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,
8 * as published by the Free Software Foundation.
10 * This program is distributed in the hope that it will be useful, but
11 * WITHOUT ANY WARRANTY; without even the implied warranty of
12 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
13 * General Public License version 2 for more details (a copy is included
14 * in the LICENSE file that accompanied this code).
16 * You should have received a copy of the GNU General Public License
17 * version 2 along with this program; If not, see
18 * http://www.sun.com/software/products/lustre/docs/GPLv2.pdf
20 * Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa Clara,
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.
28 * Use is subject to license terms.
30 * Copyright (c) 2011, 2012, Intel Corporation.
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 "llog_internal.h"
43 static int str2logid(struct llog_logid
*logid
, char *str
, int len
)
45 char *start
, *end
, *endp
;
53 if (start
- str
>= len
- 1)
55 end
= strchr(start
, '#');
56 if (end
== NULL
|| end
== start
)
60 id
= simple_strtoull(start
, &endp
, 0);
65 if (start
- str
>= len
- 1)
67 end
= strchr(start
, '#');
68 if (end
== NULL
|| end
== start
)
72 seq
= simple_strtoull(start
, &endp
, 0);
76 ostid_set_seq(&logid
->lgl_oi
, seq
);
77 ostid_set_id(&logid
->lgl_oi
, id
);
80 if (start
- str
>= len
- 1)
82 logid
->lgl_ogen
= simple_strtoul(start
, &endp
, 16);
89 static int llog_check_cb(const struct lu_env
*env
, struct llog_handle
*handle
,
90 struct llog_rec_hdr
*rec
, void *data
)
92 struct obd_ioctl_data
*ioc_data
= (struct obd_ioctl_data
*)data
;
93 static int l
, remains
, from
, to
;
96 int cur_index
, rc
= 0;
98 if (ioc_data
&& ioc_data
->ioc_inllen1
> 0) {
100 remains
= ioc_data
->ioc_inllen4
+
101 cfs_size_round(ioc_data
->ioc_inllen1
) +
102 cfs_size_round(ioc_data
->ioc_inllen2
) +
103 cfs_size_round(ioc_data
->ioc_inllen3
);
104 from
= simple_strtol(ioc_data
->ioc_inlbuf2
, &endp
, 0);
107 to
= simple_strtol(ioc_data
->ioc_inlbuf3
, &endp
, 0);
110 ioc_data
->ioc_inllen1
= 0;
111 out
= ioc_data
->ioc_bulk
;
114 cur_index
= rec
->lrh_index
;
115 if (cur_index
< from
)
117 if (to
> 0 && cur_index
> to
)
120 if (handle
->lgh_hdr
->llh_flags
& LLOG_F_IS_CAT
) {
121 struct llog_logid_rec
*lir
= (struct llog_logid_rec
*)rec
;
122 struct llog_handle
*loghandle
;
124 if (rec
->lrh_type
!= LLOG_LOGID_MAGIC
) {
125 l
= snprintf(out
, remains
, "[index]: %05d [type]: "
126 "%02x [len]: %04d failed\n",
127 cur_index
, rec
->lrh_type
,
130 if (handle
->lgh_ctxt
== NULL
)
132 rc
= llog_cat_id2handle(env
, handle
, &loghandle
, &lir
->lid_id
);
134 CDEBUG(D_IOCTL
, "cannot find log #"DOSTID
"#%08x\n",
135 POSTID(&lir
->lid_id
.lgl_oi
),
136 lir
->lid_id
.lgl_ogen
);
139 rc
= llog_process(env
, loghandle
, llog_check_cb
, NULL
, NULL
);
140 llog_handle_put(loghandle
);
144 switch (rec
->lrh_type
) {
147 case MDS_UNLINK64_REC
:
148 case MDS_SETATTR64_REC
:
158 l
= snprintf(out
, remains
, "[index]: %05d [type]: "
159 "%02x [len]: %04d %s\n",
160 cur_index
, rec
->lrh_type
, rec
->lrh_len
,
161 ok
? "ok" : "failed");
165 CERROR("%s: no space to print log records\n",
166 handle
->lgh_ctxt
->loc_obd
->obd_name
);
173 static int llog_print_cb(const struct lu_env
*env
, struct llog_handle
*handle
,
174 struct llog_rec_hdr
*rec
, void *data
)
176 struct obd_ioctl_data
*ioc_data
= (struct obd_ioctl_data
*)data
;
177 static int l
, remains
, from
, to
;
182 if (ioc_data
!= NULL
&& ioc_data
->ioc_inllen1
> 0) {
184 remains
= ioc_data
->ioc_inllen4
+
185 cfs_size_round(ioc_data
->ioc_inllen1
) +
186 cfs_size_round(ioc_data
->ioc_inllen2
) +
187 cfs_size_round(ioc_data
->ioc_inllen3
);
188 from
= simple_strtol(ioc_data
->ioc_inlbuf2
, &endp
, 0);
191 to
= simple_strtol(ioc_data
->ioc_inlbuf3
, &endp
, 0);
194 out
= ioc_data
->ioc_bulk
;
195 ioc_data
->ioc_inllen1
= 0;
198 cur_index
= rec
->lrh_index
;
199 if (cur_index
< from
)
201 if (to
> 0 && cur_index
> to
)
204 if (handle
->lgh_hdr
->llh_flags
& LLOG_F_IS_CAT
) {
205 struct llog_logid_rec
*lir
= (struct llog_logid_rec
*)rec
;
207 if (rec
->lrh_type
!= LLOG_LOGID_MAGIC
) {
208 CERROR("invalid record in catalog\n");
212 l
= snprintf(out
, remains
,
213 "[index]: %05d [logid]: #"DOSTID
"#%08x\n",
214 cur_index
, POSTID(&lir
->lid_id
.lgl_oi
),
215 lir
->lid_id
.lgl_ogen
);
216 } else if (rec
->lrh_type
== OBD_CFG_REC
) {
219 rc
= class_config_parse_rec(rec
, out
, remains
);
224 l
= snprintf(out
, remains
,
225 "[index]: %05d [type]: %02x [len]: %04d\n",
226 cur_index
, rec
->lrh_type
, rec
->lrh_len
);
231 CERROR("not enough space for print log records\n");
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
;
243 rc
= llog_cat_id2handle(env
, cat
, &log
, logid
);
245 CDEBUG(D_IOCTL
, "cannot find log #"DOSTID
"#%08x\n",
246 POSTID(&logid
->lgl_oi
), logid
->lgl_ogen
);
250 rc
= llog_destroy(env
, log
);
252 CDEBUG(D_IOCTL
, "cannot destroy log\n");
255 llog_cat_cleanup(env
, cat
, log
, log
->u
.phd
.phd_cookie
.lgc_index
);
257 llog_handle_put(log
);
262 static int llog_delete_cb(const struct lu_env
*env
, struct llog_handle
*handle
,
263 struct llog_rec_hdr
*rec
, void *data
)
265 struct llog_logid_rec
*lir
= (struct llog_logid_rec
*)rec
;
268 if (rec
->lrh_type
!= LLOG_LOGID_MAGIC
)
270 rc
= llog_remove_log(env
, handle
, &lir
->lid_id
);
276 int llog_ioctl(const struct lu_env
*env
, struct llog_ctxt
*ctxt
, int cmd
,
277 struct obd_ioctl_data
*data
)
279 struct llog_logid logid
;
281 struct llog_handle
*handle
= NULL
;
283 if (*data
->ioc_inlbuf1
== '#') {
284 rc
= str2logid(&logid
, data
->ioc_inlbuf1
, data
->ioc_inllen1
);
287 rc
= llog_open(env
, ctxt
, &handle
, &logid
, NULL
,
291 } else if (*data
->ioc_inlbuf1
== '$') {
292 char *name
= data
->ioc_inlbuf1
+ 1;
294 rc
= llog_open(env
, ctxt
, &handle
, NULL
, name
,
302 rc
= llog_init_handle(env
, handle
, 0, NULL
);
304 GOTO(out_close
, rc
= -ENOENT
);
307 case OBD_IOC_LLOG_INFO
: {
309 int remains
= data
->ioc_inllen2
+
310 cfs_size_round(data
->ioc_inllen1
);
311 char *out
= data
->ioc_bulk
;
313 l
= snprintf(out
, remains
,
314 "logid: #"DOSTID
"#%08x\n"
316 "records count: %d\n"
318 POSTID(&handle
->lgh_id
.lgl_oi
),
319 handle
->lgh_id
.lgl_ogen
,
320 handle
->lgh_hdr
->llh_flags
,
321 handle
->lgh_hdr
->llh_flags
&
322 LLOG_F_IS_CAT
? "cat" : "plain",
323 handle
->lgh_hdr
->llh_count
,
324 handle
->lgh_last_idx
);
328 CERROR("%s: not enough space for log header info\n",
329 ctxt
->loc_obd
->obd_name
);
334 case OBD_IOC_LLOG_CHECK
:
335 LASSERT(data
->ioc_inllen1
> 0);
336 rc
= llog_process(env
, handle
, llog_check_cb
, data
, NULL
);
337 if (rc
== -LLOG_EEMPTY
)
342 case OBD_IOC_LLOG_PRINT
:
343 LASSERT(data
->ioc_inllen1
> 0);
344 rc
= llog_process(env
, handle
, llog_print_cb
, data
, NULL
);
345 if (rc
== -LLOG_EEMPTY
)
350 case OBD_IOC_LLOG_CANCEL
: {
351 struct llog_cookie cookie
;
352 struct llog_logid plain
;
355 cookie
.lgc_index
= simple_strtoul(data
->ioc_inlbuf3
, &endp
, 0);
357 GOTO(out_close
, rc
= -EINVAL
);
359 if (handle
->lgh_hdr
->llh_flags
& LLOG_F_IS_PLAIN
) {
360 rc
= llog_cancel_rec(NULL
, handle
, cookie
.lgc_index
);
362 } else if (!(handle
->lgh_hdr
->llh_flags
& LLOG_F_IS_CAT
)) {
363 GOTO(out_close
, rc
= -EINVAL
);
366 if (data
->ioc_inlbuf2
== NULL
) /* catalog but no logid */
367 GOTO(out_close
, rc
= -ENOTTY
);
369 rc
= str2logid(&plain
, data
->ioc_inlbuf2
, data
->ioc_inllen2
);
372 cookie
.lgc_lgl
= plain
;
373 rc
= llog_cat_cancel_records(env
, handle
, 1, &cookie
);
378 case OBD_IOC_LLOG_REMOVE
: {
379 struct llog_logid plain
;
381 if (handle
->lgh_hdr
->llh_flags
& LLOG_F_IS_PLAIN
) {
382 rc
= llog_destroy(env
, handle
);
384 } else if (!(handle
->lgh_hdr
->llh_flags
& LLOG_F_IS_CAT
)) {
385 GOTO(out_close
, rc
= -EINVAL
);
388 if (data
->ioc_inlbuf2
> 0) {
389 /* remove indicate log from the catalog */
390 rc
= str2logid(&plain
, data
->ioc_inlbuf2
,
394 rc
= llog_remove_log(env
, handle
, &plain
);
396 /* remove all the log of the catalog */
397 rc
= llog_process(env
, handle
, llog_delete_cb
, NULL
,
405 CERROR("%s: Unknown ioctl cmd %#x\n",
406 ctxt
->loc_obd
->obd_name
, cmd
);
407 GOTO(out_close
, rc
= -ENOTTY
);
411 if (handle
->lgh_hdr
&&
412 handle
->lgh_hdr
->llh_flags
& LLOG_F_IS_CAT
)
413 llog_cat_close(env
, handle
);
415 llog_close(env
, handle
);
418 EXPORT_SYMBOL(llog_ioctl
);
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