zdb_il.c revision 219089 
1/*
2 * CDDL HEADER START
3 *
4 * The contents of this file are subject to the terms of the
5 * Common Development and Distribution License (the "License").
6 * You may not use this file except in compliance with the License.
7 *
8 * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
9 * or http://www.opensolaris.org/os/licensing.
10 * See the License for the specific language governing permissions
11 * and limitations under the License.
12 *
13 * When distributing Covered Code, include this CDDL HEADER in each
14 * file and include the License file at usr/src/OPENSOLARIS.LICENSE.
15 * If applicable, add the following below this CDDL HEADER, with the
16 * fields enclosed by brackets "[]" replaced with your own identifying
17 * information: Portions Copyright [yyyy] [name of copyright owner]
18 *
19 * CDDL HEADER END
20 */
21/*
22 * Copyright 2009 Sun Microsystems, Inc.  All rights reserved.
23 * Use is subject to license terms.
24 */
25
26/*
27 * Print intent log header and statistics.
28 */
29
30#include <stdio.h>
31#include <stdlib.h>
32#include <ctype.h>
33#include <sys/zfs_context.h>
34#include <sys/spa.h>
35#include <sys/dmu.h>
36#include <sys/stat.h>
37#include <sys/resource.h>
38#include <sys/zil.h>
39#include <sys/zil_impl.h>
40
41extern uint8_t dump_opt[256];
42
43static char prefix[4] = "\t\t\t";
44
45static void
46print_log_bp(const blkptr_t *bp, const char *prefix)
47{
48	char blkbuf[BP_SPRINTF_LEN];
49
50	sprintf_blkptr(blkbuf, bp);
51	(void) printf("%s%s\n", prefix, blkbuf);
52}
53
54/* ARGSUSED */
55static void
56zil_prt_rec_create(zilog_t *zilog, int txtype, lr_create_t *lr)
57{
58	time_t crtime = lr->lr_crtime[0];
59	char *name, *link;
60	lr_attr_t *lrattr;
61
62	name = (char *)(lr + 1);
63
64	if (lr->lr_common.lrc_txtype == TX_CREATE_ATTR ||
65	    lr->lr_common.lrc_txtype == TX_MKDIR_ATTR) {
66		lrattr = (lr_attr_t *)(lr + 1);
67		name += ZIL_XVAT_SIZE(lrattr->lr_attr_masksize);
68	}
69
70	if (txtype == TX_SYMLINK) {
71		link = name + strlen(name) + 1;
72		(void) printf("%s%s -> %s\n", prefix, name, link);
73	} else if (txtype != TX_MKXATTR) {
74		(void) printf("%s%s\n", prefix, name);
75	}
76
77	(void) printf("%s%s", prefix, ctime(&crtime));
78	(void) printf("%sdoid %llu, foid %llu, mode %llo\n", prefix,
79	    (u_longlong_t)lr->lr_doid, (u_longlong_t)lr->lr_foid,
80	    (longlong_t)lr->lr_mode);
81	(void) printf("%suid %llu, gid %llu, gen %llu, rdev 0x%llx\n", prefix,
82	    (u_longlong_t)lr->lr_uid, (u_longlong_t)lr->lr_gid,
83	    (u_longlong_t)lr->lr_gen, (u_longlong_t)lr->lr_rdev);
84}
85
86/* ARGSUSED */
87static void
88zil_prt_rec_remove(zilog_t *zilog, int txtype, lr_remove_t *lr)
89{
90	(void) printf("%sdoid %llu, name %s\n", prefix,
91	    (u_longlong_t)lr->lr_doid, (char *)(lr + 1));
92}
93
94/* ARGSUSED */
95static void
96zil_prt_rec_link(zilog_t *zilog, int txtype, lr_link_t *lr)
97{
98	(void) printf("%sdoid %llu, link_obj %llu, name %s\n", prefix,
99	    (u_longlong_t)lr->lr_doid, (u_longlong_t)lr->lr_link_obj,
100	    (char *)(lr + 1));
101}
102
103/* ARGSUSED */
104static void
105zil_prt_rec_rename(zilog_t *zilog, int txtype, lr_rename_t *lr)
106{
107	char *snm = (char *)(lr + 1);
108	char *tnm = snm + strlen(snm) + 1;
109
110	(void) printf("%ssdoid %llu, tdoid %llu\n", prefix,
111	    (u_longlong_t)lr->lr_sdoid, (u_longlong_t)lr->lr_tdoid);
112	(void) printf("%ssrc %s tgt %s\n", prefix, snm, tnm);
113}
114
115/* ARGSUSED */
116static void
117zil_prt_rec_write(zilog_t *zilog, int txtype, lr_write_t *lr)
118{
119	char *data, *dlimit;
120	blkptr_t *bp = &lr->lr_blkptr;
121	zbookmark_t zb;
122	char buf[SPA_MAXBLOCKSIZE];
123	int verbose = MAX(dump_opt['d'], dump_opt['i']);
124	int error;
125
126	(void) printf("%sfoid %llu, offset %llx, length %llx\n", prefix,
127	    (u_longlong_t)lr->lr_foid, (u_longlong_t)lr->lr_offset,
128	    (u_longlong_t)lr->lr_length);
129
130	if (txtype == TX_WRITE2 || verbose < 5)
131		return;
132
133	if (lr->lr_common.lrc_reclen == sizeof (lr_write_t)) {
134		(void) printf("%shas blkptr, %s\n", prefix,
135		    bp->blk_birth >= spa_first_txg(zilog->zl_spa) ?
136		    "will claim" : "won't claim");
137		print_log_bp(bp, prefix);
138
139		if (BP_IS_HOLE(bp)) {
140			(void) printf("\t\t\tLSIZE 0x%llx\n",
141			    (u_longlong_t)BP_GET_LSIZE(bp));
142		}
143		if (bp->blk_birth == 0) {
144			bzero(buf, sizeof (buf));
145			(void) printf("%s<hole>\n", prefix);
146			return;
147		}
148		if (bp->blk_birth < zilog->zl_header->zh_claim_txg) {
149			(void) printf("%s<block already committed>\n", prefix);
150			return;
151		}
152
153		SET_BOOKMARK(&zb, dmu_objset_id(zilog->zl_os),
154		    lr->lr_foid, ZB_ZIL_LEVEL,
155		    lr->lr_offset / BP_GET_LSIZE(bp));
156
157		error = zio_wait(zio_read(NULL, zilog->zl_spa,
158		    bp, buf, BP_GET_LSIZE(bp), NULL, NULL,
159		    ZIO_PRIORITY_SYNC_READ, ZIO_FLAG_CANFAIL, &zb));
160		if (error)
161			return;
162		data = buf;
163	} else {
164		data = (char *)(lr + 1);
165	}
166
167	dlimit = data + MIN(lr->lr_length,
168	    (verbose < 6 ? 20 : SPA_MAXBLOCKSIZE));
169
170	(void) printf("%s", prefix);
171	while (data < dlimit) {
172		if (isprint(*data))
173			(void) printf("%c ", *data);
174		else
175			(void) printf("%2X", *data);
176		data++;
177	}
178	(void) printf("\n");
179}
180
181/* ARGSUSED */
182static void
183zil_prt_rec_truncate(zilog_t *zilog, int txtype, lr_truncate_t *lr)
184{
185	(void) printf("%sfoid %llu, offset 0x%llx, length 0x%llx\n", prefix,
186	    (u_longlong_t)lr->lr_foid, (longlong_t)lr->lr_offset,
187	    (u_longlong_t)lr->lr_length);
188}
189
190/* ARGSUSED */
191static void
192zil_prt_rec_setattr(zilog_t *zilog, int txtype, lr_setattr_t *lr)
193{
194	time_t atime = (time_t)lr->lr_atime[0];
195	time_t mtime = (time_t)lr->lr_mtime[0];
196
197	(void) printf("%sfoid %llu, mask 0x%llx\n", prefix,
198	    (u_longlong_t)lr->lr_foid, (u_longlong_t)lr->lr_mask);
199
200	if (lr->lr_mask & AT_MODE) {
201		(void) printf("%sAT_MODE  %llo\n", prefix,
202		    (longlong_t)lr->lr_mode);
203	}
204
205	if (lr->lr_mask & AT_UID) {
206		(void) printf("%sAT_UID   %llu\n", prefix,
207		    (u_longlong_t)lr->lr_uid);
208	}
209
210	if (lr->lr_mask & AT_GID) {
211		(void) printf("%sAT_GID   %llu\n", prefix,
212		    (u_longlong_t)lr->lr_gid);
213	}
214
215	if (lr->lr_mask & AT_SIZE) {
216		(void) printf("%sAT_SIZE  %llu\n", prefix,
217		    (u_longlong_t)lr->lr_size);
218	}
219
220	if (lr->lr_mask & AT_ATIME) {
221		(void) printf("%sAT_ATIME %llu.%09llu %s", prefix,
222		    (u_longlong_t)lr->lr_atime[0],
223		    (u_longlong_t)lr->lr_atime[1],
224		    ctime(&atime));
225	}
226
227	if (lr->lr_mask & AT_MTIME) {
228		(void) printf("%sAT_MTIME %llu.%09llu %s", prefix,
229		    (u_longlong_t)lr->lr_mtime[0],
230		    (u_longlong_t)lr->lr_mtime[1],
231		    ctime(&mtime));
232	}
233}
234
235/* ARGSUSED */
236static void
237zil_prt_rec_acl(zilog_t *zilog, int txtype, lr_acl_t *lr)
238{
239	(void) printf("%sfoid %llu, aclcnt %llu\n", prefix,
240	    (u_longlong_t)lr->lr_foid, (u_longlong_t)lr->lr_aclcnt);
241}
242
243typedef void (*zil_prt_rec_func_t)();
244typedef struct zil_rec_info {
245	zil_prt_rec_func_t	zri_print;
246	char			*zri_name;
247	uint64_t		zri_count;
248} zil_rec_info_t;
249
250static zil_rec_info_t zil_rec_info[TX_MAX_TYPE] = {
251	{	NULL,			"Total              " },
252	{	zil_prt_rec_create,	"TX_CREATE          " },
253	{	zil_prt_rec_create,	"TX_MKDIR           " },
254	{	zil_prt_rec_create,	"TX_MKXATTR         " },
255	{	zil_prt_rec_create,	"TX_SYMLINK         " },
256	{	zil_prt_rec_remove,	"TX_REMOVE          " },
257	{	zil_prt_rec_remove,	"TX_RMDIR           " },
258	{	zil_prt_rec_link,	"TX_LINK            " },
259	{	zil_prt_rec_rename,	"TX_RENAME          " },
260	{	zil_prt_rec_write,	"TX_WRITE           " },
261	{	zil_prt_rec_truncate,	"TX_TRUNCATE        " },
262	{	zil_prt_rec_setattr,	"TX_SETATTR         " },
263	{	zil_prt_rec_acl,	"TX_ACL_V0          " },
264	{	zil_prt_rec_acl,	"TX_ACL_ACL         " },
265	{	zil_prt_rec_create,	"TX_CREATE_ACL      " },
266	{	zil_prt_rec_create,	"TX_CREATE_ATTR     " },
267	{	zil_prt_rec_create,	"TX_CREATE_ACL_ATTR " },
268	{	zil_prt_rec_create,	"TX_MKDIR_ACL       " },
269	{	zil_prt_rec_create,	"TX_MKDIR_ATTR      " },
270	{	zil_prt_rec_create,	"TX_MKDIR_ACL_ATTR  " },
271	{	zil_prt_rec_write,	"TX_WRITE2          " },
272};
273
274/* ARGSUSED */
275static int
276print_log_record(zilog_t *zilog, lr_t *lr, void *arg, uint64_t claim_txg)
277{
278	int txtype;
279	int verbose = MAX(dump_opt['d'], dump_opt['i']);
280
281	/* reduce size of txtype to strip off TX_CI bit */
282	txtype = lr->lrc_txtype;
283
284	ASSERT(txtype != 0 && (uint_t)txtype < TX_MAX_TYPE);
285	ASSERT(lr->lrc_txg);
286
287	(void) printf("\t\t%s%s len %6llu, txg %llu, seq %llu\n",
288	    (lr->lrc_txtype & TX_CI) ? "CI-" : "",
289	    zil_rec_info[txtype].zri_name,
290	    (u_longlong_t)lr->lrc_reclen,
291	    (u_longlong_t)lr->lrc_txg,
292	    (u_longlong_t)lr->lrc_seq);
293
294	if (txtype && verbose >= 3)
295		zil_rec_info[txtype].zri_print(zilog, txtype, lr);
296
297	zil_rec_info[txtype].zri_count++;
298	zil_rec_info[0].zri_count++;
299
300	return (0);
301}
302
303/* ARGSUSED */
304static int
305print_log_block(zilog_t *zilog, blkptr_t *bp, void *arg, uint64_t claim_txg)
306{
307	char blkbuf[BP_SPRINTF_LEN + 10];
308	int verbose = MAX(dump_opt['d'], dump_opt['i']);
309	char *claim;
310
311	if (verbose <= 3)
312		return (0);
313
314	if (verbose >= 5) {
315		(void) strcpy(blkbuf, ", ");
316		sprintf_blkptr(blkbuf + strlen(blkbuf), bp);
317	} else {
318		blkbuf[0] = '\0';
319	}
320
321	if (claim_txg != 0)
322		claim = "already claimed";
323	else if (bp->blk_birth >= spa_first_txg(zilog->zl_spa))
324		claim = "will claim";
325	else
326		claim = "won't claim";
327
328	(void) printf("\tBlock seqno %llu, %s%s\n",
329	    (u_longlong_t)bp->blk_cksum.zc_word[ZIL_ZC_SEQ], claim, blkbuf);
330
331	return (0);
332}
333
334static void
335print_log_stats(int verbose)
336{
337	int i, w, p10;
338
339	if (verbose > 3)
340		(void) printf("\n");
341
342	if (zil_rec_info[0].zri_count == 0)
343		return;
344
345	for (w = 1, p10 = 10; zil_rec_info[0].zri_count >= p10; p10 *= 10)
346		w++;
347
348	for (i = 0; i < TX_MAX_TYPE; i++)
349		if (zil_rec_info[i].zri_count || verbose >= 3)
350			(void) printf("\t\t%s %*llu\n",
351			    zil_rec_info[i].zri_name, w,
352			    (u_longlong_t)zil_rec_info[i].zri_count);
353	(void) printf("\n");
354}
355
356/* ARGSUSED */
357void
358dump_intent_log(zilog_t *zilog)
359{
360	const zil_header_t *zh = zilog->zl_header;
361	int verbose = MAX(dump_opt['d'], dump_opt['i']);
362	int i;
363
364	if (zh->zh_log.blk_birth == 0 || verbose < 1)
365		return;
366
367	(void) printf("\n    ZIL header: claim_txg %llu, "
368	    "claim_blk_seq %llu, claim_lr_seq %llu",
369	    (u_longlong_t)zh->zh_claim_txg,
370	    (u_longlong_t)zh->zh_claim_blk_seq,
371	    (u_longlong_t)zh->zh_claim_lr_seq);
372	(void) printf(" replay_seq %llu, flags 0x%llx\n",
373	    (u_longlong_t)zh->zh_replay_seq, (u_longlong_t)zh->zh_flags);
374
375	for (i = 0; i < TX_MAX_TYPE; i++)
376		zil_rec_info[i].zri_count = 0;
377
378	if (verbose >= 2) {
379		(void) printf("\n");
380		(void) zil_parse(zilog, print_log_block, print_log_record, NULL,
381		    zh->zh_claim_txg);
382		print_log_stats(verbose);
383	}
384}
385