4 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
6 * This program is free software; you can redistribute it and/or modify
7 * it under the terms of the GNU General Public License version 2 only,
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13 * General Public License version 2 for more details (a copy is included
14 * in the LICENSE file that accompanied this code).
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21 * CA 95054 USA or visit www.sun.com if you need additional information or
27 * Copyright (c) 2003, 2010, Oracle and/or its affiliates. All rights reserved.
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30 * Copyright (c) 2011, Whamcloud, Inc.
33 * This file is part of Lustre, http://www.lustre.org/
34 * Lustre is a trademark of Sun Microsystems, Inc.
37 #define DEBUG_SUBSYSTEM S_LOG
39 #include <obd_class.h>
40 #include <lustre_log.h>
41 #include <libcfs/list.h>
42 #include "llog_internal.h"
44 static int str2logid(struct llog_logid *logid, char *str, int len)
46 char *start, *end, *endp;
54 if (start - str >= len - 1)
56 end = strchr(start, '#');
57 if (end == NULL || end == start)
61 logid->lgl_oid = simple_strtoull(start, &endp, 0);
66 if (start - str >= len - 1)
68 end = strchr(start, '#');
69 if (end == NULL || end == start)
73 logid->lgl_oseq = simple_strtoull(start, &endp, 0);
78 if (start - str >= len - 1)
80 logid->lgl_ogen = simple_strtoul(start, &endp, 16);
87 static int llog_check_cb(const struct lu_env *env, struct llog_handle *handle,
88 struct llog_rec_hdr *rec, void *data)
90 struct obd_ioctl_data *ioc_data = (struct obd_ioctl_data *)data;
91 static int l, remains, from, to;
94 int cur_index, rc = 0;
97 cur_index = rec->lrh_index;
99 if (ioc_data && (ioc_data->ioc_inllen1)) {
101 remains = ioc_data->ioc_inllen4 +
102 cfs_size_round(ioc_data->ioc_inllen1) +
103 cfs_size_round(ioc_data->ioc_inllen2) +
104 cfs_size_round(ioc_data->ioc_inllen3);
105 from = simple_strtol(ioc_data->ioc_inlbuf2, &endp, 0);
108 to = simple_strtol(ioc_data->ioc_inlbuf3, &endp, 0);
111 ioc_data->ioc_inllen1 = 0;
112 out = ioc_data->ioc_bulk;
113 if (cur_index < from)
115 if (to > 0 && cur_index > to)
116 RETURN(-LLOG_EEMPTY);
118 if (handle->lgh_hdr->llh_flags & LLOG_F_IS_CAT) {
119 struct llog_logid_rec *lir = (struct llog_logid_rec *)rec;
120 struct llog_handle *log_handle;
122 if (rec->lrh_type != LLOG_LOGID_MAGIC) {
123 l = snprintf(out, remains, "[index]: %05d [type]: "
124 "%02x [len]: %04d failed\n",
125 cur_index, rec->lrh_type,
128 if (handle->lgh_ctxt == NULL)
130 rc = llog_cat_id2handle(env, handle, &log_handle,
134 "cannot find log #"LPX64"#"LPX64"#%08x\n",
135 lir->lid_id.lgl_oid, lir->lid_id.lgl_oseq,
136 lir->lid_id.lgl_ogen);
139 rc = llog_process(env, log_handle, llog_check_cb, NULL, NULL);
140 llog_close(env, log_handle);
142 switch (rec->lrh_type) {
145 case MDS_SETATTR64_REC:
147 case LLOG_HDR_MAGIC: {
148 l = snprintf(out, remains, "[index]: %05d [type]: "
149 "%02x [len]: %04d ok\n",
150 cur_index, rec->lrh_type,
155 CERROR("no space to print log records\n");
156 RETURN(-LLOG_EEMPTY);
161 l = snprintf(out, remains, "[index]: %05d [type]: "
162 "%02x [len]: %04d failed\n",
163 cur_index, rec->lrh_type,
168 CERROR("no space to print log records\n");
169 RETURN(-LLOG_EEMPTY);
178 static int llog_print_cb(const struct lu_env *env, struct llog_handle *handle,
179 struct llog_rec_hdr *rec, void *data)
181 struct obd_ioctl_data *ioc_data = (struct obd_ioctl_data *)data;
182 static int l, remains, from, to;
188 if (ioc_data->ioc_inllen1) {
190 remains = ioc_data->ioc_inllen4 +
191 cfs_size_round(ioc_data->ioc_inllen1) +
192 cfs_size_round(ioc_data->ioc_inllen2) +
193 cfs_size_round(ioc_data->ioc_inllen3);
194 from = simple_strtol(ioc_data->ioc_inlbuf2, &endp, 0);
197 to = simple_strtol(ioc_data->ioc_inlbuf3, &endp, 0);
200 out = ioc_data->ioc_bulk;
201 ioc_data->ioc_inllen1 = 0;
204 cur_index = rec->lrh_index;
205 if (cur_index < from)
207 if (to > 0 && cur_index > to)
208 RETURN(-LLOG_EEMPTY);
210 if (handle->lgh_hdr->llh_flags & LLOG_F_IS_CAT) {
211 struct llog_logid_rec *lir = (struct llog_logid_rec *)rec;
213 if (rec->lrh_type != LLOG_LOGID_MAGIC) {
214 CERROR("invalid record in catalog\n");
218 l = snprintf(out, remains,
219 "[index]: %05d [logid]: #"LPX64"#"LPX64"#%08x\n",
220 cur_index, lir->lid_id.lgl_oid,
221 lir->lid_id.lgl_oseq, lir->lid_id.lgl_ogen);
223 l = snprintf(out, remains,
224 "[index]: %05d [type]: %02x [len]: %04d\n",
225 cur_index, rec->lrh_type,
231 CERROR("not enough space for print log records\n");
232 RETURN(-LLOG_EEMPTY);
237 static int llog_remove_log(const struct lu_env *env, struct llog_handle *cat,
238 struct llog_logid *logid)
240 struct llog_handle *log;
245 rc = llog_cat_id2handle(env, cat, &log, logid);
247 CDEBUG(D_IOCTL, "cannot find log #"LPX64"#"LPX64"#%08x\n",
248 logid->lgl_oid, logid->lgl_oseq, logid->lgl_ogen);
249 GOTO(out, rc = -ENOENT);
252 index = log->u.phd.phd_cookie.lgc_index;
254 rc = llog_destroy(env, log);
256 CDEBUG(D_IOCTL, "cannot destroy log\n");
259 cfs_down_write(&cat->lgh_lock);
260 if (cat->u.chd.chd_current_log == log)
261 cat->u.chd.chd_current_log = NULL;
262 cfs_up_write(&cat->lgh_lock);
263 llog_cat_set_first_idx(cat, index);
264 rc = llog_cancel_rec(env, cat, index);
266 llog_close(env, log);
271 static int llog_delete_cb(const struct lu_env *env, struct llog_handle *handle,
272 struct llog_rec_hdr *rec, void *data)
274 struct llog_logid_rec *lir = (struct llog_logid_rec *)rec;
278 if (rec->lrh_type != LLOG_LOGID_MAGIC)
280 rc = llog_remove_log(env, handle, &lir->lid_id);
286 int llog_ioctl(struct llog_ctxt *ctxt, int cmd, struct obd_ioctl_data *data)
288 struct llog_logid logid;
290 struct llog_handle *handle = NULL;
293 if (*data->ioc_inlbuf1 == '#') {
294 err = str2logid(&logid, data->ioc_inlbuf1, data->ioc_inllen1);
297 err = llog_open(NULL, ctxt, &handle, &logid, NULL,
301 } else if (*data->ioc_inlbuf1 == '$') {
302 char *name = data->ioc_inlbuf1 + 1;
304 err = llog_open(NULL, ctxt, &handle, NULL, name,
309 GOTO(out, err = -EINVAL);
312 err = llog_init_handle(NULL, handle, 0, NULL);
314 GOTO(out_close, err = -ENOENT);
317 case OBD_IOC_LLOG_INFO: {
319 int remains = data->ioc_inllen2 +
320 cfs_size_round(data->ioc_inllen1);
321 char *out = data->ioc_bulk;
323 l = snprintf(out, remains,
324 "logid: #"LPX64"#"LPX64"#%08x\n"
326 "records count: %d\n"
328 handle->lgh_id.lgl_oid, handle->lgh_id.lgl_oseq,
329 handle->lgh_id.lgl_ogen,
330 handle->lgh_hdr->llh_flags,
331 handle->lgh_hdr->llh_flags &
332 LLOG_F_IS_CAT ? "cat" : "plain",
333 handle->lgh_hdr->llh_count,
334 handle->lgh_last_idx);
338 CERROR("not enough space for log header info\n");
340 GOTO(out_close, err);
342 case OBD_IOC_LLOG_CHECK: {
343 LASSERT(data->ioc_inllen1);
344 err = llog_process(NULL, handle, llog_check_cb, data, NULL);
345 if (err == -LLOG_EEMPTY)
347 GOTO(out_close, err);
350 case OBD_IOC_LLOG_PRINT: {
351 LASSERT(data->ioc_inllen1);
352 err = llog_process(NULL, handle, class_config_dump_handler,
354 if (err == -LLOG_EEMPTY)
357 err = llog_process(NULL, handle, llog_print_cb, data,
360 GOTO(out_close, err);
362 case OBD_IOC_LLOG_CANCEL: {
363 struct llog_cookie cookie;
364 struct llog_logid plain;
367 cookie.lgc_index = simple_strtoul(data->ioc_inlbuf3, &endp, 0);
369 GOTO(out_close, err = -EINVAL);
371 if (handle->lgh_hdr->llh_flags & LLOG_F_IS_PLAIN) {
372 err = llog_cancel_rec(NULL, handle, cookie.lgc_index);
373 GOTO(out_close, err);
374 } else if (!(handle->lgh_hdr->llh_flags & LLOG_F_IS_CAT)) {
375 GOTO(out_close, err = -EINVAL);
378 if (data->ioc_inlbuf2 == NULL) /* catalog but no logid */
379 GOTO(out_close, err = -ENOTTY);
381 err = str2logid(&plain, data->ioc_inlbuf2, data->ioc_inllen2);
383 GOTO(out_close, err);
384 cookie.lgc_lgl = plain;
385 err = llog_cat_cancel_records(NULL, handle, 1, &cookie);
387 GOTO(out_close, err);
390 case OBD_IOC_LLOG_REMOVE: {
391 struct llog_logid plain;
393 if (handle->lgh_hdr->llh_flags & LLOG_F_IS_PLAIN) {
394 err = llog_destroy(NULL, handle);
395 GOTO(out_close, err);
396 } else if (!(handle->lgh_hdr->llh_flags & LLOG_F_IS_CAT)) {
397 GOTO(out_close, err = -EINVAL);
400 if (data->ioc_inlbuf2) {
401 /*remove indicate log from the catalog*/
402 err = str2logid(&plain, data->ioc_inlbuf2,
405 GOTO(out_close, err);
406 err = llog_remove_log(NULL, handle, &plain);
408 /* remove all the log of the catalog */
409 err = llog_process(NULL, handle, llog_delete_cb, NULL,
412 GOTO(out_close, err);
417 CERROR("%s: Unknown ioctl cmd %#x\n",
418 ctxt->loc_obd->obd_name, cmd);
419 GOTO(out_close, err = -ENOTTY);
423 if (handle->lgh_hdr &&
424 handle->lgh_hdr->llh_flags & LLOG_F_IS_CAT)
425 llog_cat_close(NULL, handle);
427 llog_close(NULL, handle);
431 EXPORT_SYMBOL(llog_ioctl);
433 int llog_catalog_list(struct obd_device *obd, int count,
434 struct obd_ioctl_data *data)
437 struct llog_catid *idarray;
438 struct llog_logid *id;
439 char name[32] = CATLIST;
441 int l, remains, rc = 0;
444 size = sizeof(*idarray) * count;
446 OBD_ALLOC_LARGE(idarray, size);
450 cfs_mutex_lock(&obd->obd_olg.olg_cat_processing);
451 rc = llog_get_cat_list(obd, name, 0, count, idarray);
455 out = data->ioc_bulk;
456 remains = data->ioc_inllen1;
457 for (i = 0; i < count; i++) {
458 id = &idarray[i].lci_logid;
459 l = snprintf(out, remains,
460 "catalog log: #"LPX64"#"LPX64"#%08x\n",
461 id->lgl_oid, id->lgl_oseq, id->lgl_ogen);
465 CWARN("not enough memory for catlog list\n");
470 /* release semaphore */
471 cfs_mutex_unlock(&obd->obd_olg.olg_cat_processing);
473 OBD_FREE_LARGE(idarray, size);
477 EXPORT_SYMBOL(llog_catalog_list);