1 // SPDX-License-Identifier: GPL-2.0
2 /*
3 * (C) 2001 Clemson University and The University of Chicago
4 *
5 * See COPYING in top-level directory.
6 */
7
8 #include "protocol.h"
9 #include "orangefs-kernel.h"
10 #include "orangefs-bufmap.h"
11
12 #include <linux/parser.h>
13
14 /* a cache for orangefs-inode objects (i.e. orangefs inode private data) */
15 static struct kmem_cache *orangefs_inode_cache;
16
17 /* list for storing orangefs specific superblocks in use */
18 LIST_HEAD(orangefs_superblocks);
19
20 DEFINE_SPINLOCK(orangefs_superblocks_lock);
21
22 enum {
23 Opt_intr,
24 Opt_acl,
25 Opt_local_lock,
26
27 Opt_err
28 };
29
30 static const match_table_t tokens = {
31 { Opt_acl, "acl" },
32 { Opt_intr, "intr" },
33 { Opt_local_lock, "local_lock" },
34 { Opt_err, NULL }
35 };
36
37 uint64_t orangefs_features;
38
orangefs_show_options(struct seq_file * m,struct dentry * root)39 static int orangefs_show_options(struct seq_file *m, struct dentry *root)
40 {
41 struct orangefs_sb_info_s *orangefs_sb = ORANGEFS_SB(root->d_sb);
42
43 if (root->d_sb->s_flags & SB_POSIXACL)
44 seq_puts(m, ",acl");
45 if (orangefs_sb->flags & ORANGEFS_OPT_INTR)
46 seq_puts(m, ",intr");
47 if (orangefs_sb->flags & ORANGEFS_OPT_LOCAL_LOCK)
48 seq_puts(m, ",local_lock");
49 return 0;
50 }
51
parse_mount_options(struct super_block * sb,char * options,int silent)52 static int parse_mount_options(struct super_block *sb, char *options,
53 int silent)
54 {
55 struct orangefs_sb_info_s *orangefs_sb = ORANGEFS_SB(sb);
56 substring_t args[MAX_OPT_ARGS];
57 char *p;
58
59 /*
60 * Force any potential flags that might be set from the mount
61 * to zero, ie, initialize to unset.
62 */
63 sb->s_flags &= ~SB_POSIXACL;
64 orangefs_sb->flags &= ~ORANGEFS_OPT_INTR;
65 orangefs_sb->flags &= ~ORANGEFS_OPT_LOCAL_LOCK;
66
67 while ((p = strsep(&options, ",")) != NULL) {
68 int token;
69
70 if (!*p)
71 continue;
72
73 token = match_token(p, tokens, args);
74 switch (token) {
75 case Opt_acl:
76 sb->s_flags |= SB_POSIXACL;
77 break;
78 case Opt_intr:
79 orangefs_sb->flags |= ORANGEFS_OPT_INTR;
80 break;
81 case Opt_local_lock:
82 orangefs_sb->flags |= ORANGEFS_OPT_LOCAL_LOCK;
83 break;
84 default:
85 goto fail;
86 }
87 }
88
89 return 0;
90 fail:
91 if (!silent)
92 gossip_err("Error: mount option [%s] is not supported.\n", p);
93 return -EINVAL;
94 }
95
orangefs_inode_cache_ctor(void * req)96 static void orangefs_inode_cache_ctor(void *req)
97 {
98 struct orangefs_inode_s *orangefs_inode = req;
99
100 inode_init_once(&orangefs_inode->vfs_inode);
101 init_rwsem(&orangefs_inode->xattr_sem);
102 }
103
orangefs_alloc_inode(struct super_block * sb)104 static struct inode *orangefs_alloc_inode(struct super_block *sb)
105 {
106 struct orangefs_inode_s *orangefs_inode;
107
108 orangefs_inode = kmem_cache_alloc(orangefs_inode_cache, GFP_KERNEL);
109 if (!orangefs_inode)
110 return NULL;
111
112 /*
113 * We want to clear everything except for rw_semaphore and the
114 * vfs_inode.
115 */
116 memset(&orangefs_inode->refn.khandle, 0, 16);
117 orangefs_inode->refn.fs_id = ORANGEFS_FS_ID_NULL;
118 orangefs_inode->last_failed_block_index_read = 0;
119 memset(orangefs_inode->link_target, 0, sizeof(orangefs_inode->link_target));
120
121 gossip_debug(GOSSIP_SUPER_DEBUG,
122 "orangefs_alloc_inode: allocated %p\n",
123 &orangefs_inode->vfs_inode);
124 return &orangefs_inode->vfs_inode;
125 }
126
orangefs_i_callback(struct rcu_head * head)127 static void orangefs_i_callback(struct rcu_head *head)
128 {
129 struct inode *inode = container_of(head, struct inode, i_rcu);
130 struct orangefs_inode_s *orangefs_inode = ORANGEFS_I(inode);
131 kmem_cache_free(orangefs_inode_cache, orangefs_inode);
132 }
133
orangefs_destroy_inode(struct inode * inode)134 static void orangefs_destroy_inode(struct inode *inode)
135 {
136 struct orangefs_inode_s *orangefs_inode = ORANGEFS_I(inode);
137
138 gossip_debug(GOSSIP_SUPER_DEBUG,
139 "%s: deallocated %p destroying inode %pU\n",
140 __func__, orangefs_inode, get_khandle_from_ino(inode));
141
142 call_rcu(&inode->i_rcu, orangefs_i_callback);
143 }
144
145 /*
146 * NOTE: information filled in here is typically reflected in the
147 * output of the system command 'df'
148 */
orangefs_statfs(struct dentry * dentry,struct kstatfs * buf)149 static int orangefs_statfs(struct dentry *dentry, struct kstatfs *buf)
150 {
151 int ret = -ENOMEM;
152 struct orangefs_kernel_op_s *new_op = NULL;
153 int flags = 0;
154 struct super_block *sb = NULL;
155
156 sb = dentry->d_sb;
157
158 gossip_debug(GOSSIP_SUPER_DEBUG,
159 "%s: called on sb %p (fs_id is %d)\n",
160 __func__,
161 sb,
162 (int)(ORANGEFS_SB(sb)->fs_id));
163
164 new_op = op_alloc(ORANGEFS_VFS_OP_STATFS);
165 if (!new_op)
166 return ret;
167 new_op->upcall.req.statfs.fs_id = ORANGEFS_SB(sb)->fs_id;
168
169 if (ORANGEFS_SB(sb)->flags & ORANGEFS_OPT_INTR)
170 flags = ORANGEFS_OP_INTERRUPTIBLE;
171
172 ret = service_operation(new_op, "orangefs_statfs", flags);
173
174 if (new_op->downcall.status < 0)
175 goto out_op_release;
176
177 gossip_debug(GOSSIP_SUPER_DEBUG,
178 "%s: got %ld blocks available | "
179 "%ld blocks total | %ld block size | "
180 "%ld files total | %ld files avail\n",
181 __func__,
182 (long)new_op->downcall.resp.statfs.blocks_avail,
183 (long)new_op->downcall.resp.statfs.blocks_total,
184 (long)new_op->downcall.resp.statfs.block_size,
185 (long)new_op->downcall.resp.statfs.files_total,
186 (long)new_op->downcall.resp.statfs.files_avail);
187
188 buf->f_type = sb->s_magic;
189 memcpy(&buf->f_fsid, &ORANGEFS_SB(sb)->fs_id, sizeof(buf->f_fsid));
190 buf->f_bsize = new_op->downcall.resp.statfs.block_size;
191 buf->f_namelen = ORANGEFS_NAME_MAX;
192
193 buf->f_blocks = (sector_t) new_op->downcall.resp.statfs.blocks_total;
194 buf->f_bfree = (sector_t) new_op->downcall.resp.statfs.blocks_avail;
195 buf->f_bavail = (sector_t) new_op->downcall.resp.statfs.blocks_avail;
196 buf->f_files = (sector_t) new_op->downcall.resp.statfs.files_total;
197 buf->f_ffree = (sector_t) new_op->downcall.resp.statfs.files_avail;
198 buf->f_frsize = 0;
199
200 out_op_release:
201 op_release(new_op);
202 gossip_debug(GOSSIP_SUPER_DEBUG, "%s: returning %d\n", __func__, ret);
203 return ret;
204 }
205
206 /*
207 * Remount as initiated by VFS layer. We just need to reparse the mount
208 * options, no need to signal pvfs2-client-core about it.
209 */
orangefs_remount_fs(struct super_block * sb,int * flags,char * data)210 static int orangefs_remount_fs(struct super_block *sb, int *flags, char *data)
211 {
212 gossip_debug(GOSSIP_SUPER_DEBUG, "orangefs_remount_fs: called\n");
213 return parse_mount_options(sb, data, 1);
214 }
215
216 /*
217 * Remount as initiated by pvfs2-client-core on restart. This is used to
218 * repopulate mount information left from previous pvfs2-client-core.
219 *
220 * the idea here is that given a valid superblock, we're
221 * re-initializing the user space client with the initial mount
222 * information specified when the super block was first initialized.
223 * this is very different than the first initialization/creation of a
224 * superblock. we use the special service_priority_operation to make
225 * sure that the mount gets ahead of any other pending operation that
226 * is waiting for servicing. this means that the pvfs2-client won't
227 * fail to start several times for all other pending operations before
228 * the client regains all of the mount information from us.
229 * NOTE: this function assumes that the request_mutex is already acquired!
230 */
orangefs_remount(struct orangefs_sb_info_s * orangefs_sb)231 int orangefs_remount(struct orangefs_sb_info_s *orangefs_sb)
232 {
233 struct orangefs_kernel_op_s *new_op;
234 int ret = -EINVAL;
235
236 gossip_debug(GOSSIP_SUPER_DEBUG, "orangefs_remount: called\n");
237
238 new_op = op_alloc(ORANGEFS_VFS_OP_FS_MOUNT);
239 if (!new_op)
240 return -ENOMEM;
241 strncpy(new_op->upcall.req.fs_mount.orangefs_config_server,
242 orangefs_sb->devname,
243 ORANGEFS_MAX_SERVER_ADDR_LEN);
244
245 gossip_debug(GOSSIP_SUPER_DEBUG,
246 "Attempting ORANGEFS Remount via host %s\n",
247 new_op->upcall.req.fs_mount.orangefs_config_server);
248
249 /*
250 * we assume that the calling function has already acquired the
251 * request_mutex to prevent other operations from bypassing
252 * this one
253 */
254 ret = service_operation(new_op, "orangefs_remount",
255 ORANGEFS_OP_PRIORITY | ORANGEFS_OP_NO_MUTEX);
256 gossip_debug(GOSSIP_SUPER_DEBUG,
257 "orangefs_remount: mount got return value of %d\n",
258 ret);
259 if (ret == 0) {
260 /*
261 * store the id assigned to this sb -- it's just a
262 * short-lived mapping that the system interface uses
263 * to map this superblock to a particular mount entry
264 */
265 orangefs_sb->id = new_op->downcall.resp.fs_mount.id;
266 orangefs_sb->mount_pending = 0;
267 }
268
269 op_release(new_op);
270
271 if (orangefs_userspace_version >= 20906) {
272 new_op = op_alloc(ORANGEFS_VFS_OP_FEATURES);
273 if (!new_op)
274 return -ENOMEM;
275 new_op->upcall.req.features.features = 0;
276 ret = service_operation(new_op, "orangefs_features",
277 ORANGEFS_OP_PRIORITY | ORANGEFS_OP_NO_MUTEX);
278 if (!ret)
279 orangefs_features =
280 new_op->downcall.resp.features.features;
281 else
282 orangefs_features = 0;
283 op_release(new_op);
284 } else {
285 orangefs_features = 0;
286 }
287
288 return ret;
289 }
290
fsid_key_table_initialize(void)291 int fsid_key_table_initialize(void)
292 {
293 return 0;
294 }
295
fsid_key_table_finalize(void)296 void fsid_key_table_finalize(void)
297 {
298 }
299
300 static const struct super_operations orangefs_s_ops = {
301 .alloc_inode = orangefs_alloc_inode,
302 .destroy_inode = orangefs_destroy_inode,
303 .drop_inode = generic_delete_inode,
304 .statfs = orangefs_statfs,
305 .remount_fs = orangefs_remount_fs,
306 .show_options = orangefs_show_options,
307 };
308
orangefs_fh_to_dentry(struct super_block * sb,struct fid * fid,int fh_len,int fh_type)309 static struct dentry *orangefs_fh_to_dentry(struct super_block *sb,
310 struct fid *fid,
311 int fh_len,
312 int fh_type)
313 {
314 struct orangefs_object_kref refn;
315
316 if (fh_len < 5 || fh_type > 2)
317 return NULL;
318
319 ORANGEFS_khandle_from(&(refn.khandle), fid->raw, 16);
320 refn.fs_id = (u32) fid->raw[4];
321 gossip_debug(GOSSIP_SUPER_DEBUG,
322 "fh_to_dentry: handle %pU, fs_id %d\n",
323 &refn.khandle,
324 refn.fs_id);
325
326 return d_obtain_alias(orangefs_iget(sb, &refn));
327 }
328
orangefs_encode_fh(struct inode * inode,__u32 * fh,int * max_len,struct inode * parent)329 static int orangefs_encode_fh(struct inode *inode,
330 __u32 *fh,
331 int *max_len,
332 struct inode *parent)
333 {
334 int len = parent ? 10 : 5;
335 int type = 1;
336 struct orangefs_object_kref refn;
337
338 if (*max_len < len) {
339 gossip_err("fh buffer is too small for encoding\n");
340 *max_len = len;
341 type = 255;
342 goto out;
343 }
344
345 refn = ORANGEFS_I(inode)->refn;
346 ORANGEFS_khandle_to(&refn.khandle, fh, 16);
347 fh[4] = refn.fs_id;
348
349 gossip_debug(GOSSIP_SUPER_DEBUG,
350 "Encoding fh: handle %pU, fsid %u\n",
351 &refn.khandle,
352 refn.fs_id);
353
354
355 if (parent) {
356 refn = ORANGEFS_I(parent)->refn;
357 ORANGEFS_khandle_to(&refn.khandle, (char *) fh + 20, 16);
358 fh[9] = refn.fs_id;
359
360 type = 2;
361 gossip_debug(GOSSIP_SUPER_DEBUG,
362 "Encoding parent: handle %pU, fsid %u\n",
363 &refn.khandle,
364 refn.fs_id);
365 }
366 *max_len = len;
367
368 out:
369 return type;
370 }
371
372 static const struct export_operations orangefs_export_ops = {
373 .encode_fh = orangefs_encode_fh,
374 .fh_to_dentry = orangefs_fh_to_dentry,
375 };
376
orangefs_unmount(int id,__s32 fs_id,const char * devname)377 static int orangefs_unmount(int id, __s32 fs_id, const char *devname)
378 {
379 struct orangefs_kernel_op_s *op;
380 int r;
381 op = op_alloc(ORANGEFS_VFS_OP_FS_UMOUNT);
382 if (!op)
383 return -ENOMEM;
384 op->upcall.req.fs_umount.id = id;
385 op->upcall.req.fs_umount.fs_id = fs_id;
386 strncpy(op->upcall.req.fs_umount.orangefs_config_server,
387 devname, ORANGEFS_MAX_SERVER_ADDR_LEN - 1);
388 r = service_operation(op, "orangefs_fs_umount", 0);
389 /* Not much to do about an error here. */
390 if (r)
391 gossip_err("orangefs_unmount: service_operation %d\n", r);
392 op_release(op);
393 return r;
394 }
395
orangefs_fill_sb(struct super_block * sb,struct orangefs_fs_mount_response * fs_mount,void * data,int silent)396 static int orangefs_fill_sb(struct super_block *sb,
397 struct orangefs_fs_mount_response *fs_mount,
398 void *data, int silent)
399 {
400 int ret = -EINVAL;
401 struct inode *root = NULL;
402 struct dentry *root_dentry = NULL;
403 struct orangefs_object_kref root_object;
404
405 /* alloc and init our private orangefs sb info */
406 sb->s_fs_info = kzalloc(sizeof(struct orangefs_sb_info_s), GFP_KERNEL);
407 if (!ORANGEFS_SB(sb))
408 return -ENOMEM;
409 ORANGEFS_SB(sb)->sb = sb;
410
411 ORANGEFS_SB(sb)->root_khandle = fs_mount->root_khandle;
412 ORANGEFS_SB(sb)->fs_id = fs_mount->fs_id;
413 ORANGEFS_SB(sb)->id = fs_mount->id;
414
415 if (data) {
416 ret = parse_mount_options(sb, data, silent);
417 if (ret)
418 return ret;
419 }
420
421 /* Hang the xattr handlers off the superblock */
422 sb->s_xattr = orangefs_xattr_handlers;
423 sb->s_magic = ORANGEFS_SUPER_MAGIC;
424 sb->s_op = &orangefs_s_ops;
425 sb->s_d_op = &orangefs_dentry_operations;
426
427 sb->s_blocksize = PAGE_SIZE;
428 sb->s_blocksize_bits = PAGE_SHIFT;
429 sb->s_maxbytes = MAX_LFS_FILESIZE;
430
431 root_object.khandle = ORANGEFS_SB(sb)->root_khandle;
432 root_object.fs_id = ORANGEFS_SB(sb)->fs_id;
433 gossip_debug(GOSSIP_SUPER_DEBUG,
434 "get inode %pU, fsid %d\n",
435 &root_object.khandle,
436 root_object.fs_id);
437
438 root = orangefs_iget(sb, &root_object);
439 if (IS_ERR(root))
440 return PTR_ERR(root);
441
442 gossip_debug(GOSSIP_SUPER_DEBUG,
443 "Allocated root inode [%p] with mode %x\n",
444 root,
445 root->i_mode);
446
447 /* allocates and places root dentry in dcache */
448 root_dentry = d_make_root(root);
449 if (!root_dentry)
450 return -ENOMEM;
451
452 sb->s_export_op = &orangefs_export_ops;
453 sb->s_root = root_dentry;
454 return 0;
455 }
456
orangefs_mount(struct file_system_type * fst,int flags,const char * devname,void * data)457 struct dentry *orangefs_mount(struct file_system_type *fst,
458 int flags,
459 const char *devname,
460 void *data)
461 {
462 int ret = -EINVAL;
463 struct super_block *sb = ERR_PTR(-EINVAL);
464 struct orangefs_kernel_op_s *new_op;
465 struct dentry *d = ERR_PTR(-EINVAL);
466
467 gossip_debug(GOSSIP_SUPER_DEBUG,
468 "orangefs_mount: called with devname %s\n",
469 devname);
470
471 if (!devname) {
472 gossip_err("ERROR: device name not specified.\n");
473 return ERR_PTR(-EINVAL);
474 }
475
476 new_op = op_alloc(ORANGEFS_VFS_OP_FS_MOUNT);
477 if (!new_op)
478 return ERR_PTR(-ENOMEM);
479
480 strncpy(new_op->upcall.req.fs_mount.orangefs_config_server,
481 devname,
482 ORANGEFS_MAX_SERVER_ADDR_LEN - 1);
483
484 gossip_debug(GOSSIP_SUPER_DEBUG,
485 "Attempting ORANGEFS Mount via host %s\n",
486 new_op->upcall.req.fs_mount.orangefs_config_server);
487
488 ret = service_operation(new_op, "orangefs_mount", 0);
489 gossip_debug(GOSSIP_SUPER_DEBUG,
490 "orangefs_mount: mount got return value of %d\n", ret);
491 if (ret)
492 goto free_op;
493
494 if (new_op->downcall.resp.fs_mount.fs_id == ORANGEFS_FS_ID_NULL) {
495 gossip_err("ERROR: Retrieved null fs_id\n");
496 ret = -EINVAL;
497 goto free_op;
498 }
499
500 sb = sget(fst, NULL, set_anon_super, flags, NULL);
501
502 if (IS_ERR(sb)) {
503 d = ERR_CAST(sb);
504 orangefs_unmount(new_op->downcall.resp.fs_mount.id,
505 new_op->downcall.resp.fs_mount.fs_id, devname);
506 goto free_op;
507 }
508
509 ret = orangefs_fill_sb(sb,
510 &new_op->downcall.resp.fs_mount, data,
511 flags & SB_SILENT ? 1 : 0);
512
513 if (ret) {
514 d = ERR_PTR(ret);
515 goto free_sb_and_op;
516 }
517
518 /*
519 * on successful mount, store the devname and data
520 * used
521 */
522 strncpy(ORANGEFS_SB(sb)->devname,
523 devname,
524 ORANGEFS_MAX_SERVER_ADDR_LEN - 1);
525
526 /* mount_pending must be cleared */
527 ORANGEFS_SB(sb)->mount_pending = 0;
528
529 /*
530 * finally, add this sb to our list of known orangefs
531 * sb's
532 */
533 gossip_debug(GOSSIP_SUPER_DEBUG,
534 "Adding SB %p to orangefs superblocks\n",
535 ORANGEFS_SB(sb));
536 spin_lock(&orangefs_superblocks_lock);
537 list_add_tail(&ORANGEFS_SB(sb)->list, &orangefs_superblocks);
538 spin_unlock(&orangefs_superblocks_lock);
539 op_release(new_op);
540
541 /* Must be removed from the list now. */
542 ORANGEFS_SB(sb)->no_list = 0;
543
544 if (orangefs_userspace_version >= 20906) {
545 new_op = op_alloc(ORANGEFS_VFS_OP_FEATURES);
546 if (!new_op)
547 return ERR_PTR(-ENOMEM);
548 new_op->upcall.req.features.features = 0;
549 ret = service_operation(new_op, "orangefs_features", 0);
550 orangefs_features = new_op->downcall.resp.features.features;
551 op_release(new_op);
552 } else {
553 orangefs_features = 0;
554 }
555
556 return dget(sb->s_root);
557
558 free_sb_and_op:
559 /* Will call orangefs_kill_sb with sb not in list. */
560 ORANGEFS_SB(sb)->no_list = 1;
561 /* ORANGEFS_VFS_OP_FS_UMOUNT is done by orangefs_kill_sb. */
562 deactivate_locked_super(sb);
563 free_op:
564 gossip_err("orangefs_mount: mount request failed with %d\n", ret);
565 if (ret == -EINVAL) {
566 gossip_err("Ensure that all orangefs-servers have the same FS configuration files\n");
567 gossip_err("Look at pvfs2-client-core log file (typically /tmp/pvfs2-client.log) for more details\n");
568 }
569
570 op_release(new_op);
571
572 return d;
573 }
574
orangefs_kill_sb(struct super_block * sb)575 void orangefs_kill_sb(struct super_block *sb)
576 {
577 int r;
578 gossip_debug(GOSSIP_SUPER_DEBUG, "orangefs_kill_sb: called\n");
579
580 /* provided sb cleanup */
581 kill_anon_super(sb);
582
583 if (!ORANGEFS_SB(sb)) {
584 mutex_lock(&orangefs_request_mutex);
585 mutex_unlock(&orangefs_request_mutex);
586 return;
587 }
588 /*
589 * issue the unmount to userspace to tell it to remove the
590 * dynamic mount info it has for this superblock
591 */
592 r = orangefs_unmount(ORANGEFS_SB(sb)->id, ORANGEFS_SB(sb)->fs_id,
593 ORANGEFS_SB(sb)->devname);
594 if (!r)
595 ORANGEFS_SB(sb)->mount_pending = 1;
596
597 if (!ORANGEFS_SB(sb)->no_list) {
598 /* remove the sb from our list of orangefs specific sb's */
599 spin_lock(&orangefs_superblocks_lock);
600 /* not list_del_init */
601 __list_del_entry(&ORANGEFS_SB(sb)->list);
602 ORANGEFS_SB(sb)->list.prev = NULL;
603 spin_unlock(&orangefs_superblocks_lock);
604 }
605
606 /*
607 * make sure that ORANGEFS_DEV_REMOUNT_ALL loop that might've seen us
608 * gets completed before we free the dang thing.
609 */
610 mutex_lock(&orangefs_request_mutex);
611 mutex_unlock(&orangefs_request_mutex);
612
613 /* free the orangefs superblock private data */
614 kfree(ORANGEFS_SB(sb));
615 }
616
orangefs_inode_cache_initialize(void)617 int orangefs_inode_cache_initialize(void)
618 {
619 orangefs_inode_cache = kmem_cache_create_usercopy(
620 "orangefs_inode_cache",
621 sizeof(struct orangefs_inode_s),
622 0,
623 ORANGEFS_CACHE_CREATE_FLAGS,
624 offsetof(struct orangefs_inode_s,
625 link_target),
626 sizeof_field(struct orangefs_inode_s,
627 link_target),
628 orangefs_inode_cache_ctor);
629
630 if (!orangefs_inode_cache) {
631 gossip_err("Cannot create orangefs_inode_cache\n");
632 return -ENOMEM;
633 }
634 return 0;
635 }
636
orangefs_inode_cache_finalize(void)637 int orangefs_inode_cache_finalize(void)
638 {
639 kmem_cache_destroy(orangefs_inode_cache);
640 return 0;
641 }
642