode; in pnfs_prepare_layoutreturn()
1215 pnfs_clear_layoutreturn_info(lo); in pnfs_prepare_layoutreturn()
1218 pnfs_barrier_update(lo, be32_to_cpu(stateid->seqid)); in pnfs_prepare_layoutreturn()
1224 struct pnfs_layout_hdr *lo, in pnfs_init_layoutreturn_args() argument
1228 struct inode *inode = lo->plh_inode; in pnfs_init_layoutreturn_args()
1235 args->layout = lo; in pnfs_init_layoutreturn_args()
1240 pnfs_send_layoutreturn(struct pnfs_layout_hdr *lo, in pnfs_send_layoutreturn() argument
1246 struct inode *ino = lo->plh_inode; in pnfs_send_layoutreturn()
1257 pnfs_clear_layoutreturn_waitbit(lo); in pnfs_send_layoutreturn()
1260 pnfs_put_layout_hdr(lo); in pnfs_send_layoutreturn()
1264 pnfs_init_layoutreturn_args(&lrp->args, lo, stateid, iomode); in pnfs_send_layoutreturn()
1278 pnfs_layout_segments_returnable(struct pnfs_layout_hdr *lo, in pnfs_layout_segments_returnable() argument
1286 return pnfs_mark_matching_lsegs_return(lo, &lo->plh_return_segs, in pnfs_layout_segments_returnable()
1292 pnfs_layout_need_return(struct pnfs_layout_hdr *lo) in pnfs_layout_need_return() argument
1294 if (!test_bit(NFS_LAYOUT_RETURN_REQUESTED, &lo->plh_flags)) in pnfs_layout_need_return()
1296 return pnfs_layout_segments_returnable(lo, lo->plh_return_iomode, in pnfs_layout_need_return()
1297 lo->plh_return_seq); in pnfs_layout_need_return()
1300 static void pnfs_layoutreturn_before_put_layout_hdr(struct pnfs_layout_hdr *lo) in pnfs_layoutreturn_before_put_layout_hdr() argument
1302 struct inode *inode= lo->plh_inode; in pnfs_layoutreturn_before_put_layout_hdr()
1304 if (!test_bit(NFS_LAYOUT_RETURN_REQUESTED, &lo->plh_flags)) in pnfs_layoutreturn_before_put_layout_hdr()
1307 if (pnfs_layout_need_return(lo)) { in pnfs_layoutreturn_before_put_layout_hdr()
1313 send = pnfs_prepare_layoutreturn(lo, &stateid, &cred, &iomode); in pnfs_layoutreturn_before_put_layout_hdr()
1317 pnfs_send_layoutreturn(lo, &stateid, &cred, iomode, false); in pnfs_layoutreturn_before_put_layout_hdr()
1334 struct pnfs_layout_hdr *lo = NULL; in _pnfs_return_layout() local
1350 lo = nfsi->layout; in _pnfs_return_layout()
1351 if (!lo) { in _pnfs_return_layout()
1357 pnfs_get_layout_hdr(lo); in _pnfs_return_layout()
1359 if (test_bit(NFS_LAYOUT_RETURN_LOCK, &lo->plh_flags)) { in _pnfs_return_layout()
1361 if (wait_on_bit(&lo->plh_flags, NFS_LAYOUT_RETURN, in _pnfs_return_layout()
1366 valid_layout = pnfs_layout_is_valid(lo); in _pnfs_return_layout()
1368 pnfs_mark_matching_lsegs_return(lo, &tmp_list, &range, 0); in _pnfs_return_layout()
1371 NFS_SERVER(ino)->pnfs_curr_ld->return_range(lo, &range); in _pnfs_return_layout()
1374 if (!test_bit(NFS_LAYOUT_RETURN_REQUESTED, &lo->plh_flags) || in _pnfs_return_layout()
1381 send = pnfs_prepare_layoutreturn(lo, &stateid, &cred, NULL); in _pnfs_return_layout()
1384 status = pnfs_send_layoutreturn(lo, &stateid, &cred, IOMODE_ANY, true); in _pnfs_return_layout()
1386 wait_on_bit(&lo->plh_flags, NFS_LAYOUT_RETURN, TASK_UNINTERRUPTIBLE); in _pnfs_return_layout()
1389 pnfs_put_layout_hdr(lo); in _pnfs_return_layout()
1398 struct pnfs_layout_hdr *lo; in pnfs_commit_and_return_layout() local
1402 lo = NFS_I(inode)->layout; in pnfs_commit_and_return_layout()
1403 if (lo == NULL) { in pnfs_commit_and_return_layout()
1407 pnfs_get_layout_hdr(lo); in pnfs_commit_and_return_layout()
1409 lo->plh_block_lgets++; in pnfs_commit_and_return_layout()
1416 lo->plh_block_lgets--; in pnfs_commit_and_return_layout()
1418 pnfs_put_layout_hdr(lo); in pnfs_commit_and_return_layout()
1430 struct pnfs_layout_hdr *lo; in pnfs_roc() local
1443 lo = nfsi->layout; in pnfs_roc()
1444 if (!lo || !pnfs_layout_is_valid(lo) || in pnfs_roc()
1445 test_bit(NFS_LAYOUT_BULK_RECALL, &lo->plh_flags)) { in pnfs_roc()
1446 lo = NULL; in pnfs_roc()
1449 pnfs_get_layout_hdr(lo); in pnfs_roc()
1450 if (test_bit(NFS_LAYOUT_RETURN_LOCK, &lo->plh_flags)) { in pnfs_roc()
1453 wait_on_bit(&lo->plh_flags, NFS_LAYOUT_RETURN, in pnfs_roc()
1455 pnfs_put_layout_hdr(lo); in pnfs_roc()
1478 list_for_each_entry_safe(lseg, next, &lo->plh_segs, pls_list) { in pnfs_roc()
1489 if (!mark_lseg_invalid(lseg, &lo->plh_return_segs)) in pnfs_roc()
1491 pnfs_set_plh_return_info(lo, lseg->pls_range.iomode, 0); in pnfs_roc()
1494 if (!test_bit(NFS_LAYOUT_RETURN_REQUESTED, &lo->plh_flags)) in pnfs_roc()
1501 /* lo ref dropped in pnfs_roc_release() */ in pnfs_roc()
1502 layoutreturn = pnfs_prepare_layoutreturn(lo, &stateid, &lc_cred, &iomode); in pnfs_roc()
1508 pnfs_init_layoutreturn_args(args, lo, &stateid, iomode); in pnfs_roc()
1521 pnfs_put_layout_hdr(lo); in pnfs_roc()
1525 pnfs_send_layoutreturn(lo, &stateid, &lc_cred, iomode, true); in pnfs_roc()
1526 pnfs_put_layout_hdr(lo); in pnfs_roc()
1578 struct pnfs_layout_hdr *lo = args->layout; in pnfs_roc_release() local
1587 if (pnfs_layout_is_valid(lo) && in pnfs_roc_release()
1588 nfs4_stateid_match_other(&args->stateid, &lo->plh_stateid)) in pnfs_roc_release()
1589 pnfs_set_plh_return_info(lo, args->range.iomode, 0); in pnfs_roc_release()
1600 pnfs_layoutreturn_free_lsegs(lo, arg_stateid, &args->range, in pnfs_roc_release()
1604 pnfs_put_layout_hdr(lo); in pnfs_roc_release()
1610 struct pnfs_layout_hdr *lo; in pnfs_wait_on_layoutreturn() local
1613 /* we might not have grabbed lo reference. so need to check under in pnfs_wait_on_layoutreturn()
1616 lo = nfsi->layout; in pnfs_wait_on_layoutreturn()
1617 if (lo && test_bit(NFS_LAYOUT_RETURN, &lo->plh_flags)) { in pnfs_wait_on_layoutreturn()
1665 pnfs_generic_layout_insert_lseg(struct pnfs_layout_hdr *lo, in pnfs_generic_layout_insert_lseg() argument
1677 list_for_each_entry_safe(lp, tmp, &lo->plh_segs, pls_list) { in pnfs_generic_layout_insert_lseg()
1696 list_add_tail(&lseg->pls_list, &lo->plh_segs); in pnfs_generic_layout_insert_lseg()
1702 pnfs_get_layout_hdr(lo); in pnfs_generic_layout_insert_lseg()
1709 pnfs_layout_insert_lseg(struct pnfs_layout_hdr *lo, in pnfs_layout_insert_lseg() argument
1713 struct inode *inode = lo->plh_inode; in pnfs_layout_insert_lseg()
1717 ld->add_lseg(lo, lseg, free_me); in pnfs_layout_insert_lseg()
1719 pnfs_generic_layout_insert_lseg(lo, lseg, in pnfs_layout_insert_lseg()
1730 struct pnfs_layout_hdr *lo; in alloc_init_layout_hdr() local
1732 lo = pnfs_alloc_layout_hdr(ino, gfp_flags); in alloc_init_layout_hdr()
1733 if (!lo) in alloc_init_layout_hdr()
1735 refcount_set(&lo->plh_refcount, 1); in alloc_init_layout_hdr()
1736 INIT_LIST_HEAD(&lo->plh_layouts); in alloc_init_layout_hdr()
1737 INIT_LIST_HEAD(&lo->plh_segs); in alloc_init_layout_hdr()
1738 INIT_LIST_HEAD(&lo->plh_return_segs); in alloc_init_layout_hdr()
1739 INIT_LIST_HEAD(&lo->plh_bulk_destroy); in alloc_init_layout_hdr()
1740 lo->plh_inode = ino; in alloc_init_layout_hdr()
1741 lo->plh_lc_cred = get_cred(ctx->cred); in alloc_init_layout_hdr()
1742 lo->plh_flags |= 1 << NFS_LAYOUT_INVALID_STID; in alloc_init_layout_hdr()
1743 return lo; in alloc_init_layout_hdr()
1811 pnfs_find_lseg(struct pnfs_layout_hdr *lo, in pnfs_find_lseg() argument
1819 list_for_each_entry(lseg, &lo->plh_segs, pls_list) { in pnfs_find_lseg()
1908 static int pnfs_prepare_to_retry_layoutget(struct pnfs_layout_hdr *lo) in pnfs_prepare_to_retry_layoutget() argument
1914 pnfs_layoutcommit_inode(lo->plh_inode, false); in pnfs_prepare_to_retry_layoutget()
1915 return wait_on_bit_action(&lo->plh_flags, NFS_LAYOUT_RETURN, in pnfs_prepare_to_retry_layoutget()
1920 static void nfs_layoutget_begin(struct pnfs_layout_hdr *lo) in nfs_layoutget_begin() argument
1922 atomic_inc(&lo->plh_outstanding); in nfs_layoutget_begin()
1925 static void nfs_layoutget_end(struct pnfs_layout_hdr *lo) in nfs_layoutget_end() argument
1927 if (atomic_dec_and_test(&lo->plh_outstanding) && in nfs_layoutget_end()
1928 test_and_clear_bit(NFS_LAYOUT_DRAIN, &lo->plh_flags)) in nfs_layoutget_end()
1929 wake_up_bit(&lo->plh_flags, NFS_LAYOUT_DRAIN); in nfs_layoutget_end()
1932 static bool pnfs_is_first_layoutget(struct pnfs_layout_hdr *lo) in pnfs_is_first_layoutget() argument
1934 return test_bit(NFS_LAYOUT_FIRST_LAYOUTGET, &lo->plh_flags); in pnfs_is_first_layoutget()
1937 static void pnfs_clear_first_layoutget(struct pnfs_layout_hdr *lo) in pnfs_clear_first_layoutget() argument
1939 unsigned long *bitlock = &lo->plh_flags; in pnfs_clear_first_layoutget()
1946 static void _add_to_server_list(struct pnfs_layout_hdr *lo, in _add_to_server_list() argument
1949 if (!test_and_set_bit(NFS_LAYOUT_HASHED, &lo->plh_flags)) { in _add_to_server_list()
1952 /* The lo must be on the clp list if there is any in _add_to_server_list()
1956 list_add_tail_rcu(&lo->plh_layouts, &server->layouts); in _add_to_server_list()
1982 struct pnfs_layout_hdr *lo = NULL; in pnfs_update_layout() local
1991 trace_pnfs_update_layout(ino, pos, count, iomode, lo, lseg, in pnfs_update_layout()
1997 trace_pnfs_update_layout(ino, pos, count, iomode, lo, lseg, in pnfs_update_layout()
2008 lo = pnfs_find_alloc_layout(ino, ctx, gfp_flags); in pnfs_update_layout()
2009 if (lo == NULL) { in pnfs_update_layout()
2012 trace_pnfs_update_layout(ino, pos, count, iomode, lo, lseg, in pnfs_update_layout()
2018 if (test_bit(NFS_LAYOUT_BULK_RECALL, &lo->plh_flags)) { in pnfs_update_layout()
2019 trace_pnfs_update_layout(ino, pos, count, iomode, lo, lseg, in pnfs_update_layout()
2026 if (pnfs_layout_io_test_failed(lo, iomode)) { in pnfs_update_layout()
2027 trace_pnfs_update_layout(ino, pos, count, iomode, lo, lseg, in pnfs_update_layout()
2036 if (test_bit(NFS_LAYOUT_DRAIN, &lo->plh_flags) && in pnfs_update_layout()
2037 atomic_read(&lo->plh_outstanding) != 0) { in pnfs_update_layout()
2039 lseg = ERR_PTR(wait_on_bit(&lo->plh_flags, NFS_LAYOUT_DRAIN, in pnfs_update_layout()
2043 pnfs_put_layout_hdr(lo); in pnfs_update_layout()
2051 if (test_bit(NFS_LAYOUT_RETURN, &lo->plh_flags)) { in pnfs_update_layout()
2054 lseg = ERR_PTR(pnfs_prepare_to_retry_layoutget(lo)); in pnfs_update_layout()
2056 pnfs_put_layout_hdr(lo); in pnfs_update_layout()
2058 trace_pnfs_update_layout(ino, pos, count, iomode, lo, in pnfs_update_layout()
2063 trace_pnfs_update_layout(ino, pos, count, iomode, lo, lseg, in pnfs_update_layout()
2068 lseg = pnfs_find_lseg(lo, &arg, strict_iomode); in pnfs_update_layout()
2070 trace_pnfs_update_layout(ino, pos, count, iomode, lo, lseg, in pnfs_update_layout()
2080 if (test_bit(NFS_LAYOUT_INVALID_STID, &lo->plh_flags)) { in pnfs_update_layout()
2088 &lo->plh_flags)) { in pnfs_update_layout()
2090 lseg = ERR_PTR(wait_on_bit(&lo->plh_flags, in pnfs_update_layout()
2095 pnfs_put_layout_hdr(lo); in pnfs_update_layout()
2108 iomode, lo, lseg, in pnfs_update_layout()
2111 pnfs_clear_first_layoutget(lo); in pnfs_update_layout()
2112 pnfs_put_layout_hdr(lo); in pnfs_update_layout()
2117 nfs4_stateid_copy(&stateid, &lo->plh_stateid); in pnfs_update_layout()
2120 if (pnfs_layoutgets_blocked(lo)) { in pnfs_update_layout()
2121 trace_pnfs_update_layout(ino, pos, count, iomode, lo, lseg, in pnfs_update_layout()
2125 nfs_layoutget_begin(lo); in pnfs_update_layout()
2128 _add_to_server_list(lo, server); in pnfs_update_layout()
2141 trace_pnfs_update_layout(ino, pos, count, iomode, lo, NULL, in pnfs_update_layout()
2143 nfs_layoutget_end(lo); in pnfs_update_layout()
2148 trace_pnfs_update_layout(ino, pos, count, iomode, lo, lseg, in pnfs_update_layout()
2150 nfs_layoutget_end(lo); in pnfs_update_layout()
2163 lo, pnfs_iomode_to_fail_bit(iomode)); in pnfs_update_layout()
2168 pnfs_layout_clear_fail_bit(lo, pnfs_iomode_to_fail_bit(iomode)); in pnfs_update_layout()
2175 pnfs_clear_first_layoutget(lo); in pnfs_update_layout()
2177 iomode, lo, lseg, PNFS_UPDATE_LAYOUT_RETRY); in pnfs_update_layout()
2178 pnfs_put_layout_hdr(lo); in pnfs_update_layout()
2182 pnfs_layout_clear_fail_bit(lo, pnfs_iomode_to_fail_bit(iomode)); in pnfs_update_layout()
2187 pnfs_clear_first_layoutget(lo); in pnfs_update_layout()
2188 trace_pnfs_update_layout(ino, pos, count, iomode, lo, lseg, in pnfs_update_layout()
2190 pnfs_put_layout_hdr(lo); in pnfs_update_layout()
2230 struct pnfs_layout_hdr *lo; in _pnfs_grab_empty_layout() local
2233 lo = pnfs_find_alloc_layout(ino, ctx, GFP_KERNEL); in _pnfs_grab_empty_layout()
2234 if (!lo) in _pnfs_grab_empty_layout()
2236 if (!test_bit(NFS_LAYOUT_INVALID_STID, &lo->plh_flags)) in _pnfs_grab_empty_layout()
2238 if (test_bit(NFS_LAYOUT_RETURN, &lo->plh_flags)) in _pnfs_grab_empty_layout()
2240 if (pnfs_layoutgets_blocked(lo)) in _pnfs_grab_empty_layout()
2242 if (test_and_set_bit(NFS_LAYOUT_FIRST_LAYOUTGET, &lo->plh_flags)) in _pnfs_grab_empty_layout()
2244 nfs_layoutget_begin(lo); in _pnfs_grab_empty_layout()
2246 _add_to_server_list(lo, NFS_SERVER(ino)); in _pnfs_grab_empty_layout()
2247 return lo; in _pnfs_grab_empty_layout()
2251 pnfs_put_layout_hdr(lo); in _pnfs_grab_empty_layout()
2266 struct pnfs_layout_hdr *lo; in _lgopen_prepare_attached() local
2273 lo = _pnfs_grab_empty_layout(ino, ctx); in _lgopen_prepare_attached()
2274 if (!lo) in _lgopen_prepare_attached()
2279 pnfs_clear_first_layoutget(lo); in _lgopen_prepare_attached()
2280 nfs_layoutget_end(lo); in _lgopen_prepare_attached()
2281 pnfs_put_layout_hdr(lo); in _lgopen_prepare_attached()
2329 struct pnfs_layout_hdr *lo; in pnfs_parse_lgopen() local
2360 lo = _pnfs_grab_empty_layout(ino, ctx); in pnfs_parse_lgopen()
2361 if (!lo) in pnfs_parse_lgopen()
2365 lo = NFS_I(lgp->args.inode)->layout; in pnfs_parse_lgopen()
2370 pnfs_layout_clear_fail_bit(lo, pnfs_iomode_to_fail_bit(iomode)); in pnfs_parse_lgopen()
2380 struct pnfs_layout_hdr *lo = NFS_I(inode)->layout; in nfs4_lgopen_release() local
2381 pnfs_clear_first_layoutget(lo); in nfs4_lgopen_release()
2382 nfs_layoutget_end(lo); in nfs4_lgopen_release()
2391 struct pnfs_layout_hdr *lo = NFS_I(lgp->args.inode)->layout; in pnfs_layout_process() local
2394 struct inode *ino = lo->plh_inode; in pnfs_layout_process()
2401 lseg = NFS_SERVER(ino)->pnfs_curr_ld->alloc_lseg(lo, res, lgp->gfp_flags); in pnfs_layout_process()
2411 pnfs_init_lseg(lo, lseg, &res->range, &res->stateid); in pnfs_layout_process()
2414 if (pnfs_layoutgets_blocked(lo)) { in pnfs_layout_process()
2419 if (test_bit(NFS_LAYOUT_DRAIN, &lo->plh_flags) && in pnfs_layout_process()
2420 !pnfs_is_first_layoutget(lo)) in pnfs_layout_process()
2423 if (nfs4_stateid_match_other(&lo->plh_stateid, &res->stateid)) { in pnfs_layout_process()
2425 if (pnfs_layout_stateid_blocked(lo, &res->stateid)) { in pnfs_layout_process()
2426 if (!pnfs_layout_is_valid(lo)) in pnfs_layout_process()
2427 lo->plh_barrier = 0; in pnfs_layout_process()
2431 pnfs_set_layout_stateid(lo, &res->stateid, lgp->cred, false); in pnfs_layout_process()
2432 } else if (pnfs_layout_is_valid(lo)) { in pnfs_layout_process()
2441 pnfs_set_plh_return_info(lo, IOMODE_ANY, 0); in pnfs_layout_process()
2442 pnfs_mark_matching_lsegs_return(lo, &lo->plh_return_segs, in pnfs_layout_process()
2447 pnfs_set_layout_stateid(lo, &res->stateid, lgp->cred, true); in pnfs_layout_process()
2451 pnfs_layout_insert_lseg(lo, lseg, &free_me); in pnfs_layout_process()
2463 lseg->pls_layout = lo; in pnfs_layout_process()
2471 * @lo: pointer to layout header
2486 pnfs_mark_matching_lsegs_return(struct pnfs_layout_hdr *lo, in pnfs_mark_matching_lsegs_return() argument
2494 dprintk("%s:Begin lo %p\n", __func__, lo); in pnfs_mark_matching_lsegs_return()
2496 assert_spin_locked(&lo->plh_inode->i_lock); in pnfs_mark_matching_lsegs_return()
2498 if (test_bit(NFS_LAYOUT_RETURN_REQUESTED, &lo->plh_flags)) in pnfs_mark_matching_lsegs_return()
2499 tmp_list = &lo->plh_return_segs; in pnfs_mark_matching_lsegs_return()
2501 list_for_each_entry_safe(lseg, next, &lo->plh_segs, pls_list) in pnfs_mark_matching_lsegs_return()
2509 tmp_list = &lo->plh_return_segs; in pnfs_mark_matching_lsegs_return()
2517 pnfs_set_plh_return_info(lo, return_range->iomode, seq); in pnfs_mark_matching_lsegs_return()
2521 if (!list_empty(&lo->plh_return_segs)) { in pnfs_mark_matching_lsegs_return()
2522 pnfs_set_plh_return_info(lo, return_range->iomode, seq); in pnfs_mark_matching_lsegs_return()
2533 struct pnfs_layout_hdr *lo; in pnfs_mark_layout_for_return() local
2537 lo = NFS_I(inode)->layout; in pnfs_mark_layout_for_return()
2538 if (!pnfs_layout_is_valid(lo)) { in pnfs_mark_layout_for_return()
2542 pnfs_set_plh_return_info(lo, range->iomode, 0); in pnfs_mark_layout_for_return()
2548 if (pnfs_mark_matching_lsegs_return(lo, &lo->plh_return_segs, range, 0) != -EBUSY) { in pnfs_mark_layout_for_return()
2553 return_now = pnfs_prepare_layoutreturn(lo, &stateid, &cred, &iomode); in pnfs_mark_layout_for_return()
2556 pnfs_send_layoutreturn(lo, &stateid, &cred, iomode, false); in pnfs_mark_layout_for_return()
2577 pnfs_layout_can_be_returned(struct pnfs_layout_hdr *lo) in pnfs_layout_can_be_returned() argument
2579 return pnfs_layout_is_valid(lo) && in pnfs_layout_can_be_returned()
2580 !test_bit(NFS_LAYOUT_INODE_FREEING, &lo->plh_flags) && in pnfs_layout_can_be_returned()
2581 !test_bit(NFS_LAYOUT_RETURN, &lo->plh_flags); in pnfs_layout_can_be_returned()
2585 pnfs_find_first_lseg(struct pnfs_layout_hdr *lo, in pnfs_find_first_lseg() argument
2591 list_for_each_entry(lseg, &lo->plh_segs, pls_list) { in pnfs_find_first_lseg()
2606 pnfs_should_return_unused_layout(struct pnfs_layout_hdr *lo, in pnfs_should_return_unused_layout() argument
2613 if (!pnfs_layout_can_be_returned(lo) || in pnfs_should_return_unused_layout()
2614 !pnfs_find_first_lseg(lo, range, range->iomode)) in pnfs_should_return_unused_layout()
2617 head = &NFS_I(lo->plh_inode)->open_files; in pnfs_should_return_unused_layout()
2630 if (pnfs_find_first_lseg(lo, range, IOMODE_READ)) in pnfs_should_return_unused_layout()
2641 struct pnfs_layout_hdr *lo; in pnfs_layout_return_unused_byserver() local
2648 list_for_each_entry_rcu(lo, &server->layouts, plh_layouts) { in pnfs_layout_return_unused_byserver()
2649 inode = lo->plh_inode; in pnfs_layout_return_unused_byserver()
2650 if (!inode || !pnfs_layout_can_be_returned(lo) || in pnfs_layout_return_unused_byserver()
2651 test_bit(NFS_LAYOUT_RETURN_REQUESTED, &lo->plh_flags)) in pnfs_layout_return_unused_byserver()
2654 if (!lo->plh_inode || in pnfs_layout_return_unused_byserver()
2655 !pnfs_should_return_unused_layout(lo, range)) { in pnfs_layout_return_unused_byserver()
2659 pnfs_get_layout_hdr(lo); in pnfs_layout_return_unused_byserver()
2660 pnfs_set_plh_return_info(lo, range->iomode, 0); in pnfs_layout_return_unused_byserver()
2661 if (pnfs_mark_matching_lsegs_return(lo, &lo->plh_return_segs, in pnfs_layout_return_unused_byserver()
2663 !pnfs_prepare_layoutreturn(lo, &stateid, &cred, &iomode)) { in pnfs_layout_return_unused_byserver()
2666 pnfs_put_layout_hdr(lo); in pnfs_layout_return_unused_byserver()
2672 pnfs_send_layoutreturn(lo, &stateid, &cred, iomode, false); in pnfs_layout_return_unused_byserver()
2673 pnfs_put_layout_hdr(lo); in pnfs_layout_return_unused_byserver()