1 /* -*- mode: c; c-basic-offset: 8; indent-tabs-mode: nil; -*-
2 * vim:expandtab:shiftwidth=8:tabstop=8:
6 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
8 * This program is free software; you can redistribute it and/or modify
9 * it under the terms of the GNU General Public License version 2 only,
10 * as published by the Free Software Foundation.
12 * This program is distributed in the hope that it will be useful, but
13 * WITHOUT ANY WARRANTY; without even the implied warranty of
14 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
15 * General Public License version 2 for more details (a copy is included
16 * in the LICENSE file that accompanied this code).
18 * You should have received a copy of the GNU General Public License
19 * version 2 along with this program; If not, see
20 * http://www.sun.com/software/products/lustre/docs/GPLv2.pdf
22 * Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa Clara,
23 * CA 95054 USA or visit www.sun.com if you need additional information or
29 * Copyright (c) 2003, 2010, Oracle and/or its affiliates. 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.
37 #ifndef _FILTER_INTERNAL_H
38 #define _FILTER_INTERNAL_H
41 # include <linux/spinlock.h>
43 #include <lustre_handles.h>
44 #include <lustre_debug.h>
46 #include <obd_class.h>
47 #include <lprocfs_status.h>
49 #define FILTER_LAYOUT_VERSION "2"
51 #define FILTER_INIT_OBJID 0
53 #define FILTER_SUBDIR_COUNT 32 /* set to zero for no subdirs */
54 #define FILTER_GROUPS 3 /* must be at least 3; not dynamic yet */
56 #define FILTER_ROCOMPAT_SUPP (0)
58 #define FILTER_INCOMPAT_SUPP (OBD_INCOMPAT_GROUPS | OBD_INCOMPAT_OST | \
59 OBD_INCOMPAT_COMMON_LR)
61 #define FILTER_GRANT_CHUNK (2ULL * PTLRPC_MAX_BRW_SIZE)
62 #define FILTER_GRANT_SHRINK_LIMIT (16ULL * FILTER_GRANT_CHUNK)
63 #define GRANT_FOR_LLOG(obd) 16
65 extern struct file_operations filter_per_export_stats_fops;
66 extern struct file_operations filter_per_nid_stats_fops;
68 /* Limit the returned fields marked valid to those that we actually might set */
69 #define FILTER_VALID_FLAGS (OBD_MD_FLTYPE | OBD_MD_FLMODE | OBD_MD_FLGENER |\
70 OBD_MD_FLSIZE | OBD_MD_FLBLOCKS | OBD_MD_FLBLKSZ|\
71 OBD_MD_FLATIME | OBD_MD_FLMTIME | OBD_MD_FLCTIME)
73 /* per-client-per-object persistent state (LRU) */
74 struct filter_mod_data {
75 cfs_list_t fmd_list; /* linked to fed_mod_list */
76 __u64 fmd_id; /* object being written to */
77 __u64 fmd_gr; /* group being written to */
78 __u64 fmd_mactime_xid;/* xid highest {m,a,c}time
80 unsigned long fmd_expire; /* jiffies when it should expire */
81 int fmd_refcount; /* reference counter, list holds 1 */
84 #ifdef HAVE_BGL_SUPPORT
85 #define FILTER_FMD_MAX_NUM_DEFAULT 128 /* many active files per client on BGL */
87 #define FILTER_FMD_MAX_NUM_DEFAULT 32
89 /* Client cache seconds */
90 #define FILTER_FMD_MAX_AGE_DEFAULT ((obd_timeout + 10) * CFS_HZ)
92 #ifndef HAVE_PAGE_CONSTANT
93 #define mapping_cap_page_constant_write(mapping) 0
94 #define SetPageConstant(page) do {} while (0)
95 #define ClearPageConstant(page) do {} while (0)
98 struct filter_mod_data *filter_fmd_find(struct obd_export *exp,
99 obd_id objid, obd_seq seq);
100 struct filter_mod_data *filter_fmd_get(struct obd_export *exp,
101 obd_id objid, obd_seq seq);
102 void filter_fmd_put(struct obd_export *exp, struct filter_mod_data *fmd);
103 void filter_fmd_expire(struct obd_export *exp);
106 LPROC_FILTER_READ_BYTES = 0,
107 LPROC_FILTER_WRITE_BYTES = 1,
108 LPROC_FILTER_GET_PAGE = 2,
109 LPROC_FILTER_NO_PAGE = 3,
110 LPROC_FILTER_CACHE_ACCESS = 4,
111 LPROC_FILTER_CACHE_HIT = 5,
112 LPROC_FILTER_CACHE_MISS = 6,
116 //#define FILTER_MAX_CACHE_SIZE (32 * 1024 * 1024) /* was OBD_OBJECT_EOF */
117 #define FILTER_MAX_CACHE_SIZE OBD_OBJECT_EOF
119 /* We have to pass a 'created' array to fsfilt_map_inode_pages() which we
120 * then ignore. So we pre-allocate one that everyone can use... */
121 #define OBDFILTER_CREATED_SCRATCHPAD_ENTRIES 1024
122 extern int *obdfilter_created_scratchpad;
124 extern void target_recovery_fini(struct obd_device *obd);
125 extern void target_recovery_init(struct lu_target *lut,
126 svc_handler_t handler);
129 void f_dput(struct dentry *);
130 struct dentry *filter_fid2dentry(struct obd_device *, struct dentry *dir,
131 obd_seq seq, obd_id id);
132 struct dentry *__filter_oa2dentry(struct obd_device *obd, struct ost_id *ostid,
133 const char *what, int quiet);
134 #define filter_oa2dentry(obd, ostid) __filter_oa2dentry(obd, ostid, \
137 int filter_finish_transno(struct obd_export *, struct inode *,
138 struct obd_trans_info *, int rc, int force_sync);
139 __u64 filter_next_id(struct filter_obd *, struct obdo *);
140 __u64 filter_last_id(struct filter_obd *, obd_seq seq);
141 int filter_update_fidea(struct obd_export *exp, struct inode *inode,
142 void *handle, struct obdo *oa);
143 int filter_update_server_data(struct obd_device *);
144 int filter_update_last_objid(struct obd_device *, obd_seq, int force_sync);
145 int filter_common_setup(struct obd_device *, struct lustre_cfg *lcfg,
147 int filter_destroy(struct obd_export *exp, struct obdo *oa,
148 struct lov_stripe_md *md, struct obd_trans_info *,
149 struct obd_export *, void *);
150 int filter_setattr_internal(struct obd_export *exp, struct dentry *dentry,
151 struct obdo *oa, struct obd_trans_info *oti);
152 int filter_setattr(struct obd_export *exp, struct obd_info *oinfo,
153 struct obd_trans_info *oti);
155 int filter_create(struct obd_export *exp, struct obdo *oa,
156 struct lov_stripe_md **ea, struct obd_trans_info *oti);
158 struct obd_llog_group *filter_find_olg(struct obd_device *obd, int seq);
161 extern struct ldlm_valblock_ops filter_lvbo;
165 int filter_preprw(int cmd, struct obd_export *, struct obdo *, int objcount,
166 struct obd_ioobj *, struct niobuf_remote *,
167 int *, struct niobuf_local *, struct obd_trans_info *,
168 struct lustre_capa *);
169 int filter_commitrw(int cmd, struct obd_export *, struct obdo *, int objcount,
170 struct obd_ioobj *, struct niobuf_remote *, int,
171 struct niobuf_local *, struct obd_trans_info *, int rc);
172 int filter_brw(int cmd, struct obd_export *, struct obd_info *oinfo,
173 obd_count oa_bufs, struct brw_page *pga, struct obd_trans_info *);
174 void filter_release_cache(struct obd_device *, struct obd_ioobj *,
175 struct niobuf_remote *, struct inode *);
179 int filter_commitrw_write(struct obd_export *exp, struct obdo *oa, int objcount,
180 struct obd_ioobj *obj, struct niobuf_remote *, int,
181 struct niobuf_local *res, struct obd_trans_info *oti,
183 obd_size filter_grant_space_left(struct obd_export *exp);
184 long filter_grant(struct obd_export *exp, obd_size current_grant,
185 obd_size want, obd_size fs_space_left, int conservative);
186 void filter_grant_commit(struct obd_export *exp, int niocount,
187 struct niobuf_local *res);
188 void filter_grant_incoming(struct obd_export *exp, struct obdo *oa);
189 struct filter_iobuf *filter_alloc_iobuf(struct filter_obd *, int rw,
191 void filter_free_iobuf(struct filter_iobuf *iobuf);
192 int filter_iobuf_add_page(struct obd_device *obd, struct filter_iobuf *iobuf,
193 struct inode *inode, struct page *page);
194 void *filter_iobuf_get(struct filter_obd *filter, struct obd_trans_info *oti);
195 void filter_iobuf_put(struct filter_obd *filter, struct filter_iobuf *iobuf,
196 struct obd_trans_info *oti);
197 int filter_direct_io(int rw, struct dentry *dchild, struct filter_iobuf *iobuf,
198 struct obd_export *exp, struct iattr *attr,
199 struct obd_trans_info *oti, void **wait_handle);
200 int filter_clear_truncated_page(struct inode *inode);
203 struct ost_filterdata {
206 int filter_log_sz_change(struct llog_handle *cathandle,
207 struct ll_fid *mds_fid,
209 struct llog_cookie *logcookie,
210 struct inode *inode);
211 //int filter_get_catalog(struct obd_device *);
212 void filter_cancel_cookies_cb(struct obd_device *obd, __u64 transno,
213 void *cb_data, int error);
214 int filter_recov_log_mds_ost_cb(struct llog_handle *llh,
215 struct llog_rec_hdr *rec, void *data);
218 void filter_tally(struct obd_export *exp, struct page **pages, int nr_pages,
219 unsigned long *blocks, int blocks_per_page, int wr);
220 int lproc_filter_attach_seqstat(struct obd_device *dev);
221 void lprocfs_filter_init_vars(struct lprocfs_static_vars *lvars);
223 static inline void filter_tally(struct obd_export *exp, struct page **pages,
224 int nr_pages, unsigned long *blocks,
225 int blocks_per_page, int wr) {}
226 static inline int lproc_filter_attach_seqstat(struct obd_device *dev) {}
227 static void lprocfs_filter_init_vars(struct lprocfs_static_vars *lvars)
229 memset(lvars, 0, sizeof(*lvars));
234 extern quota_interface_t *filter_quota_interface_ref;
236 int filter_update_capa_key(struct obd_device *obd, struct lustre_capa_key *key);
237 int filter_auth_capa(struct obd_export *exp, struct lu_fid *fid, obd_seq seq,
238 struct lustre_capa *capa, __u64 opc);
239 int filter_capa_fixoa(struct obd_export *exp, struct obdo *oa, obd_seq seq,
240 struct lustre_capa *capa);
241 void filter_free_capa_keys(struct filter_obd *filter);
243 void blacklist_add(uid_t uid);
244 void blacklist_del(uid_t uid);
245 int blacklist_display(char *buf, int bufsize);
247 /* sync on lock cancel is useless when we force a journal flush,
248 * and if we enable async journal commit, we should also turn on
249 * sync on lock cancel if it is not enabled already. */
250 static inline void filter_slc_set(struct filter_obd *filter)
252 if (filter->fo_syncjournal == 1)
253 filter->fo_sync_lock_cancel = NEVER_SYNC_ON_CANCEL;
254 else if (filter->fo_sync_lock_cancel == NEVER_SYNC_ON_CANCEL)
255 filter->fo_sync_lock_cancel = ALWAYS_SYNC_ON_CANCEL;
258 #endif /* _FILTER_INTERNAL_H */