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,
253 pnfs_get_layout_hdr(struct pnfs_layout_hdr *lo) in pnfs_get_layout_hdr() argument
255 refcount_inc(&lo->plh_refcount); in pnfs_get_layout_hdr()
266 pnfs_free_layout_hdr(struct pnfs_layout_hdr *lo) in pnfs_free_layout_hdr() argument
268 struct nfs_server *server = NFS_SERVER(lo->plh_inode); in pnfs_free_layout_hdr()
271 if (test_and_clear_bit(NFS_LAYOUT_HASHED, &lo->plh_flags)) { in pnfs_free_layout_hdr()
275 list_del_rcu(&lo->plh_layouts); in pnfs_free_layout_hdr()
278 put_cred(lo->plh_lc_cred); in pnfs_free_layout_hdr()
279 return ld->free_layout_hdr(lo); in pnfs_free_layout_hdr()
283 pnfs_detach_layout_hdr(struct pnfs_layout_hdr *lo) in pnfs_detach_layout_hdr() argument
285 struct nfs_inode *nfsi = NFS_I(lo->plh_inode); in pnfs_detach_layout_hdr()
286 dprintk("%s: freeing layout cache %p\n", __func__, lo); in pnfs_detach_layout_hdr()
294 pnfs_put_layout_hdr(struct pnfs_layout_hdr *lo) in pnfs_put_layout_hdr() argument
299 if (!lo) in pnfs_put_layout_hdr()
301 inode = lo->plh_inode; in pnfs_put_layout_hdr()
302 pnfs_layoutreturn_before_put_layout_hdr(lo); in pnfs_put_layout_hdr()
304 if (refcount_dec_and_lock(&lo->plh_refcount, &inode->i_lock)) { in pnfs_put_layout_hdr()
305 if (!list_empty(&lo->plh_segs)) in pnfs_put_layout_hdr()
307 pnfs_detach_layout_hdr(lo); in pnfs_put_layout_hdr()
310 pnfs_free_layout_hdr(lo); in pnfs_put_layout_hdr()
313 wake_up_var(lo); in pnfs_put_layout_hdr()
318 pnfs_grab_inode_layout_hdr(struct pnfs_layout_hdr *lo) in pnfs_grab_inode_layout_hdr() argument
320 struct inode *inode = igrab(lo->plh_inode); in pnfs_grab_inode_layout_hdr()
323 set_bit(NFS_LAYOUT_INODE_FREEING, &lo->plh_flags); in pnfs_grab_inode_layout_hdr()
336 static void pnfs_barrier_update(struct pnfs_layout_hdr *lo, u32 newseq) in pnfs_barrier_update() argument
338 if (pnfs_seqid_is_newer(newseq, lo->plh_barrier) || !lo->plh_barrier) in pnfs_barrier_update()
339 lo->plh_barrier = newseq; in pnfs_barrier_update()
343 pnfs_set_plh_return_info(struct pnfs_layout_hdr *lo, enum pnfs_iomode iomode, in pnfs_set_plh_return_info() argument
346 if (lo->plh_return_iomode != 0 && lo->plh_return_iomode != iomode) in pnfs_set_plh_return_info()
348 lo->plh_return_iomode = iomode; in pnfs_set_plh_return_info()
349 set_bit(NFS_LAYOUT_RETURN_REQUESTED, &lo->plh_flags); in pnfs_set_plh_return_info()
351 * We must set lo->plh_return_seq to avoid livelocks with in pnfs_set_plh_return_info()
355 seq = be32_to_cpu(lo->plh_stateid.seqid); in pnfs_set_plh_return_info()
356 if (!lo->plh_return_seq || pnfs_seqid_is_newer(seq, lo->plh_return_seq)) in pnfs_set_plh_return_info()
357 lo->plh_return_seq = seq; in pnfs_set_plh_return_info()
358 pnfs_barrier_update(lo, seq); in pnfs_set_plh_return_info()
362 pnfs_clear_layoutreturn_info(struct pnfs_layout_hdr *lo) in pnfs_clear_layoutreturn_info() argument
365 lo->plh_return_iomode = 0; in pnfs_clear_layoutreturn_info()
366 lo->plh_return_seq = 0; in pnfs_clear_layoutreturn_info()
367 clear_bit(NFS_LAYOUT_RETURN_REQUESTED, &lo->plh_flags); in pnfs_clear_layoutreturn_info()
368 list_for_each_entry(lseg, &lo->plh_segs, pls_list) { in pnfs_clear_layoutreturn_info()
371 pnfs_set_plh_return_info(lo, lseg->pls_range.iomode, 0); in pnfs_clear_layoutreturn_info()
375 static void pnfs_clear_layoutreturn_waitbit(struct pnfs_layout_hdr *lo) in pnfs_clear_layoutreturn_waitbit() argument
377 clear_bit_unlock(NFS_LAYOUT_RETURN, &lo->plh_flags); in pnfs_clear_layoutreturn_waitbit()
378 clear_bit(NFS_LAYOUT_RETURN_LOCK, &lo->plh_flags); in pnfs_clear_layoutreturn_waitbit()
380 wake_up_bit(&lo->plh_flags, NFS_LAYOUT_RETURN); in pnfs_clear_layoutreturn_waitbit()
381 rpc_wake_up(&NFS_SERVER(lo->plh_inode)->roc_rpcwaitq); in pnfs_clear_layoutreturn_waitbit()
404 struct pnfs_layout_hdr *lo; in nfs4_layout_refresh_old_stateid() local
415 lo = NFS_I(inode)->layout; in nfs4_layout_refresh_old_stateid()
416 if (lo && pnfs_layout_is_valid(lo) && in nfs4_layout_refresh_old_stateid()
417 nfs4_stateid_match_other(dst, &lo->plh_stateid)) { in nfs4_layout_refresh_old_stateid()
419 if (!nfs4_stateid_is_newer(&lo->plh_stateid, dst)) { in nfs4_layout_refresh_old_stateid()
425 err = pnfs_mark_matching_lsegs_return(lo, &head, &range, 0); in nfs4_layout_refresh_old_stateid()
427 dst->seqid = lo->plh_stateid.seqid; in nfs4_layout_refresh_old_stateid()
446 pnfs_mark_layout_stateid_invalid(struct pnfs_layout_hdr *lo, in pnfs_mark_layout_stateid_invalid() argument
456 set_bit(NFS_LAYOUT_INVALID_STID, &lo->plh_flags); in pnfs_mark_layout_stateid_invalid()
457 list_for_each_entry_safe(lseg, next, &lo->plh_segs, pls_list) in pnfs_mark_layout_stateid_invalid()
459 pnfs_clear_layoutreturn_info(lo); in pnfs_mark_layout_stateid_invalid()
460 pnfs_free_returned_lsegs(lo, lseg_list, &range, 0); in pnfs_mark_layout_stateid_invalid()
461 if (test_bit(NFS_LAYOUT_RETURN, &lo->plh_flags) && in pnfs_mark_layout_stateid_invalid()
462 !test_and_set_bit(NFS_LAYOUT_RETURN_LOCK, &lo->plh_flags)) in pnfs_mark_layout_stateid_invalid()
463 pnfs_clear_layoutreturn_waitbit(lo); in pnfs_mark_layout_stateid_invalid()
464 return !list_empty(&lo->plh_segs); in pnfs_mark_layout_stateid_invalid()
475 pnfs_layout_set_fail_bit(struct pnfs_layout_hdr *lo, int fail_bit) in pnfs_layout_set_fail_bit() argument
477 lo->plh_retry_timestamp = jiffies; in pnfs_layout_set_fail_bit()
478 if (!test_and_set_bit(fail_bit, &lo->plh_flags)) in pnfs_layout_set_fail_bit()
479 refcount_inc(&lo->plh_refcount); in pnfs_layout_set_fail_bit()
483 pnfs_layout_clear_fail_bit(struct pnfs_layout_hdr *lo, int fail_bit) in pnfs_layout_clear_fail_bit() argument
485 if (test_and_clear_bit(fail_bit, &lo->plh_flags)) in pnfs_layout_clear_fail_bit()
486 refcount_dec(&lo->plh_refcount); in pnfs_layout_clear_fail_bit()
490 pnfs_layout_io_set_failed(struct pnfs_layout_hdr *lo, u32 iomode) in pnfs_layout_io_set_failed() argument
492 struct inode *inode = lo->plh_inode; in pnfs_layout_io_set_failed()
501 pnfs_layout_set_fail_bit(lo, pnfs_iomode_to_fail_bit(iomode)); in pnfs_layout_io_set_failed()
502 pnfs_mark_matching_lsegs_invalid(lo, &head, &range, 0); in pnfs_layout_io_set_failed()
510 pnfs_layout_io_test_failed(struct pnfs_layout_hdr *lo, u32 iomode) in pnfs_layout_io_test_failed() argument
515 if (test_bit(fail_bit, &lo->plh_flags) == 0) in pnfs_layout_io_test_failed()
519 if (!time_in_range(lo->plh_retry_timestamp, start, end)) { in pnfs_layout_io_test_failed()
521 pnfs_layout_clear_fail_bit(lo, fail_bit); in pnfs_layout_io_test_failed()
528 pnfs_init_lseg(struct pnfs_layout_hdr *lo, struct pnfs_layout_segment *lseg, in pnfs_init_lseg() argument
537 lseg->pls_layout = lo; in pnfs_init_lseg()
551 pnfs_layout_remove_lseg(struct pnfs_layout_hdr *lo, in pnfs_layout_remove_lseg() argument
557 refcount_dec(&lo->plh_refcount); in pnfs_layout_remove_lseg()
560 if (list_empty(&lo->plh_segs) && in pnfs_layout_remove_lseg()
561 !test_bit(NFS_LAYOUT_RETURN_REQUESTED, &lo->plh_flags) && in pnfs_layout_remove_lseg()
562 !test_bit(NFS_LAYOUT_RETURN, &lo->plh_flags)) { in pnfs_layout_remove_lseg()
563 if (atomic_read(&lo->plh_outstanding) == 0) in pnfs_layout_remove_lseg()
564 set_bit(NFS_LAYOUT_INVALID_STID, &lo->plh_flags); in pnfs_layout_remove_lseg()
565 clear_bit(NFS_LAYOUT_BULK_RECALL, &lo->plh_flags); in pnfs_layout_remove_lseg()
570 pnfs_cache_lseg_for_layoutreturn(struct pnfs_layout_hdr *lo, in pnfs_cache_lseg_for_layoutreturn() argument
574 pnfs_layout_is_valid(lo)) { in pnfs_cache_lseg_for_layoutreturn()
575 pnfs_set_plh_return_info(lo, lseg->pls_range.iomode, 0); in pnfs_cache_lseg_for_layoutreturn()
576 list_move_tail(&lseg->pls_list, &lo->plh_return_segs); in pnfs_cache_lseg_for_layoutreturn()
585 struct pnfs_layout_hdr *lo; in pnfs_put_lseg() local
595 lo = lseg->pls_layout; in pnfs_put_lseg()
596 inode = lo->plh_inode; in pnfs_put_lseg()
599 pnfs_get_layout_hdr(lo); in pnfs_put_lseg()
600 pnfs_layout_remove_lseg(lo, lseg); in pnfs_put_lseg()
601 if (pnfs_cache_lseg_for_layoutreturn(lo, lseg)) in pnfs_put_lseg()
605 pnfs_put_layout_hdr(lo); in pnfs_put_lseg()
681 * @lo: layout header containing the lsegs
695 pnfs_mark_matching_lsegs_invalid(struct pnfs_layout_hdr *lo, in pnfs_mark_matching_lsegs_invalid() argument
703 dprintk("%s:Begin lo %p\n", __func__, lo); in pnfs_mark_matching_lsegs_invalid()
705 if (list_empty(&lo->plh_segs)) in pnfs_mark_matching_lsegs_invalid()
707 list_for_each_entry_safe(lseg, next, &lo->plh_segs, pls_list) in pnfs_mark_matching_lsegs_invalid()
721 pnfs_free_returned_lsegs(struct pnfs_layout_hdr *lo, in pnfs_free_returned_lsegs() argument
728 list_for_each_entry_safe(lseg, next, &lo->plh_return_segs, pls_list) { in pnfs_free_returned_lsegs()
751 struct pnfs_layout_hdr *lo; in __pnfs_destroy_layout() local
755 lo = nfsi->layout; in __pnfs_destroy_layout()
756 if (lo) { in __pnfs_destroy_layout()
757 pnfs_get_layout_hdr(lo); in __pnfs_destroy_layout()
758 pnfs_mark_layout_stateid_invalid(lo, &tmp_list); in __pnfs_destroy_layout()
759 pnfs_layout_clear_fail_bit(lo, NFS_LAYOUT_RO_FAILED); in __pnfs_destroy_layout()
760 pnfs_layout_clear_fail_bit(lo, NFS_LAYOUT_RW_FAILED); in __pnfs_destroy_layout()
764 pnfs_put_layout_hdr(lo); in __pnfs_destroy_layout()
767 return lo; in __pnfs_destroy_layout()
777 struct pnfs_layout_hdr *lo) in pnfs_layout_removed() argument
782 ret = nfsi->layout != lo; in pnfs_layout_removed()
789 struct pnfs_layout_hdr *lo = __pnfs_destroy_layout(nfsi); in pnfs_destroy_layout_final() local
791 if (lo) in pnfs_destroy_layout_final()
792 wait_var_event(lo, pnfs_layout_removed(nfsi, lo)); in pnfs_destroy_layout_final()
799 struct pnfs_layout_hdr *lo; in pnfs_layout_add_bulk_destroy_list() local
803 lo = NFS_I(inode)->layout; in pnfs_layout_add_bulk_destroy_list()
804 if (lo != NULL && list_empty(&lo->plh_bulk_destroy)) { in pnfs_layout_add_bulk_destroy_list()
805 pnfs_get_layout_hdr(lo); in pnfs_layout_add_bulk_destroy_list()
806 list_add(&lo->plh_bulk_destroy, layout_list); in pnfs_layout_add_bulk_destroy_list()
821 struct pnfs_layout_hdr *lo, *next; in pnfs_layout_bulk_destroy_byserver_locked() local
824 list_for_each_entry_safe(lo, next, &server->layouts, plh_layouts) { in pnfs_layout_bulk_destroy_byserver_locked()
825 if (test_bit(NFS_LAYOUT_INVALID_STID, &lo->plh_flags) || in pnfs_layout_bulk_destroy_byserver_locked()
826 test_bit(NFS_LAYOUT_INODE_FREEING, &lo->plh_flags) || in pnfs_layout_bulk_destroy_byserver_locked()
827 !list_empty(&lo->plh_bulk_destroy)) in pnfs_layout_bulk_destroy_byserver_locked()
832 inode = pnfs_grab_inode_layout_hdr(lo); in pnfs_layout_bulk_destroy_byserver_locked()
834 if (test_and_clear_bit(NFS_LAYOUT_HASHED, &lo->plh_flags)) in pnfs_layout_bulk_destroy_byserver_locked()
835 list_del_rcu(&lo->plh_layouts); in pnfs_layout_bulk_destroy_byserver_locked()
858 struct pnfs_layout_hdr *lo; in pnfs_layout_free_bulk_destroy_list() local
864 lo = list_entry(layout_list->next, struct pnfs_layout_hdr, in pnfs_layout_free_bulk_destroy_list()
867 lo->plh_inode->i_ino); in pnfs_layout_free_bulk_destroy_list()
868 inode = lo->plh_inode; in pnfs_layout_free_bulk_destroy_list()
873 list_del_init(&lo->plh_bulk_destroy); in pnfs_layout_free_bulk_destroy_list()
874 if (pnfs_mark_layout_stateid_invalid(lo, &lseg_list)) { in pnfs_layout_free_bulk_destroy_list()
876 set_bit(NFS_LAYOUT_BULK_RECALL, &lo->plh_flags); in pnfs_layout_free_bulk_destroy_list()
883 pnfs_put_layout_hdr(lo); in pnfs_layout_free_bulk_destroy_list()
954 pnfs_set_layout_cred(struct pnfs_layout_hdr *lo, const struct cred *cred) in pnfs_set_layout_cred() argument
958 if (cred && cred_fscmp(lo->plh_lc_cred, cred) != 0) { in pnfs_set_layout_cred()
959 old = xchg(&lo->plh_lc_cred, get_cred(cred)); in pnfs_set_layout_cred()
964 /* update lo->plh_stateid with new if is more recent */
966 pnfs_set_layout_stateid(struct pnfs_layout_hdr *lo, const nfs4_stateid *new, in pnfs_set_layout_stateid() argument
969 u32 oldseq = be32_to_cpu(lo->plh_stateid.seqid); in pnfs_set_layout_stateid()
972 if (!pnfs_layout_is_valid(lo)) { in pnfs_set_layout_stateid()
973 pnfs_set_layout_cred(lo, cred); in pnfs_set_layout_stateid()
974 nfs4_stateid_copy(&lo->plh_stateid, new); in pnfs_set_layout_stateid()
975 lo->plh_barrier = newseq; in pnfs_set_layout_stateid()
976 pnfs_clear_layoutreturn_info(lo); in pnfs_set_layout_stateid()
977 clear_bit(NFS_LAYOUT_INVALID_STID, &lo->plh_flags); in pnfs_set_layout_stateid()
982 nfs4_stateid_copy(&lo->plh_stateid, new); in pnfs_set_layout_stateid()
985 pnfs_barrier_update(lo, newseq); in pnfs_set_layout_stateid()
993 if (atomic_read(&lo->plh_outstanding) == 1) in pnfs_set_layout_stateid()
994 pnfs_barrier_update(lo, be32_to_cpu(lo->plh_stateid.seqid)); in pnfs_set_layout_stateid()
998 pnfs_layout_stateid_blocked(const struct pnfs_layout_hdr *lo, in pnfs_layout_stateid_blocked() argument
1003 return lo->plh_barrier && pnfs_seqid_is_newer(lo->plh_barrier, seqid); in pnfs_layout_stateid_blocked()
1008 pnfs_layoutgets_blocked(const struct pnfs_layout_hdr *lo) in pnfs_layoutgets_blocked() argument
1010 return lo->plh_block_lgets || in pnfs_layoutgets_blocked()
1011 test_bit(NFS_LAYOUT_BULK_RECALL, &lo->plh_flags); in pnfs_layoutgets_blocked()
1131 pnfs_put_layout_hdr(lgp->lo); in pnfs_layoutget_free()
1151 void pnfs_layoutreturn_free_lsegs(struct pnfs_layout_hdr *lo, in pnfs_layoutreturn_free_lsegs() argument
1156 struct inode *inode = lo->plh_inode; in pnfs_layoutreturn_free_lsegs()
1160 if (!pnfs_layout_is_valid(lo) || in pnfs_layoutreturn_free_lsegs()
1161 !nfs4_stateid_match_other(&lo->plh_stateid, arg_stateid)) in pnfs_layoutreturn_free_lsegs()
1166 pnfs_mark_matching_lsegs_invalid(lo, &freeme, range, seq); in pnfs_layoutreturn_free_lsegs()
1167 pnfs_free_returned_lsegs(lo, &freeme, range, seq); in pnfs_layoutreturn_free_lsegs()
1168 pnfs_set_layout_stateid(lo, stateid, NULL, true); in pnfs_layoutreturn_free_lsegs()
1170 pnfs_mark_layout_stateid_invalid(lo, &freeme); in pnfs_layoutreturn_free_lsegs()
1172 pnfs_clear_layoutreturn_waitbit(lo); in pnfs_layoutreturn_free_lsegs()
1179 pnfs_prepare_layoutreturn(struct pnfs_layout_hdr *lo, in pnfs_prepare_layoutreturn() argument
1185 if (atomic_read(&lo->plh_outstanding) != 0) in pnfs_prepare_layoutreturn()
1187 if (test_and_set_bit(NFS_LAYOUT_RETURN_LOCK, &lo->plh_flags)) in pnfs_prepare_layoutreturn()
1189 set_bit(NFS_LAYOUT_RETURN, &lo->plh_flags); in pnfs_prepare_layoutreturn()
1190 pnfs_get_layout_hdr(lo); in pnfs_prepare_layoutreturn()
1191 nfs4_stateid_copy(stateid, &lo->plh_stateid); in pnfs_prepare_layoutreturn()
1192 *cred = get_cred(lo->plh_lc_cred); in pnfs_prepare_layoutreturn()
1193 if (test_bit(NFS_LAYOUT_RETURN_REQUESTED, &lo->plh_flags)) { in pnfs_prepare_layoutreturn()
1194 if (lo->plh_return_seq != 0) in pnfs_prepare_layoutreturn()
1195 stateid->seqid = cpu_to_be32(lo->plh_return_seq); in pnfs_prepare_layoutreturn()
1197 *iomode = lo->plh_return_iomode; in pnfs_prepare_layoutreturn()
1198 pnfs_clear_layoutreturn_info(lo); in pnfs_prepare_layoutreturn()
1201 pnfs_barrier_update(lo, be32_to_cpu(stateid->seqid)); in pnfs_prepare_layoutreturn()
1207 struct pnfs_layout_hdr *lo, in pnfs_init_layoutreturn_args() argument
1211 struct inode *inode = lo->plh_inode; in pnfs_init_layoutreturn_args()
1218 args->layout = lo; in pnfs_init_layoutreturn_args()
1223 pnfs_send_layoutreturn(struct pnfs_layout_hdr *lo, in pnfs_send_layoutreturn() argument
1229 struct inode *ino = lo->plh_inode; in pnfs_send_layoutreturn()
1240 pnfs_clear_layoutreturn_waitbit(lo); in pnfs_send_layoutreturn()
1243 pnfs_put_layout_hdr(lo); in pnfs_send_layoutreturn()
1247 pnfs_init_layoutreturn_args(&lrp->args, lo, stateid, iomode); in pnfs_send_layoutreturn()
1261 pnfs_layout_segments_returnable(struct pnfs_layout_hdr *lo, in pnfs_layout_segments_returnable() argument
1269 return pnfs_mark_matching_lsegs_return(lo, &lo->plh_return_segs, in pnfs_layout_segments_returnable()
1275 pnfs_layout_need_return(struct pnfs_layout_hdr *lo) in pnfs_layout_need_return() argument
1277 if (!test_bit(NFS_LAYOUT_RETURN_REQUESTED, &lo->plh_flags)) in pnfs_layout_need_return()
1279 return pnfs_layout_segments_returnable(lo, lo->plh_return_iomode, in pnfs_layout_need_return()
1280 lo->plh_return_seq); in pnfs_layout_need_return()
1283 static void pnfs_layoutreturn_before_put_layout_hdr(struct pnfs_layout_hdr *lo) in pnfs_layoutreturn_before_put_layout_hdr() argument
1285 struct inode *inode= lo->plh_inode; in pnfs_layoutreturn_before_put_layout_hdr()
1287 if (!test_bit(NFS_LAYOUT_RETURN_REQUESTED, &lo->plh_flags)) in pnfs_layoutreturn_before_put_layout_hdr()
1290 if (pnfs_layout_need_return(lo)) { in pnfs_layoutreturn_before_put_layout_hdr()
1296 send = pnfs_prepare_layoutreturn(lo, &stateid, &cred, &iomode); in pnfs_layoutreturn_before_put_layout_hdr()
1300 pnfs_send_layoutreturn(lo, &stateid, &cred, iomode, false); in pnfs_layoutreturn_before_put_layout_hdr()
1317 struct pnfs_layout_hdr *lo = NULL; in _pnfs_return_layout() local
1333 lo = nfsi->layout; in _pnfs_return_layout()
1334 if (!lo) { in _pnfs_return_layout()
1340 pnfs_get_layout_hdr(lo); in _pnfs_return_layout()
1342 if (test_bit(NFS_LAYOUT_RETURN_LOCK, &lo->plh_flags)) { in _pnfs_return_layout()
1344 if (wait_on_bit(&lo->plh_flags, NFS_LAYOUT_RETURN, in _pnfs_return_layout()
1349 valid_layout = pnfs_layout_is_valid(lo); in _pnfs_return_layout()
1351 pnfs_mark_matching_lsegs_return(lo, &tmp_list, &range, 0); in _pnfs_return_layout()
1354 NFS_SERVER(ino)->pnfs_curr_ld->return_range(lo, &range); in _pnfs_return_layout()
1357 if (!test_bit(NFS_LAYOUT_RETURN_REQUESTED, &lo->plh_flags) || in _pnfs_return_layout()
1364 send = pnfs_prepare_layoutreturn(lo, &stateid, &cred, NULL); in _pnfs_return_layout()
1367 status = pnfs_send_layoutreturn(lo, &stateid, &cred, IOMODE_ANY, true); in _pnfs_return_layout()
1369 wait_on_bit(&lo->plh_flags, NFS_LAYOUT_RETURN, TASK_UNINTERRUPTIBLE); in _pnfs_return_layout()
1372 pnfs_put_layout_hdr(lo); in _pnfs_return_layout()
1381 struct pnfs_layout_hdr *lo; in pnfs_commit_and_return_layout() local
1385 lo = NFS_I(inode)->layout; in pnfs_commit_and_return_layout()
1386 if (lo == NULL) { in pnfs_commit_and_return_layout()
1390 pnfs_get_layout_hdr(lo); in pnfs_commit_and_return_layout()
1392 lo->plh_block_lgets++; in pnfs_commit_and_return_layout()
1399 lo->plh_block_lgets--; in pnfs_commit_and_return_layout()
1401 pnfs_put_layout_hdr(lo); in pnfs_commit_and_return_layout()
1413 struct pnfs_layout_hdr *lo; in pnfs_roc() local
1426 lo = nfsi->layout; in pnfs_roc()
1427 if (!lo || !pnfs_layout_is_valid(lo) || in pnfs_roc()
1428 test_bit(NFS_LAYOUT_BULK_RECALL, &lo->plh_flags)) { in pnfs_roc()
1429 lo = NULL; in pnfs_roc()
1432 pnfs_get_layout_hdr(lo); in pnfs_roc()
1433 if (test_bit(NFS_LAYOUT_RETURN_LOCK, &lo->plh_flags)) { in pnfs_roc()
1436 wait_on_bit(&lo->plh_flags, NFS_LAYOUT_RETURN, in pnfs_roc()
1438 pnfs_put_layout_hdr(lo); in pnfs_roc()
1461 list_for_each_entry_safe(lseg, next, &lo->plh_segs, pls_list) { in pnfs_roc()
1472 if (!mark_lseg_invalid(lseg, &lo->plh_return_segs)) in pnfs_roc()
1474 pnfs_set_plh_return_info(lo, lseg->pls_range.iomode, 0); in pnfs_roc()
1477 if (!test_bit(NFS_LAYOUT_RETURN_REQUESTED, &lo->plh_flags)) in pnfs_roc()
1484 /* lo ref dropped in pnfs_roc_release() */ in pnfs_roc()
1485 layoutreturn = pnfs_prepare_layoutreturn(lo, &stateid, &lc_cred, &iomode); in pnfs_roc()
1491 pnfs_init_layoutreturn_args(args, lo, &stateid, iomode); in pnfs_roc()
1504 pnfs_put_layout_hdr(lo); in pnfs_roc()
1508 pnfs_send_layoutreturn(lo, &stateid, &lc_cred, iomode, true); in pnfs_roc()
1509 pnfs_put_layout_hdr(lo); in pnfs_roc()
1561 struct pnfs_layout_hdr *lo = args->layout; in pnfs_roc_release() local
1569 if (pnfs_layout_is_valid(lo) && in pnfs_roc_release()
1570 nfs4_stateid_match_other(&args->stateid, &lo->plh_stateid)) in pnfs_roc_release()
1571 pnfs_set_plh_return_info(lo, args->range.iomode, 0); in pnfs_roc_release()
1572 pnfs_clear_layoutreturn_waitbit(lo); in pnfs_roc_release()
1580 pnfs_layoutreturn_free_lsegs(lo, &args->stateid, &args->range, in pnfs_roc_release()
1586 pnfs_put_layout_hdr(lo); in pnfs_roc_release()
1592 struct pnfs_layout_hdr *lo; in pnfs_wait_on_layoutreturn() local
1595 /* we might not have grabbed lo reference. so need to check under in pnfs_wait_on_layoutreturn()
1598 lo = nfsi->layout; in pnfs_wait_on_layoutreturn()
1599 if (lo && test_bit(NFS_LAYOUT_RETURN, &lo->plh_flags)) { in pnfs_wait_on_layoutreturn()
1647 pnfs_generic_layout_insert_lseg(struct pnfs_layout_hdr *lo, in pnfs_generic_layout_insert_lseg() argument
1659 list_for_each_entry_safe(lp, tmp, &lo->plh_segs, pls_list) { in pnfs_generic_layout_insert_lseg()
1678 list_add_tail(&lseg->pls_list, &lo->plh_segs); in pnfs_generic_layout_insert_lseg()
1684 pnfs_get_layout_hdr(lo); in pnfs_generic_layout_insert_lseg()
1691 pnfs_layout_insert_lseg(struct pnfs_layout_hdr *lo, in pnfs_layout_insert_lseg() argument
1695 struct inode *inode = lo->plh_inode; in pnfs_layout_insert_lseg()
1699 ld->add_lseg(lo, lseg, free_me); in pnfs_layout_insert_lseg()
1701 pnfs_generic_layout_insert_lseg(lo, lseg, in pnfs_layout_insert_lseg()
1712 struct pnfs_layout_hdr *lo; in alloc_init_layout_hdr() local
1714 lo = pnfs_alloc_layout_hdr(ino, gfp_flags); in alloc_init_layout_hdr()
1715 if (!lo) in alloc_init_layout_hdr()
1717 refcount_set(&lo->plh_refcount, 1); in alloc_init_layout_hdr()
1718 INIT_LIST_HEAD(&lo->plh_layouts); in alloc_init_layout_hdr()
1719 INIT_LIST_HEAD(&lo->plh_segs); in alloc_init_layout_hdr()
1720 INIT_LIST_HEAD(&lo->plh_return_segs); in alloc_init_layout_hdr()
1721 INIT_LIST_HEAD(&lo->plh_bulk_destroy); in alloc_init_layout_hdr()
1722 lo->plh_inode = ino; in alloc_init_layout_hdr()
1723 lo->plh_lc_cred = get_cred(ctx->cred); in alloc_init_layout_hdr()
1724 lo->plh_flags |= 1 << NFS_LAYOUT_INVALID_STID; in alloc_init_layout_hdr()
1725 return lo; in alloc_init_layout_hdr()
1793 pnfs_find_lseg(struct pnfs_layout_hdr *lo, in pnfs_find_lseg() argument
1801 list_for_each_entry(lseg, &lo->plh_segs, pls_list) { in pnfs_find_lseg()
1890 static int pnfs_prepare_to_retry_layoutget(struct pnfs_layout_hdr *lo) in pnfs_prepare_to_retry_layoutget() argument
1896 pnfs_layoutcommit_inode(lo->plh_inode, false); in pnfs_prepare_to_retry_layoutget()
1897 return wait_on_bit_action(&lo->plh_flags, NFS_LAYOUT_RETURN, in pnfs_prepare_to_retry_layoutget()
1902 static void nfs_layoutget_begin(struct pnfs_layout_hdr *lo) in nfs_layoutget_begin() argument
1904 atomic_inc(&lo->plh_outstanding); in nfs_layoutget_begin()
1907 static void nfs_layoutget_end(struct pnfs_layout_hdr *lo) in nfs_layoutget_end() argument
1909 if (atomic_dec_and_test(&lo->plh_outstanding)) in nfs_layoutget_end()
1910 wake_up_var(&lo->plh_outstanding); in nfs_layoutget_end()
1913 static bool pnfs_is_first_layoutget(struct pnfs_layout_hdr *lo) in pnfs_is_first_layoutget() argument
1915 return test_bit(NFS_LAYOUT_FIRST_LAYOUTGET, &lo->plh_flags); in pnfs_is_first_layoutget()
1918 static void pnfs_clear_first_layoutget(struct pnfs_layout_hdr *lo) in pnfs_clear_first_layoutget() argument
1920 unsigned long *bitlock = &lo->plh_flags; in pnfs_clear_first_layoutget()
1927 static void _add_to_server_list(struct pnfs_layout_hdr *lo, in _add_to_server_list() argument
1930 if (!test_and_set_bit(NFS_LAYOUT_HASHED, &lo->plh_flags)) { in _add_to_server_list()
1933 /* The lo must be on the clp list if there is any in _add_to_server_list()
1937 list_add_tail_rcu(&lo->plh_layouts, &server->layouts); in _add_to_server_list()
1963 struct pnfs_layout_hdr *lo = NULL; in pnfs_update_layout() local
1972 trace_pnfs_update_layout(ino, pos, count, iomode, lo, lseg, in pnfs_update_layout()
1978 trace_pnfs_update_layout(ino, pos, count, iomode, lo, lseg, in pnfs_update_layout()
1989 lo = pnfs_find_alloc_layout(ino, ctx, gfp_flags); in pnfs_update_layout()
1990 if (lo == NULL) { in pnfs_update_layout()
1992 trace_pnfs_update_layout(ino, pos, count, iomode, lo, lseg, in pnfs_update_layout()
1998 if (test_bit(NFS_LAYOUT_BULK_RECALL, &lo->plh_flags)) { in pnfs_update_layout()
1999 trace_pnfs_update_layout(ino, pos, count, iomode, lo, lseg, in pnfs_update_layout()
2006 if (pnfs_layout_io_test_failed(lo, iomode)) { in pnfs_update_layout()
2007 trace_pnfs_update_layout(ino, pos, count, iomode, lo, lseg, in pnfs_update_layout()
2016 if ((list_empty(&lo->plh_segs) || !pnfs_layout_is_valid(lo)) && in pnfs_update_layout()
2017 atomic_read(&lo->plh_outstanding) != 0) { in pnfs_update_layout()
2019 lseg = ERR_PTR(wait_var_event_killable(&lo->plh_outstanding, in pnfs_update_layout()
2020 !atomic_read(&lo->plh_outstanding))); in pnfs_update_layout()
2023 pnfs_put_layout_hdr(lo); in pnfs_update_layout()
2031 if (test_bit(NFS_LAYOUT_RETURN, &lo->plh_flags)) { in pnfs_update_layout()
2034 lseg = ERR_PTR(pnfs_prepare_to_retry_layoutget(lo)); in pnfs_update_layout()
2036 pnfs_put_layout_hdr(lo); in pnfs_update_layout()
2038 trace_pnfs_update_layout(ino, pos, count, iomode, lo, in pnfs_update_layout()
2043 trace_pnfs_update_layout(ino, pos, count, iomode, lo, lseg, in pnfs_update_layout()
2048 lseg = pnfs_find_lseg(lo, &arg, strict_iomode); in pnfs_update_layout()
2050 trace_pnfs_update_layout(ino, pos, count, iomode, lo, lseg, in pnfs_update_layout()
2060 if (test_bit(NFS_LAYOUT_INVALID_STID, &lo->plh_flags)) { in pnfs_update_layout()
2068 &lo->plh_flags)) { in pnfs_update_layout()
2070 lseg = ERR_PTR(wait_on_bit(&lo->plh_flags, in pnfs_update_layout()
2075 pnfs_put_layout_hdr(lo); in pnfs_update_layout()
2088 iomode, lo, lseg, in pnfs_update_layout()
2091 pnfs_clear_first_layoutget(lo); in pnfs_update_layout()
2092 pnfs_put_layout_hdr(lo); in pnfs_update_layout()
2097 nfs4_stateid_copy(&stateid, &lo->plh_stateid); in pnfs_update_layout()
2100 if (pnfs_layoutgets_blocked(lo)) { in pnfs_update_layout()
2101 trace_pnfs_update_layout(ino, pos, count, iomode, lo, lseg, in pnfs_update_layout()
2105 nfs_layoutget_begin(lo); in pnfs_update_layout()
2108 _add_to_server_list(lo, server); in pnfs_update_layout()
2120 trace_pnfs_update_layout(ino, pos, count, iomode, lo, NULL, in pnfs_update_layout()
2122 nfs_layoutget_end(lo); in pnfs_update_layout()
2126 lgp->lo = lo; in pnfs_update_layout()
2127 pnfs_get_layout_hdr(lo); in pnfs_update_layout()
2130 trace_pnfs_update_layout(ino, pos, count, iomode, lo, lseg, in pnfs_update_layout()
2132 nfs_layoutget_end(lo); in pnfs_update_layout()
2144 pnfs_layout_clear_fail_bit(lo, pnfs_iomode_to_fail_bit(iomode)); in pnfs_update_layout()
2151 pnfs_clear_first_layoutget(lo); in pnfs_update_layout()
2153 iomode, lo, lseg, PNFS_UPDATE_LAYOUT_RETRY); in pnfs_update_layout()
2154 pnfs_put_layout_hdr(lo); in pnfs_update_layout()
2158 pnfs_layout_clear_fail_bit(lo, pnfs_iomode_to_fail_bit(iomode)); in pnfs_update_layout()
2163 pnfs_clear_first_layoutget(lo); in pnfs_update_layout()
2164 trace_pnfs_update_layout(ino, pos, count, iomode, lo, lseg, in pnfs_update_layout()
2166 pnfs_put_layout_hdr(lo); in pnfs_update_layout()
2206 struct pnfs_layout_hdr *lo; in _pnfs_grab_empty_layout() local
2209 lo = pnfs_find_alloc_layout(ino, ctx, GFP_KERNEL); in _pnfs_grab_empty_layout()
2210 if (!lo) in _pnfs_grab_empty_layout()
2212 if (!test_bit(NFS_LAYOUT_INVALID_STID, &lo->plh_flags)) in _pnfs_grab_empty_layout()
2214 if (test_bit(NFS_LAYOUT_RETURN, &lo->plh_flags)) in _pnfs_grab_empty_layout()
2216 if (pnfs_layoutgets_blocked(lo)) in _pnfs_grab_empty_layout()
2218 if (test_and_set_bit(NFS_LAYOUT_FIRST_LAYOUTGET, &lo->plh_flags)) in _pnfs_grab_empty_layout()
2220 nfs_layoutget_begin(lo); in _pnfs_grab_empty_layout()
2222 _add_to_server_list(lo, NFS_SERVER(ino)); in _pnfs_grab_empty_layout()
2223 return lo; in _pnfs_grab_empty_layout()
2227 pnfs_put_layout_hdr(lo); in _pnfs_grab_empty_layout()
2242 struct pnfs_layout_hdr *lo; in _lgopen_prepare_attached() local
2249 lo = _pnfs_grab_empty_layout(ino, ctx); in _lgopen_prepare_attached()
2250 if (!lo) in _lgopen_prepare_attached()
2255 pnfs_clear_first_layoutget(lo); in _lgopen_prepare_attached()
2256 nfs_layoutget_end(lo); in _lgopen_prepare_attached()
2257 pnfs_put_layout_hdr(lo); in _lgopen_prepare_attached()
2260 lgp->lo = lo; in _lgopen_prepare_attached()
2309 struct pnfs_layout_hdr *lo; in pnfs_parse_lgopen() local
2339 if (!lgp->lo) { in pnfs_parse_lgopen()
2340 lo = _pnfs_grab_empty_layout(ino, ctx); in pnfs_parse_lgopen()
2341 if (!lo) in pnfs_parse_lgopen()
2343 lgp->lo = lo; in pnfs_parse_lgopen()
2345 lo = lgp->lo; in pnfs_parse_lgopen()
2350 pnfs_layout_clear_fail_bit(lo, pnfs_iomode_to_fail_bit(iomode)); in pnfs_parse_lgopen()
2358 if (lgp->lo) { in nfs4_lgopen_release()
2359 pnfs_clear_first_layoutget(lgp->lo); in nfs4_lgopen_release()
2360 nfs_layoutget_end(lgp->lo); in nfs4_lgopen_release()
2369 struct pnfs_layout_hdr *lo = lgp->lo; in pnfs_layout_process() local
2372 struct inode *ino = lo->plh_inode; in pnfs_layout_process()
2379 lseg = NFS_SERVER(ino)->pnfs_curr_ld->alloc_lseg(lo, res, lgp->gfp_flags); in pnfs_layout_process()
2389 pnfs_init_lseg(lo, lseg, &res->range, &res->stateid); in pnfs_layout_process()
2392 if (pnfs_layoutgets_blocked(lo)) { in pnfs_layout_process()
2397 if (!pnfs_layout_is_valid(lo) && !pnfs_is_first_layoutget(lo)) in pnfs_layout_process()
2400 if (nfs4_stateid_match_other(&lo->plh_stateid, &res->stateid)) { in pnfs_layout_process()
2402 if (pnfs_layout_stateid_blocked(lo, &res->stateid)) { in pnfs_layout_process()
2403 if (!pnfs_layout_is_valid(lo)) in pnfs_layout_process()
2404 lo->plh_barrier = 0; in pnfs_layout_process()
2408 pnfs_set_layout_stateid(lo, &res->stateid, lgp->cred, false); in pnfs_layout_process()
2409 } else if (pnfs_layout_is_valid(lo)) { in pnfs_layout_process()
2418 pnfs_mark_matching_lsegs_return(lo, &free_me, &range, 0); in pnfs_layout_process()
2422 pnfs_set_layout_stateid(lo, &res->stateid, lgp->cred, true); in pnfs_layout_process()
2426 pnfs_layout_insert_lseg(lo, lseg, &free_me); in pnfs_layout_process()
2438 lseg->pls_layout = lo; in pnfs_layout_process()
2445 * @lo: pointer to layout header
2460 pnfs_mark_matching_lsegs_return(struct pnfs_layout_hdr *lo, in pnfs_mark_matching_lsegs_return() argument
2468 dprintk("%s:Begin lo %p\n", __func__, lo); in pnfs_mark_matching_lsegs_return()
2470 assert_spin_locked(&lo->plh_inode->i_lock); in pnfs_mark_matching_lsegs_return()
2472 if (test_bit(NFS_LAYOUT_RETURN_REQUESTED, &lo->plh_flags)) in pnfs_mark_matching_lsegs_return()
2473 tmp_list = &lo->plh_return_segs; in pnfs_mark_matching_lsegs_return()
2475 list_for_each_entry_safe(lseg, next, &lo->plh_segs, pls_list) in pnfs_mark_matching_lsegs_return()
2483 tmp_list = &lo->plh_return_segs; in pnfs_mark_matching_lsegs_return()
2491 pnfs_set_plh_return_info(lo, return_range->iomode, seq); in pnfs_mark_matching_lsegs_return()
2495 if (!list_empty(&lo->plh_return_segs)) { in pnfs_mark_matching_lsegs_return()
2496 pnfs_set_plh_return_info(lo, return_range->iomode, seq); in pnfs_mark_matching_lsegs_return()
2507 struct pnfs_layout_hdr *lo; in pnfs_mark_layout_for_return() local
2511 lo = NFS_I(inode)->layout; in pnfs_mark_layout_for_return()
2512 if (!pnfs_layout_is_valid(lo)) { in pnfs_mark_layout_for_return()
2516 pnfs_set_plh_return_info(lo, range->iomode, 0); in pnfs_mark_layout_for_return()
2522 if (pnfs_mark_matching_lsegs_return(lo, &lo->plh_return_segs, range, 0) != -EBUSY) { in pnfs_mark_layout_for_return()
2527 return_now = pnfs_prepare_layoutreturn(lo, &stateid, &cred, &iomode); in pnfs_mark_layout_for_return()
2530 pnfs_send_layoutreturn(lo, &stateid, &cred, iomode, false); in pnfs_mark_layout_for_return()
2551 pnfs_layout_can_be_returned(struct pnfs_layout_hdr *lo) in pnfs_layout_can_be_returned() argument
2553 return pnfs_layout_is_valid(lo) && in pnfs_layout_can_be_returned()
2554 !test_bit(NFS_LAYOUT_INODE_FREEING, &lo->plh_flags) && in pnfs_layout_can_be_returned()
2555 !test_bit(NFS_LAYOUT_RETURN, &lo->plh_flags); in pnfs_layout_can_be_returned()
2559 pnfs_find_first_lseg(struct pnfs_layout_hdr *lo, in pnfs_find_first_lseg() argument
2565 list_for_each_entry(lseg, &lo->plh_segs, pls_list) { in pnfs_find_first_lseg()
2580 pnfs_should_return_unused_layout(struct pnfs_layout_hdr *lo, in pnfs_should_return_unused_layout() argument
2587 if (!pnfs_layout_can_be_returned(lo) || in pnfs_should_return_unused_layout()
2588 !pnfs_find_first_lseg(lo, range, range->iomode)) in pnfs_should_return_unused_layout()
2591 head = &NFS_I(lo->plh_inode)->open_files; in pnfs_should_return_unused_layout()
2604 if (pnfs_find_first_lseg(lo, range, IOMODE_READ)) in pnfs_should_return_unused_layout()
2614 struct pnfs_layout_hdr *lo; in pnfs_layout_return_unused_byserver() local
2618 list_for_each_entry_rcu(lo, &server->layouts, plh_layouts) { in pnfs_layout_return_unused_byserver()
2619 if (!pnfs_layout_can_be_returned(lo) || in pnfs_layout_return_unused_byserver()
2620 test_bit(NFS_LAYOUT_RETURN_REQUESTED, &lo->plh_flags)) in pnfs_layout_return_unused_byserver()
2622 inode = lo->plh_inode; in pnfs_layout_return_unused_byserver()
2624 if (!pnfs_should_return_unused_layout(lo, range)) { in pnfs_layout_return_unused_byserver()
2629 inode = pnfs_grab_inode_layout_hdr(lo); in pnfs_layout_return_unused_byserver()