Lines Matching refs: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()
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_return(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()
611 pnfs_get_layout_hdr(lo); in pnfs_put_lseg()
612 pnfs_layout_remove_lseg(lo, lseg); in pnfs_put_lseg()
613 if (pnfs_cache_lseg_for_layoutreturn(lo, lseg)) in pnfs_put_lseg()
617 pnfs_put_layout_hdr(lo); in pnfs_put_lseg()
707 pnfs_mark_matching_lsegs_invalid(struct pnfs_layout_hdr *lo, in pnfs_mark_matching_lsegs_invalid() argument
713 struct nfs_server *server = NFS_SERVER(lo->plh_inode); in pnfs_mark_matching_lsegs_invalid()
716 dprintk("%s:Begin lo %p\n", __func__, lo); in pnfs_mark_matching_lsegs_invalid()
718 if (list_empty(&lo->plh_segs)) in pnfs_mark_matching_lsegs_invalid()
720 list_for_each_entry_safe(lseg, next, &lo->plh_segs, pls_list) in pnfs_mark_matching_lsegs_invalid()
736 pnfs_free_returned_lsegs(struct pnfs_layout_hdr *lo, in pnfs_free_returned_lsegs() argument
743 list_for_each_entry_safe(lseg, next, &lo->plh_return_segs, pls_list) { in pnfs_free_returned_lsegs()
766 struct pnfs_layout_hdr *lo; in __pnfs_destroy_layout() local
770 lo = nfsi->layout; in __pnfs_destroy_layout()
771 if (lo) { in __pnfs_destroy_layout()
772 pnfs_get_layout_hdr(lo); in __pnfs_destroy_layout()
773 pnfs_mark_layout_stateid_invalid(lo, &tmp_list); in __pnfs_destroy_layout()
774 pnfs_layout_clear_fail_bit(lo, NFS_LAYOUT_RO_FAILED); in __pnfs_destroy_layout()
775 pnfs_layout_clear_fail_bit(lo, NFS_LAYOUT_RW_FAILED); in __pnfs_destroy_layout()
779 pnfs_put_layout_hdr(lo); in __pnfs_destroy_layout()
782 return lo; in __pnfs_destroy_layout()
792 struct pnfs_layout_hdr *lo) in pnfs_layout_removed() argument
797 ret = nfsi->layout != lo; in pnfs_layout_removed()
804 struct pnfs_layout_hdr *lo = __pnfs_destroy_layout(nfsi); in pnfs_destroy_layout_final() local
806 if (lo) in pnfs_destroy_layout_final()
807 wait_var_event(lo, pnfs_layout_removed(nfsi, lo)); in pnfs_destroy_layout_final()
814 struct pnfs_layout_hdr *lo; in pnfs_layout_add_bulk_destroy_list() local
818 lo = NFS_I(inode)->layout; in pnfs_layout_add_bulk_destroy_list()
819 if (lo != NULL && list_empty(&lo->plh_bulk_destroy)) { in pnfs_layout_add_bulk_destroy_list()
820 pnfs_get_layout_hdr(lo); in pnfs_layout_add_bulk_destroy_list()
821 list_add(&lo->plh_bulk_destroy, layout_list); in pnfs_layout_add_bulk_destroy_list()
836 struct pnfs_layout_hdr *lo, *next; in pnfs_layout_bulk_destroy_byserver_locked() local
839 list_for_each_entry_safe(lo, next, &server->layouts, plh_layouts) { in pnfs_layout_bulk_destroy_byserver_locked()
840 if (test_bit(NFS_LAYOUT_INVALID_STID, &lo->plh_flags) || in pnfs_layout_bulk_destroy_byserver_locked()
841 test_bit(NFS_LAYOUT_INODE_FREEING, &lo->plh_flags) || in pnfs_layout_bulk_destroy_byserver_locked()
842 !list_empty(&lo->plh_bulk_destroy)) in pnfs_layout_bulk_destroy_byserver_locked()
847 inode = pnfs_grab_inode_layout_hdr(lo); in pnfs_layout_bulk_destroy_byserver_locked()
849 if (test_and_clear_bit(NFS_LAYOUT_HASHED, &lo->plh_flags)) in pnfs_layout_bulk_destroy_byserver_locked()
850 list_del_rcu(&lo->plh_layouts); in pnfs_layout_bulk_destroy_byserver_locked()
873 struct pnfs_layout_hdr *lo; in pnfs_layout_free_bulk_destroy_list() local
879 lo = list_entry(layout_list->next, struct pnfs_layout_hdr, in pnfs_layout_free_bulk_destroy_list()
882 lo->plh_inode->i_ino); in pnfs_layout_free_bulk_destroy_list()
883 inode = lo->plh_inode; in pnfs_layout_free_bulk_destroy_list()
888 list_del_init(&lo->plh_bulk_destroy); in pnfs_layout_free_bulk_destroy_list()
889 if (pnfs_mark_layout_stateid_invalid(lo, &lseg_list)) { in pnfs_layout_free_bulk_destroy_list()
891 set_bit(NFS_LAYOUT_BULK_RECALL, &lo->plh_flags); in pnfs_layout_free_bulk_destroy_list()
898 pnfs_put_layout_hdr(lo); in pnfs_layout_free_bulk_destroy_list()
969 pnfs_set_layout_cred(struct pnfs_layout_hdr *lo, const struct cred *cred) in pnfs_set_layout_cred() argument
973 if (cred && cred_fscmp(lo->plh_lc_cred, cred) != 0) { in pnfs_set_layout_cred()
974 old = xchg(&lo->plh_lc_cred, get_cred(cred)); in pnfs_set_layout_cred()
981 pnfs_set_layout_stateid(struct pnfs_layout_hdr *lo, const nfs4_stateid *new, in pnfs_set_layout_stateid() argument
984 u32 oldseq = be32_to_cpu(lo->plh_stateid.seqid); in pnfs_set_layout_stateid()
987 if (!pnfs_layout_is_valid(lo)) { in pnfs_set_layout_stateid()
988 pnfs_set_layout_cred(lo, cred); in pnfs_set_layout_stateid()
989 nfs4_stateid_copy(&lo->plh_stateid, new); in pnfs_set_layout_stateid()
990 lo->plh_barrier = newseq; in pnfs_set_layout_stateid()
991 pnfs_clear_layoutreturn_info(lo); in pnfs_set_layout_stateid()
992 clear_bit(NFS_LAYOUT_INVALID_STID, &lo->plh_flags); in pnfs_set_layout_stateid()
997 nfs4_stateid_copy(&lo->plh_stateid, new); in pnfs_set_layout_stateid()
1000 pnfs_barrier_update(lo, newseq); in pnfs_set_layout_stateid()
1008 if (atomic_read(&lo->plh_outstanding) == 1) in pnfs_set_layout_stateid()
1009 pnfs_barrier_update(lo, be32_to_cpu(lo->plh_stateid.seqid)); in pnfs_set_layout_stateid()
1013 pnfs_layout_stateid_blocked(const struct pnfs_layout_hdr *lo, in pnfs_layout_stateid_blocked() argument
1018 return lo->plh_barrier && pnfs_seqid_is_newer(lo->plh_barrier, seqid); in pnfs_layout_stateid_blocked()
1023 pnfs_layoutgets_blocked(const struct pnfs_layout_hdr *lo) in pnfs_layoutgets_blocked() argument
1025 return lo->plh_block_lgets || in pnfs_layoutgets_blocked()
1026 test_bit(NFS_LAYOUT_BULK_RECALL, &lo->plh_flags); in pnfs_layoutgets_blocked()
1146 pnfs_put_layout_hdr(lgp->lo); in pnfs_layoutget_free()
1166 void pnfs_layoutreturn_free_lsegs(struct pnfs_layout_hdr *lo, in pnfs_layoutreturn_free_lsegs() argument
1171 struct inode *inode = lo->plh_inode; in pnfs_layoutreturn_free_lsegs()
1175 if (!pnfs_layout_is_valid(lo) || in pnfs_layoutreturn_free_lsegs()
1176 !nfs4_stateid_match_other(&lo->plh_stateid, arg_stateid)) in pnfs_layoutreturn_free_lsegs()
1181 pnfs_mark_matching_lsegs_invalid(lo, &freeme, range, seq); in pnfs_layoutreturn_free_lsegs()
1182 pnfs_free_returned_lsegs(lo, &freeme, range, seq); in pnfs_layoutreturn_free_lsegs()
1183 pnfs_set_layout_stateid(lo, stateid, NULL, true); in pnfs_layoutreturn_free_lsegs()
1185 pnfs_mark_layout_stateid_invalid(lo, &freeme); in pnfs_layoutreturn_free_lsegs()
1187 pnfs_clear_layoutreturn_waitbit(lo); in pnfs_layoutreturn_free_lsegs()
1194 pnfs_prepare_layoutreturn(struct pnfs_layout_hdr *lo, in pnfs_prepare_layoutreturn() argument
1200 if (atomic_read(&lo->plh_outstanding) != 0) in pnfs_prepare_layoutreturn()
1202 if (test_and_set_bit(NFS_LAYOUT_RETURN_LOCK, &lo->plh_flags)) in pnfs_prepare_layoutreturn()
1204 set_bit(NFS_LAYOUT_RETURN, &lo->plh_flags); in pnfs_prepare_layoutreturn()
1205 pnfs_get_layout_hdr(lo); in pnfs_prepare_layoutreturn()
1206 nfs4_stateid_copy(stateid, &lo->plh_stateid); in pnfs_prepare_layoutreturn()
1207 *cred = get_cred(lo->plh_lc_cred); in pnfs_prepare_layoutreturn()
1208 if (test_bit(NFS_LAYOUT_RETURN_REQUESTED, &lo->plh_flags)) { in pnfs_prepare_layoutreturn()
1209 if (lo->plh_return_seq != 0) in pnfs_prepare_layoutreturn()
1210 stateid->seqid = cpu_to_be32(lo->plh_return_seq); in pnfs_prepare_layoutreturn()
1212 *iomode = lo->plh_return_iomode; in pnfs_prepare_layoutreturn()
1213 pnfs_clear_layoutreturn_info(lo); in pnfs_prepare_layoutreturn()
1216 pnfs_barrier_update(lo, be32_to_cpu(stateid->seqid)); in pnfs_prepare_layoutreturn()
1222 struct pnfs_layout_hdr *lo, in pnfs_init_layoutreturn_args() argument
1226 struct inode *inode = lo->plh_inode; in pnfs_init_layoutreturn_args()
1233 args->layout = lo; in pnfs_init_layoutreturn_args()
1238 pnfs_send_layoutreturn(struct pnfs_layout_hdr *lo, in pnfs_send_layoutreturn() argument
1244 struct inode *ino = lo->plh_inode; in pnfs_send_layoutreturn()
1255 pnfs_clear_layoutreturn_waitbit(lo); in pnfs_send_layoutreturn()
1258 pnfs_put_layout_hdr(lo); in pnfs_send_layoutreturn()
1262 pnfs_init_layoutreturn_args(&lrp->args, lo, stateid, iomode); in pnfs_send_layoutreturn()
1276 pnfs_layout_segments_returnable(struct pnfs_layout_hdr *lo, in pnfs_layout_segments_returnable() argument
1284 return pnfs_mark_matching_lsegs_return(lo, &lo->plh_return_segs, in pnfs_layout_segments_returnable()
1290 pnfs_layout_need_return(struct pnfs_layout_hdr *lo) in pnfs_layout_need_return() argument
1292 if (!test_bit(NFS_LAYOUT_RETURN_REQUESTED, &lo->plh_flags)) in pnfs_layout_need_return()
1294 return pnfs_layout_segments_returnable(lo, lo->plh_return_iomode, in pnfs_layout_need_return()
1295 lo->plh_return_seq); in pnfs_layout_need_return()
1298 static void pnfs_layoutreturn_before_put_layout_hdr(struct pnfs_layout_hdr *lo) in pnfs_layoutreturn_before_put_layout_hdr() argument
1300 struct inode *inode= lo->plh_inode; in pnfs_layoutreturn_before_put_layout_hdr()
1302 if (!test_bit(NFS_LAYOUT_RETURN_REQUESTED, &lo->plh_flags)) in pnfs_layoutreturn_before_put_layout_hdr()
1305 if (pnfs_layout_need_return(lo)) { in pnfs_layoutreturn_before_put_layout_hdr()
1311 send = pnfs_prepare_layoutreturn(lo, &stateid, &cred, &iomode); in pnfs_layoutreturn_before_put_layout_hdr()
1315 pnfs_send_layoutreturn(lo, &stateid, &cred, iomode, false); in pnfs_layoutreturn_before_put_layout_hdr()
1332 struct pnfs_layout_hdr *lo = NULL; in _pnfs_return_layout() local
1348 lo = nfsi->layout; in _pnfs_return_layout()
1349 if (!lo) { in _pnfs_return_layout()
1355 pnfs_get_layout_hdr(lo); in _pnfs_return_layout()
1357 if (test_bit(NFS_LAYOUT_RETURN_LOCK, &lo->plh_flags)) { in _pnfs_return_layout()
1359 if (wait_on_bit(&lo->plh_flags, NFS_LAYOUT_RETURN, in _pnfs_return_layout()
1364 valid_layout = pnfs_layout_is_valid(lo); in _pnfs_return_layout()
1366 pnfs_mark_matching_lsegs_return(lo, &tmp_list, &range, 0); in _pnfs_return_layout()
1369 NFS_SERVER(ino)->pnfs_curr_ld->return_range(lo, &range); in _pnfs_return_layout()
1372 if (!test_bit(NFS_LAYOUT_RETURN_REQUESTED, &lo->plh_flags) || in _pnfs_return_layout()
1379 send = pnfs_prepare_layoutreturn(lo, &stateid, &cred, NULL); in _pnfs_return_layout()
1382 status = pnfs_send_layoutreturn(lo, &stateid, &cred, IOMODE_ANY, true); in _pnfs_return_layout()
1384 wait_on_bit(&lo->plh_flags, NFS_LAYOUT_RETURN, TASK_UNINTERRUPTIBLE); in _pnfs_return_layout()
1387 pnfs_put_layout_hdr(lo); in _pnfs_return_layout()
1396 struct pnfs_layout_hdr *lo; in pnfs_commit_and_return_layout() local
1400 lo = NFS_I(inode)->layout; in pnfs_commit_and_return_layout()
1401 if (lo == NULL) { in pnfs_commit_and_return_layout()
1405 pnfs_get_layout_hdr(lo); in pnfs_commit_and_return_layout()
1407 lo->plh_block_lgets++; in pnfs_commit_and_return_layout()
1414 lo->plh_block_lgets--; in pnfs_commit_and_return_layout()
1416 pnfs_put_layout_hdr(lo); in pnfs_commit_and_return_layout()
1428 struct pnfs_layout_hdr *lo; in pnfs_roc() local
1441 lo = nfsi->layout; in pnfs_roc()
1442 if (!lo || !pnfs_layout_is_valid(lo) || in pnfs_roc()
1443 test_bit(NFS_LAYOUT_BULK_RECALL, &lo->plh_flags)) { in pnfs_roc()
1444 lo = NULL; in pnfs_roc()
1447 pnfs_get_layout_hdr(lo); in pnfs_roc()
1448 if (test_bit(NFS_LAYOUT_RETURN_LOCK, &lo->plh_flags)) { in pnfs_roc()
1451 wait_on_bit(&lo->plh_flags, NFS_LAYOUT_RETURN, in pnfs_roc()
1453 pnfs_put_layout_hdr(lo); in pnfs_roc()
1476 list_for_each_entry_safe(lseg, next, &lo->plh_segs, pls_list) { in pnfs_roc()
1487 if (!mark_lseg_invalid(lseg, &lo->plh_return_segs)) in pnfs_roc()
1489 pnfs_set_plh_return_info(lo, lseg->pls_range.iomode, 0); in pnfs_roc()
1492 if (!test_bit(NFS_LAYOUT_RETURN_REQUESTED, &lo->plh_flags)) in pnfs_roc()
1500 layoutreturn = pnfs_prepare_layoutreturn(lo, &stateid, &lc_cred, &iomode); in pnfs_roc()
1506 pnfs_init_layoutreturn_args(args, lo, &stateid, iomode); in pnfs_roc()
1519 pnfs_put_layout_hdr(lo); in pnfs_roc()
1523 pnfs_send_layoutreturn(lo, &stateid, &lc_cred, iomode, true); in pnfs_roc()
1524 pnfs_put_layout_hdr(lo); in pnfs_roc()
1576 struct pnfs_layout_hdr *lo = args->layout; in pnfs_roc_release() local
1584 if (pnfs_layout_is_valid(lo) && in pnfs_roc_release()
1585 nfs4_stateid_match_other(&args->stateid, &lo->plh_stateid)) in pnfs_roc_release()
1586 pnfs_set_plh_return_info(lo, args->range.iomode, 0); in pnfs_roc_release()
1587 pnfs_clear_layoutreturn_waitbit(lo); in pnfs_roc_release()
1595 pnfs_layoutreturn_free_lsegs(lo, &args->stateid, &args->range, in pnfs_roc_release()
1601 pnfs_put_layout_hdr(lo); in pnfs_roc_release()
1607 struct pnfs_layout_hdr *lo; in pnfs_wait_on_layoutreturn() local
1613 lo = nfsi->layout; in pnfs_wait_on_layoutreturn()
1614 if (lo && test_bit(NFS_LAYOUT_RETURN, &lo->plh_flags)) { in pnfs_wait_on_layoutreturn()
1662 pnfs_generic_layout_insert_lseg(struct pnfs_layout_hdr *lo, in pnfs_generic_layout_insert_lseg() argument
1674 list_for_each_entry_safe(lp, tmp, &lo->plh_segs, pls_list) { in pnfs_generic_layout_insert_lseg()
1693 list_add_tail(&lseg->pls_list, &lo->plh_segs); in pnfs_generic_layout_insert_lseg()
1699 pnfs_get_layout_hdr(lo); in pnfs_generic_layout_insert_lseg()
1706 pnfs_layout_insert_lseg(struct pnfs_layout_hdr *lo, in pnfs_layout_insert_lseg() argument
1710 struct inode *inode = lo->plh_inode; in pnfs_layout_insert_lseg()
1714 ld->add_lseg(lo, lseg, free_me); in pnfs_layout_insert_lseg()
1716 pnfs_generic_layout_insert_lseg(lo, lseg, in pnfs_layout_insert_lseg()
1727 struct pnfs_layout_hdr *lo; in alloc_init_layout_hdr() local
1729 lo = pnfs_alloc_layout_hdr(ino, gfp_flags); in alloc_init_layout_hdr()
1730 if (!lo) in alloc_init_layout_hdr()
1732 refcount_set(&lo->plh_refcount, 1); in alloc_init_layout_hdr()
1733 INIT_LIST_HEAD(&lo->plh_layouts); in alloc_init_layout_hdr()
1734 INIT_LIST_HEAD(&lo->plh_segs); in alloc_init_layout_hdr()
1735 INIT_LIST_HEAD(&lo->plh_return_segs); in alloc_init_layout_hdr()
1736 INIT_LIST_HEAD(&lo->plh_bulk_destroy); in alloc_init_layout_hdr()
1737 lo->plh_inode = ino; in alloc_init_layout_hdr()
1738 lo->plh_lc_cred = get_cred(ctx->cred); in alloc_init_layout_hdr()
1739 lo->plh_flags |= 1 << NFS_LAYOUT_INVALID_STID; in alloc_init_layout_hdr()
1740 return lo; in alloc_init_layout_hdr()
1808 pnfs_find_lseg(struct pnfs_layout_hdr *lo, in pnfs_find_lseg() argument
1816 list_for_each_entry(lseg, &lo->plh_segs, pls_list) { in pnfs_find_lseg()
1905 static int pnfs_prepare_to_retry_layoutget(struct pnfs_layout_hdr *lo) in pnfs_prepare_to_retry_layoutget() argument
1911 pnfs_layoutcommit_inode(lo->plh_inode, false); in pnfs_prepare_to_retry_layoutget()
1912 return wait_on_bit_action(&lo->plh_flags, NFS_LAYOUT_RETURN, in pnfs_prepare_to_retry_layoutget()
1917 static void nfs_layoutget_begin(struct pnfs_layout_hdr *lo) in nfs_layoutget_begin() argument
1919 atomic_inc(&lo->plh_outstanding); in nfs_layoutget_begin()
1922 static void nfs_layoutget_end(struct pnfs_layout_hdr *lo) in nfs_layoutget_end() argument
1924 if (atomic_dec_and_test(&lo->plh_outstanding) && in nfs_layoutget_end()
1925 test_and_clear_bit(NFS_LAYOUT_DRAIN, &lo->plh_flags)) in nfs_layoutget_end()
1926 wake_up_bit(&lo->plh_flags, NFS_LAYOUT_DRAIN); in nfs_layoutget_end()
1929 static bool pnfs_is_first_layoutget(struct pnfs_layout_hdr *lo) in pnfs_is_first_layoutget() argument
1931 return test_bit(NFS_LAYOUT_FIRST_LAYOUTGET, &lo->plh_flags); in pnfs_is_first_layoutget()
1934 static void pnfs_clear_first_layoutget(struct pnfs_layout_hdr *lo) in pnfs_clear_first_layoutget() argument
1936 unsigned long *bitlock = &lo->plh_flags; in pnfs_clear_first_layoutget()
1943 static void _add_to_server_list(struct pnfs_layout_hdr *lo, in _add_to_server_list() argument
1946 if (!test_and_set_bit(NFS_LAYOUT_HASHED, &lo->plh_flags)) { in _add_to_server_list()
1953 list_add_tail_rcu(&lo->plh_layouts, &server->layouts); in _add_to_server_list()
1979 struct pnfs_layout_hdr *lo = NULL; in pnfs_update_layout() local
1988 trace_pnfs_update_layout(ino, pos, count, iomode, lo, lseg, in pnfs_update_layout()
1994 trace_pnfs_update_layout(ino, pos, count, iomode, lo, lseg, in pnfs_update_layout()
2005 lo = pnfs_find_alloc_layout(ino, ctx, gfp_flags); in pnfs_update_layout()
2006 if (lo == NULL) { in pnfs_update_layout()
2009 trace_pnfs_update_layout(ino, pos, count, iomode, lo, lseg, in pnfs_update_layout()
2015 if (test_bit(NFS_LAYOUT_BULK_RECALL, &lo->plh_flags)) { in pnfs_update_layout()
2016 trace_pnfs_update_layout(ino, pos, count, iomode, lo, lseg, in pnfs_update_layout()
2023 if (pnfs_layout_io_test_failed(lo, iomode)) { in pnfs_update_layout()
2024 trace_pnfs_update_layout(ino, pos, count, iomode, lo, lseg, in pnfs_update_layout()
2033 if (test_bit(NFS_LAYOUT_DRAIN, &lo->plh_flags) && in pnfs_update_layout()
2034 atomic_read(&lo->plh_outstanding) != 0) { in pnfs_update_layout()
2036 lseg = ERR_PTR(wait_on_bit(&lo->plh_flags, NFS_LAYOUT_DRAIN, in pnfs_update_layout()
2040 pnfs_put_layout_hdr(lo); in pnfs_update_layout()
2048 if (test_bit(NFS_LAYOUT_RETURN, &lo->plh_flags)) { in pnfs_update_layout()
2051 lseg = ERR_PTR(pnfs_prepare_to_retry_layoutget(lo)); in pnfs_update_layout()
2053 pnfs_put_layout_hdr(lo); in pnfs_update_layout()
2055 trace_pnfs_update_layout(ino, pos, count, iomode, lo, in pnfs_update_layout()
2060 trace_pnfs_update_layout(ino, pos, count, iomode, lo, lseg, in pnfs_update_layout()
2065 lseg = pnfs_find_lseg(lo, &arg, strict_iomode); in pnfs_update_layout()
2067 trace_pnfs_update_layout(ino, pos, count, iomode, lo, lseg, in pnfs_update_layout()
2077 if (test_bit(NFS_LAYOUT_INVALID_STID, &lo->plh_flags)) { in pnfs_update_layout()
2085 &lo->plh_flags)) { in pnfs_update_layout()
2087 lseg = ERR_PTR(wait_on_bit(&lo->plh_flags, in pnfs_update_layout()
2092 pnfs_put_layout_hdr(lo); in pnfs_update_layout()
2105 iomode, lo, lseg, in pnfs_update_layout()
2108 pnfs_clear_first_layoutget(lo); in pnfs_update_layout()
2109 pnfs_put_layout_hdr(lo); in pnfs_update_layout()
2114 nfs4_stateid_copy(&stateid, &lo->plh_stateid); in pnfs_update_layout()
2117 if (pnfs_layoutgets_blocked(lo)) { in pnfs_update_layout()
2118 trace_pnfs_update_layout(ino, pos, count, iomode, lo, lseg, in pnfs_update_layout()
2122 nfs_layoutget_begin(lo); in pnfs_update_layout()
2125 _add_to_server_list(lo, server); in pnfs_update_layout()
2138 trace_pnfs_update_layout(ino, pos, count, iomode, lo, NULL, in pnfs_update_layout()
2140 nfs_layoutget_end(lo); in pnfs_update_layout()
2144 lgp->lo = lo; in pnfs_update_layout()
2145 pnfs_get_layout_hdr(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, nfs_io_gfp_mask()); 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()
2284 lgp->lo = lo; in _lgopen_prepare_attached()
2333 struct pnfs_layout_hdr *lo; in pnfs_parse_lgopen() local
2363 if (!lgp->lo) { in pnfs_parse_lgopen()
2364 lo = _pnfs_grab_empty_layout(ino, ctx); in pnfs_parse_lgopen()
2365 if (!lo) in pnfs_parse_lgopen()
2367 lgp->lo = lo; in pnfs_parse_lgopen()
2369 lo = lgp->lo; in pnfs_parse_lgopen()
2374 pnfs_layout_clear_fail_bit(lo, pnfs_iomode_to_fail_bit(iomode)); in pnfs_parse_lgopen()
2382 if (lgp->lo) { in nfs4_lgopen_release()
2383 pnfs_clear_first_layoutget(lgp->lo); in nfs4_lgopen_release()
2384 nfs_layoutget_end(lgp->lo); in nfs4_lgopen_release()
2393 struct pnfs_layout_hdr *lo = lgp->lo; in pnfs_layout_process() local
2396 struct inode *ino = lo->plh_inode; in pnfs_layout_process()
2403 lseg = NFS_SERVER(ino)->pnfs_curr_ld->alloc_lseg(lo, res, lgp->gfp_flags); in pnfs_layout_process()
2413 pnfs_init_lseg(lo, lseg, &res->range, &res->stateid); in pnfs_layout_process()
2416 if (pnfs_layoutgets_blocked(lo)) { in pnfs_layout_process()
2421 if (test_bit(NFS_LAYOUT_DRAIN, &lo->plh_flags) && in pnfs_layout_process()
2422 !pnfs_is_first_layoutget(lo)) in pnfs_layout_process()
2425 if (nfs4_stateid_match_other(&lo->plh_stateid, &res->stateid)) { in pnfs_layout_process()
2427 if (pnfs_layout_stateid_blocked(lo, &res->stateid)) { in pnfs_layout_process()
2428 if (!pnfs_layout_is_valid(lo)) in pnfs_layout_process()
2429 lo->plh_barrier = 0; in pnfs_layout_process()
2433 pnfs_set_layout_stateid(lo, &res->stateid, lgp->cred, false); in pnfs_layout_process()
2434 } else if (pnfs_layout_is_valid(lo)) { in pnfs_layout_process()
2443 pnfs_mark_matching_lsegs_return(lo, &free_me, &range, 0); 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()
2485 pnfs_mark_matching_lsegs_return(struct pnfs_layout_hdr *lo, in pnfs_mark_matching_lsegs_return() argument
2491 struct nfs_server *server = NFS_SERVER(lo->plh_inode); in pnfs_mark_matching_lsegs_return()
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()
2518 pnfs_set_plh_return_info(lo, return_range->iomode, seq); in pnfs_mark_matching_lsegs_return()
2522 if (!list_empty(&lo->plh_return_segs)) { in pnfs_mark_matching_lsegs_return()
2523 pnfs_set_plh_return_info(lo, return_range->iomode, seq); in pnfs_mark_matching_lsegs_return()
2534 struct pnfs_layout_hdr *lo; in pnfs_mark_layout_for_return() local
2538 lo = NFS_I(inode)->layout; in pnfs_mark_layout_for_return()
2539 if (!pnfs_layout_is_valid(lo)) { in pnfs_mark_layout_for_return()
2543 pnfs_set_plh_return_info(lo, range->iomode, 0); in pnfs_mark_layout_for_return()
2549 if (pnfs_mark_matching_lsegs_return(lo, &lo->plh_return_segs, range, 0) != -EBUSY) { in pnfs_mark_layout_for_return()
2554 return_now = pnfs_prepare_layoutreturn(lo, &stateid, &cred, &iomode); in pnfs_mark_layout_for_return()
2557 pnfs_send_layoutreturn(lo, &stateid, &cred, iomode, false); in pnfs_mark_layout_for_return()
2578 pnfs_layout_can_be_returned(struct pnfs_layout_hdr *lo) in pnfs_layout_can_be_returned() argument
2580 return pnfs_layout_is_valid(lo) && in pnfs_layout_can_be_returned()
2581 !test_bit(NFS_LAYOUT_INODE_FREEING, &lo->plh_flags) && in pnfs_layout_can_be_returned()
2582 !test_bit(NFS_LAYOUT_RETURN, &lo->plh_flags); in pnfs_layout_can_be_returned()
2586 pnfs_find_first_lseg(struct pnfs_layout_hdr *lo, in pnfs_find_first_lseg() argument
2592 list_for_each_entry(lseg, &lo->plh_segs, pls_list) { in pnfs_find_first_lseg()
2607 pnfs_should_return_unused_layout(struct pnfs_layout_hdr *lo, in pnfs_should_return_unused_layout() argument
2614 if (!pnfs_layout_can_be_returned(lo) || in pnfs_should_return_unused_layout()
2615 !pnfs_find_first_lseg(lo, range, range->iomode)) in pnfs_should_return_unused_layout()
2618 head = &NFS_I(lo->plh_inode)->open_files; in pnfs_should_return_unused_layout()
2631 if (pnfs_find_first_lseg(lo, range, IOMODE_READ)) in pnfs_should_return_unused_layout()
2642 struct pnfs_layout_hdr *lo; in pnfs_layout_return_unused_byserver() local
2649 list_for_each_entry_rcu(lo, &server->layouts, plh_layouts) { in pnfs_layout_return_unused_byserver()
2650 inode = lo->plh_inode; in pnfs_layout_return_unused_byserver()
2651 if (!inode || !pnfs_layout_can_be_returned(lo) || in pnfs_layout_return_unused_byserver()
2652 test_bit(NFS_LAYOUT_RETURN_REQUESTED, &lo->plh_flags)) in pnfs_layout_return_unused_byserver()
2655 if (!lo->plh_inode || in pnfs_layout_return_unused_byserver()
2656 !pnfs_should_return_unused_layout(lo, range)) { in pnfs_layout_return_unused_byserver()
2660 pnfs_get_layout_hdr(lo); in pnfs_layout_return_unused_byserver()
2661 pnfs_set_plh_return_info(lo, range->iomode, 0); in pnfs_layout_return_unused_byserver()
2662 if (pnfs_mark_matching_lsegs_return(lo, &lo->plh_return_segs, in pnfs_layout_return_unused_byserver()
2664 !pnfs_prepare_layoutreturn(lo, &stateid, &cred, &iomode)) { in pnfs_layout_return_unused_byserver()
2667 pnfs_put_layout_hdr(lo); in pnfs_layout_return_unused_byserver()
2673 pnfs_send_layoutreturn(lo, &stateid, &cred, iomode, false); in pnfs_layout_return_unused_byserver()
2674 pnfs_put_layout_hdr(lo); in pnfs_layout_return_unused_byserver()