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Commit | Line | Data |
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b3b94faa DT |
1 | /* |
2 | * Copyright (C) Sistina Software, Inc. 1997-2003 All rights reserved. | |
3a8a9a10 | 3 | * Copyright (C) 2004-2006 Red Hat, Inc. All rights reserved. |
b3b94faa DT |
4 | * |
5 | * This copyrighted material is made available to anyone wishing to use, | |
6 | * modify, copy, or redistribute it subject to the terms and conditions | |
e9fc2aa0 | 7 | * of the GNU General Public License version 2. |
b3b94faa DT |
8 | */ |
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> | |
5c676f6d | 15 | #include <linux/gfs2_ondisk.h> |
7d308590 | 16 | #include <linux/lm_interface.h> |
b3b94faa DT |
17 | |
18 | #include "gfs2.h" | |
5c676f6d | 19 | #include "incore.h" |
b3b94faa DT |
20 | #include "bmap.h" |
21 | #include "glock.h" | |
22 | #include "glops.h" | |
23 | #include "inode.h" | |
24 | #include "log.h" | |
25 | #include "meta_io.h" | |
b3b94faa DT |
26 | #include "recovery.h" |
27 | #include "rgrp.h" | |
5c676f6d | 28 | #include "util.h" |
ddacfaf7 | 29 | #include "trans.h" |
b3b94faa | 30 | |
ddacfaf7 SW |
31 | /** |
32 | * ail_empty_gl - remove all buffers for a given lock from the AIL | |
33 | * @gl: the glock | |
34 | * | |
35 | * None of the buffers should be dirty, locked, or pinned. | |
36 | */ | |
37 | ||
38 | static void gfs2_ail_empty_gl(struct gfs2_glock *gl) | |
39 | { | |
40 | struct gfs2_sbd *sdp = gl->gl_sbd; | |
41 | unsigned int blocks; | |
42 | struct list_head *head = &gl->gl_ail_list; | |
43 | struct gfs2_bufdata *bd; | |
44 | struct buffer_head *bh; | |
45 | u64 blkno; | |
46 | int error; | |
47 | ||
48 | blocks = atomic_read(&gl->gl_ail_count); | |
49 | if (!blocks) | |
50 | return; | |
51 | ||
52 | error = gfs2_trans_begin(sdp, 0, blocks); | |
53 | if (gfs2_assert_withdraw(sdp, !error)) | |
54 | return; | |
55 | ||
56 | gfs2_log_lock(sdp); | |
57 | while (!list_empty(head)) { | |
58 | bd = list_entry(head->next, struct gfs2_bufdata, | |
59 | bd_ail_gl_list); | |
60 | bh = bd->bd_bh; | |
61 | blkno = bh->b_blocknr; | |
62 | gfs2_assert_withdraw(sdp, !buffer_busy(bh)); | |
63 | ||
64 | bd->bd_ail = NULL; | |
65 | list_del(&bd->bd_ail_st_list); | |
66 | list_del(&bd->bd_ail_gl_list); | |
67 | atomic_dec(&gl->gl_ail_count); | |
68 | brelse(bh); | |
69 | gfs2_log_unlock(sdp); | |
70 | ||
71 | gfs2_trans_add_revoke(sdp, blkno); | |
72 | ||
73 | gfs2_log_lock(sdp); | |
74 | } | |
75 | gfs2_assert_withdraw(sdp, !atomic_read(&gl->gl_ail_count)); | |
76 | gfs2_log_unlock(sdp); | |
77 | ||
78 | gfs2_trans_end(sdp); | |
79 | gfs2_log_flush(sdp, NULL); | |
80 | } | |
ba7f7290 SW |
81 | |
82 | /** | |
83 | * gfs2_pte_inval - Sync and invalidate all PTEs associated with a glock | |
84 | * @gl: the glock | |
85 | * | |
86 | */ | |
87 | ||
88 | static void gfs2_pte_inval(struct gfs2_glock *gl) | |
89 | { | |
90 | struct gfs2_inode *ip; | |
91 | struct inode *inode; | |
92 | ||
93 | ip = gl->gl_object; | |
94 | inode = &ip->i_inode; | |
b60623c2 | 95 | if (!ip || !S_ISREG(inode->i_mode)) |
ba7f7290 SW |
96 | return; |
97 | ||
98 | if (!test_bit(GIF_PAGED, &ip->i_flags)) | |
99 | return; | |
100 | ||
101 | unmap_shared_mapping_range(inode->i_mapping, 0, 0); | |
102 | ||
103 | if (test_bit(GIF_SW_PAGED, &ip->i_flags)) | |
104 | set_bit(GLF_DIRTY, &gl->gl_flags); | |
105 | ||
106 | clear_bit(GIF_SW_PAGED, &ip->i_flags); | |
107 | } | |
108 | ||
109 | /** | |
110 | * gfs2_page_inval - Invalidate all pages associated with a glock | |
111 | * @gl: the glock | |
112 | * | |
113 | */ | |
114 | ||
115 | static void gfs2_page_inval(struct gfs2_glock *gl) | |
116 | { | |
117 | struct gfs2_inode *ip; | |
118 | struct inode *inode; | |
119 | ||
120 | ip = gl->gl_object; | |
121 | inode = &ip->i_inode; | |
b60623c2 | 122 | if (!ip || !S_ISREG(inode->i_mode)) |
ba7f7290 SW |
123 | return; |
124 | ||
125 | truncate_inode_pages(inode->i_mapping, 0); | |
126 | gfs2_assert_withdraw(GFS2_SB(&ip->i_inode), !inode->i_mapping->nrpages); | |
127 | clear_bit(GIF_PAGED, &ip->i_flags); | |
128 | } | |
129 | ||
130 | /** | |
7276b3b0 | 131 | * gfs2_page_wait - Wait for writeback of data |
ba7f7290 | 132 | * @gl: the glock |
ba7f7290 SW |
133 | * |
134 | * Syncs data (not metadata) for a regular file. | |
135 | * No-op for all other types. | |
136 | */ | |
137 | ||
7276b3b0 | 138 | static void gfs2_page_wait(struct gfs2_glock *gl) |
ba7f7290 | 139 | { |
7276b3b0 SW |
140 | struct gfs2_inode *ip = gl->gl_object; |
141 | struct inode *inode = &ip->i_inode; | |
142 | struct address_space *mapping = inode->i_mapping; | |
143 | int error; | |
ba7f7290 | 144 | |
b60623c2 | 145 | if (!S_ISREG(inode->i_mode)) |
ba7f7290 SW |
146 | return; |
147 | ||
7276b3b0 | 148 | error = filemap_fdatawait(mapping); |
ba7f7290 SW |
149 | |
150 | /* Put back any errors cleared by filemap_fdatawait() | |
151 | so they can be caught by someone who can pass them | |
152 | up to user space. */ | |
153 | ||
154 | if (error == -ENOSPC) | |
155 | set_bit(AS_ENOSPC, &mapping->flags); | |
156 | else if (error) | |
157 | set_bit(AS_EIO, &mapping->flags); | |
158 | ||
159 | } | |
160 | ||
7276b3b0 SW |
161 | static void gfs2_page_writeback(struct gfs2_glock *gl) |
162 | { | |
163 | struct gfs2_inode *ip = gl->gl_object; | |
164 | struct inode *inode = &ip->i_inode; | |
165 | struct address_space *mapping = inode->i_mapping; | |
166 | ||
b60623c2 | 167 | if (!S_ISREG(inode->i_mode)) |
7276b3b0 SW |
168 | return; |
169 | ||
170 | filemap_fdatawrite(mapping); | |
171 | } | |
172 | ||
b3b94faa DT |
173 | /** |
174 | * meta_go_sync - sync out the metadata for this glock | |
175 | * @gl: the glock | |
176 | * @flags: DIO_* | |
177 | * | |
178 | * Called when demoting or unlocking an EX glock. We must flush | |
179 | * to disk all dirty buffers/pages relating to this glock, and must not | |
180 | * not return to caller to demote/unlock the glock until I/O is complete. | |
181 | */ | |
182 | ||
183 | static void meta_go_sync(struct gfs2_glock *gl, int flags) | |
184 | { | |
185 | if (!(flags & DIO_METADATA)) | |
186 | return; | |
187 | ||
188 | if (test_and_clear_bit(GLF_DIRTY, &gl->gl_flags)) { | |
b09e593d | 189 | gfs2_log_flush(gl->gl_sbd, gl); |
7276b3b0 | 190 | gfs2_meta_sync(gl); |
b3b94faa DT |
191 | if (flags & DIO_RELEASE) |
192 | gfs2_ail_empty_gl(gl); | |
193 | } | |
194 | ||
b3b94faa DT |
195 | } |
196 | ||
197 | /** | |
198 | * meta_go_inval - invalidate the metadata for this glock | |
199 | * @gl: the glock | |
200 | * @flags: | |
201 | * | |
202 | */ | |
203 | ||
204 | static void meta_go_inval(struct gfs2_glock *gl, int flags) | |
205 | { | |
206 | if (!(flags & DIO_METADATA)) | |
207 | return; | |
208 | ||
209 | gfs2_meta_inval(gl); | |
210 | gl->gl_vn++; | |
211 | } | |
212 | ||
b3b94faa DT |
213 | /** |
214 | * inode_go_xmote_th - promote/demote a glock | |
215 | * @gl: the glock | |
216 | * @state: the requested state | |
217 | * @flags: | |
218 | * | |
219 | */ | |
220 | ||
221 | static void inode_go_xmote_th(struct gfs2_glock *gl, unsigned int state, | |
222 | int flags) | |
223 | { | |
224 | if (gl->gl_state != LM_ST_UNLOCKED) | |
225 | gfs2_pte_inval(gl); | |
226 | gfs2_glock_xmote_th(gl, state, flags); | |
227 | } | |
228 | ||
229 | /** | |
230 | * inode_go_xmote_bh - After promoting/demoting a glock | |
231 | * @gl: the glock | |
232 | * | |
233 | */ | |
234 | ||
235 | static void inode_go_xmote_bh(struct gfs2_glock *gl) | |
236 | { | |
237 | struct gfs2_holder *gh = gl->gl_req_gh; | |
238 | struct buffer_head *bh; | |
239 | int error; | |
240 | ||
241 | if (gl->gl_state != LM_ST_UNLOCKED && | |
242 | (!gh || !(gh->gh_flags & GL_SKIP))) { | |
7276b3b0 | 243 | error = gfs2_meta_read(gl, gl->gl_name.ln_number, 0, &bh); |
b3b94faa DT |
244 | if (!error) |
245 | brelse(bh); | |
246 | } | |
247 | } | |
248 | ||
249 | /** | |
250 | * inode_go_drop_th - unlock a glock | |
251 | * @gl: the glock | |
252 | * | |
253 | * Invoked from rq_demote(). | |
254 | * Another node needs the lock in EXCLUSIVE mode, or lock (unused for too long) | |
255 | * is being purged from our node's glock cache; we're dropping lock. | |
256 | */ | |
257 | ||
258 | static void inode_go_drop_th(struct gfs2_glock *gl) | |
259 | { | |
260 | gfs2_pte_inval(gl); | |
261 | gfs2_glock_drop_th(gl); | |
262 | } | |
263 | ||
264 | /** | |
265 | * inode_go_sync - Sync the dirty data and/or metadata for an inode glock | |
266 | * @gl: the glock protecting the inode | |
267 | * @flags: | |
268 | * | |
269 | */ | |
270 | ||
271 | static void inode_go_sync(struct gfs2_glock *gl, int flags) | |
272 | { | |
273 | int meta = (flags & DIO_METADATA); | |
274 | int data = (flags & DIO_DATA); | |
275 | ||
276 | if (test_bit(GLF_DIRTY, &gl->gl_flags)) { | |
277 | if (meta && data) { | |
7276b3b0 | 278 | gfs2_page_writeback(gl); |
b09e593d | 279 | gfs2_log_flush(gl->gl_sbd, gl); |
7276b3b0 SW |
280 | gfs2_meta_sync(gl); |
281 | gfs2_page_wait(gl); | |
b3b94faa DT |
282 | clear_bit(GLF_DIRTY, &gl->gl_flags); |
283 | } else if (meta) { | |
b09e593d | 284 | gfs2_log_flush(gl->gl_sbd, gl); |
7276b3b0 SW |
285 | gfs2_meta_sync(gl); |
286 | } else if (data) { | |
287 | gfs2_page_writeback(gl); | |
288 | gfs2_page_wait(gl); | |
289 | } | |
b3b94faa DT |
290 | if (flags & DIO_RELEASE) |
291 | gfs2_ail_empty_gl(gl); | |
292 | } | |
b3b94faa DT |
293 | } |
294 | ||
295 | /** | |
296 | * inode_go_inval - prepare a inode glock to be released | |
297 | * @gl: the glock | |
298 | * @flags: | |
299 | * | |
300 | */ | |
301 | ||
302 | static void inode_go_inval(struct gfs2_glock *gl, int flags) | |
303 | { | |
304 | int meta = (flags & DIO_METADATA); | |
305 | int data = (flags & DIO_DATA); | |
306 | ||
307 | if (meta) { | |
bfded27b | 308 | struct gfs2_inode *ip = gl->gl_object; |
b3b94faa | 309 | gfs2_meta_inval(gl); |
bfded27b | 310 | set_bit(GIF_INVALID, &ip->i_flags); |
b3b94faa DT |
311 | } |
312 | if (data) | |
313 | gfs2_page_inval(gl); | |
314 | } | |
315 | ||
316 | /** | |
317 | * inode_go_demote_ok - Check to see if it's ok to unlock an inode glock | |
318 | * @gl: the glock | |
319 | * | |
320 | * Returns: 1 if it's ok | |
321 | */ | |
322 | ||
323 | static int inode_go_demote_ok(struct gfs2_glock *gl) | |
324 | { | |
325 | struct gfs2_sbd *sdp = gl->gl_sbd; | |
326 | int demote = 0; | |
327 | ||
5c676f6d | 328 | if (!gl->gl_object && !gl->gl_aspace->i_mapping->nrpages) |
b3b94faa DT |
329 | demote = 1; |
330 | else if (!sdp->sd_args.ar_localcaching && | |
331 | time_after_eq(jiffies, gl->gl_stamp + | |
332 | gfs2_tune_get(sdp, gt_demote_secs) * HZ)) | |
333 | demote = 1; | |
334 | ||
335 | return demote; | |
336 | } | |
337 | ||
338 | /** | |
339 | * inode_go_lock - operation done after an inode lock is locked by a process | |
340 | * @gl: the glock | |
341 | * @flags: | |
342 | * | |
343 | * Returns: errno | |
344 | */ | |
345 | ||
346 | static int inode_go_lock(struct gfs2_holder *gh) | |
347 | { | |
348 | struct gfs2_glock *gl = gh->gh_gl; | |
5c676f6d | 349 | struct gfs2_inode *ip = gl->gl_object; |
b3b94faa DT |
350 | int error = 0; |
351 | ||
352 | if (!ip) | |
353 | return 0; | |
354 | ||
bfded27b | 355 | if (test_bit(GIF_INVALID, &ip->i_flags)) { |
b3b94faa DT |
356 | error = gfs2_inode_refresh(ip); |
357 | if (error) | |
358 | return error; | |
359 | gfs2_inode_attr_in(ip); | |
360 | } | |
361 | ||
362 | if ((ip->i_di.di_flags & GFS2_DIF_TRUNC_IN_PROG) && | |
363 | (gl->gl_state == LM_ST_EXCLUSIVE) && | |
364 | (gh->gh_flags & GL_LOCAL_EXCL)) | |
365 | error = gfs2_truncatei_resume(ip); | |
366 | ||
367 | return error; | |
368 | } | |
369 | ||
370 | /** | |
371 | * inode_go_unlock - operation done before an inode lock is unlocked by a | |
372 | * process | |
373 | * @gl: the glock | |
374 | * @flags: | |
375 | * | |
376 | */ | |
377 | ||
378 | static void inode_go_unlock(struct gfs2_holder *gh) | |
379 | { | |
380 | struct gfs2_glock *gl = gh->gh_gl; | |
5c676f6d | 381 | struct gfs2_inode *ip = gl->gl_object; |
b3b94faa | 382 | |
75d3b817 SW |
383 | if (ip == NULL) |
384 | return; | |
385 | if (test_bit(GLF_DIRTY, &gl->gl_flags)) | |
386 | gfs2_inode_attr_in(ip); | |
387 | gfs2_meta_cache_flush(ip); | |
b3b94faa DT |
388 | } |
389 | ||
390 | /** | |
391 | * inode_greedy - | |
392 | * @gl: the glock | |
393 | * | |
394 | */ | |
395 | ||
396 | static void inode_greedy(struct gfs2_glock *gl) | |
397 | { | |
398 | struct gfs2_sbd *sdp = gl->gl_sbd; | |
5c676f6d | 399 | struct gfs2_inode *ip = gl->gl_object; |
b3b94faa DT |
400 | unsigned int quantum = gfs2_tune_get(sdp, gt_greedy_quantum); |
401 | unsigned int max = gfs2_tune_get(sdp, gt_greedy_max); | |
402 | unsigned int new_time; | |
403 | ||
404 | spin_lock(&ip->i_spin); | |
405 | ||
406 | if (time_after(ip->i_last_pfault + quantum, jiffies)) { | |
407 | new_time = ip->i_greedy + quantum; | |
408 | if (new_time > max) | |
409 | new_time = max; | |
410 | } else { | |
411 | new_time = ip->i_greedy - quantum; | |
412 | if (!new_time || new_time > max) | |
413 | new_time = 1; | |
414 | } | |
415 | ||
416 | ip->i_greedy = new_time; | |
417 | ||
418 | spin_unlock(&ip->i_spin); | |
419 | ||
feaa7bba | 420 | iput(&ip->i_inode); |
b3b94faa DT |
421 | } |
422 | ||
423 | /** | |
424 | * rgrp_go_demote_ok - Check to see if it's ok to unlock a RG's glock | |
425 | * @gl: the glock | |
426 | * | |
427 | * Returns: 1 if it's ok | |
428 | */ | |
429 | ||
430 | static int rgrp_go_demote_ok(struct gfs2_glock *gl) | |
431 | { | |
432 | return !gl->gl_aspace->i_mapping->nrpages; | |
433 | } | |
434 | ||
435 | /** | |
436 | * rgrp_go_lock - operation done after an rgrp lock is locked by | |
437 | * a first holder on this node. | |
438 | * @gl: the glock | |
439 | * @flags: | |
440 | * | |
441 | * Returns: errno | |
442 | */ | |
443 | ||
444 | static int rgrp_go_lock(struct gfs2_holder *gh) | |
445 | { | |
5c676f6d | 446 | return gfs2_rgrp_bh_get(gh->gh_gl->gl_object); |
b3b94faa DT |
447 | } |
448 | ||
449 | /** | |
450 | * rgrp_go_unlock - operation done before an rgrp lock is unlocked by | |
451 | * a last holder on this node. | |
452 | * @gl: the glock | |
453 | * @flags: | |
454 | * | |
455 | */ | |
456 | ||
457 | static void rgrp_go_unlock(struct gfs2_holder *gh) | |
458 | { | |
5c676f6d | 459 | gfs2_rgrp_bh_put(gh->gh_gl->gl_object); |
b3b94faa DT |
460 | } |
461 | ||
462 | /** | |
463 | * trans_go_xmote_th - promote/demote the transaction glock | |
464 | * @gl: the glock | |
465 | * @state: the requested state | |
466 | * @flags: | |
467 | * | |
468 | */ | |
469 | ||
470 | static void trans_go_xmote_th(struct gfs2_glock *gl, unsigned int state, | |
471 | int flags) | |
472 | { | |
473 | struct gfs2_sbd *sdp = gl->gl_sbd; | |
474 | ||
475 | if (gl->gl_state != LM_ST_UNLOCKED && | |
476 | test_bit(SDF_JOURNAL_LIVE, &sdp->sd_flags)) { | |
477 | gfs2_meta_syncfs(sdp); | |
478 | gfs2_log_shutdown(sdp); | |
479 | } | |
480 | ||
481 | gfs2_glock_xmote_th(gl, state, flags); | |
482 | } | |
483 | ||
484 | /** | |
485 | * trans_go_xmote_bh - After promoting/demoting the transaction glock | |
486 | * @gl: the glock | |
487 | * | |
488 | */ | |
489 | ||
490 | static void trans_go_xmote_bh(struct gfs2_glock *gl) | |
491 | { | |
492 | struct gfs2_sbd *sdp = gl->gl_sbd; | |
feaa7bba | 493 | struct gfs2_inode *ip = GFS2_I(sdp->sd_jdesc->jd_inode); |
5c676f6d | 494 | struct gfs2_glock *j_gl = ip->i_gl; |
55167622 | 495 | struct gfs2_log_header_host head; |
b3b94faa DT |
496 | int error; |
497 | ||
498 | if (gl->gl_state != LM_ST_UNLOCKED && | |
499 | test_bit(SDF_JOURNAL_LIVE, &sdp->sd_flags)) { | |
feaa7bba | 500 | gfs2_meta_cache_flush(GFS2_I(sdp->sd_jdesc->jd_inode)); |
b3b94faa DT |
501 | j_gl->gl_ops->go_inval(j_gl, DIO_METADATA | DIO_DATA); |
502 | ||
503 | error = gfs2_find_jhead(sdp->sd_jdesc, &head); | |
504 | if (error) | |
505 | gfs2_consist(sdp); | |
506 | if (!(head.lh_flags & GFS2_LOG_HEAD_UNMOUNT)) | |
507 | gfs2_consist(sdp); | |
508 | ||
509 | /* Initialize some head of the log stuff */ | |
510 | if (!test_bit(SDF_SHUTDOWN, &sdp->sd_flags)) { | |
511 | sdp->sd_log_sequence = head.lh_sequence + 1; | |
512 | gfs2_log_pointers_init(sdp, head.lh_blkno); | |
513 | } | |
514 | } | |
515 | } | |
516 | ||
517 | /** | |
518 | * trans_go_drop_th - unlock the transaction glock | |
519 | * @gl: the glock | |
520 | * | |
521 | * We want to sync the device even with localcaching. Remember | |
522 | * that localcaching journal replay only marks buffers dirty. | |
523 | */ | |
524 | ||
525 | static void trans_go_drop_th(struct gfs2_glock *gl) | |
526 | { | |
527 | struct gfs2_sbd *sdp = gl->gl_sbd; | |
528 | ||
529 | if (test_bit(SDF_JOURNAL_LIVE, &sdp->sd_flags)) { | |
530 | gfs2_meta_syncfs(sdp); | |
531 | gfs2_log_shutdown(sdp); | |
532 | } | |
533 | ||
534 | gfs2_glock_drop_th(gl); | |
535 | } | |
536 | ||
537 | /** | |
538 | * quota_go_demote_ok - Check to see if it's ok to unlock a quota glock | |
539 | * @gl: the glock | |
540 | * | |
541 | * Returns: 1 if it's ok | |
542 | */ | |
543 | ||
544 | static int quota_go_demote_ok(struct gfs2_glock *gl) | |
545 | { | |
546 | return !atomic_read(&gl->gl_lvb_count); | |
547 | } | |
548 | ||
8fb4b536 | 549 | const struct gfs2_glock_operations gfs2_meta_glops = { |
b3b94faa DT |
550 | .go_xmote_th = gfs2_glock_xmote_th, |
551 | .go_drop_th = gfs2_glock_drop_th, | |
ea67eedb | 552 | .go_type = LM_TYPE_META, |
b3b94faa DT |
553 | }; |
554 | ||
8fb4b536 | 555 | const struct gfs2_glock_operations gfs2_inode_glops = { |
b3b94faa DT |
556 | .go_xmote_th = inode_go_xmote_th, |
557 | .go_xmote_bh = inode_go_xmote_bh, | |
558 | .go_drop_th = inode_go_drop_th, | |
559 | .go_sync = inode_go_sync, | |
560 | .go_inval = inode_go_inval, | |
561 | .go_demote_ok = inode_go_demote_ok, | |
562 | .go_lock = inode_go_lock, | |
563 | .go_unlock = inode_go_unlock, | |
564 | .go_greedy = inode_greedy, | |
ea67eedb | 565 | .go_type = LM_TYPE_INODE, |
b3b94faa DT |
566 | }; |
567 | ||
8fb4b536 | 568 | const struct gfs2_glock_operations gfs2_rgrp_glops = { |
b3b94faa DT |
569 | .go_xmote_th = gfs2_glock_xmote_th, |
570 | .go_drop_th = gfs2_glock_drop_th, | |
571 | .go_sync = meta_go_sync, | |
572 | .go_inval = meta_go_inval, | |
573 | .go_demote_ok = rgrp_go_demote_ok, | |
574 | .go_lock = rgrp_go_lock, | |
575 | .go_unlock = rgrp_go_unlock, | |
ea67eedb | 576 | .go_type = LM_TYPE_RGRP, |
b3b94faa DT |
577 | }; |
578 | ||
8fb4b536 | 579 | const struct gfs2_glock_operations gfs2_trans_glops = { |
b3b94faa DT |
580 | .go_xmote_th = trans_go_xmote_th, |
581 | .go_xmote_bh = trans_go_xmote_bh, | |
582 | .go_drop_th = trans_go_drop_th, | |
ea67eedb | 583 | .go_type = LM_TYPE_NONDISK, |
b3b94faa DT |
584 | }; |
585 | ||
8fb4b536 | 586 | const struct gfs2_glock_operations gfs2_iopen_glops = { |
b3b94faa DT |
587 | .go_xmote_th = gfs2_glock_xmote_th, |
588 | .go_drop_th = gfs2_glock_drop_th, | |
ea67eedb | 589 | .go_type = LM_TYPE_IOPEN, |
b3b94faa DT |
590 | }; |
591 | ||
8fb4b536 | 592 | const struct gfs2_glock_operations gfs2_flock_glops = { |
b3b94faa DT |
593 | .go_xmote_th = gfs2_glock_xmote_th, |
594 | .go_drop_th = gfs2_glock_drop_th, | |
ea67eedb | 595 | .go_type = LM_TYPE_FLOCK, |
b3b94faa DT |
596 | }; |
597 | ||
8fb4b536 | 598 | const struct gfs2_glock_operations gfs2_nondisk_glops = { |
b3b94faa DT |
599 | .go_xmote_th = gfs2_glock_xmote_th, |
600 | .go_drop_th = gfs2_glock_drop_th, | |
ea67eedb | 601 | .go_type = LM_TYPE_NONDISK, |
b3b94faa DT |
602 | }; |
603 | ||
8fb4b536 | 604 | const struct gfs2_glock_operations gfs2_quota_glops = { |
b3b94faa DT |
605 | .go_xmote_th = gfs2_glock_xmote_th, |
606 | .go_drop_th = gfs2_glock_drop_th, | |
607 | .go_demote_ok = quota_go_demote_ok, | |
ea67eedb | 608 | .go_type = LM_TYPE_QUOTA, |
b3b94faa DT |
609 | }; |
610 | ||
8fb4b536 | 611 | const struct gfs2_glock_operations gfs2_journal_glops = { |
b3b94faa DT |
612 | .go_xmote_th = gfs2_glock_xmote_th, |
613 | .go_drop_th = gfs2_glock_drop_th, | |
ea67eedb | 614 | .go_type = LM_TYPE_JOURNAL, |
b3b94faa DT |
615 | }; |
616 |