zdb_il.c revision 177698 
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 2006 Sun Microsystems, Inc.  All rights reserved.
23 * Use is subject to license terms.
24 */
25
26#pragma ident	"%Z%%M%	%I%	%E% SMI"
27
28/*
29 * Print intent log header and statistics.
30 */
31
32#include <stdio.h>
33#include <stdlib.h>
34#include <ctype.h>
35#include <sys/zfs_context.h>
36#include <sys/spa.h>
37#include <sys/dmu.h>
38#include <sys/stat.h>
39#include <sys/resource.h>
40#include <sys/zil.h>
41#include <sys/zil_impl.h>
42
43extern uint8_t dump_opt[256];
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_SPRINTF_LEN, 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 = (char *)(lr + 1);
60	char *link = name + strlen(name) + 1;
61
62	if (txtype == TX_SYMLINK)
63		(void) printf("\t\t\t%s -> %s\n", name, link);
64	else
65		(void) printf("\t\t\t%s\n", name);
66
67	(void) printf("\t\t\t%s", ctime(&crtime));
68	(void) printf("\t\t\tdoid %llu, foid %llu, mode %llo\n",
69	    (u_longlong_t)lr->lr_doid, (u_longlong_t)lr->lr_foid,
70	    (longlong_t)lr->lr_mode);
71	(void) printf("\t\t\tuid %llu, gid %llu, gen %llu, rdev 0x%llx\n",
72	    (u_longlong_t)lr->lr_uid, (u_longlong_t)lr->lr_gid,
73	    (u_longlong_t)lr->lr_gen, (u_longlong_t)lr->lr_rdev);
74}
75
76/* ARGSUSED */
77static void
78zil_prt_rec_remove(zilog_t *zilog, int txtype, lr_remove_t *lr)
79{
80	(void) printf("\t\t\tdoid %llu, name %s\n",
81	    (u_longlong_t)lr->lr_doid, (char *)(lr + 1));
82}
83
84/* ARGSUSED */
85static void
86zil_prt_rec_link(zilog_t *zilog, int txtype, lr_link_t *lr)
87{
88	(void) printf("\t\t\tdoid %llu, link_obj %llu, name %s\n",
89	    (u_longlong_t)lr->lr_doid, (u_longlong_t)lr->lr_link_obj,
90	    (char *)(lr + 1));
91}
92
93/* ARGSUSED */
94static void
95zil_prt_rec_rename(zilog_t *zilog, int txtype, lr_rename_t *lr)
96{
97	char *snm = (char *)(lr + 1);
98	char *tnm = snm + strlen(snm) + 1;
99
100	(void) printf("\t\t\tsdoid %llu, tdoid %llu\n",
101	    (u_longlong_t)lr->lr_sdoid, (u_longlong_t)lr->lr_tdoid);
102	(void) printf("\t\t\tsrc %s tgt %s\n", snm, tnm);
103}
104
105/* ARGSUSED */
106static void
107zil_prt_rec_write(zilog_t *zilog, int txtype, lr_write_t *lr)
108{
109	char *data, *dlimit;
110	blkptr_t *bp = &lr->lr_blkptr;
111	char buf[SPA_MAXBLOCKSIZE];
112	int verbose = MAX(dump_opt['d'], dump_opt['i']);
113	int error;
114
115	(void) printf("\t\t\tfoid %llu, offset 0x%llx,"
116	    " length 0x%llx, blkoff 0x%llx\n",
117	    (u_longlong_t)lr->lr_foid, (longlong_t)lr->lr_offset,
118	    (u_longlong_t)lr->lr_length, (u_longlong_t)lr->lr_blkoff);
119
120	if (verbose < 5)
121		return;
122
123	if (lr->lr_common.lrc_reclen == sizeof (lr_write_t)) {
124		(void) printf("\t\t\thas blkptr, %s\n",
125		    bp->blk_birth >= spa_first_txg(zilog->zl_spa) ?
126		    "will claim" : "won't claim");
127		print_log_bp(bp, "\t\t\t");
128		if (bp->blk_birth == 0) {
129			bzero(buf, sizeof (buf));
130		} else {
131			zbookmark_t zb;
132
133			ASSERT3U(bp->blk_cksum.zc_word[ZIL_ZC_OBJSET], ==,
134			    dmu_objset_id(zilog->zl_os));
135
136			zb.zb_objset = bp->blk_cksum.zc_word[ZIL_ZC_OBJSET];
137			zb.zb_object = 0;
138			zb.zb_level = -1;
139			zb.zb_blkid = bp->blk_cksum.zc_word[ZIL_ZC_SEQ];
140
141			error = zio_wait(zio_read(NULL, zilog->zl_spa,
142			    bp, buf, BP_GET_LSIZE(bp), NULL, NULL,
143			    ZIO_PRIORITY_SYNC_READ, ZIO_FLAG_CANFAIL, &zb));
144			if (error)
145				return;
146		}
147		data = buf + lr->lr_blkoff;
148	} else {
149		data = (char *)(lr + 1);
150	}
151
152	dlimit = data + MIN(lr->lr_length,
153	    (verbose < 6 ? 20 : SPA_MAXBLOCKSIZE));
154
155	(void) printf("\t\t\t");
156	while (data < dlimit) {
157		if (isprint(*data))
158			(void) printf("%c ", *data);
159		else
160			(void) printf("%2X", *data);
161		data++;
162	}
163	(void) printf("\n");
164}
165
166/* ARGSUSED */
167static void
168zil_prt_rec_truncate(zilog_t *zilog, int txtype, lr_truncate_t *lr)
169{
170	(void) printf("\t\t\tfoid %llu, offset 0x%llx, length 0x%llx\n",
171	    (u_longlong_t)lr->lr_foid, (longlong_t)lr->lr_offset,
172	    (u_longlong_t)lr->lr_length);
173}
174
175/* ARGSUSED */
176static void
177zil_prt_rec_setattr(zilog_t *zilog, int txtype, lr_setattr_t *lr)
178{
179	time_t atime = (time_t)lr->lr_atime[0];
180	time_t mtime = (time_t)lr->lr_mtime[0];
181
182	(void) printf("\t\t\tfoid %llu, mask 0x%llx\n",
183	    (u_longlong_t)lr->lr_foid, (u_longlong_t)lr->lr_mask);
184
185	if (lr->lr_mask & AT_MODE) {
186		(void) printf("\t\t\tAT_MODE  %llo\n",
187		    (longlong_t)lr->lr_mode);
188	}
189
190	if (lr->lr_mask & AT_UID) {
191		(void) printf("\t\t\tAT_UID   %llu\n",
192		    (u_longlong_t)lr->lr_uid);
193	}
194
195	if (lr->lr_mask & AT_GID) {
196		(void) printf("\t\t\tAT_GID   %llu\n",
197		    (u_longlong_t)lr->lr_gid);
198	}
199
200	if (lr->lr_mask & AT_SIZE) {
201		(void) printf("\t\t\tAT_SIZE  %llu\n",
202		    (u_longlong_t)lr->lr_size);
203	}
204
205	if (lr->lr_mask & AT_ATIME) {
206		(void) printf("\t\t\tAT_ATIME %llu.%09llu %s",
207		    (u_longlong_t)lr->lr_atime[0],
208		    (u_longlong_t)lr->lr_atime[1],
209		    ctime(&atime));
210	}
211
212	if (lr->lr_mask & AT_MTIME) {
213		(void) printf("\t\t\tAT_MTIME %llu.%09llu %s",
214		    (u_longlong_t)lr->lr_mtime[0],
215		    (u_longlong_t)lr->lr_mtime[1],
216		    ctime(&mtime));
217	}
218}
219
220/* ARGSUSED */
221static void
222zil_prt_rec_acl(zilog_t *zilog, int txtype, lr_acl_t *lr)
223{
224	(void) printf("\t\t\tfoid %llu, aclcnt %llu\n",
225	    (u_longlong_t)lr->lr_foid, (u_longlong_t)lr->lr_aclcnt);
226}
227
228typedef void (*zil_prt_rec_func_t)();
229typedef struct zil_rec_info {
230	zil_prt_rec_func_t	zri_print;
231	char			*zri_name;
232	uint64_t		zri_count;
233} zil_rec_info_t;
234
235static zil_rec_info_t zil_rec_info[TX_MAX_TYPE] = {
236	{	NULL,			"Total      "	},
237	{	zil_prt_rec_create,	"TX_CREATE  "	},
238	{	zil_prt_rec_create,	"TX_MKDIR   "	},
239	{	zil_prt_rec_create,	"TX_MKXATTR "	},
240	{	zil_prt_rec_create,	"TX_SYMLINK "	},
241	{	zil_prt_rec_remove,	"TX_REMOVE  "	},
242	{	zil_prt_rec_remove,	"TX_RMDIR   "	},
243	{	zil_prt_rec_link,	"TX_LINK    "	},
244	{	zil_prt_rec_rename,	"TX_RENAME  "	},
245	{	zil_prt_rec_write,	"TX_WRITE   "	},
246	{	zil_prt_rec_truncate,	"TX_TRUNCATE"	},
247	{	zil_prt_rec_setattr,	"TX_SETATTR "	},
248	{	zil_prt_rec_acl,	"TX_ACL     "	},
249};
250
251/* ARGSUSED */
252static void
253print_log_record(zilog_t *zilog, lr_t *lr, void *arg, uint64_t claim_txg)
254{
255	int txtype;
256	int verbose = MAX(dump_opt['d'], dump_opt['i']);
257
258	txtype = lr->lrc_txtype;
259
260	ASSERT(txtype != 0 && (uint_t)txtype < TX_MAX_TYPE);
261	ASSERT(lr->lrc_txg);
262
263	(void) printf("\t\t%s len %6llu, txg %llu, seq %llu\n",
264	    zil_rec_info[txtype].zri_name,
265	    (u_longlong_t)lr->lrc_reclen,
266	    (u_longlong_t)lr->lrc_txg,
267	    (u_longlong_t)lr->lrc_seq);
268
269	if (txtype && verbose >= 3)
270		zil_rec_info[txtype].zri_print(zilog, txtype, lr);
271
272	zil_rec_info[txtype].zri_count++;
273	zil_rec_info[0].zri_count++;
274}
275
276/* ARGSUSED */
277static void
278print_log_block(zilog_t *zilog, blkptr_t *bp, void *arg, uint64_t claim_txg)
279{
280	char blkbuf[BP_SPRINTF_LEN];
281	int verbose = MAX(dump_opt['d'], dump_opt['i']);
282	char *claim;
283
284	if (verbose <= 3)
285		return;
286
287	if (verbose >= 5) {
288		(void) strcpy(blkbuf, ", ");
289		sprintf_blkptr(blkbuf + strlen(blkbuf),
290		    BP_SPRINTF_LEN - strlen(blkbuf), bp);
291	} else {
292		blkbuf[0] = '\0';
293	}
294
295	if (claim_txg != 0)
296		claim = "already claimed";
297	else if (bp->blk_birth >= spa_first_txg(zilog->zl_spa))
298		claim = "will claim";
299	else
300		claim = "won't claim";
301
302	(void) printf("\tBlock seqno %llu, %s%s\n",
303	    (u_longlong_t)bp->blk_cksum.zc_word[ZIL_ZC_SEQ], claim, blkbuf);
304}
305
306static void
307print_log_stats(int verbose)
308{
309	int i, w, p10;
310
311	if (verbose > 3)
312		(void) printf("\n");
313
314	if (zil_rec_info[0].zri_count == 0)
315		return;
316
317	for (w = 1, p10 = 10; zil_rec_info[0].zri_count >= p10; p10 *= 10)
318		w++;
319
320	for (i = 0; i < TX_MAX_TYPE; i++)
321		if (zil_rec_info[i].zri_count || verbose >= 3)
322			(void) printf("\t\t%s %*llu\n",
323			    zil_rec_info[i].zri_name, w,
324			    (u_longlong_t)zil_rec_info[i].zri_count);
325	(void) printf("\n");
326}
327
328/* ARGSUSED */
329void
330dump_intent_log(zilog_t *zilog)
331{
332	const zil_header_t *zh = zilog->zl_header;
333	int verbose = MAX(dump_opt['d'], dump_opt['i']);
334	int i;
335
336	if (zh->zh_log.blk_birth == 0 || verbose < 2)
337		return;
338
339	(void) printf("\n    ZIL header: claim_txg %llu, seq %llu\n",
340	    (u_longlong_t)zh->zh_claim_txg, (u_longlong_t)zh->zh_replay_seq);
341
342	if (verbose >= 4)
343		print_log_bp(&zh->zh_log, "\n\tfirst block: ");
344
345	for (i = 0; i < TX_MAX_TYPE; i++)
346		zil_rec_info[i].zri_count = 0;
347
348	if (verbose >= 2) {
349		(void) printf("\n");
350		(void) zil_parse(zilog, print_log_block, print_log_record, NULL,
351		    zh->zh_claim_txg);
352		print_log_stats(verbose);
353	}
354}
355