diff options
Diffstat (limited to 'drivers/staging/lustre/lustre/lov/lovsub_dev.c')
| -rw-r--r-- | drivers/staging/lustre/lustre/lov/lovsub_dev.c | 147 |
1 files changed, 0 insertions, 147 deletions
diff --git a/drivers/staging/lustre/lustre/lov/lovsub_dev.c b/drivers/staging/lustre/lustre/lov/lovsub_dev.c deleted file mode 100644 index 7e89a2e485fc..000000000000 --- a/drivers/staging/lustre/lustre/lov/lovsub_dev.c +++ /dev/null @@ -1,147 +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) 2013, 2015, Intel Corporation. - */ -/* - * This file is part of Lustre, http://www.lustre.org/ - * Lustre is a trademark of Sun Microsystems, Inc. - * - * Implementation of cl_device and cl_device_type for LOVSUB layer. - * - * Author: Nikita Danilov <nikita.danilov@sun.com> - */ - -#define DEBUG_SUBSYSTEM S_LOV - -#include "lov_cl_internal.h" - -/** \addtogroup lov - * @{ - */ - -/***************************************************************************** - * - * Lov-sub device and device type functions. - * - */ - -static int lovsub_device_init(const struct lu_env *env, struct lu_device *d, - const char *name, struct lu_device *next) -{ - struct lovsub_device *lsd = lu2lovsub_dev(d); - struct lu_device_type *ldt; - int rc; - - next->ld_site = d->ld_site; - ldt = next->ld_type; - rc = ldt->ldt_ops->ldto_device_init(env, next, ldt->ldt_name, NULL); - if (rc) { - next->ld_site = NULL; - return rc; - } - - lu_device_get(next); - lu_ref_add(&next->ld_reference, "lu-stack", &lu_site_init); - lsd->acid_next = lu2cl_dev(next); - return rc; -} - -static struct lu_device *lovsub_device_fini(const struct lu_env *env, - struct lu_device *d) -{ - struct lu_device *next; - struct lovsub_device *lsd; - - lsd = lu2lovsub_dev(d); - next = cl2lu_dev(lsd->acid_next); - lsd->acid_next = NULL; - return next; -} - -static struct lu_device *lovsub_device_free(const struct lu_env *env, - struct lu_device *d) -{ - struct lovsub_device *lsd = lu2lovsub_dev(d); - struct lu_device *next = cl2lu_dev(lsd->acid_next); - - if (atomic_read(&d->ld_ref) && d->ld_site) { - LIBCFS_DEBUG_MSG_DATA_DECL(msgdata, D_ERROR, NULL); - lu_site_print(env, d->ld_site, &msgdata, lu_cdebug_printer); - } - cl_device_fini(lu2cl_dev(d)); - kfree(lsd); - return next; -} - -static const struct lu_device_operations lovsub_lu_ops = { - .ldo_object_alloc = lovsub_object_alloc, - .ldo_process_config = NULL, - .ldo_recovery_complete = NULL -}; - -static struct lu_device *lovsub_device_alloc(const struct lu_env *env, - struct lu_device_type *t, - struct lustre_cfg *cfg) -{ - struct lu_device *d; - struct lovsub_device *lsd; - - lsd = kzalloc(sizeof(*lsd), GFP_NOFS); - if (lsd) { - int result; - - result = cl_device_init(&lsd->acid_cl, t); - if (result == 0) { - d = lovsub2lu_dev(lsd); - d->ld_ops = &lovsub_lu_ops; - } else { - d = ERR_PTR(result); - } - } else { - d = ERR_PTR(-ENOMEM); - } - return d; -} - -static const struct lu_device_type_operations lovsub_device_type_ops = { - .ldto_device_alloc = lovsub_device_alloc, - .ldto_device_free = lovsub_device_free, - - .ldto_device_init = lovsub_device_init, - .ldto_device_fini = lovsub_device_fini -}; - -#define LUSTRE_LOVSUB_NAME "lovsub" - -struct lu_device_type lovsub_device_type = { - .ldt_tags = LU_DEVICE_CL, - .ldt_name = LUSTRE_LOVSUB_NAME, - .ldt_ops = &lovsub_device_type_ops, - .ldt_ctx_tags = LCT_CL_THREAD -}; - -/** @} lov */ |