1 /* -*- mode: c; c-basic-offset: 8; indent-tabs-mode: nil; -*-
2 * vim:expandtab:shiftwidth=8:tabstop=8:
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15 * General Public License version 2 for more details (a copy is included
16 * in the LICENSE file that accompanied this code).
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29 * Copyright 2008 Sun Microsystems, Inc. All rights reserved.
30 * Use is subject to license terms.
33 * This file is part of Lustre, http://www.lustre.org/
34 * Lustre is a trademark of Sun Microsystems, Inc.
36 * Implementation of cl_object for LOVSUB layer.
38 * Author: Nikita Danilov <nikita.danilov@sun.com>
41 #define DEBUG_SUBSYSTEM S_LOV
43 #include "lov_cl_internal.h"
45 /** \addtogroup lov lov @{ */
47 /*****************************************************************************
49 * Lovsub object operations.
53 int lovsub_object_init(const struct lu_env *env, struct lu_object *obj,
54 const struct lu_object_conf *conf)
56 struct lovsub_device *dev = lu2lovsub_dev(obj->lo_dev);
57 struct lu_object *below;
58 struct lu_device *under;
63 under = &dev->acid_next->cd_lu_dev;
64 below = under->ld_ops->ldo_object_alloc(env, obj->lo_header, under);
66 lu_object_add(obj, below);
74 static void lovsub_object_free(const struct lu_env *env, struct lu_object *obj)
76 struct lovsub_object *los = lu2lovsub(obj);
80 lu_object_header_fini(&los->lso_header.coh_lu);
81 OBD_SLAB_FREE_PTR(los, lovsub_object_kmem);
85 static int lovsub_object_print(const struct lu_env *env, void *cookie,
86 lu_printer_t p, const struct lu_object *obj)
88 struct lovsub_object *los = lu2lovsub(obj);
90 return (*p)(env, cookie, "[%i]", los->lso_index);
93 static int lovsub_attr_set(const struct lu_env *env, struct cl_object *obj,
94 const struct cl_attr *attr, unsigned valid)
96 struct lov_object *lov = cl2lovsub(obj)->lso_super;
99 lov_r0(lov)->lo_attr_valid = 0;
103 static int lovsub_object_glimpse(const struct lu_env *env,
104 const struct cl_object *obj,
107 struct lovsub_object *los = cl2lovsub(obj);
110 RETURN(cl_object_glimpse(env, &los->lso_super->lo_cl, lvb));
115 static const struct cl_object_operations lovsub_ops = {
116 .coo_page_init = lovsub_page_init,
117 .coo_lock_init = lovsub_lock_init,
118 .coo_attr_set = lovsub_attr_set,
119 .coo_glimpse = lovsub_object_glimpse
122 static const struct lu_object_operations lovsub_lu_obj_ops = {
123 .loo_object_init = lovsub_object_init,
124 .loo_object_delete = NULL,
125 .loo_object_release = NULL,
126 .loo_object_free = lovsub_object_free,
127 .loo_object_print = lovsub_object_print,
128 .loo_object_invariant = NULL
131 struct lu_object *lovsub_object_alloc(const struct lu_env *env,
132 const struct lu_object_header *_,
133 struct lu_device *dev)
135 struct lovsub_object *los;
136 struct lu_object *obj;
139 OBD_SLAB_ALLOC_PTR(los, lovsub_object_kmem);
141 struct cl_object_header *hdr;
143 obj = lovsub2lu(los);
144 hdr = &los->lso_header;
145 cl_object_header_init(hdr);
146 lu_object_init(obj, &hdr->coh_lu, dev);
147 lu_object_add_top(&hdr->coh_lu, obj);
148 los->lso_cl.co_ops = &lovsub_ops;
149 obj->lo_ops = &lovsub_lu_obj_ops;