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1#undef TRACE_SYSTEM
2#define TRACE_SYSTEM gfs2
3
4#if !defined(_TRACE_GFS2_H) || defined(TRACE_HEADER_MULTI_READ)
5#define _TRACE_GFS2_H
6
7#include <linux/tracepoint.h>
8
9#include <linux/fs.h>
10#include <linux/buffer_head.h>
11#include <linux/dlmconstants.h>
12#include <linux/gfs2_ondisk.h>
13#include <linux/writeback.h>
14#include <linux/ktime.h>
15#include "incore.h"
16#include "glock.h"
17#include "rgrp.h"
18
19#define dlm_state_name(nn) { DLM_LOCK_##nn, #nn }
20#define glock_trace_name(x) __print_symbolic(x, \
21 dlm_state_name(IV), \
22 dlm_state_name(NL), \
23 dlm_state_name(CR), \
24 dlm_state_name(CW), \
25 dlm_state_name(PR), \
26 dlm_state_name(PW), \
27 dlm_state_name(EX))
28
29#define block_state_name(x) __print_symbolic(x, \
30 { GFS2_BLKST_FREE, "free" }, \
31 { GFS2_BLKST_USED, "used" }, \
32 { GFS2_BLKST_DINODE, "dinode" }, \
33 { GFS2_BLKST_UNLINKED, "unlinked" })
34
35#define TRACE_RS_DELETE 0
36#define TRACE_RS_TREEDEL 1
37#define TRACE_RS_INSERT 2
38#define TRACE_RS_CLAIM 3
39
40#define rs_func_name(x) __print_symbolic(x, \
41 { 0, "del " }, \
42 { 1, "tdel" }, \
43 { 2, "ins " }, \
44 { 3, "clm " })
45
46#define show_glock_flags(flags) __print_flags(flags, "", \
47 {(1UL << GLF_LOCK), "l" }, \
48 {(1UL << GLF_DEMOTE), "D" }, \
49 {(1UL << GLF_PENDING_DEMOTE), "d" }, \
50 {(1UL << GLF_DEMOTE_IN_PROGRESS), "p" }, \
51 {(1UL << GLF_DIRTY), "y" }, \
52 {(1UL << GLF_LFLUSH), "f" }, \
53 {(1UL << GLF_INVALIDATE_IN_PROGRESS), "i" }, \
54 {(1UL << GLF_REPLY_PENDING), "r" }, \
55 {(1UL << GLF_INITIAL), "I" }, \
56 {(1UL << GLF_FROZEN), "F" }, \
57 {(1UL << GLF_QUEUED), "q" }, \
58 {(1UL << GLF_LRU), "L" }, \
59 {(1UL << GLF_OBJECT), "o" }, \
60 {(1UL << GLF_BLOCKING), "b" })
61
62#ifndef NUMPTY
63#define NUMPTY
64static inline u8 glock_trace_state(unsigned int state)
65{
66 switch(state) {
67 case LM_ST_SHARED:
68 return DLM_LOCK_PR;
69 case LM_ST_DEFERRED:
70 return DLM_LOCK_CW;
71 case LM_ST_EXCLUSIVE:
72 return DLM_LOCK_EX;
73 }
74 return DLM_LOCK_NL;
75}
76#endif
77
78/* Section 1 - Locking
79 *
80 * Objectives:
81 * Latency: Remote demote request to state change
82 * Latency: Local lock request to state change
83 * Latency: State change to lock grant
84 * Correctness: Ordering of local lock state vs. I/O requests
85 * Correctness: Responses to remote demote requests
86 */
87
88/* General glock state change (DLM lock request completes) */
89TRACE_EVENT(gfs2_glock_state_change,
90
91 TP_PROTO(const struct gfs2_glock *gl, unsigned int new_state),
92
93 TP_ARGS(gl, new_state),
94
95 TP_STRUCT__entry(
96 __field( dev_t, dev )
97 __field( u64, glnum )
98 __field( u32, gltype )
99 __field( u8, cur_state )
100 __field( u8, new_state )
101 __field( u8, dmt_state )
102 __field( u8, tgt_state )
103 __field( unsigned long, flags )
104 ),
105
106 TP_fast_assign(
107 __entry->dev = gl->gl_sbd->sd_vfs->s_dev;
108 __entry->glnum = gl->gl_name.ln_number;
109 __entry->gltype = gl->gl_name.ln_type;
110 __entry->cur_state = glock_trace_state(gl->gl_state);
111 __entry->new_state = glock_trace_state(new_state);
112 __entry->tgt_state = glock_trace_state(gl->gl_target);
113 __entry->dmt_state = glock_trace_state(gl->gl_demote_state);
114 __entry->flags = gl->gl_flags | (gl->gl_object ? (1UL<<GLF_OBJECT) : 0);
115 ),
116
117 TP_printk("%u,%u glock %d:%lld state %s to %s tgt:%s dmt:%s flags:%s",
118 MAJOR(__entry->dev), MINOR(__entry->dev), __entry->gltype,
119 (unsigned long long)__entry->glnum,
120 glock_trace_name(__entry->cur_state),
121 glock_trace_name(__entry->new_state),
122 glock_trace_name(__entry->tgt_state),
123 glock_trace_name(__entry->dmt_state),
124 show_glock_flags(__entry->flags))
125);
126
127/* State change -> unlocked, glock is being deallocated */
128TRACE_EVENT(gfs2_glock_put,
129
130 TP_PROTO(const struct gfs2_glock *gl),
131
132 TP_ARGS(gl),
133
134 TP_STRUCT__entry(
135 __field( dev_t, dev )
136 __field( u64, glnum )
137 __field( u32, gltype )
138 __field( u8, cur_state )
139 __field( unsigned long, flags )
140 ),
141
142 TP_fast_assign(
143 __entry->dev = gl->gl_sbd->sd_vfs->s_dev;
144 __entry->gltype = gl->gl_name.ln_type;
145 __entry->glnum = gl->gl_name.ln_number;
146 __entry->cur_state = glock_trace_state(gl->gl_state);
147 __entry->flags = gl->gl_flags | (gl->gl_object ? (1UL<<GLF_OBJECT) : 0);
148 ),
149
150 TP_printk("%u,%u glock %d:%lld state %s => %s flags:%s",
151 MAJOR(__entry->dev), MINOR(__entry->dev),
152 __entry->gltype, (unsigned long long)__entry->glnum,
153 glock_trace_name(__entry->cur_state),
154 glock_trace_name(DLM_LOCK_IV),
155 show_glock_flags(__entry->flags))
156
157);
158
159/* Callback (local or remote) requesting lock demotion */
160TRACE_EVENT(gfs2_demote_rq,
161
162 TP_PROTO(const struct gfs2_glock *gl, bool remote),
163
164 TP_ARGS(gl, remote),
165
166 TP_STRUCT__entry(
167 __field( dev_t, dev )
168 __field( u64, glnum )
169 __field( u32, gltype )
170 __field( u8, cur_state )
171 __field( u8, dmt_state )
172 __field( unsigned long, flags )
173 __field( bool, remote )
174 ),
175
176 TP_fast_assign(
177 __entry->dev = gl->gl_sbd->sd_vfs->s_dev;
178 __entry->gltype = gl->gl_name.ln_type;
179 __entry->glnum = gl->gl_name.ln_number;
180 __entry->cur_state = glock_trace_state(gl->gl_state);
181 __entry->dmt_state = glock_trace_state(gl->gl_demote_state);
182 __entry->flags = gl->gl_flags | (gl->gl_object ? (1UL<<GLF_OBJECT) : 0);
183 __entry->remote = remote;
184 ),
185
186 TP_printk("%u,%u glock %d:%lld demote %s to %s flags:%s %s",
187 MAJOR(__entry->dev), MINOR(__entry->dev), __entry->gltype,
188 (unsigned long long)__entry->glnum,
189 glock_trace_name(__entry->cur_state),
190 glock_trace_name(__entry->dmt_state),
191 show_glock_flags(__entry->flags),
192 __entry->remote ? "remote" : "local")
193
194);
195
196/* Promotion/grant of a glock */
197TRACE_EVENT(gfs2_promote,
198
199 TP_PROTO(const struct gfs2_holder *gh, int first),
200
201 TP_ARGS(gh, first),
202
203 TP_STRUCT__entry(
204 __field( dev_t, dev )
205 __field( u64, glnum )
206 __field( u32, gltype )
207 __field( int, first )
208 __field( u8, state )
209 ),
210
211 TP_fast_assign(
212 __entry->dev = gh->gh_gl->gl_sbd->sd_vfs->s_dev;
213 __entry->glnum = gh->gh_gl->gl_name.ln_number;
214 __entry->gltype = gh->gh_gl->gl_name.ln_type;
215 __entry->first = first;
216 __entry->state = glock_trace_state(gh->gh_state);
217 ),
218
219 TP_printk("%u,%u glock %u:%llu promote %s %s",
220 MAJOR(__entry->dev), MINOR(__entry->dev), __entry->gltype,
221 (unsigned long long)__entry->glnum,
222 __entry->first ? "first": "other",
223 glock_trace_name(__entry->state))
224);
225
226/* Queue/dequeue a lock request */
227TRACE_EVENT(gfs2_glock_queue,
228
229 TP_PROTO(const struct gfs2_holder *gh, int queue),
230
231 TP_ARGS(gh, queue),
232
233 TP_STRUCT__entry(
234 __field( dev_t, dev )
235 __field( u64, glnum )
236 __field( u32, gltype )
237 __field( int, queue )
238 __field( u8, state )
239 ),
240
241 TP_fast_assign(
242 __entry->dev = gh->gh_gl->gl_sbd->sd_vfs->s_dev;
243 __entry->glnum = gh->gh_gl->gl_name.ln_number;
244 __entry->gltype = gh->gh_gl->gl_name.ln_type;
245 __entry->queue = queue;
246 __entry->state = glock_trace_state(gh->gh_state);
247 ),
248
249 TP_printk("%u,%u glock %u:%llu %squeue %s",
250 MAJOR(__entry->dev), MINOR(__entry->dev), __entry->gltype,
251 (unsigned long long)__entry->glnum,
252 __entry->queue ? "" : "de",
253 glock_trace_name(__entry->state))
254);
255
256/* DLM sends a reply to GFS2 */
257TRACE_EVENT(gfs2_glock_lock_time,
258
259 TP_PROTO(const struct gfs2_glock *gl, s64 tdiff),
260
261 TP_ARGS(gl, tdiff),
262
263 TP_STRUCT__entry(
264 __field( dev_t, dev )
265 __field( u64, glnum )
266 __field( u32, gltype )
267 __field( int, status )
268 __field( char, flags )
269 __field( s64, tdiff )
270 __field( s64, srtt )
271 __field( s64, srttvar )
272 __field( s64, srttb )
273 __field( s64, srttvarb )
274 __field( s64, sirt )
275 __field( s64, sirtvar )
276 __field( s64, dcount )
277 __field( s64, qcount )
278 ),
279
280 TP_fast_assign(
281 __entry->dev = gl->gl_sbd->sd_vfs->s_dev;
282 __entry->glnum = gl->gl_name.ln_number;
283 __entry->gltype = gl->gl_name.ln_type;
284 __entry->status = gl->gl_lksb.sb_status;
285 __entry->flags = gl->gl_lksb.sb_flags;
286 __entry->tdiff = tdiff;
287 __entry->srtt = gl->gl_stats.stats[GFS2_LKS_SRTT];
288 __entry->srttvar = gl->gl_stats.stats[GFS2_LKS_SRTTVAR];
289 __entry->srttb = gl->gl_stats.stats[GFS2_LKS_SRTTB];
290 __entry->srttvarb = gl->gl_stats.stats[GFS2_LKS_SRTTVARB];
291 __entry->sirt = gl->gl_stats.stats[GFS2_LKS_SIRT];
292 __entry->sirtvar = gl->gl_stats.stats[GFS2_LKS_SIRTVAR];
293 __entry->dcount = gl->gl_stats.stats[GFS2_LKS_DCOUNT];
294 __entry->qcount = gl->gl_stats.stats[GFS2_LKS_QCOUNT];
295 ),
296
297 TP_printk("%u,%u glock %d:%lld status:%d flags:%02x tdiff:%lld srtt:%lld/%lld srttb:%lld/%lld sirt:%lld/%lld dcnt:%lld qcnt:%lld",
298 MAJOR(__entry->dev), MINOR(__entry->dev), __entry->gltype,
299 (unsigned long long)__entry->glnum,
300 __entry->status, __entry->flags,
301 (long long)__entry->tdiff,
302 (long long)__entry->srtt,
303 (long long)__entry->srttvar,
304 (long long)__entry->srttb,
305 (long long)__entry->srttvarb,
306 (long long)__entry->sirt,
307 (long long)__entry->sirtvar,
308 (long long)__entry->dcount,
309 (long long)__entry->qcount)
310);
311
312/* Section 2 - Log/journal
313 *
314 * Objectives:
315 * Latency: Log flush time
316 * Correctness: pin/unpin vs. disk I/O ordering
317 * Performance: Log usage stats
318 */
319
320/* Pin/unpin a block in the log */
321TRACE_EVENT(gfs2_pin,
322
323 TP_PROTO(const struct gfs2_bufdata *bd, int pin),
324
325 TP_ARGS(bd, pin),
326
327 TP_STRUCT__entry(
328 __field( dev_t, dev )
329 __field( int, pin )
330 __field( u32, len )
331 __field( sector_t, block )
332 __field( u64, ino )
333 ),
334
335 TP_fast_assign(
336 __entry->dev = bd->bd_gl->gl_sbd->sd_vfs->s_dev;
337 __entry->pin = pin;
338 __entry->len = bd->bd_bh->b_size;
339 __entry->block = bd->bd_bh->b_blocknr;
340 __entry->ino = bd->bd_gl->gl_name.ln_number;
341 ),
342
343 TP_printk("%u,%u log %s %llu/%lu inode %llu",
344 MAJOR(__entry->dev), MINOR(__entry->dev),
345 __entry->pin ? "pin" : "unpin",
346 (unsigned long long)__entry->block,
347 (unsigned long)__entry->len,
348 (unsigned long long)__entry->ino)
349);
350
351/* Flushing the log */
352TRACE_EVENT(gfs2_log_flush,
353
354 TP_PROTO(const struct gfs2_sbd *sdp, int start),
355
356 TP_ARGS(sdp, start),
357
358 TP_STRUCT__entry(
359 __field( dev_t, dev )
360 __field( int, start )
361 __field( u64, log_seq )
362 ),
363
364 TP_fast_assign(
365 __entry->dev = sdp->sd_vfs->s_dev;
366 __entry->start = start;
367 __entry->log_seq = sdp->sd_log_sequence;
368 ),
369
370 TP_printk("%u,%u log flush %s %llu",
371 MAJOR(__entry->dev), MINOR(__entry->dev),
372 __entry->start ? "start" : "end",
373 (unsigned long long)__entry->log_seq)
374);
375
376/* Reserving/releasing blocks in the log */
377TRACE_EVENT(gfs2_log_blocks,
378
379 TP_PROTO(const struct gfs2_sbd *sdp, int blocks),
380
381 TP_ARGS(sdp, blocks),
382
383 TP_STRUCT__entry(
384 __field( dev_t, dev )
385 __field( int, blocks )
386 ),
387
388 TP_fast_assign(
389 __entry->dev = sdp->sd_vfs->s_dev;
390 __entry->blocks = blocks;
391 ),
392
393 TP_printk("%u,%u log reserve %d", MAJOR(__entry->dev),
394 MINOR(__entry->dev), __entry->blocks)
395);
396
397/* Writing back the AIL */
398TRACE_EVENT(gfs2_ail_flush,
399
400 TP_PROTO(const struct gfs2_sbd *sdp, const struct writeback_control *wbc, int start),
401
402 TP_ARGS(sdp, wbc, start),
403
404 TP_STRUCT__entry(
405 __field( dev_t, dev )
406 __field( int, start )
407 __field( int, sync_mode )
408 __field( long, nr_to_write )
409 ),
410
411 TP_fast_assign(
412 __entry->dev = sdp->sd_vfs->s_dev;
413 __entry->start = start;
414 __entry->sync_mode = wbc->sync_mode;
415 __entry->nr_to_write = wbc->nr_to_write;
416 ),
417
418 TP_printk("%u,%u ail flush %s %s %ld", MAJOR(__entry->dev),
419 MINOR(__entry->dev), __entry->start ? "start" : "end",
420 __entry->sync_mode == WB_SYNC_ALL ? "all" : "none",
421 __entry->nr_to_write)
422);
423
424/* Section 3 - bmap
425 *
426 * Objectives:
427 * Latency: Bmap request time
428 * Performance: Block allocator tracing
429 * Correctness: Test of disard generation vs. blocks allocated
430 */
431
432/* Map an extent of blocks, possibly a new allocation */
433TRACE_EVENT(gfs2_bmap,
434
435 TP_PROTO(const struct gfs2_inode *ip, const struct buffer_head *bh,
436 sector_t lblock, int create, int errno),
437
438 TP_ARGS(ip, bh, lblock, create, errno),
439
440 TP_STRUCT__entry(
441 __field( dev_t, dev )
442 __field( sector_t, lblock )
443 __field( sector_t, pblock )
444 __field( u64, inum )
445 __field( unsigned long, state )
446 __field( u32, len )
447 __field( int, create )
448 __field( int, errno )
449 ),
450
451 TP_fast_assign(
452 __entry->dev = ip->i_gl->gl_sbd->sd_vfs->s_dev;
453 __entry->lblock = lblock;
454 __entry->pblock = buffer_mapped(bh) ? bh->b_blocknr : 0;
455 __entry->inum = ip->i_no_addr;
456 __entry->state = bh->b_state;
457 __entry->len = bh->b_size;
458 __entry->create = create;
459 __entry->errno = errno;
460 ),
461
462 TP_printk("%u,%u bmap %llu map %llu/%lu to %llu flags:%08lx %s %d",
463 MAJOR(__entry->dev), MINOR(__entry->dev),
464 (unsigned long long)__entry->inum,
465 (unsigned long long)__entry->lblock,
466 (unsigned long)__entry->len,
467 (unsigned long long)__entry->pblock,
468 __entry->state, __entry->create ? "create " : "nocreate",
469 __entry->errno)
470);
471
472/* Keep track of blocks as they are allocated/freed */
473TRACE_EVENT(gfs2_block_alloc,
474
475 TP_PROTO(const struct gfs2_inode *ip, struct gfs2_rgrpd *rgd,
476 u64 block, unsigned len, u8 block_state),
477
478 TP_ARGS(ip, rgd, block, len, block_state),
479
480 TP_STRUCT__entry(
481 __field( dev_t, dev )
482 __field( u64, start )
483 __field( u64, inum )
484 __field( u32, len )
485 __field( u8, block_state )
486 __field( u64, rd_addr )
487 __field( u32, rd_free_clone )
488 __field( u32, rd_reserved )
489 ),
490
491 TP_fast_assign(
492 __entry->dev = rgd->rd_gl->gl_sbd->sd_vfs->s_dev;
493 __entry->start = block;
494 __entry->inum = ip->i_no_addr;
495 __entry->len = len;
496 __entry->block_state = block_state;
497 __entry->rd_addr = rgd->rd_addr;
498 __entry->rd_free_clone = rgd->rd_free_clone;
499 __entry->rd_reserved = rgd->rd_reserved;
500 ),
501
502 TP_printk("%u,%u bmap %llu alloc %llu/%lu %s rg:%llu rf:%u rr:%lu",
503 MAJOR(__entry->dev), MINOR(__entry->dev),
504 (unsigned long long)__entry->inum,
505 (unsigned long long)__entry->start,
506 (unsigned long)__entry->len,
507 block_state_name(__entry->block_state),
508 (unsigned long long)__entry->rd_addr,
509 __entry->rd_free_clone, (unsigned long)__entry->rd_reserved)
510);
511
512/* Keep track of multi-block reservations as they are allocated/freed */
513TRACE_EVENT(gfs2_rs,
514
515 TP_PROTO(const struct gfs2_blkreserv *rs, u8 func),
516
517 TP_ARGS(rs, func),
518
519 TP_STRUCT__entry(
520 __field( dev_t, dev )
521 __field( u64, rd_addr )
522 __field( u32, rd_free_clone )
523 __field( u32, rd_reserved )
524 __field( u64, inum )
525 __field( u64, start )
526 __field( u32, free )
527 __field( u8, func )
528 ),
529
530 TP_fast_assign(
531 __entry->dev = rs->rs_rbm.rgd->rd_sbd->sd_vfs->s_dev;
532 __entry->rd_addr = rs->rs_rbm.rgd->rd_addr;
533 __entry->rd_free_clone = rs->rs_rbm.rgd->rd_free_clone;
534 __entry->rd_reserved = rs->rs_rbm.rgd->rd_reserved;
535 __entry->inum = rs->rs_inum;
536 __entry->start = gfs2_rbm_to_block(&rs->rs_rbm);
537 __entry->free = rs->rs_free;
538 __entry->func = func;
539 ),
540
541 TP_printk("%u,%u bmap %llu resrv %llu rg:%llu rf:%lu rr:%lu %s f:%lu",
542 MAJOR(__entry->dev), MINOR(__entry->dev),
543 (unsigned long long)__entry->inum,
544 (unsigned long long)__entry->start,
545 (unsigned long long)__entry->rd_addr,
546 (unsigned long)__entry->rd_free_clone,
547 (unsigned long)__entry->rd_reserved,
548 rs_func_name(__entry->func), (unsigned long)__entry->free)
549);
550
551#endif /* _TRACE_GFS2_H */
552
553/* This part must be outside protection */
554#undef TRACE_INCLUDE_PATH
555#define TRACE_INCLUDE_PATH .
556#define TRACE_INCLUDE_FILE trace_gfs2
557#include <trace/define_trace.h>
558
1/* SPDX-License-Identifier: GPL-2.0 */
2#undef TRACE_SYSTEM
3#define TRACE_SYSTEM gfs2
4
5#if !defined(_TRACE_GFS2_H) || defined(TRACE_HEADER_MULTI_READ)
6#define _TRACE_GFS2_H
7
8#include <linux/tracepoint.h>
9
10#include <linux/fs.h>
11#include <linux/buffer_head.h>
12#include <linux/dlmconstants.h>
13#include <linux/gfs2_ondisk.h>
14#include <linux/writeback.h>
15#include <linux/ktime.h>
16#include <linux/iomap.h>
17#include "incore.h"
18#include "glock.h"
19#include "rgrp.h"
20
21#define dlm_state_name(nn) { DLM_LOCK_##nn, #nn }
22#define glock_trace_name(x) __print_symbolic(x, \
23 dlm_state_name(IV), \
24 dlm_state_name(NL), \
25 dlm_state_name(CR), \
26 dlm_state_name(CW), \
27 dlm_state_name(PR), \
28 dlm_state_name(PW), \
29 dlm_state_name(EX))
30
31#define block_state_name(x) __print_symbolic(x, \
32 { GFS2_BLKST_FREE, "free" }, \
33 { GFS2_BLKST_USED, "used" }, \
34 { GFS2_BLKST_DINODE, "dinode" }, \
35 { GFS2_BLKST_UNLINKED, "unlinked" })
36
37#define TRACE_RS_DELETE 0
38#define TRACE_RS_TREEDEL 1
39#define TRACE_RS_INSERT 2
40#define TRACE_RS_CLAIM 3
41
42#define rs_func_name(x) __print_symbolic(x, \
43 { 0, "del " }, \
44 { 1, "tdel" }, \
45 { 2, "ins " }, \
46 { 3, "clm " })
47
48#define show_glock_flags(flags) __print_flags(flags, "", \
49 {(1UL << GLF_LOCK), "l" }, \
50 {(1UL << GLF_DEMOTE), "D" }, \
51 {(1UL << GLF_PENDING_DEMOTE), "d" }, \
52 {(1UL << GLF_DEMOTE_IN_PROGRESS), "p" }, \
53 {(1UL << GLF_DIRTY), "y" }, \
54 {(1UL << GLF_LFLUSH), "f" }, \
55 {(1UL << GLF_INVALIDATE_IN_PROGRESS), "i" }, \
56 {(1UL << GLF_REPLY_PENDING), "r" }, \
57 {(1UL << GLF_INITIAL), "I" }, \
58 {(1UL << GLF_FROZEN), "F" }, \
59 {(1UL << GLF_LRU), "L" }, \
60 {(1UL << GLF_OBJECT), "o" }, \
61 {(1UL << GLF_BLOCKING), "b" })
62
63#ifndef NUMPTY
64#define NUMPTY
65static inline u8 glock_trace_state(unsigned int state)
66{
67 switch(state) {
68 case LM_ST_SHARED:
69 return DLM_LOCK_PR;
70 case LM_ST_DEFERRED:
71 return DLM_LOCK_CW;
72 case LM_ST_EXCLUSIVE:
73 return DLM_LOCK_EX;
74 }
75 return DLM_LOCK_NL;
76}
77#endif
78
79/* Section 1 - Locking
80 *
81 * Objectives:
82 * Latency: Remote demote request to state change
83 * Latency: Local lock request to state change
84 * Latency: State change to lock grant
85 * Correctness: Ordering of local lock state vs. I/O requests
86 * Correctness: Responses to remote demote requests
87 */
88
89/* General glock state change (DLM lock request completes) */
90TRACE_EVENT(gfs2_glock_state_change,
91
92 TP_PROTO(const struct gfs2_glock *gl, unsigned int new_state),
93
94 TP_ARGS(gl, new_state),
95
96 TP_STRUCT__entry(
97 __field( dev_t, dev )
98 __field( u64, glnum )
99 __field( u32, gltype )
100 __field( u8, cur_state )
101 __field( u8, new_state )
102 __field( u8, dmt_state )
103 __field( u8, tgt_state )
104 __field( unsigned long, flags )
105 ),
106
107 TP_fast_assign(
108 __entry->dev = gl->gl_name.ln_sbd->sd_vfs->s_dev;
109 __entry->glnum = gl->gl_name.ln_number;
110 __entry->gltype = gl->gl_name.ln_type;
111 __entry->cur_state = glock_trace_state(gl->gl_state);
112 __entry->new_state = glock_trace_state(new_state);
113 __entry->tgt_state = glock_trace_state(gl->gl_target);
114 __entry->dmt_state = glock_trace_state(gl->gl_demote_state);
115 __entry->flags = gl->gl_flags | (gl->gl_object ? (1UL<<GLF_OBJECT) : 0);
116 ),
117
118 TP_printk("%u,%u glock %d:%lld state %s to %s tgt:%s dmt:%s flags:%s",
119 MAJOR(__entry->dev), MINOR(__entry->dev), __entry->gltype,
120 (unsigned long long)__entry->glnum,
121 glock_trace_name(__entry->cur_state),
122 glock_trace_name(__entry->new_state),
123 glock_trace_name(__entry->tgt_state),
124 glock_trace_name(__entry->dmt_state),
125 show_glock_flags(__entry->flags))
126);
127
128/* State change -> unlocked, glock is being deallocated */
129TRACE_EVENT(gfs2_glock_put,
130
131 TP_PROTO(const struct gfs2_glock *gl),
132
133 TP_ARGS(gl),
134
135 TP_STRUCT__entry(
136 __field( dev_t, dev )
137 __field( u64, glnum )
138 __field( u32, gltype )
139 __field( u8, cur_state )
140 __field( unsigned long, flags )
141 ),
142
143 TP_fast_assign(
144 __entry->dev = gl->gl_name.ln_sbd->sd_vfs->s_dev;
145 __entry->gltype = gl->gl_name.ln_type;
146 __entry->glnum = gl->gl_name.ln_number;
147 __entry->cur_state = glock_trace_state(gl->gl_state);
148 __entry->flags = gl->gl_flags | (gl->gl_object ? (1UL<<GLF_OBJECT) : 0);
149 ),
150
151 TP_printk("%u,%u glock %d:%lld state %s => %s flags:%s",
152 MAJOR(__entry->dev), MINOR(__entry->dev),
153 __entry->gltype, (unsigned long long)__entry->glnum,
154 glock_trace_name(__entry->cur_state),
155 glock_trace_name(DLM_LOCK_IV),
156 show_glock_flags(__entry->flags))
157
158);
159
160/* Callback (local or remote) requesting lock demotion */
161TRACE_EVENT(gfs2_demote_rq,
162
163 TP_PROTO(const struct gfs2_glock *gl, bool remote),
164
165 TP_ARGS(gl, remote),
166
167 TP_STRUCT__entry(
168 __field( dev_t, dev )
169 __field( u64, glnum )
170 __field( u32, gltype )
171 __field( u8, cur_state )
172 __field( u8, dmt_state )
173 __field( unsigned long, flags )
174 __field( bool, remote )
175 ),
176
177 TP_fast_assign(
178 __entry->dev = gl->gl_name.ln_sbd->sd_vfs->s_dev;
179 __entry->gltype = gl->gl_name.ln_type;
180 __entry->glnum = gl->gl_name.ln_number;
181 __entry->cur_state = glock_trace_state(gl->gl_state);
182 __entry->dmt_state = glock_trace_state(gl->gl_demote_state);
183 __entry->flags = gl->gl_flags | (gl->gl_object ? (1UL<<GLF_OBJECT) : 0);
184 __entry->remote = remote;
185 ),
186
187 TP_printk("%u,%u glock %d:%lld demote %s to %s flags:%s %s",
188 MAJOR(__entry->dev), MINOR(__entry->dev), __entry->gltype,
189 (unsigned long long)__entry->glnum,
190 glock_trace_name(__entry->cur_state),
191 glock_trace_name(__entry->dmt_state),
192 show_glock_flags(__entry->flags),
193 __entry->remote ? "remote" : "local")
194
195);
196
197/* Promotion/grant of a glock */
198TRACE_EVENT(gfs2_promote,
199
200 TP_PROTO(const struct gfs2_holder *gh, int first),
201
202 TP_ARGS(gh, first),
203
204 TP_STRUCT__entry(
205 __field( dev_t, dev )
206 __field( u64, glnum )
207 __field( u32, gltype )
208 __field( int, first )
209 __field( u8, state )
210 ),
211
212 TP_fast_assign(
213 __entry->dev = gh->gh_gl->gl_name.ln_sbd->sd_vfs->s_dev;
214 __entry->glnum = gh->gh_gl->gl_name.ln_number;
215 __entry->gltype = gh->gh_gl->gl_name.ln_type;
216 __entry->first = first;
217 __entry->state = glock_trace_state(gh->gh_state);
218 ),
219
220 TP_printk("%u,%u glock %u:%llu promote %s %s",
221 MAJOR(__entry->dev), MINOR(__entry->dev), __entry->gltype,
222 (unsigned long long)__entry->glnum,
223 __entry->first ? "first": "other",
224 glock_trace_name(__entry->state))
225);
226
227/* Queue/dequeue a lock request */
228TRACE_EVENT(gfs2_glock_queue,
229
230 TP_PROTO(const struct gfs2_holder *gh, int queue),
231
232 TP_ARGS(gh, queue),
233
234 TP_STRUCT__entry(
235 __field( dev_t, dev )
236 __field( u64, glnum )
237 __field( u32, gltype )
238 __field( int, queue )
239 __field( u8, state )
240 ),
241
242 TP_fast_assign(
243 __entry->dev = gh->gh_gl->gl_name.ln_sbd->sd_vfs->s_dev;
244 __entry->glnum = gh->gh_gl->gl_name.ln_number;
245 __entry->gltype = gh->gh_gl->gl_name.ln_type;
246 __entry->queue = queue;
247 __entry->state = glock_trace_state(gh->gh_state);
248 ),
249
250 TP_printk("%u,%u glock %u:%llu %squeue %s",
251 MAJOR(__entry->dev), MINOR(__entry->dev), __entry->gltype,
252 (unsigned long long)__entry->glnum,
253 __entry->queue ? "" : "de",
254 glock_trace_name(__entry->state))
255);
256
257/* DLM sends a reply to GFS2 */
258TRACE_EVENT(gfs2_glock_lock_time,
259
260 TP_PROTO(const struct gfs2_glock *gl, s64 tdiff),
261
262 TP_ARGS(gl, tdiff),
263
264 TP_STRUCT__entry(
265 __field( dev_t, dev )
266 __field( u64, glnum )
267 __field( u32, gltype )
268 __field( int, status )
269 __field( char, flags )
270 __field( s64, tdiff )
271 __field( u64, srtt )
272 __field( u64, srttvar )
273 __field( u64, srttb )
274 __field( u64, srttvarb )
275 __field( u64, sirt )
276 __field( u64, sirtvar )
277 __field( u64, dcount )
278 __field( u64, qcount )
279 ),
280
281 TP_fast_assign(
282 __entry->dev = gl->gl_name.ln_sbd->sd_vfs->s_dev;
283 __entry->glnum = gl->gl_name.ln_number;
284 __entry->gltype = gl->gl_name.ln_type;
285 __entry->status = gl->gl_lksb.sb_status;
286 __entry->flags = gl->gl_lksb.sb_flags;
287 __entry->tdiff = tdiff;
288 __entry->srtt = gl->gl_stats.stats[GFS2_LKS_SRTT];
289 __entry->srttvar = gl->gl_stats.stats[GFS2_LKS_SRTTVAR];
290 __entry->srttb = gl->gl_stats.stats[GFS2_LKS_SRTTB];
291 __entry->srttvarb = gl->gl_stats.stats[GFS2_LKS_SRTTVARB];
292 __entry->sirt = gl->gl_stats.stats[GFS2_LKS_SIRT];
293 __entry->sirtvar = gl->gl_stats.stats[GFS2_LKS_SIRTVAR];
294 __entry->dcount = gl->gl_stats.stats[GFS2_LKS_DCOUNT];
295 __entry->qcount = gl->gl_stats.stats[GFS2_LKS_QCOUNT];
296 ),
297
298 TP_printk("%u,%u glock %d:%lld status:%d flags:%02x tdiff:%lld srtt:%lld/%lld srttb:%lld/%lld sirt:%lld/%lld dcnt:%lld qcnt:%lld",
299 MAJOR(__entry->dev), MINOR(__entry->dev), __entry->gltype,
300 (unsigned long long)__entry->glnum,
301 __entry->status, __entry->flags,
302 (long long)__entry->tdiff,
303 (long long)__entry->srtt,
304 (long long)__entry->srttvar,
305 (long long)__entry->srttb,
306 (long long)__entry->srttvarb,
307 (long long)__entry->sirt,
308 (long long)__entry->sirtvar,
309 (long long)__entry->dcount,
310 (long long)__entry->qcount)
311);
312
313/* Section 2 - Log/journal
314 *
315 * Objectives:
316 * Latency: Log flush time
317 * Correctness: pin/unpin vs. disk I/O ordering
318 * Performance: Log usage stats
319 */
320
321/* Pin/unpin a block in the log */
322TRACE_EVENT(gfs2_pin,
323
324 TP_PROTO(const struct gfs2_bufdata *bd, int pin),
325
326 TP_ARGS(bd, pin),
327
328 TP_STRUCT__entry(
329 __field( dev_t, dev )
330 __field( int, pin )
331 __field( u32, len )
332 __field( sector_t, block )
333 __field( u64, ino )
334 ),
335
336 TP_fast_assign(
337 __entry->dev = bd->bd_gl->gl_name.ln_sbd->sd_vfs->s_dev;
338 __entry->pin = pin;
339 __entry->len = bd->bd_bh->b_size;
340 __entry->block = bd->bd_bh->b_blocknr;
341 __entry->ino = bd->bd_gl->gl_name.ln_number;
342 ),
343
344 TP_printk("%u,%u log %s %llu/%lu inode %llu",
345 MAJOR(__entry->dev), MINOR(__entry->dev),
346 __entry->pin ? "pin" : "unpin",
347 (unsigned long long)__entry->block,
348 (unsigned long)__entry->len,
349 (unsigned long long)__entry->ino)
350);
351
352/* Flushing the log */
353TRACE_EVENT(gfs2_log_flush,
354
355 TP_PROTO(const struct gfs2_sbd *sdp, int start, u32 flags),
356
357 TP_ARGS(sdp, start, flags),
358
359 TP_STRUCT__entry(
360 __field( dev_t, dev )
361 __field( int, start )
362 __field( u64, log_seq )
363 __field( u32, flags )
364 ),
365
366 TP_fast_assign(
367 __entry->dev = sdp->sd_vfs->s_dev;
368 __entry->start = start;
369 __entry->log_seq = sdp->sd_log_sequence;
370 __entry->flags = flags;
371 ),
372
373 TP_printk("%u,%u log flush %s %llu %llx",
374 MAJOR(__entry->dev), MINOR(__entry->dev),
375 __entry->start ? "start" : "end",
376 (unsigned long long)__entry->log_seq,
377 (unsigned long long)__entry->flags)
378);
379
380/* Reserving/releasing blocks in the log */
381TRACE_EVENT(gfs2_log_blocks,
382
383 TP_PROTO(const struct gfs2_sbd *sdp, int blocks),
384
385 TP_ARGS(sdp, blocks),
386
387 TP_STRUCT__entry(
388 __field( dev_t, dev )
389 __field( int, blocks )
390 __field( int, blks_free )
391 ),
392
393 TP_fast_assign(
394 __entry->dev = sdp->sd_vfs->s_dev;
395 __entry->blocks = blocks;
396 __entry->blks_free = atomic_read(&sdp->sd_log_blks_free);
397 ),
398
399 TP_printk("%u,%u log reserve %d %d", MAJOR(__entry->dev),
400 MINOR(__entry->dev), __entry->blocks, __entry->blks_free)
401);
402
403/* Writing back the AIL */
404TRACE_EVENT(gfs2_ail_flush,
405
406 TP_PROTO(const struct gfs2_sbd *sdp, const struct writeback_control *wbc, int start),
407
408 TP_ARGS(sdp, wbc, start),
409
410 TP_STRUCT__entry(
411 __field( dev_t, dev )
412 __field( int, start )
413 __field( int, sync_mode )
414 __field( long, nr_to_write )
415 ),
416
417 TP_fast_assign(
418 __entry->dev = sdp->sd_vfs->s_dev;
419 __entry->start = start;
420 __entry->sync_mode = wbc->sync_mode;
421 __entry->nr_to_write = wbc->nr_to_write;
422 ),
423
424 TP_printk("%u,%u ail flush %s %s %ld", MAJOR(__entry->dev),
425 MINOR(__entry->dev), __entry->start ? "start" : "end",
426 __entry->sync_mode == WB_SYNC_ALL ? "all" : "none",
427 __entry->nr_to_write)
428);
429
430/* Section 3 - bmap
431 *
432 * Objectives:
433 * Latency: Bmap request time
434 * Performance: Block allocator tracing
435 * Correctness: Test of disard generation vs. blocks allocated
436 */
437
438/* Map an extent of blocks, possibly a new allocation */
439TRACE_EVENT(gfs2_bmap,
440
441 TP_PROTO(const struct gfs2_inode *ip, const struct buffer_head *bh,
442 sector_t lblock, int create, int errno),
443
444 TP_ARGS(ip, bh, lblock, create, errno),
445
446 TP_STRUCT__entry(
447 __field( dev_t, dev )
448 __field( sector_t, lblock )
449 __field( sector_t, pblock )
450 __field( u64, inum )
451 __field( unsigned long, state )
452 __field( u32, len )
453 __field( int, create )
454 __field( int, errno )
455 ),
456
457 TP_fast_assign(
458 __entry->dev = ip->i_gl->gl_name.ln_sbd->sd_vfs->s_dev;
459 __entry->lblock = lblock;
460 __entry->pblock = buffer_mapped(bh) ? bh->b_blocknr : 0;
461 __entry->inum = ip->i_no_addr;
462 __entry->state = bh->b_state;
463 __entry->len = bh->b_size;
464 __entry->create = create;
465 __entry->errno = errno;
466 ),
467
468 TP_printk("%u,%u bmap %llu map %llu/%lu to %llu flags:%08lx %s %d",
469 MAJOR(__entry->dev), MINOR(__entry->dev),
470 (unsigned long long)__entry->inum,
471 (unsigned long long)__entry->lblock,
472 (unsigned long)__entry->len,
473 (unsigned long long)__entry->pblock,
474 __entry->state, __entry->create ? "create " : "nocreate",
475 __entry->errno)
476);
477
478TRACE_EVENT(gfs2_iomap_start,
479
480 TP_PROTO(const struct gfs2_inode *ip, loff_t pos, ssize_t length,
481 u16 flags),
482
483 TP_ARGS(ip, pos, length, flags),
484
485 TP_STRUCT__entry(
486 __field( dev_t, dev )
487 __field( u64, inum )
488 __field( loff_t, pos )
489 __field( ssize_t, length )
490 __field( u16, flags )
491 ),
492
493 TP_fast_assign(
494 __entry->dev = ip->i_gl->gl_name.ln_sbd->sd_vfs->s_dev;
495 __entry->inum = ip->i_no_addr;
496 __entry->pos = pos;
497 __entry->length = length;
498 __entry->flags = flags;
499 ),
500
501 TP_printk("%u,%u bmap %llu iomap start %llu/%lu flags:%08x",
502 MAJOR(__entry->dev), MINOR(__entry->dev),
503 (unsigned long long)__entry->inum,
504 (unsigned long long)__entry->pos,
505 (unsigned long)__entry->length, (u16)__entry->flags)
506);
507
508TRACE_EVENT(gfs2_iomap_end,
509
510 TP_PROTO(const struct gfs2_inode *ip, struct iomap *iomap, int ret),
511
512 TP_ARGS(ip, iomap, ret),
513
514 TP_STRUCT__entry(
515 __field( dev_t, dev )
516 __field( u64, inum )
517 __field( loff_t, offset )
518 __field( ssize_t, length )
519 __field( sector_t, pblock )
520 __field( u16, flags )
521 __field( u16, type )
522 __field( int, ret )
523 ),
524
525 TP_fast_assign(
526 __entry->dev = ip->i_gl->gl_name.ln_sbd->sd_vfs->s_dev;
527 __entry->inum = ip->i_no_addr;
528 __entry->offset = iomap->offset;
529 __entry->length = iomap->length;
530 __entry->pblock = iomap->addr == IOMAP_NULL_ADDR ? 0 :
531 (iomap->addr >> ip->i_inode.i_blkbits);
532 __entry->flags = iomap->flags;
533 __entry->type = iomap->type;
534 __entry->ret = ret;
535 ),
536
537 TP_printk("%u,%u bmap %llu iomap end %llu/%lu to %llu ty:%d flags:%08x rc:%d",
538 MAJOR(__entry->dev), MINOR(__entry->dev),
539 (unsigned long long)__entry->inum,
540 (unsigned long long)__entry->offset,
541 (unsigned long)__entry->length,
542 (long long)__entry->pblock,
543 (u16)__entry->type,
544 (u16)__entry->flags, __entry->ret)
545);
546
547/* Keep track of blocks as they are allocated/freed */
548TRACE_EVENT(gfs2_block_alloc,
549
550 TP_PROTO(const struct gfs2_inode *ip, struct gfs2_rgrpd *rgd,
551 u64 block, unsigned len, u8 block_state),
552
553 TP_ARGS(ip, rgd, block, len, block_state),
554
555 TP_STRUCT__entry(
556 __field( dev_t, dev )
557 __field( u64, start )
558 __field( u64, inum )
559 __field( u32, len )
560 __field( u8, block_state )
561 __field( u64, rd_addr )
562 __field( u32, rd_free_clone )
563 __field( u32, rd_requested )
564 __field( u32, rd_reserved )
565 ),
566
567 TP_fast_assign(
568 __entry->dev = rgd->rd_gl->gl_name.ln_sbd->sd_vfs->s_dev;
569 __entry->start = block;
570 __entry->inum = ip->i_no_addr;
571 __entry->len = len;
572 __entry->block_state = block_state;
573 __entry->rd_addr = rgd->rd_addr;
574 __entry->rd_free_clone = rgd->rd_free_clone;
575 __entry->rd_requested = rgd->rd_requested;
576 __entry->rd_reserved = rgd->rd_reserved;
577 ),
578
579 TP_printk("%u,%u bmap %llu alloc %llu/%lu %s rg:%llu rf:%u rq:%u rr:%u",
580 MAJOR(__entry->dev), MINOR(__entry->dev),
581 (unsigned long long)__entry->inum,
582 (unsigned long long)__entry->start,
583 (unsigned long)__entry->len,
584 block_state_name(__entry->block_state),
585 (unsigned long long)__entry->rd_addr,
586 __entry->rd_free_clone,
587 __entry->rd_requested,
588 __entry->rd_reserved)
589);
590
591/* Keep track of multi-block reservations as they are allocated/freed */
592TRACE_EVENT(gfs2_rs,
593
594 TP_PROTO(const struct gfs2_blkreserv *rs, u8 func),
595
596 TP_ARGS(rs, func),
597
598 TP_STRUCT__entry(
599 __field( dev_t, dev )
600 __field( u64, rd_addr )
601 __field( u32, rd_free_clone )
602 __field( u32, rd_requested )
603 __field( u32, rd_reserved )
604 __field( u64, inum )
605 __field( u64, start )
606 __field( u32, requested )
607 __field( u32, reserved )
608 __field( u8, func )
609 ),
610
611 TP_fast_assign(
612 __entry->dev = rs->rs_rgd->rd_sbd->sd_vfs->s_dev;
613 __entry->rd_addr = rs->rs_rgd->rd_addr;
614 __entry->rd_free_clone = rs->rs_rgd->rd_free_clone;
615 __entry->rd_requested = rs->rs_rgd->rd_requested;
616 __entry->rd_reserved = rs->rs_rgd->rd_reserved;
617 __entry->inum = container_of(rs, struct gfs2_inode,
618 i_res)->i_no_addr;
619 __entry->start = rs->rs_start;
620 __entry->requested = rs->rs_requested;
621 __entry->reserved = rs->rs_reserved;
622 __entry->func = func;
623 ),
624
625 TP_printk("%u,%u bmap %llu resrv %llu rg:%llu rf:%u rq:%u rr:%u %s q:%u r:%u",
626 MAJOR(__entry->dev), MINOR(__entry->dev),
627 (unsigned long long)__entry->inum,
628 (unsigned long long)__entry->start,
629 (unsigned long long)__entry->rd_addr,
630 __entry->rd_free_clone,
631 __entry->rd_requested,
632 __entry->rd_reserved,
633 rs_func_name(__entry->func),
634 __entry->requested,
635 __entry->reserved)
636);
637
638#endif /* _TRACE_GFS2_H */
639
640/* This part must be outside protection */
641#undef TRACE_INCLUDE_PATH
642#define TRACE_INCLUDE_PATH .
643#define TRACE_INCLUDE_FILE trace_gfs2
644#include <trace/define_trace.h>
645