1 /* -*- mode: c; c-basic-offset: 8; indent-tabs-mode: nil; -*-
2 * vim:expandtab:shiftwidth=8:tabstop=8:
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29 * Copyright (c) 2008, 2010, Oracle and/or its affiliates. All rights reserved.
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33 * This file is part of Lustre, http://www.lustre.org/
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36 * Implementation of cl_object for OSC layer.
38 * Author: Nikita Danilov <nikita.danilov@sun.com>
41 #define DEBUG_SUBSYSTEM S_OSC
43 #include "osc_cl_internal.h"
49 /*****************************************************************************
55 static struct lu_object *osc2lu(struct osc_object *osc)
57 return &osc->oo_cl.co_lu;
60 static struct osc_object *lu2osc(const struct lu_object *obj)
62 LINVRNT(osc_is_object(obj));
63 return container_of0(obj, struct osc_object, oo_cl.co_lu);
66 /*****************************************************************************
72 static int osc_object_init(const struct lu_env *env, struct lu_object *obj,
73 const struct lu_object_conf *conf)
75 struct osc_object *osc = lu2osc(obj);
76 const struct cl_object_conf *cconf = lu2cl_conf(conf);
79 osc->oo_oinfo = cconf->u.coc_oinfo;
80 #ifdef INVARIANT_CHECK
81 cfs_mutex_init(&osc->oo_debug_mutex);
83 cfs_spin_lock_init(&osc->oo_seatbelt);
84 for (i = 0; i < CRT_NR; ++i)
85 CFS_INIT_LIST_HEAD(&osc->oo_inflight[i]);
89 static void osc_object_free(const struct lu_env *env, struct lu_object *obj)
91 struct osc_object *osc = lu2osc(obj);
94 for (i = 0; i < CRT_NR; ++i)
95 LASSERT(cfs_list_empty(&osc->oo_inflight[i]));
98 OBD_SLAB_FREE_PTR(osc, osc_object_kmem);
101 int osc_lvb_print(const struct lu_env *env, void *cookie,
102 lu_printer_t p, const struct ost_lvb *lvb)
104 return (*p)(env, cookie, "size: "LPU64" mtime: "LPU64" atime: "LPU64" "
105 "ctime: "LPU64" blocks: "LPU64,
106 lvb->lvb_size, lvb->lvb_mtime, lvb->lvb_atime,
107 lvb->lvb_ctime, lvb->lvb_blocks);
110 static int osc_object_print(const struct lu_env *env, void *cookie,
111 lu_printer_t p, const struct lu_object *obj)
113 struct osc_object *osc = lu2osc(obj);
114 struct lov_oinfo *oinfo = osc->oo_oinfo;
115 struct osc_async_rc *ar = &oinfo->loi_ar;
117 (*p)(env, cookie, "id: "LPU64" gr: "LPU64" "
118 "idx: %d gen: %d kms_valid: %u kms "LPU64" "
119 "rc: %d force_sync: %d min_xid: "LPU64" ",
120 oinfo->loi_id, oinfo->loi_seq, oinfo->loi_ost_idx,
121 oinfo->loi_ost_gen, oinfo->loi_kms_valid, oinfo->loi_kms,
122 ar->ar_rc, ar->ar_force_sync, ar->ar_min_xid);
123 osc_lvb_print(env, cookie, p, &oinfo->loi_lvb);
128 static int osc_attr_get(const struct lu_env *env, struct cl_object *obj,
129 struct cl_attr *attr)
131 struct lov_oinfo *oinfo = cl2osc(obj)->oo_oinfo;
133 cl_lvb2attr(attr, &oinfo->loi_lvb);
134 attr->cat_kms = oinfo->loi_kms_valid ? oinfo->loi_kms : 0;
138 int osc_attr_set(const struct lu_env *env, struct cl_object *obj,
139 const struct cl_attr *attr, unsigned valid)
141 struct lov_oinfo *oinfo = cl2osc(obj)->oo_oinfo;
142 struct ost_lvb *lvb = &oinfo->loi_lvb;
144 if (valid & CAT_SIZE)
145 lvb->lvb_size = attr->cat_size;
146 if (valid & CAT_MTIME)
147 lvb->lvb_mtime = attr->cat_mtime;
148 if (valid & CAT_ATIME)
149 lvb->lvb_atime = attr->cat_atime;
150 if (valid & CAT_CTIME)
151 lvb->lvb_ctime = attr->cat_ctime;
152 if (valid & CAT_BLOCKS)
153 lvb->lvb_blocks = attr->cat_blocks;
155 loi_kms_set(oinfo, attr->cat_kms);
159 static int osc_object_glimpse(const struct lu_env *env,
160 const struct cl_object *obj, struct ost_lvb *lvb)
162 struct lov_oinfo *oinfo = cl2osc(obj)->oo_oinfo;
165 lvb->lvb_size = oinfo->loi_kms;
166 lvb->lvb_blocks = oinfo->loi_lvb.lvb_blocks;
171 void osc_object_set_contended(struct osc_object *obj)
173 obj->oo_contention_time = cfs_time_current();
175 obj->oo_contended = 1;
178 void osc_object_clear_contended(struct osc_object *obj)
180 obj->oo_contended = 0;
183 int osc_object_is_contended(struct osc_object *obj)
185 struct osc_device *dev = lu2osc_dev(obj->oo_cl.co_lu.lo_dev);
186 int osc_contention_time = dev->od_contention_time;
187 cfs_time_t cur_time = cfs_time_current();
188 cfs_time_t retry_time;
190 if (OBD_FAIL_CHECK(OBD_FAIL_OSC_OBJECT_CONTENTION))
193 if (!obj->oo_contended)
197 * I like copy-paste. the code is copied from
198 * ll_file_is_contended.
200 retry_time = cfs_time_add(obj->oo_contention_time,
201 cfs_time_seconds(osc_contention_time));
202 if (cfs_time_after(cur_time, retry_time)) {
203 osc_object_clear_contended(obj);
209 static const struct cl_object_operations osc_ops = {
210 .coo_page_init = osc_page_init,
211 .coo_lock_init = osc_lock_init,
212 .coo_io_init = osc_io_init,
213 .coo_attr_get = osc_attr_get,
214 .coo_attr_set = osc_attr_set,
215 .coo_glimpse = osc_object_glimpse
218 static const struct lu_object_operations osc_lu_obj_ops = {
219 .loo_object_init = osc_object_init,
220 .loo_object_delete = NULL,
221 .loo_object_release = NULL,
222 .loo_object_free = osc_object_free,
223 .loo_object_print = osc_object_print,
224 .loo_object_invariant = NULL
227 struct lu_object *osc_object_alloc(const struct lu_env *env,
228 const struct lu_object_header *unused,
229 struct lu_device *dev)
231 struct osc_object *osc;
232 struct lu_object *obj;
234 OBD_SLAB_ALLOC_PTR_GFP(osc, osc_object_kmem, CFS_ALLOC_IO);
237 lu_object_init(obj, NULL, dev);
238 osc->oo_cl.co_ops = &osc_ops;
239 obj->lo_ops = &osc_lu_obj_ops;