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(struct llog_handle *handle, struct llog_rec_hdr *rec,
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(handle, &log_handle, &lir->lid_id);
133 "cannot find log #"LPX64"#"LPX64"#%08x\n",
134 lir->lid_id.lgl_oid, lir->lid_id.lgl_oseq,
135 lir->lid_id.lgl_ogen);
138 rc = llog_process(log_handle, llog_check_cb, NULL, NULL);
139 llog_close(log_handle);
141 switch (rec->lrh_type) {
145 case MDS_SETATTR_REC:
146 case MDS_SETATTR64_REC:
148 case LLOG_HDR_MAGIC: {
149 l = snprintf(out, remains, "[index]: %05d [type]: "
150 "%02x [len]: %04d ok\n",
151 cur_index, rec->lrh_type,
156 CERROR("no space to print log records\n");
157 RETURN(-LLOG_EEMPTY);
162 l = snprintf(out, remains, "[index]: %05d [type]: "
163 "%02x [len]: %04d failed\n",
164 cur_index, rec->lrh_type,
169 CERROR("no space to print log records\n");
170 RETURN(-LLOG_EEMPTY);
179 static int llog_print_cb(struct llog_handle *handle, struct llog_rec_hdr *rec,
182 struct obd_ioctl_data *ioc_data = (struct obd_ioctl_data *)data;
183 static int l, remains, from, to;
189 if (ioc_data->ioc_inllen1) {
191 remains = ioc_data->ioc_inllen4 +
192 cfs_size_round(ioc_data->ioc_inllen1) +
193 cfs_size_round(ioc_data->ioc_inllen2) +
194 cfs_size_round(ioc_data->ioc_inllen3);
195 from = simple_strtol(ioc_data->ioc_inlbuf2, &endp, 0);
198 to = simple_strtol(ioc_data->ioc_inlbuf3, &endp, 0);
201 out = ioc_data->ioc_bulk;
202 ioc_data->ioc_inllen1 = 0;
205 cur_index = rec->lrh_index;
206 if (cur_index < from)
208 if (to > 0 && cur_index > to)
209 RETURN(-LLOG_EEMPTY);
211 if (handle->lgh_hdr->llh_flags & LLOG_F_IS_CAT) {
212 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(struct llog_handle *cat, struct llog_logid *logid)
239 struct llog_handle *log;
243 cfs_down_write(&cat->lgh_lock);
244 rc = llog_cat_id2handle(cat, &log, logid);
246 CDEBUG(D_IOCTL, "cannot find log #"LPX64"#"LPX64"#%08x\n",
247 logid->lgl_oid, logid->lgl_oseq, logid->lgl_ogen);
248 GOTO(out, rc = -ENOENT);
251 index = log->u.phd.phd_cookie.lgc_index;
253 rc = llog_destroy(log);
255 CDEBUG(D_IOCTL, "cannot destroy log\n");
258 llog_cat_set_first_idx(cat, index);
259 rc = llog_cancel_rec(cat, index);
261 llog_free_handle(log);
262 cfs_up_write(&cat->lgh_lock);
267 static int llog_delete_cb(struct llog_handle *handle, struct llog_rec_hdr *rec,
270 struct llog_logid_rec *lir = (struct llog_logid_rec*)rec;
274 if (rec->lrh_type != LLOG_LOGID_MAGIC)
276 rc = llog_remove_log(handle, &lir->lid_id);
282 int llog_ioctl(struct llog_ctxt *ctxt, int cmd, struct obd_ioctl_data *data)
284 struct llog_logid logid;
286 struct llog_handle *handle = NULL;
289 if (*data->ioc_inlbuf1 == '#') {
290 err = str2logid(&logid, data->ioc_inlbuf1, data->ioc_inllen1);
293 err = llog_create(ctxt, &handle, &logid, NULL);
296 } else if (*data->ioc_inlbuf1 == '$') {
297 char *name = data->ioc_inlbuf1 + 1;
298 err = llog_create(ctxt, &handle, NULL, name);
302 GOTO(out, err = -EINVAL);
305 err = llog_init_handle(handle, 0, NULL);
307 GOTO(out_close, err = -ENOENT);
310 case OBD_IOC_LLOG_INFO: {
312 int remains = data->ioc_inllen2 +
313 cfs_size_round(data->ioc_inllen1);
314 char *out = data->ioc_bulk;
316 l = snprintf(out, remains,
317 "logid: #"LPX64"#"LPX64"#%08x\n"
319 "records count: %d\n"
321 handle->lgh_id.lgl_oid, handle->lgh_id.lgl_oseq,
322 handle->lgh_id.lgl_ogen,
323 handle->lgh_hdr->llh_flags,
324 handle->lgh_hdr->llh_flags &
325 LLOG_F_IS_CAT ? "cat" : "plain",
326 handle->lgh_hdr->llh_count,
327 handle->lgh_last_idx);
331 CERROR("not enough space for log header info\n");
333 GOTO(out_close, err);
335 case OBD_IOC_LLOG_CHECK: {
336 LASSERT(data->ioc_inllen1);
337 err = llog_process(handle, llog_check_cb, data, NULL);
338 if (err == -LLOG_EEMPTY)
340 GOTO(out_close, err);
343 case OBD_IOC_LLOG_PRINT: {
344 LASSERT(data->ioc_inllen1);
345 err = llog_process(handle, class_config_dump_handler,data,NULL);
346 if (err == -LLOG_EEMPTY)
349 err = llog_process(handle, llog_print_cb, data, NULL);
351 GOTO(out_close, err);
353 case OBD_IOC_LLOG_CANCEL: {
354 struct llog_cookie cookie;
355 struct llog_logid plain;
358 cookie.lgc_index = simple_strtoul(data->ioc_inlbuf3, &endp, 0);
360 GOTO(out_close, err = -EINVAL);
362 if (handle->lgh_hdr->llh_flags & LLOG_F_IS_CAT) {
363 cfs_down_write(&handle->lgh_lock);
364 err = llog_cancel_rec(handle, cookie.lgc_index);
365 cfs_up_write(&handle->lgh_lock);
366 GOTO(out_close, err);
369 err = str2logid(&plain, data->ioc_inlbuf2, data->ioc_inllen2);
371 GOTO(out_close, err);
372 cookie.lgc_lgl = plain;
374 if (!(handle->lgh_hdr->llh_flags & LLOG_F_IS_CAT))
375 GOTO(out_close, err = -EINVAL);
377 err = llog_cat_cancel_records(handle, 1, &cookie);
378 GOTO(out_close, err);
380 case OBD_IOC_LLOG_REMOVE: {
381 struct llog_logid plain;
383 if (handle->lgh_hdr->llh_flags & LLOG_F_IS_PLAIN) {
384 err = llog_destroy(handle);
386 llog_free_handle(handle);
390 if (!(handle->lgh_hdr->llh_flags & LLOG_F_IS_CAT))
391 GOTO(out_close, err = -EINVAL);
393 if (data->ioc_inlbuf2) {
394 /*remove indicate log from the catalog*/
395 err = str2logid(&plain, data->ioc_inlbuf2,
398 GOTO(out_close, err);
399 err = llog_remove_log(handle, &plain);
401 /*remove all the log of the catalog*/
402 llog_process(handle, llog_delete_cb, NULL, NULL);
404 GOTO(out_close, err);
409 if (handle->lgh_hdr &&
410 handle->lgh_hdr->llh_flags & LLOG_F_IS_CAT)
411 llog_cat_put(handle);
417 EXPORT_SYMBOL(llog_ioctl);
419 int llog_catalog_list(struct obd_device *obd, int count,
420 struct obd_ioctl_data *data)
423 struct llog_catid *idarray;
424 struct llog_logid *id;
425 char name[32] = CATLIST;
427 int l, remains, rc = 0;
430 size = sizeof(*idarray) * count;
432 OBD_ALLOC_LARGE(idarray, size);
436 cfs_mutex_lock(&obd->obd_olg.olg_cat_processing);
437 rc = llog_get_cat_list(obd, name, 0, count, idarray);
441 out = data->ioc_bulk;
442 remains = data->ioc_inllen1;
443 for (i = 0; i < count; i++) {
444 id = &idarray[i].lci_logid;
445 l = snprintf(out, remains,
446 "catalog log: #"LPX64"#"LPX64"#%08x\n",
447 id->lgl_oid, id->lgl_oseq, id->lgl_ogen);
451 CWARN("not enough memory for catlog list\n");
456 /* release semaphore */
457 cfs_mutex_unlock(&obd->obd_olg.olg_cat_processing);
459 OBD_FREE_LARGE(idarray, size);
463 EXPORT_SYMBOL(llog_catalog_list);