lustre/include/linux/lustre_fsfilt.h

   1 /* -*- mode: c; c-basic-offset: 8; indent-tabs-mode: nil; -*-
   2  * vim:expandtab:shiftwidth=8:tabstop=8:
   3  *
   4  *  Copyright (C) 2001-2004 Cluster File Systems, Inc. <info@clusterfs.com>
   5  *
   6  *   This file is part of Lustre, http://www.lustre.org.
   7  *
   8  *   Lustre is free software; you can redistribute it and/or
   9  *   modify it under the terms of version 2 of the GNU General Public
  10  *   License as published by the Free Software Foundation.
  11  *
  12  *   Lustre is distributed in the hope that it will be useful,
  13  *   but WITHOUT ANY WARRANTY; without even the implied warranty of
  14  *   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  15  *   GNU General Public License for more details.
  16  *
  17  *   You should have received a copy of the GNU General Public License
  18  *   along with Lustre; if not, write to the Free Software
  19  *   Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
  20  *
  21  * Filesystem interface helper.
  22  *
  23  */
  24
  25 #ifndef _LUSTRE_FSFILT_H
  26 #define _LUSTRE_FSFILT_H
  27
  28 #ifdef __KERNEL__
  29
  30 #include <linux/obd.h>
  31 #include <linux/lustre_log.h>
  32 #include <linux/obd_class.h>
  33
  34 typedef void (*fsfilt_cb_t)(struct obd_device *obd, __u64 last_rcvd,
  35                             void *data, int error);
  36
  37 struct fsfilt_objinfo {
  38         struct dentry *fso_dentry;
  39         int fso_bufcnt;
  40 };
  41
  42 /* lustre EA type (MEA, LOV, etc.) */
  43 enum ea_type {
  44         EA_LOV   = (1 << 0),
  45         EA_MEA   = (1 << 1),
  46         EA_SID   = (1 << 2),
  47         EA_MID   = (1 << 3),
  48         EA_KEY   = (1 << 4),
  49         EA_PID   = (1 << 5),
  50 };
  51
  52 struct fsfilt_operations {
  53         struct list_head fs_list;
  54         struct module *fs_owner;
  55         char   *fs_type;
  56
  57         void   *(* fs_start)(struct inode *inode, int op, void *desc_private,
  58                              int logs);
  59         void   *(* fs_brw_start)(int objcount, struct fsfilt_objinfo *fso,
  60                                  int niocount, struct niobuf_local *nb,
  61                                  void *desc_private, int logs);
  62         int     (* fs_commit)(struct super_block *sb, struct inode *inode,
  63                               void *handle,int force_sync);
  64         int     (* fs_commit_async)(struct inode *inode, void *handle,
  65                                         void **wait_handle);
  66         int     (* fs_commit_wait)(struct inode *inode, void *handle);
  67         int     (* fs_setattr)(struct dentry *dentry, void *handle,
  68                                struct iattr *iattr, int do_trunc);
  69         int     (* fs_iocontrol)(struct inode *inode, struct file *file,
  70                                  unsigned int cmd, unsigned long arg);
  71
  72         /* two methods for setting getting diff. kind of EAs from inode. */
  73         int     (* fs_set_md)(struct inode *inode, void *handle, void *md,
  74                               int size, enum ea_type type);
  75         int     (* fs_get_md)(struct inode *inode, void *md, int size,
  76                               enum ea_type type);
  77
  78         int     (* fs_send_bio)(int rw, struct inode *inode, void *bio);
  79
  80         /* methods for getting page from backing fs and putting page there
  81          * during IO. Used on OST. */
  82         int (* fs_putpage)(struct inode *inode, struct page *page);
  83         struct page *(* fs_getpage)(struct inode *inode, long int index);
  84
  85         ssize_t (* fs_readpage)(struct file *file, char *buf, size_t count,
  86                                 loff_t *offset);
  87         int     (* fs_add_journal_cb)(struct obd_device *obd,
  88                                       struct super_block *sb,
  89                                       __u64 last_rcvd, void *handle,
  90                                       fsfilt_cb_t cb_func, void *cb_data);
  91         int     (* fs_statfs)(struct super_block *sb, struct obd_statfs *osfs);
  92         int     (* fs_sync)(struct super_block *sb);
  93         int     (* fs_map_inode_pages)(struct inode *inode, struct page **page,
  94                                        int pages, unsigned long *blocks,
  95                                        int *created, int create,
  96                                        struct semaphore *sem);
  97         int     (* fs_prep_san_write)(struct inode *inode, long *blocks,
  98                                       int nblocks, loff_t newsize);
  99         int     (* fs_write_record)(struct file *, void *, int size, loff_t *,
 100                                     int force_sync);
 101         int     (* fs_read_record)(struct file *, void *, int size, loff_t *);
 102         int     (* fs_setup)(struct obd_device *, struct super_block *);
 103
 104         int     (* fs_post_setup)(struct obd_device *obd, struct vfsmount *mnt,
 105                                   struct dentry *dentry);
 106         int     (* fs_post_cleanup)(struct obd_device *obd, struct vfsmount *mnt);
 107         int     (* fs_set_info)(struct super_block *, struct inode *,
 108                                 __u32, void *, __u32, void *);
 109         int     (* fs_get_info)(struct super_block *, struct inode *,
 110                                 __u32, void *, __u32 *, void *);
 111         int     (* fs_set_fs_flags)(struct inode *inode, int flags);
 112         int     (* fs_clear_fs_flags)(struct inode *inode, int flags);
 113         int     (* fs_set_ost_flags)(struct super_block *sb);
 114         int     (* fs_set_mds_flags)(struct super_block *sb);
 115         int     (* fs_precreate_rec)(struct dentry *dentry, int *num,
 116                                      struct obdo *oa);
 117         int     (* fs_set_xattr)(struct inode *inode, void *handle, char *name,
 118                                  void *buffer, int buffer_size);
 119         int     (* fs_get_xattr)(struct inode *inode, char *name,
 120                                  void *buffer, int buffer_size);
 121
 122         int     (* fs_init_extents_ea)(struct inode *inode);
 123         int     (* fs_insert_extents_ea)(struct inode *inode, unsigned long from,
 124                                          unsigned long num);
 125         int     (* fs_do_write_cow)(struct dentry *dentry, void *extents, int nexts);
 126         int     (* fs_write_extents)(struct dentry *dentry,
 127                                      unsigned long offset, unsigned long blks);
 128         int     (* fs_get_fs_flags)(struct dentry *dentry);
 129         int     (* fs_remove_extents_ea)(struct inode *inode, unsigned long from,
 130                                          unsigned long num);
 131         int     (* fs_get_ino_write_extents)(struct super_block *sb, ino_t ino,
 132                                              char **pbuf, int *size);
 133         int     (* fs_free_write_extents)(struct super_block *sb, ino_t ino,
 134                                           char *pbuf, int size);
 135         int     (* fs_get_inode_write_extents)(struct inode *inode, char **pbuf,
 136                                                int *size);
 137         int     (* fs_get_write_extents_num)(struct inode *inode, int* size);
 138
 139         int     (* fs_get_op_len)(int, struct fsfilt_objinfo *, int);
 140         int     (* fs_add_dir_entry)(struct obd_device *, struct dentry *,
 141                                      char *, int, unsigned long, unsigned long,
 142                                      unsigned long, unsigned long);
 143         int     (* fs_del_dir_entry)(struct obd_device *, struct dentry *);
 144         /*snap operations*/
 145         int     (* fs_is_redirector)(struct inode *inode);
 146         int     (* fs_is_indirect)(struct inode *inode);
 147
 148         struct inode * (* fs_create_indirect)(struct inode *pri, int index,
 149                                               unsigned int gen,
 150                                               struct inode *parent,
 151                                               int del);
 152         struct inode * (* fs_get_indirect)(struct inode *pri, int *table,
 153                                           int slot);
 154         ino_t   (* fs_get_indirect_ino)(struct super_block *sb, ino_t pri,
 155                                         int index);
 156         int     (* fs_destroy_indirect)(struct inode *pri, int index,
 157                                         struct inode *next_ind);
 158         int     (* fs_restore_indirect)(struct inode *pri, int index);
 159         int     (* fs_iterate)(struct super_block *sb,
 160                               int (*repeat)(struct inode *inode, void *priv),
 161                               struct inode **start, void *priv, int flag);
 162         int     (* fs_copy_block)(struct inode *dst, struct inode *src,
 163                                   int blk);
 164         int     (* fs_set_indirect)(struct inode *pri, int index,
 165                                     ino_t ind_ino, ino_t parent_ino);
 166         int     (* fs_snap_feature)(struct super_block *sb, int feature,
 167                                     int op);
 168         int     (* fs_set_snap_info)(struct inode *inode, void* key,
 169                                      __u32 keylen, void *val, __u32 *vallen);
 170         int     (* fs_get_snap_info)(struct inode *inode, void* key,
 171                                      __u32 keylen, void *val, __u32 *vallen);
 172         int     (* fs_set_snap_item)(struct super_block *sb, char *name);
 173         int     (* fs_read_dotsnap_dir_page)(struct file *file, char *buf,
 174                                              size_t count, loff_t *ppos);
 175         int     (* fs_dir_ent_size)(char *name);
 176         int     (* fs_set_dir_ent)(struct super_block *sb, char *name,
 177                                    char *buf, int buf_off, int nlen,
 178                                    size_t count);
 179 };
 180
 181 extern int fsfilt_register_ops(struct fsfilt_operations *fs_ops);
 182 extern void fsfilt_unregister_ops(struct fsfilt_operations *fs_ops);
 183 extern struct fsfilt_operations *fsfilt_get_ops(const char *type);
 184 extern void fsfilt_put_ops(struct fsfilt_operations *fs_ops);
 185
 186 #define FSFILT_OP_UNLINK         1
 187 #define FSFILT_OP_RMDIR          2
 188 #define FSFILT_OP_RENAME         3
 189 #define FSFILT_OP_CREATE         4
 190 #define FSFILT_OP_MKDIR          5
 191 #define FSFILT_OP_SYMLINK        6
 192 #define FSFILT_OP_MKNOD          7
 193 #define FSFILT_OP_SETATTR        8
 194 #define FSFILT_OP_LINK           9
 195 #define FSFILT_OP_CANCEL_UNLINK 10
 196 #define FSFILT_OP_NOOP          15
 197
 198 /* XXX BUG 3188 -- must return to one set of opcodes */
 199 #define KML_UNLINK              0x11
 200 #define KML_RMDIR               0x12
 201 #define KML_RENAME              0x13
 202 #define KML_CREATE              0x14
 203 #define KML_MKDIR               0x15
 204 #define KML_SYMLINK             0x16
 205 #define KML_MKNOD               0x17
 206 #define KML_LINK                0x19
 207
 208 #define CACHE_UNLINK            0x21
 209 #define CACHE_RMDIR             0x22
 210 #define CACHE_RENAME            0x23
 211 #define CACHE_CREATE            0x24
 212 #define CACHE_MKDIR             0x25
 213 #define CACHE_SYMLINK           0x26
 214 #define CACHE_MKNOD             0x27
 215 #define CACHE_LINK              0x29
 216 #define CACHE_NOOP              0x2f
 217
 218 #define KML_CACHE_UNLINK        0x31
 219 #define KML_CACHE_RMDIR         0x32
 220 #define KML_CACHE_RENAME        0x33
 221 #define KML_CACHE_CREATE        0x34
 222 #define KML_CACHE_MKDIR         0x35
 223 #define KML_CACHE_SYMLINK       0x36
 224 #define KML_CACHE_MKNOD         0x37
 225 #define KML_CACHE_LINK          0x39
 226 #define KML_CACHE_NOOP          0x3f
 227
 228 /*for fsfilt set md ea*/
 229 #define LMV_EA  1
 230 #define LOV_EA  0
 231
 232 #define fsfilt_check_slow(start, timeout, msg)                          \
 233 do {                                                                    \
 234         if (time_before(jiffies, start + 15 * HZ))                      \
 235                 break;                                                  \
 236         else if (time_before(jiffies, start + timeout / 2 * HZ))        \
 237                 CWARN("slow %s %lus\n", msg, (jiffies - start) / HZ);   \
 238         else                                                            \
 239                 CERROR("slow %s %lus\n", msg, (jiffies - start) / HZ);  \
 240 } while (0)
 241
 242 static inline void *
 243 fsfilt_start_ops(struct fsfilt_operations *ops, struct inode *inode,
 244                  int op, struct obd_trans_info *oti, int logs)
 245 {
 246         unsigned long now = jiffies;
 247         void *parent_handle = oti ? oti->oti_handle : NULL;
 248         void *handle = ops->fs_start(inode, op, parent_handle, logs);
 249         CDEBUG(D_INFO, "started handle %p (%p)\n", handle, parent_handle);
 250
 251         if (oti != NULL) {
 252                 if (parent_handle == NULL) {
 253                         oti->oti_handle = handle;
 254                 } else if (handle != parent_handle) {
 255                         CERROR("mismatch: parent %p, handle %p, oti %p\n",
 256                                parent_handle, handle, oti);
 257                         LBUG();
 258                 }
 259         }
 260         fsfilt_check_slow(now, 60, "journal start");
 261         return handle;
 262 }
 263
 264 static inline void *
 265 fsfilt_start_log(struct obd_device *obd, struct inode *inode,
 266                  int op, struct obd_trans_info *oti, int logs)
 267 {
 268         return fsfilt_start_ops(obd->obd_fsops, inode, op, oti, logs);
 269 }
 270
 271 static inline void *
 272 fsfilt_start(struct obd_device *obd, struct inode *inode,
 273              int op, struct obd_trans_info *oti)
 274 {
 275         return fsfilt_start_ops(obd->obd_fsops, inode, op, oti, 0);
 276 }
 277
 278 static inline void *
 279 llog_fsfilt_start(struct llog_ctxt *ctxt, struct inode *inode,
 280                   int op, struct obd_trans_info *oti)
 281 {
 282         return fsfilt_start_ops(ctxt->loc_fsops, inode, op, oti, 1);
 283 }
 284
 285 static inline int
 286 fsfilt_commit_ops(struct fsfilt_operations *ops, struct super_block *sb,
 287                   struct inode *inode, void *handle, int force_sync)
 288 {
 289         unsigned long now = jiffies;
 290         int rc = ops->fs_commit(sb, inode, handle, force_sync);
 291         CDEBUG(D_INFO, "committing handle %p\n", handle);
 292
 293         fsfilt_check_slow(now, 60, "journal start");
 294
 295         return rc;
 296 }
 297
 298 static inline int
 299 fsfilt_commit(struct obd_device *obd, struct super_block *sb,
 300               struct inode *inode, void *handle, int force_sync)
 301 {
 302         return fsfilt_commit_ops(obd->obd_fsops, sb, inode, handle, force_sync);
 303 }
 304
 305 static inline int
 306 llog_fsfilt_commit(struct llog_ctxt *ctxt, struct inode *inode,
 307                    void *handle, int force_sync)
 308 {
 309         return fsfilt_commit_ops(ctxt->loc_fsops, inode->i_sb, inode, handle,
 310                                  force_sync);
 311 }
 312
 313 static inline void *
 314 fsfilt_brw_start_log(struct obd_device *obd, int objcount,
 315                      struct fsfilt_objinfo *fso, int niocount,
 316                      struct niobuf_local *nb, struct obd_trans_info *oti,
 317                      int logs)
 318 {
 319         unsigned long now = jiffies;
 320         void *parent_handle = oti ? oti->oti_handle : NULL;
 321         void *handle = obd->obd_fsops->fs_brw_start(objcount, fso, niocount, nb,
 322                                                     parent_handle, logs);
 323         CDEBUG(D_INFO, "started handle %p (%p)\n", handle, parent_handle);
 324
 325         if (oti != NULL) {
 326                 if (parent_handle == NULL) {
 327                         oti->oti_handle = handle;
 328                 } else if (handle != parent_handle) {
 329                         CERROR("mismatch: parent %p, handle %p, oti %p\n",
 330                                parent_handle, handle, oti);
 331                         LBUG();
 332                 }
 333         }
 334         fsfilt_check_slow(now, obd_timeout, "journal start");
 335
 336         return handle;
 337 }
 338
 339 static inline void *
 340 fsfilt_brw_start(struct obd_device *obd, int objcount,
 341                  struct fsfilt_objinfo *fso, int niocount,
 342                  struct niobuf_local *nb, struct obd_trans_info *oti)
 343 {
 344         return fsfilt_brw_start_log(obd, objcount, fso, niocount, nb, oti, 0);
 345 }
 346
 347 static inline int
 348 fsfilt_commit_async(struct obd_device *obd, struct inode *inode,
 349                     void *handle, void **wait_handle)
 350 {
 351         unsigned long now = jiffies;
 352         int rc = obd->obd_fsops->fs_commit_async(inode, handle, wait_handle);
 353
 354         CDEBUG(D_INFO, "committing handle %p (async)\n", *wait_handle);
 355         fsfilt_check_slow(now, obd_timeout, "journal start");
 356
 357         return rc;
 358 }
 359
 360 static inline int
 361 fsfilt_commit_wait(struct obd_device *obd, struct inode *inode, void *handle)
 362 {
 363         unsigned long now = jiffies;
 364         int rc = obd->obd_fsops->fs_commit_wait(inode, handle);
 365         CDEBUG(D_INFO, "waiting for completion %p\n", handle);
 366         fsfilt_check_slow(now, obd_timeout, "journal start");
 367         return rc;
 368 }
 369
 370 static inline int
 371 fsfilt_setattr(struct obd_device *obd, struct dentry *dentry,
 372                void *handle, struct iattr *iattr, int do_trunc)
 373 {
 374         unsigned long now = jiffies;
 375         int rc;
 376         rc = obd->obd_fsops->fs_setattr(dentry, handle, iattr, do_trunc);
 377         fsfilt_check_slow(now, obd_timeout, "setattr");
 378         return rc;
 379 }
 380
 381 static inline int
 382 fsfilt_iocontrol(struct obd_device *obd, struct inode *inode,
 383                  struct file *file, unsigned int cmd,
 384                  unsigned long arg)
 385 {
 386         return obd->obd_fsops->fs_iocontrol(inode, file, cmd, arg);
 387 }
 388
 389 static inline int fsfilt_setup(struct obd_device *obd,
 390                                struct super_block *fs)
 391 {
 392         if (obd->obd_fsops->fs_setup)
 393                 return obd->obd_fsops->fs_setup(obd, fs);
 394         return 0;
 395 }
 396
 397 static inline int
 398 fsfilt_set_md(struct obd_device *obd, struct inode *inode,
 399               void *handle, void *md, int size, enum ea_type type)
 400 {
 401         if (!obd->obd_fsops->fs_set_md)
 402                 return -ENOSYS;
 403
 404         return obd->obd_fsops->fs_set_md(inode, handle, md,
 405                                          size, type);
 406 }
 407
 408 static inline int
 409 fsfilt_get_md(struct obd_device *obd, struct inode *inode,
 410               void *md, int size, enum ea_type type)
 411 {
 412         if (!obd->obd_fsops->fs_get_md)
 413                 return -ENOSYS;
 414
 415         return obd->obd_fsops->fs_get_md(inode, md, size,
 416                                          type);
 417 }
 418
 419 static inline int fsfilt_send_bio(int rw, struct obd_device *obd,
 420                                   struct inode *inode, void *bio)
 421 {
 422         LASSERTF(rw == OBD_BRW_WRITE || rw == OBD_BRW_READ, "%x\n", rw);
 423
 424         if (rw == OBD_BRW_READ)
 425                 return obd->obd_fsops->fs_send_bio(READ, inode, bio);
 426         else
 427                 return obd->obd_fsops->fs_send_bio(WRITE, inode, bio);
 428 }
 429
 430 static inline int
 431 fsfilt_putpage(struct obd_device *obd, struct inode *inode,
 432                struct page *page)
 433 {
 434         int rc = 0;
 435         struct filter_obd *filter;
 436         unsigned long now = jiffies;
 437
 438         LASSERT(obd != NULL);
 439         LASSERT(inode != NULL);
 440         LASSERT(page != NULL);
 441
 442         filter = &obd->u.filter;
 443
 444         if (!obd->obd_fsops->fs_putpage)
 445                 return -ENOSYS;
 446
 447         CDEBUG(D_INFO, "putpage %lx\n", page->index);
 448
 449         rc = obd->obd_fsops->fs_putpage(inode, page);
 450
 451         fsfilt_check_slow(now, obd_timeout, "putpage");
 452
 453         return rc;
 454 }
 455
 456 static inline struct page *
 457 fsfilt_getpage(struct obd_device *obd, struct inode *inode,
 458                unsigned long index)
 459 {
 460         struct page *page;
 461         unsigned long now = jiffies;
 462
 463         LASSERT(obd != NULL);
 464         LASSERT(inode != NULL);
 465
 466         if (!obd->obd_fsops->fs_getpage)
 467                 return ERR_PTR(-ENOSYS);
 468
 469         CDEBUG(D_INFO, "getpage %lx\n", index);
 470
 471         page = obd->obd_fsops->fs_getpage(inode, index);
 472
 473         fsfilt_check_slow(now, obd_timeout, "getpage");
 474
 475         return page;
 476 }
 477
 478 static inline ssize_t
 479 fsfilt_readpage(struct obd_device *obd, struct file *file, char *buf,
 480                 size_t count, loff_t *offset)
 481 {
 482         return obd->obd_fsops->fs_readpage(file, buf, count, offset);
 483 }
 484
 485 static inline int
 486 fsfilt_add_journal_cb(struct obd_device *obd, struct super_block *sb,
 487                       __u64 last_num, void *handle, fsfilt_cb_t cb_func,
 488                       void *cb_data)
 489 {
 490         return obd->obd_fsops->fs_add_journal_cb(obd, sb, last_num, handle,
 491                                                  cb_func, cb_data);
 492 }
 493
 494 /* very similar to obd_statfs(), but caller already holds obd_osfs_lock */
 495 static inline int
 496 fsfilt_statfs(struct obd_device *obd, struct super_block *sb,
 497               unsigned long max_age)
 498 {
 499         int rc = 0;
 500
 501         CDEBUG(D_SUPER, "osfs %lu, max_age %lu\n", obd->obd_osfs_age, max_age);
 502         if (time_before(obd->obd_osfs_age, max_age)) {
 503                 rc = obd->obd_fsops->fs_statfs(sb, &obd->obd_osfs);
 504                 if (rc == 0) /* N.B. statfs can't really fail */
 505                         obd->obd_osfs_age = jiffies;
 506         } else {
 507                 CDEBUG(D_SUPER, "using cached obd_statfs data\n");
 508         }
 509
 510         return rc;
 511 }
 512
 513 static inline int
 514 fsfilt_sync(struct obd_device *obd, struct super_block *sb)
 515 {
 516         return obd->obd_fsops->fs_sync(sb);
 517 }
 518
 519 static inline int fsfilt_map_inode_pages(struct obd_device *obd,
 520                                          struct inode *inode,
 521                                          struct page **page, int pages,
 522                                          unsigned long *blocks, int *created,
 523                                          int create, struct semaphore *sem)
 524 {
 525         return obd->obd_fsops->fs_map_inode_pages(inode, page, pages, blocks,
 526                                                   created, create, sem);
 527 }
 528 static inline int fsfilt_get_fs_flags(struct obd_device *obd,
 529                                       struct dentry *dentry)
 530 {
 531         if (obd->obd_fsops->fs_get_fs_flags)
 532                 return obd->obd_fsops->fs_get_fs_flags(dentry);
 533         return 0;
 534 }
 535
 536 static inline int
 537 fsfilt_write_extents(struct obd_device *obd, struct dentry *dentry,
 538                      unsigned long offset, unsigned long blks)
 539 {
 540         if (obd->obd_fsops->fs_write_extents)
 541                 return obd->obd_fsops->fs_write_extents(dentry,
 542                                                         offset, blks);
 543         return 0;
 544 }
 545 static inline int
 546 fsfilt_do_write_cow(struct obd_device *obd, struct dentry *dentry,
 547                     void *extents, int num_extents)
 548 {
 549         if (obd->obd_fsops->fs_do_write_cow)
 550                 return obd->obd_fsops->fs_do_write_cow(dentry, extents,
 551                                                        num_extents);
 552         return 0;
 553 }
 554 static inline int
 555 fs_prep_san_write(struct obd_device *obd, struct inode *inode,
 556                   long *blocks, int nblocks, loff_t newsize)
 557 {
 558         return obd->obd_fsops->fs_prep_san_write(inode, blocks,
 559                                                  nblocks, newsize);
 560 }
 561
 562 static inline int
 563 fsfilt_read_record(struct obd_device *obd, struct file *file,
 564                    void *buf, loff_t size, loff_t *offs)
 565 {
 566         return obd->obd_fsops->fs_read_record(file, buf, size, offs);
 567 }
 568
 569 static inline int
 570 llog_fsfilt_read_record(struct llog_ctxt *ctxt, struct file *file,
 571                         void *buf, loff_t size, loff_t *offs)
 572 {
 573         return ctxt->loc_fsops->fs_read_record(file, buf, size, offs);
 574 }
 575
 576 static inline int
 577 fsfilt_write_record(struct obd_device *obd, struct file *file,
 578                     void *buf, loff_t size, loff_t *offs, int force_sync)
 579 {
 580         return obd->obd_fsops->fs_write_record(file, buf, size, offs,
 581                                                force_sync);
 582 }
 583
 584 static inline int
 585 llog_fsfilt_write_record(struct llog_ctxt *ctxt, struct file *file,
 586                          void *buf, loff_t size, loff_t *offs,
 587                          int force_sync)
 588 {
 589         return ctxt->loc_fsops->fs_write_record(file, buf, size, offs,
 590                                                 force_sync);
 591 }
 592
 593 static inline int
 594 fsfilt_set_fs_flags(struct obd_device *obd, struct inode *inode, int flags)
 595 {
 596         if (obd->obd_fsops->fs_set_fs_flags)
 597                 return obd->obd_fsops->fs_set_fs_flags(inode, flags);
 598         return 0;
 599 }
 600
 601 static inline int
 602 fsfilt_clear_fs_flags(struct obd_device *obd, struct inode *inode, int flags)
 603 {
 604         if (obd->obd_fsops->fs_clear_fs_flags)
 605                 return obd->obd_fsops->fs_clear_fs_flags(inode, flags);
 606         return 0;
 607 }
 608
 609 static inline int
 610 fsfilt_precreate_rec(struct obd_device *obd, struct dentry *dentry,
 611                      int *num, struct obdo *oa)
 612 {
 613         if (obd->obd_fsops->fs_precreate_rec)
 614                 return obd->obd_fsops->fs_precreate_rec(dentry, num, oa);
 615         return 0;
 616 }
 617
 618 static inline int
 619 fsfilt_post_setup(struct obd_device *obd, struct dentry *de)
 620 {
 621         if (obd->obd_fsops->fs_post_setup)
 622                 return obd->obd_fsops->fs_post_setup(obd,
 623                                 obd->obd_lvfs_ctxt.pwdmnt, de);
 624         return 0;
 625 }
 626
 627 static inline int
 628 fsfilt_post_cleanup(struct obd_device *obd)
 629 {
 630         if (obd->obd_fsops->fs_post_cleanup)
 631                 return obd->obd_fsops->fs_post_cleanup(obd,
 632                                 obd->obd_lvfs_ctxt.pwdmnt);
 633         return 0;
 634 }
 635
 636 static inline int
 637 fsfilt_get_ino_write_extents(struct obd_device *obd,
 638                              struct super_block *sb,
 639                              int ino, char **buf, int *size)
 640 {
 641         if (obd->obd_fsops->fs_get_ino_write_extents)
 642                 return obd->obd_fsops->fs_get_ino_write_extents(sb, ino,
 643                                                                 buf, size);
 644         return 0;
 645 }
 646
 647 static inline int
 648 fsfilt_free_write_extents(struct obd_device *obd,
 649                           struct super_block *sb,
 650                           int ino, char *buf, int size)
 651 {
 652         if (obd->obd_fsops->fs_free_write_extents)
 653                 return obd->obd_fsops->fs_free_write_extents(sb, ino,
 654                                                              buf, size);
 655         return 0;
 656 }
 657
 658 static inline int
 659 fsfilt_set_info(struct obd_device *obd, struct super_block *sb,
 660                 struct inode * inode, __u32 keylen, void * key,
 661                 __u32 valsize, void * val)
 662 {
 663         if (obd->obd_fsops->fs_set_info)
 664                 return obd->obd_fsops->fs_set_info(sb, inode,
 665                                                    keylen, key,
 666                                                    valsize, val);
 667         return 0;
 668 }
 669
 670 static inline int
 671 fsfilt_get_info(struct obd_device *obd, struct super_block *sb,
 672                 struct inode * inode, __u32 keylen, void * key,
 673                 __u32 * valsize, void * val)
 674 {
 675         if (obd->obd_fsops->fs_get_info)
 676                 return obd->obd_fsops->fs_get_info(sb, inode, keylen, key,
 677                                                    valsize, val);
 678         return 0;
 679 }
 680
 681 static inline int
 682 fsfilt_set_ost_flags(struct obd_device *obd, struct super_block *sb)
 683 {
 684         if (obd->obd_fsops->fs_set_ost_flags)
 685                 return obd->obd_fsops->fs_set_ost_flags(sb);
 686         return 0;
 687 }
 688
 689 static inline int
 690 fsfilt_set_mds_flags(struct obd_device *obd, struct super_block *sb)
 691 {
 692         if (obd->obd_fsops->fs_set_mds_flags)
 693                 return obd->obd_fsops->fs_set_mds_flags(sb);
 694         return 0;
 695 }
 696
 697 static inline int
 698 fsfilt_add_dir_entry(struct obd_device *obd, struct dentry *dir,
 699                      char *name, int namelen, unsigned long ino,
 700                      unsigned long generation, unsigned long mds,
 701                      unsigned long fid)
 702 {
 703         LASSERT(obd->obd_fsops->fs_add_dir_entry);
 704
 705         return obd->obd_fsops->fs_add_dir_entry(obd, dir, name,
 706                                                 namelen, ino,
 707                                                 generation, mds,
 708                                                 fid);
 709 }
 710
 711 static inline int
 712 fsfilt_del_dir_entry(struct obd_device *obd, struct dentry *dentry)
 713 {
 714         LASSERT(obd->obd_fsops->fs_del_dir_entry);
 715         return obd->obd_fsops->fs_del_dir_entry(obd, dentry);
 716 }
 717
 718 static inline int
 719 fsfilt_set_snap_item(struct obd_device *obd, struct super_block *sb,
 720                      char *name)
 721 {
 722          if (obd->obd_fsops->fs_set_snap_item)
 723                 return obd->obd_fsops->fs_set_snap_item(sb, name);
 724         return 0;
 725 }
 726 #endif /* __KERNEL__ */
 727
 728 #endif