diff options
Diffstat (limited to 'drivers/staging/lustre/lustre/llite/lcommon_misc.c')
| -rw-r--r-- | drivers/staging/lustre/lustre/llite/lcommon_misc.c | 186 |
1 files changed, 0 insertions, 186 deletions
diff --git a/drivers/staging/lustre/lustre/llite/lcommon_misc.c b/drivers/staging/lustre/lustre/llite/lcommon_misc.c deleted file mode 100644 index a246b955306e..000000000000 --- a/drivers/staging/lustre/lustre/llite/lcommon_misc.c +++ /dev/null @@ -1,186 +0,0 @@ -// SPDX-License-Identifier: GPL-2.0 -/* - * GPL HEADER START - * - * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License version 2 only, - * as published by the Free Software Foundation. - * - * This program is distributed in the hope that it will be useful, but - * WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU - * General Public License version 2 for more details (a copy is included - * in the LICENSE file that accompanied this code). - * - * You should have received a copy of the GNU General Public License - * version 2 along with this program; If not, see - * http://www.gnu.org/licenses/gpl-2.0.html - * - * GPL HEADER END - */ -/* - * Copyright (c) 2008, 2010, Oracle and/or its affiliates. All rights reserved. - * Use is subject to license terms. - * - * Copyright (c) 2011, 2012, Intel Corporation. - */ -/* - * This file is part of Lustre, http://www.lustre.org/ - * Lustre is a trademark of Sun Microsystems, Inc. - * - * cl code shared between vvp and liblustre (and other Lustre clients in the - * future). - * - */ -#define DEBUG_SUBSYSTEM S_LLITE -#include <obd_class.h> -#include <obd_support.h> -#include <obd.h> -#include <cl_object.h> - -#include "llite_internal.h" - -/* Initialize the default and maximum LOV EA and cookie sizes. This allows - * us to make MDS RPCs with large enough reply buffers to hold the - * maximum-sized (= maximum striped) EA and cookie without having to - * calculate this (via a call into the LOV + OSCs) each time we make an RPC. - */ -int cl_init_ea_size(struct obd_export *md_exp, struct obd_export *dt_exp) -{ - u32 val_size, max_easize, def_easize; - int rc; - - val_size = sizeof(max_easize); - rc = obd_get_info(NULL, dt_exp, sizeof(KEY_MAX_EASIZE), KEY_MAX_EASIZE, - &val_size, &max_easize); - if (rc) - return rc; - - val_size = sizeof(def_easize); - rc = obd_get_info(NULL, dt_exp, sizeof(KEY_DEFAULT_EASIZE), - KEY_DEFAULT_EASIZE, &val_size, &def_easize); - if (rc) - return rc; - - /* - * default cookiesize is 0 because from 2.4 server doesn't send - * llog cookies to client. - */ - CDEBUG(D_HA, "updating def/max_easize: %d/%d\n", - def_easize, max_easize); - - rc = md_init_ea_size(md_exp, max_easize, def_easize); - return rc; -} - -/** - * This function is used as an upcall-callback hooked by liblustre and llite - * clients into obd_notify() listeners chain to handle notifications about - * change of import connect_flags. See llu_fsswop_mount() and - * lustre_common_fill_super(). - */ -int cl_ocd_update(struct obd_device *host, - struct obd_device *watched, - enum obd_notify_event ev, void *owner, void *data) -{ - struct lustre_client_ocd *lco; - struct client_obd *cli; - __u64 flags; - int result; - - if (!strcmp(watched->obd_type->typ_name, LUSTRE_OSC_NAME) && - watched->obd_set_up && !watched->obd_stopping) { - cli = &watched->u.cli; - lco = owner; - flags = cli->cl_import->imp_connect_data.ocd_connect_flags; - CDEBUG(D_SUPER, "Changing connect_flags: %#llx -> %#llx\n", - lco->lco_flags, flags); - mutex_lock(&lco->lco_lock); - lco->lco_flags &= flags; - /* for each osc event update ea size */ - if (lco->lco_dt_exp) - cl_init_ea_size(lco->lco_md_exp, lco->lco_dt_exp); - - mutex_unlock(&lco->lco_lock); - result = 0; - } else { - CERROR("unexpected notification from %s %s (setup:%d,stopping:%d)!\n", - watched->obd_type->typ_name, - watched->obd_name, watched->obd_set_up, - watched->obd_stopping); - result = -EINVAL; - } - return result; -} - -#define GROUPLOCK_SCOPE "grouplock" - -int cl_get_grouplock(struct cl_object *obj, unsigned long gid, int nonblock, - struct ll_grouplock *cg) -{ - struct lu_env *env; - struct cl_io *io; - struct cl_lock *lock; - struct cl_lock_descr *descr; - __u32 enqflags; - u16 refcheck; - int rc; - - env = cl_env_get(&refcheck); - if (IS_ERR(env)) - return PTR_ERR(env); - - io = vvp_env_thread_io(env); - io->ci_obj = obj; - - rc = cl_io_init(env, io, CIT_MISC, io->ci_obj); - if (rc != 0) { - cl_io_fini(env, io); - cl_env_put(env, &refcheck); - /* Does not make sense to take GL for released layout */ - if (rc > 0) - rc = -ENOTSUPP; - return rc; - } - - lock = vvp_env_lock(env); - descr = &lock->cll_descr; - descr->cld_obj = obj; - descr->cld_start = 0; - descr->cld_end = CL_PAGE_EOF; - descr->cld_gid = gid; - descr->cld_mode = CLM_GROUP; - - enqflags = CEF_MUST | (nonblock ? CEF_NONBLOCK : 0); - descr->cld_enq_flags = enqflags; - - rc = cl_lock_request(env, io, lock); - if (rc < 0) { - cl_io_fini(env, io); - cl_env_put(env, &refcheck); - return rc; - } - - cg->lg_env = env; - cg->lg_io = io; - cg->lg_lock = lock; - cg->lg_gid = gid; - - return 0; -} - -void cl_put_grouplock(struct ll_grouplock *cg) -{ - struct lu_env *env = cg->lg_env; - struct cl_io *io = cg->lg_io; - struct cl_lock *lock = cg->lg_lock; - - LASSERT(cg->lg_env); - LASSERT(cg->lg_gid); - - cl_lock_release(env, lock); - cl_io_fini(env, io); - cl_env_put(env, NULL); -} |