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 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.
37 #ifndef _FILTER_INTERNAL_H
38 #define _FILTER_INTERNAL_H
41 # include <linux/spinlock.h>
43 #include <lustre_disk.h>
44 #include <lustre_handles.h>
45 #include <lustre_debug.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 GRANT_FOR_LLOG(obd) 16
64 extern struct file_operations filter_per_export_stats_fops;
65 extern struct file_operations filter_per_nid_stats_fops;
67 /* Limit the returned fields marked valid to those that we actually might set */
68 #define FILTER_VALID_FLAGS (OBD_MD_FLTYPE | OBD_MD_FLMODE | OBD_MD_FLGENER |\
69 OBD_MD_FLSIZE | OBD_MD_FLBLOCKS | OBD_MD_FLBLKSZ|\
70 OBD_MD_FLATIME | OBD_MD_FLMTIME | OBD_MD_FLCTIME)
72 /* per-client-per-object persistent state (LRU) */
73 struct filter_mod_data {
74 struct list_head fmd_list; /* linked to fed_mod_list */
75 __u64 fmd_id; /* object being written to */
76 __u64 fmd_gr; /* group being written to */
77 __u64 fmd_mactime_xid;/* xid highest {m,a,c}time setattr */
78 unsigned long fmd_expire; /* jiffies when it should expire */
79 int fmd_refcount; /* reference counter - list holds 1 */
82 #ifdef HAVE_BGL_SUPPORT
83 #define FILTER_FMD_MAX_NUM_DEFAULT 128 /* many active files per client on BGL */
85 #define FILTER_FMD_MAX_NUM_DEFAULT 32
87 /* Client cache seconds */
88 #define FILTER_FMD_MAX_AGE_DEFAULT ((obd_timeout + 10) * HZ)
90 #ifndef HAVE_PAGE_CONSTANT
91 #define mapping_cap_page_constant_write(mapping) 0
92 #define SetPageConstant(page) do {} while (0)
93 #define ClearPageConstant(page) do {} while (0)
96 struct filter_mod_data *filter_fmd_find(struct obd_export *exp,
97 obd_id objid, obd_gr group);
98 struct filter_mod_data *filter_fmd_get(struct obd_export *exp,
99 obd_id objid, obd_gr group);
100 void filter_fmd_put(struct obd_export *exp, struct filter_mod_data *fmd);
101 void filter_fmd_expire(struct obd_export *exp);
104 LPROC_FILTER_READ_BYTES = 0,
105 LPROC_FILTER_WRITE_BYTES = 1,
106 LPROC_FILTER_GET_PAGE = 2,
107 LPROC_FILTER_NO_PAGE = 3,
108 LPROC_FILTER_CACHE_ACCESS = 4,
109 LPROC_FILTER_CACHE_HIT = 5,
110 LPROC_FILTER_CACHE_MISS = 6,
114 //#define FILTER_MAX_CACHE_SIZE (32 * 1024 * 1024) /* was OBD_OBJECT_EOF */
115 #define FILTER_MAX_CACHE_SIZE OBD_OBJECT_EOF
117 /* We have to pass a 'created' array to fsfilt_map_inode_pages() which we
118 * then ignore. So we pre-allocate one that everyone can use... */
119 #define OBDFILTER_CREATED_SCRATCHPAD_ENTRIES 1024
120 extern int *obdfilter_created_scratchpad;
123 void f_dput(struct dentry *);
124 struct dentry *filter_fid2dentry(struct obd_device *, struct dentry *dir,
125 obd_gr group, obd_id id);
126 struct dentry *__filter_oa2dentry(struct obd_device *obd, struct obdo *oa,
127 const char *what, int quiet);
128 #define filter_oa2dentry(obd, oa) __filter_oa2dentry(obd, oa, __FUNCTION__, 0)
130 int filter_finish_transno(struct obd_export *, struct inode *,
131 struct obd_trans_info *, int rc, int force_sync);
132 __u64 filter_next_id(struct filter_obd *, struct obdo *);
133 __u64 filter_last_id(struct filter_obd *, obd_gr group);
134 int filter_update_fidea(struct obd_export *exp, struct inode *inode,
135 void *handle, struct obdo *oa);
136 int filter_update_server_data(struct obd_device *, struct file *,
137 struct lr_server_data *, int force_sync);
138 int filter_update_last_objid(struct obd_device *, obd_gr, int force_sync);
139 int filter_common_setup(struct obd_device *, obd_count len, void *buf,
141 int filter_destroy(struct obd_export *exp, struct obdo *oa,
142 struct lov_stripe_md *md, struct obd_trans_info *,
143 struct obd_export *);
144 int filter_setattr_internal(struct obd_export *exp, struct dentry *dentry,
145 struct obdo *oa, struct obd_trans_info *oti);
146 int filter_setattr(struct obd_export *exp, struct obd_info *oinfo,
147 struct obd_trans_info *oti);
148 int filter_recreate(struct obd_device *obd, struct obdo *oa);
150 struct dentry *filter_create_object(struct obd_device *obd, struct obdo *oa);
153 extern struct ldlm_valblock_ops filter_lvbo;
157 int filter_preprw(int cmd, struct obd_export *, struct obdo *, int objcount,
158 struct obd_ioobj *, struct niobuf_remote *,
159 int *, struct niobuf_local *, struct obd_trans_info *);
160 int filter_commitrw(int cmd, struct obd_export *, struct obdo *, int objcount,
161 struct obd_ioobj *, struct niobuf_remote *, int,
162 struct niobuf_local *, struct obd_trans_info *, int rc);
163 int filter_brw(int cmd, struct obd_export *, struct obd_info *oinfo,
164 obd_count oa_bufs, struct brw_page *pga, struct obd_trans_info *);
165 void filter_invalidate_cache(struct obd_device *, struct obd_ioobj *,
166 struct niobuf_remote *, struct inode *);
170 int filter_commitrw_write(struct obd_export *exp, struct obdo *oa, int objcount,
171 struct obd_ioobj *obj, struct niobuf_remote *, int,
172 struct niobuf_local *res, struct obd_trans_info *oti,
174 obd_size filter_grant_space_left(struct obd_export *exp);
175 long filter_grant(struct obd_export *exp, obd_size current_grant,
176 obd_size want, obd_size fs_space_left);
177 void filter_grant_commit(struct obd_export *exp, int niocount,
178 struct niobuf_local *res);
179 struct filter_iobuf *filter_alloc_iobuf(struct filter_obd *, int rw,
181 void filter_free_iobuf(struct filter_iobuf *iobuf);
182 int filter_iobuf_add_page(struct obd_device *obd, struct filter_iobuf *iobuf,
183 struct inode *inode, struct page *page);
184 void *filter_iobuf_get(struct filter_obd *filter, struct obd_trans_info *oti);
185 void filter_iobuf_put(struct filter_obd *filter, struct filter_iobuf *iobuf,
186 struct obd_trans_info *oti);
187 int filter_direct_io(int rw, struct dentry *dchild, struct filter_iobuf *iobuf,
188 struct obd_export *exp, struct iattr *attr,
189 struct obd_trans_info *oti, void **wait_handle);
190 int filter_clear_truncated_page(struct inode *inode);
193 struct ost_filterdata {
196 int filter_log_sz_change(struct llog_handle *cathandle,
197 struct ll_fid *mds_fid,
199 struct llog_cookie *logcookie,
200 struct inode *inode);
201 //int filter_get_catalog(struct obd_device *);
202 void filter_cancel_cookies_cb(struct obd_device *obd, __u64 transno,
203 void *cb_data, int error);
204 int filter_recov_log_mds_ost_cb(struct llog_handle *llh,
205 struct llog_rec_hdr *rec, void *data);
208 void filter_tally(struct obd_export *exp, struct page **pages, int nr_pages,
209 unsigned long *blocks, int blocks_per_page, int wr);
210 int lproc_filter_attach_seqstat(struct obd_device *dev);
211 void lprocfs_filter_init_vars(struct lprocfs_static_vars *lvars);
213 static inline void filter_tally(struct obd_export *exp, struct page **pages,
214 int nr_pages, unsigned long *blocks,
215 int blocks_per_page, int wr) {}
216 static inline int lproc_filter_attach_seqstat(struct obd_device *dev) {}
217 static void lprocfs_filter_init_vars(struct lprocfs_static_vars *lvars)
219 memset(lvars, 0, sizeof(*lvars));
224 extern quota_interface_t *filter_quota_interface_ref;
227 #endif /* _FILTER_INTERNAL_H */