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3e9b4a5e BS |
1 | /* |
2 | * Copyright (c) 2006 PathScale, Inc. All rights reserved. | |
3 | * | |
4 | * This software is available to you under a choice of one of two | |
5 | * licenses. You may choose to be licensed under the terms of the GNU | |
6 | * General Public License (GPL) Version 2, available from the file | |
7 | * COPYING in the main directory of this source tree, or the | |
8 | * OpenIB.org BSD license below: | |
9 | * | |
10 | * Redistribution and use in source and binary forms, with or | |
11 | * without modification, are permitted provided that the following | |
12 | * conditions are met: | |
13 | * | |
14 | * - Redistributions of source code must retain the above | |
15 | * copyright notice, this list of conditions and the following | |
16 | * disclaimer. | |
17 | * | |
18 | * - Redistributions in binary form must reproduce the above | |
19 | * copyright notice, this list of conditions and the following | |
20 | * disclaimer in the documentation and/or other materials | |
21 | * provided with the distribution. | |
22 | * | |
23 | * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, | |
24 | * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF | |
25 | * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND | |
26 | * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS | |
27 | * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN | |
28 | * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN | |
29 | * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE | |
30 | * SOFTWARE. | |
31 | */ | |
32 | ||
33 | #include <linux/version.h> | |
34 | #include <linux/config.h> | |
35 | #include <linux/module.h> | |
36 | #include <linux/fs.h> | |
37 | #include <linux/mount.h> | |
38 | #include <linux/pagemap.h> | |
39 | #include <linux/init.h> | |
40 | #include <linux/namei.h> | |
41 | #include <linux/pci.h> | |
42 | ||
43 | #include "ipath_kernel.h" | |
44 | ||
45 | #define IPATHFS_MAGIC 0x726a77 | |
46 | ||
47 | static struct super_block *ipath_super; | |
48 | ||
49 | static int ipathfs_mknod(struct inode *dir, struct dentry *dentry, | |
50 | int mode, struct file_operations *fops, | |
51 | void *data) | |
52 | { | |
53 | int error; | |
54 | struct inode *inode = new_inode(dir->i_sb); | |
55 | ||
56 | if (!inode) { | |
57 | error = -EPERM; | |
58 | goto bail; | |
59 | } | |
60 | ||
61 | inode->i_mode = mode; | |
62 | inode->i_uid = 0; | |
63 | inode->i_gid = 0; | |
64 | inode->i_blksize = PAGE_CACHE_SIZE; | |
65 | inode->i_blocks = 0; | |
66 | inode->i_atime = inode->i_mtime = inode->i_ctime = CURRENT_TIME; | |
67 | inode->u.generic_ip = data; | |
68 | if ((mode & S_IFMT) == S_IFDIR) { | |
69 | inode->i_op = &simple_dir_inode_operations; | |
70 | inode->i_nlink++; | |
71 | dir->i_nlink++; | |
72 | } | |
73 | ||
74 | inode->i_fop = fops; | |
75 | ||
76 | d_instantiate(dentry, inode); | |
77 | error = 0; | |
78 | ||
79 | bail: | |
80 | return error; | |
81 | } | |
82 | ||
83 | static int create_file(const char *name, mode_t mode, | |
84 | struct dentry *parent, struct dentry **dentry, | |
85 | struct file_operations *fops, void *data) | |
86 | { | |
87 | int error; | |
88 | ||
89 | *dentry = NULL; | |
90 | mutex_lock(&parent->d_inode->i_mutex); | |
91 | *dentry = lookup_one_len(name, parent, strlen(name)); | |
92 | if (!IS_ERR(dentry)) | |
93 | error = ipathfs_mknod(parent->d_inode, *dentry, | |
94 | mode, fops, data); | |
95 | else | |
96 | error = PTR_ERR(dentry); | |
97 | mutex_unlock(&parent->d_inode->i_mutex); | |
98 | ||
99 | return error; | |
100 | } | |
101 | ||
102 | static ssize_t atomic_stats_read(struct file *file, char __user *buf, | |
103 | size_t count, loff_t *ppos) | |
104 | { | |
105 | return simple_read_from_buffer(buf, count, ppos, &ipath_stats, | |
106 | sizeof ipath_stats); | |
107 | } | |
108 | ||
109 | static struct file_operations atomic_stats_ops = { | |
110 | .read = atomic_stats_read, | |
111 | }; | |
112 | ||
113 | #define NUM_COUNTERS sizeof(struct infinipath_counters) / sizeof(u64) | |
114 | ||
115 | static ssize_t atomic_counters_read(struct file *file, char __user *buf, | |
116 | size_t count, loff_t *ppos) | |
117 | { | |
118 | u64 counters[NUM_COUNTERS]; | |
119 | u16 i; | |
120 | struct ipath_devdata *dd; | |
121 | ||
122 | dd = file->f_dentry->d_inode->u.generic_ip; | |
123 | ||
124 | for (i = 0; i < NUM_COUNTERS; i++) | |
125 | counters[i] = ipath_snap_cntr(dd, i); | |
126 | ||
127 | return simple_read_from_buffer(buf, count, ppos, counters, | |
128 | sizeof counters); | |
129 | } | |
130 | ||
131 | static struct file_operations atomic_counters_ops = { | |
132 | .read = atomic_counters_read, | |
133 | }; | |
134 | ||
135 | static ssize_t atomic_node_info_read(struct file *file, char __user *buf, | |
136 | size_t count, loff_t *ppos) | |
137 | { | |
138 | u32 nodeinfo[10]; | |
139 | struct ipath_devdata *dd; | |
140 | u64 guid; | |
141 | ||
142 | dd = file->f_dentry->d_inode->u.generic_ip; | |
143 | ||
144 | guid = be64_to_cpu(dd->ipath_guid); | |
145 | ||
146 | nodeinfo[0] = /* BaseVersion is SMA */ | |
147 | /* ClassVersion is SMA */ | |
148 | (1 << 8) /* NodeType */ | |
149 | | (1 << 0); /* NumPorts */ | |
150 | nodeinfo[1] = (u32) (guid >> 32); | |
151 | nodeinfo[2] = (u32) (guid & 0xffffffff); | |
152 | /* PortGUID == SystemImageGUID for us */ | |
153 | nodeinfo[3] = nodeinfo[1]; | |
154 | /* PortGUID == SystemImageGUID for us */ | |
155 | nodeinfo[4] = nodeinfo[2]; | |
156 | /* PortGUID == NodeGUID for us */ | |
157 | nodeinfo[5] = nodeinfo[3]; | |
158 | /* PortGUID == NodeGUID for us */ | |
159 | nodeinfo[6] = nodeinfo[4]; | |
160 | nodeinfo[7] = (4 << 16) /* we support 4 pkeys */ | |
161 | | (dd->ipath_deviceid << 0); | |
162 | /* our chip version as 16 bits major, 16 bits minor */ | |
163 | nodeinfo[8] = dd->ipath_minrev | (dd->ipath_majrev << 16); | |
164 | nodeinfo[9] = (dd->ipath_unit << 24) | (dd->ipath_vendorid << 0); | |
165 | ||
166 | return simple_read_from_buffer(buf, count, ppos, nodeinfo, | |
167 | sizeof nodeinfo); | |
168 | } | |
169 | ||
170 | static struct file_operations atomic_node_info_ops = { | |
171 | .read = atomic_node_info_read, | |
172 | }; | |
173 | ||
174 | static ssize_t atomic_port_info_read(struct file *file, char __user *buf, | |
175 | size_t count, loff_t *ppos) | |
176 | { | |
177 | u32 portinfo[13]; | |
178 | u32 tmp, tmp2; | |
179 | struct ipath_devdata *dd; | |
180 | ||
181 | dd = file->f_dentry->d_inode->u.generic_ip; | |
182 | ||
183 | /* so we only initialize non-zero fields. */ | |
184 | memset(portinfo, 0, sizeof portinfo); | |
185 | ||
186 | /* | |
187 | * Notimpl yet M_Key (64) | |
188 | * Notimpl yet GID (64) | |
189 | */ | |
190 | ||
191 | portinfo[4] = (dd->ipath_lid << 16); | |
192 | ||
193 | /* | |
194 | * Notimpl yet SMLID (should we store this in the driver, in case | |
195 | * SMA dies?) CapabilityMask is 0, we don't support any of these | |
196 | * DiagCode is 0; we don't store any diag info for now Notimpl yet | |
197 | * M_KeyLeasePeriod (we don't support M_Key) | |
198 | */ | |
199 | ||
200 | /* LocalPortNum is whichever port number they ask for */ | |
201 | portinfo[7] = (dd->ipath_unit << 24) | |
202 | /* LinkWidthEnabled */ | |
203 | | (2 << 16) | |
204 | /* LinkWidthSupported (really 2, but not IB valid) */ | |
205 | | (3 << 8) | |
206 | /* LinkWidthActive */ | |
207 | | (2 << 0); | |
208 | tmp = dd->ipath_lastibcstat & IPATH_IBSTATE_MASK; | |
209 | tmp2 = 5; | |
210 | if (tmp == IPATH_IBSTATE_INIT) | |
211 | tmp = 2; | |
212 | else if (tmp == IPATH_IBSTATE_ARM) | |
213 | tmp = 3; | |
214 | else if (tmp == IPATH_IBSTATE_ACTIVE) | |
215 | tmp = 4; | |
216 | else { | |
217 | tmp = 0; /* down */ | |
218 | tmp2 = tmp & 0xf; | |
219 | } | |
220 | ||
221 | portinfo[8] = (1 << 28) /* LinkSpeedSupported */ | |
222 | | (tmp << 24) /* PortState */ | |
223 | | (tmp2 << 20) /* PortPhysicalState */ | |
224 | | (2 << 16) | |
225 | ||
226 | /* LinkDownDefaultState */ | |
227 | /* M_KeyProtectBits == 0 */ | |
228 | /* NotImpl yet LMC == 0 (we can support all values) */ | |
229 | | (1 << 4) /* LinkSpeedActive */ | |
230 | | (1 << 0); /* LinkSpeedEnabled */ | |
231 | switch (dd->ipath_ibmtu) { | |
232 | case 4096: | |
233 | tmp = 5; | |
234 | break; | |
235 | case 2048: | |
236 | tmp = 4; | |
237 | break; | |
238 | case 1024: | |
239 | tmp = 3; | |
240 | break; | |
241 | case 512: | |
242 | tmp = 2; | |
243 | break; | |
244 | case 256: | |
245 | tmp = 1; | |
246 | break; | |
247 | default: /* oops, something is wrong */ | |
248 | ipath_dbg("Problem, ipath_ibmtu 0x%x not a valid IB MTU, " | |
249 | "treat as 2048\n", dd->ipath_ibmtu); | |
250 | tmp = 4; | |
251 | break; | |
252 | } | |
253 | portinfo[9] = (tmp << 28) | |
254 | /* NeighborMTU */ | |
255 | /* Notimpl MasterSMSL */ | |
256 | | (1 << 20) | |
257 | ||
258 | /* VLCap */ | |
259 | /* Notimpl InitType (actually, an SMA decision) */ | |
260 | /* VLHighLimit is 0 (only one VL) */ | |
261 | ; /* VLArbitrationHighCap is 0 (only one VL) */ | |
262 | portinfo[10] = /* VLArbitrationLowCap is 0 (only one VL) */ | |
263 | /* InitTypeReply is SMA decision */ | |
264 | (5 << 16) /* MTUCap 4096 */ | |
265 | | (7 << 13) /* VLStallCount */ | |
266 | | (0x1f << 8) /* HOQLife */ | |
267 | | (1 << 4) | |
268 | ||
269 | /* OperationalVLs 0 */ | |
270 | /* PartitionEnforcementInbound */ | |
271 | /* PartitionEnforcementOutbound not enforced */ | |
272 | /* FilterRawinbound not enforced */ | |
273 | ; /* FilterRawOutbound not enforced */ | |
274 | /* M_KeyViolations are not counted by hardware, SMA can count */ | |
275 | tmp = ipath_read_creg32(dd, dd->ipath_cregs->cr_errpkey); | |
276 | /* P_KeyViolations are counted by hardware. */ | |
277 | portinfo[11] = ((tmp & 0xffff) << 0); | |
278 | portinfo[12] = | |
279 | /* Q_KeyViolations are not counted by hardware */ | |
280 | (1 << 8) | |
281 | ||
282 | /* GUIDCap */ | |
283 | /* SubnetTimeOut handled by SMA */ | |
284 | /* RespTimeValue handled by SMA */ | |
285 | ; | |
286 | /* LocalPhyErrors are programmed to max */ | |
287 | portinfo[12] |= (0xf << 20) | |
288 | | (0xf << 16) /* OverRunErrors are programmed to max */ | |
289 | ; | |
290 | ||
291 | return simple_read_from_buffer(buf, count, ppos, portinfo, | |
292 | sizeof portinfo); | |
293 | } | |
294 | ||
295 | static struct file_operations atomic_port_info_ops = { | |
296 | .read = atomic_port_info_read, | |
297 | }; | |
298 | ||
299 | static ssize_t flash_read(struct file *file, char __user *buf, | |
300 | size_t count, loff_t *ppos) | |
301 | { | |
302 | struct ipath_devdata *dd; | |
303 | ssize_t ret; | |
304 | loff_t pos; | |
305 | char *tmp; | |
306 | ||
307 | pos = *ppos; | |
308 | ||
309 | if ( pos < 0) { | |
310 | ret = -EINVAL; | |
311 | goto bail; | |
312 | } | |
313 | ||
314 | if (pos >= sizeof(struct ipath_flash)) { | |
315 | ret = 0; | |
316 | goto bail; | |
317 | } | |
318 | ||
319 | if (count > sizeof(struct ipath_flash) - pos) | |
320 | count = sizeof(struct ipath_flash) - pos; | |
321 | ||
322 | tmp = kmalloc(count, GFP_KERNEL); | |
323 | if (!tmp) { | |
324 | ret = -ENOMEM; | |
325 | goto bail; | |
326 | } | |
327 | ||
328 | dd = file->f_dentry->d_inode->u.generic_ip; | |
329 | if (ipath_eeprom_read(dd, pos, tmp, count)) { | |
330 | ipath_dev_err(dd, "failed to read from flash\n"); | |
331 | ret = -ENXIO; | |
332 | goto bail_tmp; | |
333 | } | |
334 | ||
335 | if (copy_to_user(buf, tmp, count)) { | |
336 | ret = -EFAULT; | |
337 | goto bail_tmp; | |
338 | } | |
339 | ||
340 | *ppos = pos + count; | |
341 | ret = count; | |
342 | ||
343 | bail_tmp: | |
344 | kfree(tmp); | |
345 | ||
346 | bail: | |
347 | return ret; | |
348 | } | |
349 | ||
350 | static ssize_t flash_write(struct file *file, const char __user *buf, | |
351 | size_t count, loff_t *ppos) | |
352 | { | |
353 | struct ipath_devdata *dd; | |
354 | ssize_t ret; | |
355 | loff_t pos; | |
356 | char *tmp; | |
357 | ||
358 | pos = *ppos; | |
359 | ||
360 | if ( pos < 0) { | |
361 | ret = -EINVAL; | |
362 | goto bail; | |
363 | } | |
364 | ||
365 | if (pos >= sizeof(struct ipath_flash)) { | |
366 | ret = 0; | |
367 | goto bail; | |
368 | } | |
369 | ||
370 | if (count > sizeof(struct ipath_flash) - pos) | |
371 | count = sizeof(struct ipath_flash) - pos; | |
372 | ||
373 | tmp = kmalloc(count, GFP_KERNEL); | |
374 | if (!tmp) { | |
375 | ret = -ENOMEM; | |
376 | goto bail; | |
377 | } | |
378 | ||
379 | if (copy_from_user(tmp, buf, count)) { | |
380 | ret = -EFAULT; | |
381 | goto bail_tmp; | |
382 | } | |
383 | ||
384 | dd = file->f_dentry->d_inode->u.generic_ip; | |
385 | if (ipath_eeprom_write(dd, pos, tmp, count)) { | |
386 | ret = -ENXIO; | |
387 | ipath_dev_err(dd, "failed to write to flash\n"); | |
388 | goto bail_tmp; | |
389 | } | |
390 | ||
391 | *ppos = pos + count; | |
392 | ret = count; | |
393 | ||
394 | bail_tmp: | |
395 | kfree(tmp); | |
396 | ||
397 | bail: | |
398 | return ret; | |
399 | } | |
400 | ||
401 | static struct file_operations flash_ops = { | |
402 | .read = flash_read, | |
403 | .write = flash_write, | |
404 | }; | |
405 | ||
406 | static int create_device_files(struct super_block *sb, | |
407 | struct ipath_devdata *dd) | |
408 | { | |
409 | struct dentry *dir, *tmp; | |
410 | char unit[10]; | |
411 | int ret; | |
412 | ||
413 | snprintf(unit, sizeof unit, "%02d", dd->ipath_unit); | |
414 | ret = create_file(unit, S_IFDIR|S_IRUGO|S_IXUGO, sb->s_root, &dir, | |
415 | (struct file_operations *) &simple_dir_operations, | |
416 | dd); | |
417 | if (ret) { | |
418 | printk(KERN_ERR "create_file(%s) failed: %d\n", unit, ret); | |
419 | goto bail; | |
420 | } | |
421 | ||
422 | ret = create_file("atomic_counters", S_IFREG|S_IRUGO, dir, &tmp, | |
423 | &atomic_counters_ops, dd); | |
424 | if (ret) { | |
425 | printk(KERN_ERR "create_file(%s/atomic_counters) " | |
426 | "failed: %d\n", unit, ret); | |
427 | goto bail; | |
428 | } | |
429 | ||
430 | ret = create_file("node_info", S_IFREG|S_IRUGO, dir, &tmp, | |
431 | &atomic_node_info_ops, dd); | |
432 | if (ret) { | |
433 | printk(KERN_ERR "create_file(%s/node_info) " | |
434 | "failed: %d\n", unit, ret); | |
435 | goto bail; | |
436 | } | |
437 | ||
438 | ret = create_file("port_info", S_IFREG|S_IRUGO, dir, &tmp, | |
439 | &atomic_port_info_ops, dd); | |
440 | if (ret) { | |
441 | printk(KERN_ERR "create_file(%s/port_info) " | |
442 | "failed: %d\n", unit, ret); | |
443 | goto bail; | |
444 | } | |
445 | ||
446 | ret = create_file("flash", S_IFREG|S_IWUSR|S_IRUGO, dir, &tmp, | |
447 | &flash_ops, dd); | |
448 | if (ret) { | |
449 | printk(KERN_ERR "create_file(%s/flash) " | |
450 | "failed: %d\n", unit, ret); | |
451 | goto bail; | |
452 | } | |
453 | ||
454 | bail: | |
455 | return ret; | |
456 | } | |
457 | ||
458 | static void remove_file(struct dentry *parent, char *name) | |
459 | { | |
460 | struct dentry *tmp; | |
461 | ||
462 | tmp = lookup_one_len(name, parent, strlen(name)); | |
463 | ||
464 | spin_lock(&dcache_lock); | |
465 | spin_lock(&tmp->d_lock); | |
466 | if (!(d_unhashed(tmp) && tmp->d_inode)) { | |
467 | dget_locked(tmp); | |
468 | __d_drop(tmp); | |
469 | spin_unlock(&tmp->d_lock); | |
470 | spin_unlock(&dcache_lock); | |
471 | simple_unlink(parent->d_inode, tmp); | |
472 | } else { | |
473 | spin_unlock(&tmp->d_lock); | |
474 | spin_unlock(&dcache_lock); | |
475 | } | |
476 | } | |
477 | ||
478 | static int remove_device_files(struct super_block *sb, | |
479 | struct ipath_devdata *dd) | |
480 | { | |
481 | struct dentry *dir, *root; | |
482 | char unit[10]; | |
483 | int ret; | |
484 | ||
485 | root = dget(sb->s_root); | |
486 | mutex_lock(&root->d_inode->i_mutex); | |
487 | snprintf(unit, sizeof unit, "%02d", dd->ipath_unit); | |
488 | dir = lookup_one_len(unit, root, strlen(unit)); | |
489 | ||
490 | if (IS_ERR(dir)) { | |
491 | ret = PTR_ERR(dir); | |
492 | printk(KERN_ERR "Lookup of %s failed\n", unit); | |
493 | goto bail; | |
494 | } | |
495 | ||
496 | remove_file(dir, "flash"); | |
497 | remove_file(dir, "port_info"); | |
498 | remove_file(dir, "node_info"); | |
499 | remove_file(dir, "atomic_counters"); | |
500 | d_delete(dir); | |
501 | ret = simple_rmdir(root->d_inode, dir); | |
502 | ||
503 | bail: | |
504 | mutex_unlock(&root->d_inode->i_mutex); | |
505 | dput(root); | |
506 | return ret; | |
507 | } | |
508 | ||
509 | static int ipathfs_fill_super(struct super_block *sb, void *data, | |
510 | int silent) | |
511 | { | |
512 | struct ipath_devdata *dd, *tmp; | |
513 | unsigned long flags; | |
514 | int ret; | |
515 | ||
516 | static struct tree_descr files[] = { | |
517 | [1] = {"atomic_stats", &atomic_stats_ops, S_IRUGO}, | |
518 | {""}, | |
519 | }; | |
520 | ||
521 | ret = simple_fill_super(sb, IPATHFS_MAGIC, files); | |
522 | if (ret) { | |
523 | printk(KERN_ERR "simple_fill_super failed: %d\n", ret); | |
524 | goto bail; | |
525 | } | |
526 | ||
527 | spin_lock_irqsave(&ipath_devs_lock, flags); | |
528 | ||
529 | list_for_each_entry_safe(dd, tmp, &ipath_dev_list, ipath_list) { | |
530 | spin_unlock_irqrestore(&ipath_devs_lock, flags); | |
531 | ret = create_device_files(sb, dd); | |
532 | if (ret) { | |
533 | deactivate_super(sb); | |
534 | goto bail; | |
535 | } | |
536 | spin_lock_irqsave(&ipath_devs_lock, flags); | |
537 | } | |
538 | ||
539 | spin_unlock_irqrestore(&ipath_devs_lock, flags); | |
540 | ||
541 | bail: | |
542 | return ret; | |
543 | } | |
544 | ||
454e2398 DH |
545 | static int ipathfs_get_sb(struct file_system_type *fs_type, int flags, |
546 | const char *dev_name, void *data, struct vfsmount *mnt) | |
3e9b4a5e | 547 | { |
454e2398 DH |
548 | int ret = get_sb_single(fs_type, flags, data, |
549 | ipathfs_fill_super, mnt); | |
550 | if (ret >= 0) | |
551 | ipath_super = mnt->mnt_sb; | |
552 | return ret; | |
3e9b4a5e BS |
553 | } |
554 | ||
555 | static void ipathfs_kill_super(struct super_block *s) | |
556 | { | |
557 | kill_litter_super(s); | |
558 | ipath_super = NULL; | |
559 | } | |
560 | ||
561 | int ipathfs_add_device(struct ipath_devdata *dd) | |
562 | { | |
563 | int ret; | |
564 | ||
565 | if (ipath_super == NULL) { | |
566 | ret = 0; | |
567 | goto bail; | |
568 | } | |
569 | ||
570 | ret = create_device_files(ipath_super, dd); | |
571 | ||
572 | bail: | |
573 | return ret; | |
574 | } | |
575 | ||
576 | int ipathfs_remove_device(struct ipath_devdata *dd) | |
577 | { | |
578 | int ret; | |
579 | ||
580 | if (ipath_super == NULL) { | |
581 | ret = 0; | |
582 | goto bail; | |
583 | } | |
584 | ||
585 | ret = remove_device_files(ipath_super, dd); | |
586 | ||
587 | bail: | |
588 | return ret; | |
589 | } | |
590 | ||
591 | static struct file_system_type ipathfs_fs_type = { | |
592 | .owner = THIS_MODULE, | |
593 | .name = "ipathfs", | |
594 | .get_sb = ipathfs_get_sb, | |
595 | .kill_sb = ipathfs_kill_super, | |
596 | }; | |
597 | ||
598 | int __init ipath_init_ipathfs(void) | |
599 | { | |
600 | return register_filesystem(&ipathfs_fs_type); | |
601 | } | |
602 | ||
603 | void __exit ipath_exit_ipathfs(void) | |
604 | { | |
605 | unregister_filesystem(&ipathfs_fs_type); | |
606 | } |