4 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
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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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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;
244 cfs_down_write(&cat->lgh_lock);
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 llog_cat_set_first_idx(cat, index);
260 rc = llog_cancel_rec(env, cat, index);
262 cfs_up_write(&cat->lgh_lock);
263 llog_close(env, log);
268 static int llog_delete_cb(const struct lu_env *env, struct llog_handle *handle,
269 struct llog_rec_hdr *rec, void *data)
271 struct llog_logid_rec *lir = (struct llog_logid_rec *)rec;
275 if (rec->lrh_type != LLOG_LOGID_MAGIC)
277 rc = llog_remove_log(env, handle, &lir->lid_id);
283 int llog_ioctl(struct llog_ctxt *ctxt, int cmd, struct obd_ioctl_data *data)
285 struct llog_logid logid;
287 struct llog_handle *handle = NULL;
290 if (*data->ioc_inlbuf1 == '#') {
291 err = str2logid(&logid, data->ioc_inlbuf1, data->ioc_inllen1);
294 err = llog_open(NULL, ctxt, &handle, &logid, NULL,
298 } else if (*data->ioc_inlbuf1 == '$') {
299 char *name = data->ioc_inlbuf1 + 1;
301 err = llog_open(NULL, ctxt, &handle, NULL, name,
306 GOTO(out, err = -EINVAL);
309 err = llog_init_handle(NULL, handle, 0, NULL);
311 GOTO(out_close, err = -ENOENT);
314 case OBD_IOC_LLOG_INFO: {
316 int remains = data->ioc_inllen2 +
317 cfs_size_round(data->ioc_inllen1);
318 char *out = data->ioc_bulk;
320 l = snprintf(out, remains,
321 "logid: #"LPX64"#"LPX64"#%08x\n"
323 "records count: %d\n"
325 handle->lgh_id.lgl_oid, handle->lgh_id.lgl_oseq,
326 handle->lgh_id.lgl_ogen,
327 handle->lgh_hdr->llh_flags,
328 handle->lgh_hdr->llh_flags &
329 LLOG_F_IS_CAT ? "cat" : "plain",
330 handle->lgh_hdr->llh_count,
331 handle->lgh_last_idx);
335 CERROR("not enough space for log header info\n");
337 GOTO(out_close, err);
339 case OBD_IOC_LLOG_CHECK: {
340 LASSERT(data->ioc_inllen1);
341 err = llog_process(NULL, handle, llog_check_cb, data, NULL);
342 if (err == -LLOG_EEMPTY)
344 GOTO(out_close, err);
347 case OBD_IOC_LLOG_PRINT: {
348 LASSERT(data->ioc_inllen1);
349 err = llog_process(NULL, handle, class_config_dump_handler,
351 if (err == -LLOG_EEMPTY)
354 err = llog_process(NULL, handle, llog_print_cb, data,
357 GOTO(out_close, err);
359 case OBD_IOC_LLOG_CANCEL: {
360 struct llog_cookie cookie;
361 struct llog_logid plain;
364 cookie.lgc_index = simple_strtoul(data->ioc_inlbuf3, &endp, 0);
366 GOTO(out_close, err = -EINVAL);
368 if (handle->lgh_hdr->llh_flags & LLOG_F_IS_CAT) {
369 cfs_down_write(&handle->lgh_lock);
370 err = llog_cancel_rec(NULL, handle, cookie.lgc_index);
371 cfs_up_write(&handle->lgh_lock);
372 GOTO(out_close, err);
375 err = str2logid(&plain, data->ioc_inlbuf2, data->ioc_inllen2);
377 GOTO(out_close, err);
378 cookie.lgc_lgl = plain;
380 if (!(handle->lgh_hdr->llh_flags & LLOG_F_IS_CAT))
381 GOTO(out_close, err = -EINVAL);
383 err = llog_cat_cancel_records(NULL, handle, 1, &cookie);
384 GOTO(out_close, err);
386 case OBD_IOC_LLOG_REMOVE: {
387 struct llog_logid plain;
389 if (handle->lgh_hdr->llh_flags & LLOG_F_IS_PLAIN) {
390 err = llog_destroy(NULL, handle);
391 GOTO(out_close, err);
392 } else if (!(handle->lgh_hdr->llh_flags & LLOG_F_IS_CAT)) {
393 GOTO(out_close, err = -EINVAL);
396 if (data->ioc_inlbuf2) {
397 /*remove indicate log from the catalog*/
398 err = str2logid(&plain, data->ioc_inlbuf2,
401 GOTO(out_close, err);
402 err = llog_remove_log(NULL, handle, &plain);
404 /* remove all the log of the catalog */
405 err = llog_process(NULL, handle, llog_delete_cb, NULL,
408 GOTO(out_close, err);
413 GOTO(out_close, err = -ENOTTY);
417 if (handle->lgh_hdr &&
418 handle->lgh_hdr->llh_flags & LLOG_F_IS_CAT)
419 llog_cat_close(NULL, handle);
421 llog_close(NULL, handle);
425 EXPORT_SYMBOL(llog_ioctl);
427 int llog_catalog_list(struct obd_device *obd, int count,
428 struct obd_ioctl_data *data)
431 struct llog_catid *idarray;
432 struct llog_logid *id;
433 char name[32] = CATLIST;
435 int l, remains, rc = 0;
438 size = sizeof(*idarray) * count;
440 OBD_ALLOC_LARGE(idarray, size);
444 cfs_mutex_lock(&obd->obd_olg.olg_cat_processing);
445 rc = llog_get_cat_list(obd, name, 0, count, idarray);
449 out = data->ioc_bulk;
450 remains = data->ioc_inllen1;
451 for (i = 0; i < count; i++) {
452 id = &idarray[i].lci_logid;
453 l = snprintf(out, remains,
454 "catalog log: #"LPX64"#"LPX64"#%08x\n",
455 id->lgl_oid, id->lgl_oseq, id->lgl_ogen);
459 CWARN("not enough memory for catlog list\n");
464 /* release semaphore */
465 cfs_mutex_unlock(&obd->obd_olg.olg_cat_processing);
467 OBD_FREE_LARGE(idarray, size);
471 EXPORT_SYMBOL(llog_catalog_list);