4 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
6 * This program is free software; you can redistribute it and/or modify
7 * it under the terms of the GNU General Public License version 2 only,
8 * as published by the Free Software Foundation.
10 * This program is distributed in the hope that it will be useful, but
11 * WITHOUT ANY WARRANTY; without even the implied warranty of
12 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
13 * General Public License version 2 for more details (a copy is included
14 * in the LICENSE file that accompanied this code).
16 * You should have received a copy of the GNU General Public License
17 * version 2 along with this program; If not, see
18 * http://www.sun.com/software/products/lustre/docs/GPLv2.pdf
20 * Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa Clara,
21 * CA 95054 USA or visit www.sun.com if you need additional information or
27 * Copyright (c) 2009, 2010, Oracle and/or its affiliates. All rights reserved.
28 * Use is subject to license terms.
31 * Copyright (c) 2011, 2012 Whamcloud, Inc.
32 * Use is subject to license terms.
35 * This file is part of Lustre, http://www.lustre.org/
36 * Lustre is a trademark of Sun Microsystems, Inc.
38 * lustre/osd-zfs/osd_internal.h
39 * Shared definitions and declarations for zfs/dmu osd
41 * Author: Alex Zhuravlev <bzzz@whamcloud.com>
42 * Author: Mike Pershin <tappro@whamcloud.com>
43 * Author: Johann Lombardi <johann@whamcloud.com>
46 #ifndef _OSD_INTERNAL_H
47 #define _OSD_INTERNAL_H
49 #include <dt_object.h>
53 #include <sys/nvpair.h>
57 #define LUSTRE_ROOT_FID_SEQ 0
58 #define DMU_OSD_SVNAME "svname"
59 #define DMU_OSD_OI_NAME_BASE "oi"
61 #define OSD_GFP_IO (GFP_NOFS | __GFP_HIGHMEM)
64 * Iterator's in-memory data structure for quota file.
67 struct osd_object *oiq_obj;
68 /* DMU accounting object id */
72 /** identifier for current quota record */
74 unsigned oiq_reset:1; /* 1 -- no need to advance */
78 * Iterator's in-memory data structure for ZAPs
82 struct osd_object *ozi_obj;
83 struct lustre_capa *ozi_capa;
84 unsigned ozi_reset:1; /* 1 -- no need to advance */
86 char ozi_name[NAME_MAX + 1]; /* file name for dir */
87 __u64 ozi_key; /* binary key for index files */
90 #define DT_IT2DT(it) (&((struct osd_zap_it *)it)->ozi_obj->oo_dt)
93 * regular ZFS direntry
96 uint64_t zde_dnode:48,
99 } __attribute__((packed));
102 * lustre direntry adds a fid to regular ZFS direntry
104 struct luz_direntry {
105 struct zpl_direntry lzd_reg;
106 struct lu_fid lzd_fid;
107 } __attribute__((packed));
110 /* cached SA attributes */
124 struct osd_thread_info {
125 const struct lu_env *oti_env;
127 struct lu_fid oti_fid;
129 * XXX temporary: for ->i_op calls.
131 struct timespec oti_time;
133 * XXX temporary: for capa operations.
135 struct lustre_capa_key oti_capa_key;
136 struct lustre_capa oti_capa;
138 struct ost_id oti_ostid;
142 /** osd iterator context used for iterator session */
144 struct osd_zap_it oti_it_zap;
145 struct osd_it_quota oti_it_quota;
149 char oti_key[MAXNAMELEN + 1];
151 struct lu_attr oti_la;
152 struct osa_attr oti_osa;
153 zap_attribute_t oti_za;
154 dmu_object_info_t oti_doi;
155 struct luz_direntry oti_zde;
158 extern struct lu_context_key osd_key;
160 static inline struct osd_thread_info *osd_oti_get(const struct lu_env *env)
162 return lu_context_key_get(&env->le_ctx, &osd_key);
166 struct thandle ot_super;
167 cfs_list_t ot_dcb_list;
168 cfs_list_t ot_sa_list;
169 cfs_semaphore_t ot_sa_lock;
171 __u32 ot_write_commit:1,
175 #define OSD_OI_NAME_SIZE 16
178 * Object Index (OI) instance.
181 char oi_name[OSD_OI_NAME_SIZE]; /* unused */
185 #define OSD_OST_MAP_SIZE 32
192 struct dt_device od_dt_dev;
193 /* information about underlying file system */
194 udmu_objset_t od_objset;
199 unsigned int od_fl_capa:1;
200 unsigned long od_capa_timeout;
202 struct lustre_capa_key *od_capa_keys;
203 cfs_hlist_head_t *od_capa_hash;
205 cfs_proc_dir_entry_t *od_proc_entry;
206 struct lprocfs_stats *od_stats;
209 struct osd_oi **od_oi_table;
210 unsigned int od_oi_count;
211 uint64_t od_ost_compat_dirs[OSD_OST_MAP_SIZE];
212 uint64_t od_ost_compat_grp0;
214 unsigned int od_rdonly:1,
215 od_quota_iused_est:1;
220 struct lu_site od_site;
222 /* object IDs of the inode accounting indexes */
223 uint64_t od_iusr_oid;
224 uint64_t od_igrp_oid;
226 /* quota slave instance */
227 struct qsd_instance *od_quota_slave;
229 /* used to debug zerocopy logic: the fields track all
230 * allocated, loaned and referenced buffers in use.
231 * to be removed once the change is tested well. */
232 cfs_atomic_t od_zerocopy_alloc;
233 cfs_atomic_t od_zerocopy_loan;
234 cfs_atomic_t od_zerocopy_pin;
236 arc_prune_t *arc_prune_cb;
240 struct dt_object oo_dt;
242 * Inode for file system object represented by this osd_object. This
243 * inode is pinned for the whole duration of lu_object life.
245 * Not modified concurrently (either setup early during object
246 * creation, or assigned by osd_object_create() under write lock).
249 sa_handle_t *oo_sa_hdl;
250 nvlist_t *oo_sa_xattr;
251 cfs_list_t oo_sa_linkage;
253 cfs_rw_semaphore_t oo_sem;
255 /* cached attributes */
256 cfs_rwlock_t oo_attr_lock;
257 struct lu_attr oo_attr;
259 /* protects extended attributes */
260 cfs_semaphore_t oo_guard;
263 /* record size for index file */
267 int osd_statfs(const struct lu_env *, struct dt_device *, struct obd_statfs *);
268 extern const struct dt_index_operations osd_acct_index_ops;
269 uint64_t osd_quota_fid2dmu(const struct lu_fid *fid);
270 extern struct lu_device_operations osd_lu_ops;
275 static inline int lu_device_is_osd(const struct lu_device *d)
277 return ergo(d != NULL && d->ld_ops != NULL, d->ld_ops == &osd_lu_ops);
280 static inline struct osd_object *osd_obj(const struct lu_object *o)
282 LASSERT(lu_device_is_osd(o->lo_dev));
283 return container_of0(o, struct osd_object, oo_dt.do_lu);
286 static inline struct osd_device *osd_dt_dev(const struct dt_device *d)
288 LASSERT(lu_device_is_osd(&d->dd_lu_dev));
289 return container_of0(d, struct osd_device, od_dt_dev);
292 static inline struct osd_device *osd_dev(const struct lu_device *d)
294 LASSERT(lu_device_is_osd(d));
295 return osd_dt_dev(container_of0(d, struct dt_device, dd_lu_dev));
298 static inline struct osd_object *osd_dt_obj(const struct dt_object *d)
300 return osd_obj(&d->do_lu);
303 static inline struct osd_device *osd_obj2dev(const struct osd_object *o)
305 return osd_dev(o->oo_dt.do_lu.lo_dev);
308 static inline struct lu_device *osd2lu_dev(struct osd_device *osd)
310 return &osd->od_dt_dev.dd_lu_dev;
313 static inline struct objset * osd_dtobj2objset(struct dt_object *o)
315 return osd_dev(o->do_lu.lo_dev)->od_objset.os;
318 static inline int osd_invariant(const struct osd_object *obj)
323 static inline int osd_object_invariant(const struct lu_object *l)
325 return osd_invariant(osd_obj(l));
331 LPROC_OSD_READ_BYTES = 0,
332 LPROC_OSD_WRITE_BYTES = 1,
333 LPROC_OSD_GET_PAGE = 2,
334 LPROC_OSD_NO_PAGE = 3,
335 LPROC_OSD_CACHE_ACCESS = 4,
336 LPROC_OSD_CACHE_HIT = 5,
337 LPROC_OSD_CACHE_MISS = 6,
338 LPROC_OSD_COPY_IO = 7,
339 LPROC_OSD_ZEROCOPY_IO = 8,
340 LPROC_OSD_TAIL_IO = 9,
345 extern struct lprocfs_vars lprocfs_osd_obd_vars[];
346 extern struct lprocfs_vars lprocfs_osd_module_vars[];
348 int osd_procfs_init(struct osd_device *osd, const char *name);
349 int osd_procfs_fini(struct osd_device *osd);
351 int udmu_zap_cursor_retrieve_key(const struct lu_env *env,
352 zap_cursor_t *zc, char *key, int max);
353 int udmu_zap_cursor_retrieve_value(const struct lu_env *env,
354 zap_cursor_t *zc, char *buf,
355 int buf_size, int *bytes_read);
358 void osd_object_sa_dirty_rele(struct osd_thandle *oh);
359 int __osd_obj2dbuf(const struct lu_env *env, objset_t *os,
360 uint64_t oid, dmu_buf_t **dbp, void *tag);
361 struct lu_object *osd_object_alloc(const struct lu_env *env,
362 const struct lu_object_header *hdr,
363 struct lu_device *d);
364 int osd_object_sa_update(struct osd_object *obj, sa_attr_type_t type,
365 void *buf, uint32_t buflen, struct osd_thandle *oh);
366 int __osd_zap_create(const struct lu_env *env, udmu_objset_t *uos,
367 dmu_buf_t **zap_dbp, dmu_tx_t *tx,
368 struct lu_attr *la, void *tag, zap_flags_t flags);
369 int __osd_object_create(const struct lu_env *env, udmu_objset_t *uos,
370 dmu_buf_t **dbp, dmu_tx_t *tx,
371 struct lu_attr *la, void *tag);
372 int __osd_object_free(udmu_objset_t *uos, uint64_t oid, dmu_tx_t *tx);
375 int osd_oi_init(const struct lu_env *env, struct osd_device *o);
376 void osd_oi_fini(const struct lu_env *env, struct osd_device *o);
377 int osd_fid_lookup(const struct lu_env *env,
378 struct osd_device *, const struct lu_fid *, uint64_t *);
379 uint64_t osd_get_name_n_idx(const struct lu_env *env, struct osd_device *osd,
380 const struct lu_fid *fid, char *buf);
381 int osd_options_init(void);
384 int osd_index_try(const struct lu_env *env, struct dt_object *dt,
385 const struct dt_index_features *feat);
389 int osd_xattr_get(const struct lu_env *env, struct dt_object *dt,
390 struct lu_buf *buf, const char *name,
391 struct lustre_capa *capa);
392 int osd_declare_xattr_set(const struct lu_env *env, struct dt_object *dt,
393 const struct lu_buf *buf, const char *name,
394 int fl, struct thandle *handle);
395 int osd_xattr_set(const struct lu_env *env, struct dt_object *dt,
396 const struct lu_buf *buf, const char *name, int fl,
397 struct thandle *handle, struct lustre_capa *capa);
398 int osd_declare_xattr_del(const struct lu_env *env, struct dt_object *dt,
399 const char *name, struct thandle *handle);
400 int osd_xattr_del(const struct lu_env *env, struct dt_object *dt,
401 const char *name, struct thandle *handle,
402 struct lustre_capa *capa);
403 int osd_xattr_list(const struct lu_env *env, struct dt_object *dt,
404 struct lu_buf *lb, struct lustre_capa *capa);
407 #endif /* _OSD_INTERNAL_H */