blob: 23419dc3027b69659aab64eeb0a6aced7504810e [file] [log] [blame]
David Teiglandb3b94fa2006-01-16 16:50:04 +00001/*
2 * Copyright (C) Sistina Software, Inc. 1997-2003 All rights reserved.
Steven Whitehouse3a8a9a12006-05-18 15:09:15 -04003 * Copyright (C) 2004-2006 Red Hat, Inc. All rights reserved.
David Teiglandb3b94fa2006-01-16 16:50:04 +00004 *
5 * This copyrighted material is made available to anyone wishing to use,
6 * modify, copy, or redistribute it subject to the terms and conditions
Steven Whitehousee9fc2aa2006-09-01 11:05:15 -04007 * of the GNU General Public License version 2.
David Teiglandb3b94fa2006-01-16 16:50:04 +00008 */
9
10#include <linux/sched.h>
11#include <linux/slab.h>
12#include <linux/spinlock.h>
13#include <linux/completion.h>
14#include <linux/buffer_head.h>
15#include <linux/module.h>
16#include <linux/kobject.h>
David Teiglandb3b94fa2006-01-16 16:50:04 +000017#include <asm/uaccess.h>
Steven Whitehousef057f6c2009-01-12 10:43:39 +000018#include <linux/gfs2_ondisk.h>
David Teiglandb3b94fa2006-01-16 16:50:04 +000019
20#include "gfs2.h"
Steven Whitehouse5c676f62006-02-27 17:23:27 -050021#include "incore.h"
David Teiglandb3b94fa2006-01-16 16:50:04 +000022#include "sys.h"
23#include "super.h"
24#include "glock.h"
25#include "quota.h"
Steven Whitehouse5c676f62006-02-27 17:23:27 -050026#include "util.h"
Steven Whitehouse64d576b2009-02-12 13:31:58 +000027#include "glops.h"
David Teiglandb3b94fa2006-01-16 16:50:04 +000028
Steven Whitehouse48c2b612009-05-13 14:49:48 +010029struct gfs2_attr {
30 struct attribute attr;
31 ssize_t (*show)(struct gfs2_sbd *, char *);
32 ssize_t (*store)(struct gfs2_sbd *, const char *, size_t);
33};
34
35static ssize_t gfs2_attr_show(struct kobject *kobj, struct attribute *attr,
36 char *buf)
37{
38 struct gfs2_sbd *sdp = container_of(kobj, struct gfs2_sbd, sd_kobj);
39 struct gfs2_attr *a = container_of(attr, struct gfs2_attr, attr);
40 return a->show ? a->show(sdp, buf) : 0;
41}
42
43static ssize_t gfs2_attr_store(struct kobject *kobj, struct attribute *attr,
44 const char *buf, size_t len)
45{
46 struct gfs2_sbd *sdp = container_of(kobj, struct gfs2_sbd, sd_kobj);
47 struct gfs2_attr *a = container_of(attr, struct gfs2_attr, attr);
48 return a->store ? a->store(sdp, buf, len) : len;
49}
50
51static struct sysfs_ops gfs2_attr_ops = {
52 .show = gfs2_attr_show,
53 .store = gfs2_attr_store,
54};
55
56
57static struct kset *gfs2_kset;
58
David Teiglandb3b94fa2006-01-16 16:50:04 +000059static ssize_t id_show(struct gfs2_sbd *sdp, char *buf)
60{
Bob Petersonc7227e42007-11-02 09:37:15 -050061 return snprintf(buf, PAGE_SIZE, "%u:%u\n",
62 MAJOR(sdp->sd_vfs->s_dev), MINOR(sdp->sd_vfs->s_dev));
David Teiglandb3b94fa2006-01-16 16:50:04 +000063}
64
65static ssize_t fsname_show(struct gfs2_sbd *sdp, char *buf)
66{
David Teigland3204a6c2006-09-06 16:57:06 -050067 return snprintf(buf, PAGE_SIZE, "%s\n", sdp->sd_fsname);
David Teiglandb3b94fa2006-01-16 16:50:04 +000068}
69
Steven Whitehouse02e3cc72009-02-10 13:48:30 +000070static int gfs2_uuid_valid(const u8 *uuid)
71{
72 int i;
73
74 for (i = 0; i < 16; i++) {
75 if (uuid[i])
76 return 1;
77 }
78 return 0;
79}
80
81static ssize_t uuid_show(struct gfs2_sbd *sdp, char *buf)
82{
83 const u8 *uuid = sdp->sd_sb.sb_uuid;
84 buf[0] = '\0';
85 if (!gfs2_uuid_valid(uuid))
86 return 0;
87 return snprintf(buf, PAGE_SIZE, "%02X%02X%02X%02X-%02X%02X-"
88 "%02X%02X-%02X%02X-%02X%02X%02X%02X%02X%02X\n",
89 uuid[0], uuid[1], uuid[2], uuid[3], uuid[4], uuid[5],
90 uuid[6], uuid[7], uuid[8], uuid[9], uuid[10], uuid[11],
91 uuid[12], uuid[13], uuid[14], uuid[15]);
92}
93
David Teiglandb3b94fa2006-01-16 16:50:04 +000094static ssize_t freeze_show(struct gfs2_sbd *sdp, char *buf)
95{
96 unsigned int count;
97
Steven Whitehousef55ab262006-02-21 12:51:39 +000098 mutex_lock(&sdp->sd_freeze_lock);
David Teiglandb3b94fa2006-01-16 16:50:04 +000099 count = sdp->sd_freeze_count;
Steven Whitehousef55ab262006-02-21 12:51:39 +0000100 mutex_unlock(&sdp->sd_freeze_lock);
David Teiglandb3b94fa2006-01-16 16:50:04 +0000101
David Teigland3204a6c2006-09-06 16:57:06 -0500102 return snprintf(buf, PAGE_SIZE, "%u\n", count);
David Teiglandb3b94fa2006-01-16 16:50:04 +0000103}
104
105static ssize_t freeze_store(struct gfs2_sbd *sdp, const char *buf, size_t len)
106{
107 ssize_t ret = len;
108 int error = 0;
109 int n = simple_strtol(buf, NULL, 0);
110
111 if (!capable(CAP_SYS_ADMIN))
112 return -EACCES;
113
114 switch (n) {
115 case 0:
116 gfs2_unfreeze_fs(sdp);
117 break;
118 case 1:
119 error = gfs2_freeze_fs(sdp);
120 break;
121 default:
122 ret = -EINVAL;
123 }
124
125 if (error)
126 fs_warn(sdp, "freeze %d error %d", n, error);
127
128 return ret;
129}
130
131static ssize_t withdraw_show(struct gfs2_sbd *sdp, char *buf)
132{
133 unsigned int b = test_bit(SDF_SHUTDOWN, &sdp->sd_flags);
David Teigland3204a6c2006-09-06 16:57:06 -0500134 return snprintf(buf, PAGE_SIZE, "%u\n", b);
David Teiglandb3b94fa2006-01-16 16:50:04 +0000135}
136
137static ssize_t withdraw_store(struct gfs2_sbd *sdp, const char *buf, size_t len)
138{
139 if (!capable(CAP_SYS_ADMIN))
140 return -EACCES;
141
142 if (simple_strtol(buf, NULL, 0) != 1)
143 return -EINVAL;
144
145 gfs2_lm_withdraw(sdp,
146 "GFS2: fsid=%s: withdrawing from cluster at user's request\n",
147 sdp->sd_fsname);
148 return len;
149}
150
151static ssize_t statfs_sync_store(struct gfs2_sbd *sdp, const char *buf,
152 size_t len)
153{
154 if (!capable(CAP_SYS_ADMIN))
155 return -EACCES;
156
157 if (simple_strtol(buf, NULL, 0) != 1)
158 return -EINVAL;
159
160 gfs2_statfs_sync(sdp);
161 return len;
162}
163
David Teiglandb3b94fa2006-01-16 16:50:04 +0000164static ssize_t quota_sync_store(struct gfs2_sbd *sdp, const char *buf,
165 size_t len)
166{
167 if (!capable(CAP_SYS_ADMIN))
168 return -EACCES;
169
170 if (simple_strtol(buf, NULL, 0) != 1)
171 return -EINVAL;
172
173 gfs2_quota_sync(sdp);
174 return len;
175}
176
177static ssize_t quota_refresh_user_store(struct gfs2_sbd *sdp, const char *buf,
178 size_t len)
179{
Steven Whitehousecd915492006-09-04 12:49:07 -0400180 u32 id;
David Teiglandb3b94fa2006-01-16 16:50:04 +0000181
182 if (!capable(CAP_SYS_ADMIN))
183 return -EACCES;
184
185 id = simple_strtoul(buf, NULL, 0);
186
187 gfs2_quota_refresh(sdp, 1, id);
188 return len;
189}
190
191static ssize_t quota_refresh_group_store(struct gfs2_sbd *sdp, const char *buf,
192 size_t len)
193{
Steven Whitehousecd915492006-09-04 12:49:07 -0400194 u32 id;
David Teiglandb3b94fa2006-01-16 16:50:04 +0000195
196 if (!capable(CAP_SYS_ADMIN))
197 return -EACCES;
198
199 id = simple_strtoul(buf, NULL, 0);
200
201 gfs2_quota_refresh(sdp, 0, id);
202 return len;
203}
204
Steven Whitehouse64d576b2009-02-12 13:31:58 +0000205static ssize_t demote_rq_store(struct gfs2_sbd *sdp, const char *buf, size_t len)
206{
207 struct gfs2_glock *gl;
208 const struct gfs2_glock_operations *glops;
209 unsigned int glmode;
210 unsigned int gltype;
211 unsigned long long glnum;
212 char mode[16];
213 int rv;
214
215 if (!capable(CAP_SYS_ADMIN))
216 return -EACCES;
217
218 rv = sscanf(buf, "%u:%llu %15s", &gltype, &glnum,
219 mode);
220 if (rv != 3)
221 return -EINVAL;
222
223 if (strcmp(mode, "EX") == 0)
224 glmode = LM_ST_UNLOCKED;
225 else if ((strcmp(mode, "CW") == 0) || (strcmp(mode, "DF") == 0))
226 glmode = LM_ST_DEFERRED;
227 else if ((strcmp(mode, "PR") == 0) || (strcmp(mode, "SH") == 0))
228 glmode = LM_ST_SHARED;
229 else
230 return -EINVAL;
231
232 if (gltype > LM_TYPE_JOURNAL)
233 return -EINVAL;
234 glops = gfs2_glops_list[gltype];
235 if (glops == NULL)
236 return -EINVAL;
237 rv = gfs2_glock_get(sdp, glnum, glops, 0, &gl);
238 if (rv)
239 return rv;
240 gfs2_glock_cb(gl, glmode);
241 gfs2_glock_put(gl);
242 return len;
243}
244
David Teiglandb3b94fa2006-01-16 16:50:04 +0000245
246#define GFS2_ATTR(name, mode, show, store) \
247static struct gfs2_attr gfs2_attr_##name = __ATTR(name, mode, show, store)
248
249GFS2_ATTR(id, 0444, id_show, NULL);
250GFS2_ATTR(fsname, 0444, fsname_show, NULL);
Steven Whitehouse02e3cc72009-02-10 13:48:30 +0000251GFS2_ATTR(uuid, 0444, uuid_show, NULL);
David Teiglandb3b94fa2006-01-16 16:50:04 +0000252GFS2_ATTR(freeze, 0644, freeze_show, freeze_store);
David Teiglandb3b94fa2006-01-16 16:50:04 +0000253GFS2_ATTR(withdraw, 0644, withdraw_show, withdraw_store);
254GFS2_ATTR(statfs_sync, 0200, NULL, statfs_sync_store);
255GFS2_ATTR(quota_sync, 0200, NULL, quota_sync_store);
256GFS2_ATTR(quota_refresh_user, 0200, NULL, quota_refresh_user_store);
257GFS2_ATTR(quota_refresh_group, 0200, NULL, quota_refresh_group_store);
Steven Whitehouse64d576b2009-02-12 13:31:58 +0000258GFS2_ATTR(demote_rq, 0200, NULL, demote_rq_store);
David Teiglandb3b94fa2006-01-16 16:50:04 +0000259
260static struct attribute *gfs2_attrs[] = {
261 &gfs2_attr_id.attr,
262 &gfs2_attr_fsname.attr,
Steven Whitehouse02e3cc72009-02-10 13:48:30 +0000263 &gfs2_attr_uuid.attr,
David Teiglandb3b94fa2006-01-16 16:50:04 +0000264 &gfs2_attr_freeze.attr,
David Teiglandb3b94fa2006-01-16 16:50:04 +0000265 &gfs2_attr_withdraw.attr,
266 &gfs2_attr_statfs_sync.attr,
267 &gfs2_attr_quota_sync.attr,
268 &gfs2_attr_quota_refresh_user.attr,
269 &gfs2_attr_quota_refresh_group.attr,
Steven Whitehouse64d576b2009-02-12 13:31:58 +0000270 &gfs2_attr_demote_rq.attr,
David Teiglandb3b94fa2006-01-16 16:50:04 +0000271 NULL,
272};
273
David Teiglandb3b94fa2006-01-16 16:50:04 +0000274static struct kobj_type gfs2_ktype = {
275 .default_attrs = gfs2_attrs,
276 .sysfs_ops = &gfs2_attr_ops,
277};
278
Steven Whitehousef057f6c2009-01-12 10:43:39 +0000279
280/*
281 * lock_module. Originally from lock_dlm
282 */
283
284static ssize_t proto_name_show(struct gfs2_sbd *sdp, char *buf)
285{
286 const struct lm_lockops *ops = sdp->sd_lockstruct.ls_ops;
287 return sprintf(buf, "%s\n", ops->lm_proto_name);
288}
289
290static ssize_t block_show(struct gfs2_sbd *sdp, char *buf)
291{
292 struct lm_lockstruct *ls = &sdp->sd_lockstruct;
293 ssize_t ret;
294 int val = 0;
295
296 if (test_bit(DFL_BLOCK_LOCKS, &ls->ls_flags))
297 val = 1;
298 ret = sprintf(buf, "%d\n", val);
299 return ret;
300}
301
302static ssize_t block_store(struct gfs2_sbd *sdp, const char *buf, size_t len)
303{
304 struct lm_lockstruct *ls = &sdp->sd_lockstruct;
305 ssize_t ret = len;
306 int val;
307
308 val = simple_strtol(buf, NULL, 0);
309
310 if (val == 1)
311 set_bit(DFL_BLOCK_LOCKS, &ls->ls_flags);
312 else if (val == 0) {
313 clear_bit(DFL_BLOCK_LOCKS, &ls->ls_flags);
314 smp_mb__after_clear_bit();
315 gfs2_glock_thaw(sdp);
316 } else {
317 ret = -EINVAL;
318 }
319 return ret;
320}
321
322static ssize_t lkid_show(struct gfs2_sbd *sdp, char *buf)
323{
324 struct lm_lockstruct *ls = &sdp->sd_lockstruct;
325 return sprintf(buf, "%u\n", ls->ls_id);
326}
327
328static ssize_t lkfirst_show(struct gfs2_sbd *sdp, char *buf)
329{
330 struct lm_lockstruct *ls = &sdp->sd_lockstruct;
331 return sprintf(buf, "%d\n", ls->ls_first);
332}
333
334static ssize_t first_done_show(struct gfs2_sbd *sdp, char *buf)
335{
336 struct lm_lockstruct *ls = &sdp->sd_lockstruct;
337 return sprintf(buf, "%d\n", ls->ls_first_done);
338}
339
Steven Whitehousefe64d512009-05-19 10:01:18 +0100340static ssize_t recover_store(struct gfs2_sbd *sdp, const char *buf, size_t len)
Steven Whitehousef057f6c2009-01-12 10:43:39 +0000341{
Steven Whitehousefe64d512009-05-19 10:01:18 +0100342 unsigned jid;
Steven Whitehousef057f6c2009-01-12 10:43:39 +0000343 struct gfs2_jdesc *jd;
Steven Whitehousefe64d512009-05-19 10:01:18 +0100344 int rv;
Steven Whitehousef057f6c2009-01-12 10:43:39 +0000345
Steven Whitehousefe64d512009-05-19 10:01:18 +0100346 rv = sscanf(buf, "%u", &jid);
347 if (rv != 1)
348 return -EINVAL;
349
350 rv = -ESHUTDOWN;
Steven Whitehousef057f6c2009-01-12 10:43:39 +0000351 spin_lock(&sdp->sd_jindex_spin);
Steven Whitehousefe64d512009-05-19 10:01:18 +0100352 if (test_bit(SDF_NORECOVERY, &sdp->sd_flags))
353 goto out;
354 rv = -EBUSY;
355 if (sdp->sd_jdesc->jd_jid == jid)
356 goto out;
357 rv = -ENOENT;
Steven Whitehousef057f6c2009-01-12 10:43:39 +0000358 list_for_each_entry(jd, &sdp->sd_jindex_list, jd_list) {
359 if (jd->jd_jid != jid)
360 continue;
Steven Whitehousefe64d512009-05-19 10:01:18 +0100361 rv = slow_work_enqueue(&jd->jd_work);
Steven Whitehousef057f6c2009-01-12 10:43:39 +0000362 break;
363 }
Steven Whitehousefe64d512009-05-19 10:01:18 +0100364out:
Steven Whitehousef057f6c2009-01-12 10:43:39 +0000365 spin_unlock(&sdp->sd_jindex_spin);
Steven Whitehousefe64d512009-05-19 10:01:18 +0100366 return rv ? rv : len;
Steven Whitehousef057f6c2009-01-12 10:43:39 +0000367}
368
369static ssize_t recover_done_show(struct gfs2_sbd *sdp, char *buf)
370{
371 struct lm_lockstruct *ls = &sdp->sd_lockstruct;
372 return sprintf(buf, "%d\n", ls->ls_recover_jid_done);
373}
374
375static ssize_t recover_status_show(struct gfs2_sbd *sdp, char *buf)
376{
377 struct lm_lockstruct *ls = &sdp->sd_lockstruct;
378 return sprintf(buf, "%d\n", ls->ls_recover_jid_status);
379}
380
Steven Whitehousee1b28aa2009-05-26 15:41:27 +0100381static ssize_t jid_show(struct gfs2_sbd *sdp, char *buf)
382{
383 return sprintf(buf, "%u\n", sdp->sd_lockstruct.ls_jid);
384}
385
Steven Whitehousef057f6c2009-01-12 10:43:39 +0000386#define GDLM_ATTR(_name,_mode,_show,_store) \
Steven Whitehouse48c2b612009-05-13 14:49:48 +0100387static struct gfs2_attr gdlm_attr_##_name = __ATTR(_name,_mode,_show,_store)
Steven Whitehousef057f6c2009-01-12 10:43:39 +0000388
Steven Whitehousefe64d512009-05-19 10:01:18 +0100389GDLM_ATTR(proto_name, 0444, proto_name_show, NULL);
390GDLM_ATTR(block, 0644, block_show, block_store);
391GDLM_ATTR(withdraw, 0644, withdraw_show, withdraw_store);
392GDLM_ATTR(id, 0444, lkid_show, NULL);
Steven Whitehousee1b28aa2009-05-26 15:41:27 +0100393GDLM_ATTR(jid, 0444, jid_show, NULL);
Steven Whitehousefe64d512009-05-19 10:01:18 +0100394GDLM_ATTR(first, 0444, lkfirst_show, NULL);
395GDLM_ATTR(first_done, 0444, first_done_show, NULL);
396GDLM_ATTR(recover, 0200, NULL, recover_store);
397GDLM_ATTR(recover_done, 0444, recover_done_show, NULL);
398GDLM_ATTR(recover_status, 0444, recover_status_show, NULL);
Steven Whitehousef057f6c2009-01-12 10:43:39 +0000399
400static struct attribute *lock_module_attrs[] = {
401 &gdlm_attr_proto_name.attr,
402 &gdlm_attr_block.attr,
403 &gdlm_attr_withdraw.attr,
404 &gdlm_attr_id.attr,
Steven Whitehousee1b28aa2009-05-26 15:41:27 +0100405 &gdlm_attr_jid.attr,
Steven Whitehousef057f6c2009-01-12 10:43:39 +0000406 &gdlm_attr_first.attr,
407 &gdlm_attr_first_done.attr,
408 &gdlm_attr_recover.attr,
409 &gdlm_attr_recover_done.attr,
410 &gdlm_attr_recover_status.attr,
Steven Whitehouseea67eed2006-09-05 10:53:09 -0400411 NULL,
David Teiglandb3b94fa2006-01-16 16:50:04 +0000412};
413
David Teiglandb3b94fa2006-01-16 16:50:04 +0000414/*
David Teiglandb3b94fa2006-01-16 16:50:04 +0000415 * get and set struct gfs2_tune fields
416 */
417
418static ssize_t quota_scale_show(struct gfs2_sbd *sdp, char *buf)
419{
David Teigland3204a6c2006-09-06 16:57:06 -0500420 return snprintf(buf, PAGE_SIZE, "%u %u\n",
421 sdp->sd_tune.gt_quota_scale_num,
422 sdp->sd_tune.gt_quota_scale_den);
David Teiglandb3b94fa2006-01-16 16:50:04 +0000423}
424
425static ssize_t quota_scale_store(struct gfs2_sbd *sdp, const char *buf,
426 size_t len)
427{
428 struct gfs2_tune *gt = &sdp->sd_tune;
429 unsigned int x, y;
430
431 if (!capable(CAP_SYS_ADMIN))
432 return -EACCES;
433
434 if (sscanf(buf, "%u %u", &x, &y) != 2 || !y)
435 return -EINVAL;
436
437 spin_lock(&gt->gt_spin);
438 gt->gt_quota_scale_num = x;
439 gt->gt_quota_scale_den = y;
440 spin_unlock(&gt->gt_spin);
441 return len;
442}
443
444static ssize_t tune_set(struct gfs2_sbd *sdp, unsigned int *field,
445 int check_zero, const char *buf, size_t len)
446{
447 struct gfs2_tune *gt = &sdp->sd_tune;
448 unsigned int x;
449
450 if (!capable(CAP_SYS_ADMIN))
451 return -EACCES;
452
453 x = simple_strtoul(buf, NULL, 0);
454
455 if (check_zero && !x)
456 return -EINVAL;
457
458 spin_lock(&gt->gt_spin);
459 *field = x;
460 spin_unlock(&gt->gt_spin);
461 return len;
462}
463
David Teiglandb3b94fa2006-01-16 16:50:04 +0000464#define TUNE_ATTR_3(name, show, store) \
Steven Whitehouse48c2b612009-05-13 14:49:48 +0100465static struct gfs2_attr tune_attr_##name = __ATTR(name, 0644, show, store)
David Teiglandb3b94fa2006-01-16 16:50:04 +0000466
467#define TUNE_ATTR_2(name, store) \
468static ssize_t name##_show(struct gfs2_sbd *sdp, char *buf) \
469{ \
David Teigland3204a6c2006-09-06 16:57:06 -0500470 return snprintf(buf, PAGE_SIZE, "%u\n", sdp->sd_tune.gt_##name); \
David Teiglandb3b94fa2006-01-16 16:50:04 +0000471} \
472TUNE_ATTR_3(name, name##_show, store)
473
474#define TUNE_ATTR(name, check_zero) \
475static ssize_t name##_store(struct gfs2_sbd *sdp, const char *buf, size_t len)\
476{ \
477 return tune_set(sdp, &sdp->sd_tune.gt_##name, check_zero, buf, len); \
478} \
479TUNE_ATTR_2(name, name##_store)
480
David Teiglandb3b94fa2006-01-16 16:50:04 +0000481TUNE_ATTR(incore_log_blocks, 0);
482TUNE_ATTR(log_flush_secs, 0);
David Teiglandb3b94fa2006-01-16 16:50:04 +0000483TUNE_ATTR(quota_warn_period, 0);
484TUNE_ATTR(quota_quantum, 0);
David Teiglandb3b94fa2006-01-16 16:50:04 +0000485TUNE_ATTR(max_readahead, 0);
486TUNE_ATTR(complain_secs, 0);
David Teiglandb3b94fa2006-01-16 16:50:04 +0000487TUNE_ATTR(statfs_slow, 0);
488TUNE_ATTR(new_files_jdata, 0);
David Teiglandb3b94fa2006-01-16 16:50:04 +0000489TUNE_ATTR(quota_simul_sync, 1);
David Teiglandb3b94fa2006-01-16 16:50:04 +0000490TUNE_ATTR(stall_secs, 1);
David Teiglandb3b94fa2006-01-16 16:50:04 +0000491TUNE_ATTR(statfs_quantum, 1);
David Teiglandb3b94fa2006-01-16 16:50:04 +0000492TUNE_ATTR_3(quota_scale, quota_scale_show, quota_scale_store);
493
494static struct attribute *tune_attrs[] = {
David Teiglandb3b94fa2006-01-16 16:50:04 +0000495 &tune_attr_incore_log_blocks.attr,
496 &tune_attr_log_flush_secs.attr,
David Teiglandb3b94fa2006-01-16 16:50:04 +0000497 &tune_attr_quota_warn_period.attr,
498 &tune_attr_quota_quantum.attr,
David Teiglandb3b94fa2006-01-16 16:50:04 +0000499 &tune_attr_max_readahead.attr,
500 &tune_attr_complain_secs.attr,
David Teiglandb3b94fa2006-01-16 16:50:04 +0000501 &tune_attr_statfs_slow.attr,
502 &tune_attr_quota_simul_sync.attr,
David Teiglandb3b94fa2006-01-16 16:50:04 +0000503 &tune_attr_stall_secs.attr,
David Teiglandb3b94fa2006-01-16 16:50:04 +0000504 &tune_attr_statfs_quantum.attr,
David Teiglandb3b94fa2006-01-16 16:50:04 +0000505 &tune_attr_quota_scale.attr,
506 &tune_attr_new_files_jdata.attr,
Steven Whitehouseea67eed2006-09-05 10:53:09 -0400507 NULL,
David Teiglandb3b94fa2006-01-16 16:50:04 +0000508};
509
David Teiglandb3b94fa2006-01-16 16:50:04 +0000510static struct attribute_group tune_group = {
511 .name = "tune",
Steven Whitehouseea67eed2006-09-05 10:53:09 -0400512 .attrs = tune_attrs,
David Teiglandb3b94fa2006-01-16 16:50:04 +0000513};
514
Steven Whitehousef057f6c2009-01-12 10:43:39 +0000515static struct attribute_group lock_module_group = {
516 .name = "lock_module",
517 .attrs = lock_module_attrs,
518};
519
David Teiglandb3b94fa2006-01-16 16:50:04 +0000520int gfs2_sys_fs_add(struct gfs2_sbd *sdp)
521{
522 int error;
523
Greg Kroah-Hartman9bec1012007-10-29 20:13:17 +0100524 sdp->sd_kobj.kset = gfs2_kset;
Greg Kroah-Hartman901195e2007-12-17 15:54:39 -0400525 error = kobject_init_and_add(&sdp->sd_kobj, &gfs2_ktype, NULL,
526 "%s", sdp->sd_table_name);
David Teiglandb3b94fa2006-01-16 16:50:04 +0000527 if (error)
528 goto fail;
529
David Teiglandb3b94fa2006-01-16 16:50:04 +0000530 error = sysfs_create_group(&sdp->sd_kobj, &tune_group);
531 if (error)
Steven Whitehousef6eb5342009-05-26 15:50:25 +0100532 goto fail_reg;
David Teiglandb3b94fa2006-01-16 16:50:04 +0000533
Steven Whitehousef057f6c2009-01-12 10:43:39 +0000534 error = sysfs_create_group(&sdp->sd_kobj, &lock_module_group);
535 if (error)
536 goto fail_tune;
537
Greg Kroah-Hartman901195e2007-12-17 15:54:39 -0400538 kobject_uevent(&sdp->sd_kobj, KOBJ_ADD);
David Teiglandb3b94fa2006-01-16 16:50:04 +0000539 return 0;
540
Steven Whitehousef057f6c2009-01-12 10:43:39 +0000541fail_tune:
542 sysfs_remove_group(&sdp->sd_kobj, &tune_group);
Steven Whitehousea91ea692006-09-04 12:04:26 -0400543fail_reg:
Greg Kroah-Hartman197b12d2007-12-20 08:13:05 -0800544 kobject_put(&sdp->sd_kobj);
Steven Whitehousea91ea692006-09-04 12:04:26 -0400545fail:
David Teigland65952fb2006-09-15 13:09:11 -0500546 fs_err(sdp, "error %d adding sysfs files", error);
David Teiglandb3b94fa2006-01-16 16:50:04 +0000547 return error;
548}
549
550void gfs2_sys_fs_del(struct gfs2_sbd *sdp)
551{
552 sysfs_remove_group(&sdp->sd_kobj, &tune_group);
Steven Whitehousef057f6c2009-01-12 10:43:39 +0000553 sysfs_remove_group(&sdp->sd_kobj, &lock_module_group);
Greg Kroah-Hartman197b12d2007-12-20 08:13:05 -0800554 kobject_put(&sdp->sd_kobj);
David Teiglandb3b94fa2006-01-16 16:50:04 +0000555}
556
Steven Whitehouse02e3cc72009-02-10 13:48:30 +0000557
Steven Whitehousefdd10622008-11-26 10:26:38 +0000558static int gfs2_uevent(struct kset *kset, struct kobject *kobj,
559 struct kobj_uevent_env *env)
560{
561 struct gfs2_sbd *sdp = container_of(kobj, struct gfs2_sbd, sd_kobj);
Steven Whitehouse02e3cc72009-02-10 13:48:30 +0000562 const u8 *uuid = sdp->sd_sb.sb_uuid;
563
Steven Whitehousefdd10622008-11-26 10:26:38 +0000564 add_uevent_var(env, "LOCKTABLE=%s", sdp->sd_table_name);
565 add_uevent_var(env, "LOCKPROTO=%s", sdp->sd_proto_name);
Steven Whitehouse02e3cc72009-02-10 13:48:30 +0000566 if (gfs2_uuid_valid(uuid)) {
567 add_uevent_var(env, "UUID=%02X%02X%02X%02X-%02X%02X-%02X%02X-"
568 "%02X%02X-%02X%02X%02X%02X%02X%02X",
569 uuid[0], uuid[1], uuid[2], uuid[3], uuid[4],
570 uuid[5], uuid[6], uuid[7], uuid[8], uuid[9],
571 uuid[10], uuid[11], uuid[12], uuid[13],
572 uuid[14], uuid[15]);
573 }
Steven Whitehousefdd10622008-11-26 10:26:38 +0000574 return 0;
575}
576
577static struct kset_uevent_ops gfs2_uevent_ops = {
578 .uevent = gfs2_uevent,
579};
580
581
David Teiglandb3b94fa2006-01-16 16:50:04 +0000582int gfs2_sys_init(void)
583{
Steven Whitehousefdd10622008-11-26 10:26:38 +0000584 gfs2_kset = kset_create_and_add("gfs2", &gfs2_uevent_ops, fs_kobj);
Greg Kroah-Hartman9bec1012007-10-29 20:13:17 +0100585 if (!gfs2_kset)
586 return -ENOMEM;
587 return 0;
David Teiglandb3b94fa2006-01-16 16:50:04 +0000588}
589
590void gfs2_sys_uninit(void)
591{
Greg Kroah-Hartman9bec1012007-10-29 20:13:17 +0100592 kset_unregister(gfs2_kset);
David Teiglandb3b94fa2006-01-16 16:50:04 +0000593}
594