2 * collectd - src/mcelog.c
5 * Copyright(c) 2016 Intel Corporation. All rights reserved.
7 * Permission is hereby granted, free of charge, to any person obtaining a
8 * copy of this software and associated documentation files (the "Software"),
9 * to deal in the Software without restriction, including without limitation
10 * the rights to use, copy, modify, merge, publish, distribute, sublicense,
11 * and/or sell copies of the Software, and to permit persons to whom the
12 * Software is furnished to do so, subject to the following conditions:
14 * The above copyright notice and this permission notice shall be included in
15 * all copies or substantial portions of the Software.
17 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
18 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
19 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
20 * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
21 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
22 * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
23 * DEALINGS IN THE SOFTWARE.
26 * Maryam Tahhan <maryam.tahhan@intel.com>
27 * Volodymyr Mytnyk <volodymyrx.mytnyk@intel.com>
28 * Taras Chornyi <tarasx.chornyi@intel.com>
29 * Krzysztof Matczak <krzysztofx.matczak@intel.com>
35 #include "utils_llist.h"
38 #include <sys/socket.h>
42 #define MCELOG_PLUGIN "mcelog"
43 #define MCELOG_BUFF_SIZE 1024
44 #define MCELOG_POLL_TIMEOUT 1000 /* ms */
45 #define MCELOG_SOCKET_STR "SOCKET"
46 #define MCELOG_DIMM_NAME "DMI_NAME"
47 #define MCELOG_CORRECTED_ERR "corrected memory errors"
48 #define MCELOG_UNCORRECTED_ERR "uncorrected memory errors"
49 #define MCELOG_CORRECTED_ERR_TYPE_INS "corrected_memory_errors"
50 #define MCELOG_UNCORRECTED_ERR_TYPE_INS "uncorrected_memory_errors"
52 typedef struct mcelog_config_s {
53 char logfile[PATH_MAX]; /* mcelog logfile */
54 pthread_t tid; /* poll thread id */
55 llist_t *dimms_list; /* DIMMs list */
56 /* lock for dimms cache */
57 pthread_mutex_t dimms_lock;
60 typedef struct socket_adapter_s socket_adapter_t;
62 struct socket_adapter_s {
63 int sock_fd; /* mcelog server socket fd */
64 struct sockaddr_un unix_sock; /* mcelog client socket */
65 pthread_rwlock_t lock;
66 /* function pointers for socket operations */
67 int (*write)(socket_adapter_t *self, const char *msg, const size_t len);
68 int (*reinit)(socket_adapter_t *self);
69 int (*receive)(socket_adapter_t *self, FILE **p_file);
70 int (*close)(socket_adapter_t *self);
73 typedef struct mcelog_memory_rec_s {
74 int corrected_err_total; /* x total*/
75 int corrected_err_timed; /* x in 24h*/
76 char corrected_err_timed_period[DATA_MAX_NAME_LEN];
77 int uncorrected_err_total; /* x total*/
78 int uncorrected_err_timed; /* x in 24h*/
79 char uncorrected_err_timed_period[DATA_MAX_NAME_LEN];
80 char location[DATA_MAX_NAME_LEN]; /* SOCKET x CHANNEL x DIMM x*/
81 char dimm_name[DATA_MAX_NAME_LEN]; /* DMI_NAME "DIMM_F1" */
82 } mcelog_memory_rec_t;
84 static int socket_close(socket_adapter_t *self);
85 static int socket_write(socket_adapter_t *self, const char *msg,
87 static int socket_reinit(socket_adapter_t *self);
88 static int socket_receive(socket_adapter_t *self, FILE **p_file);
90 static mcelog_config_t g_mcelog_config = {
91 .logfile = "/var/log/mcelog",
94 static socket_adapter_t socket_adapter = {
98 .sun_family = AF_UNIX, .sun_path = "/var/run/mcelog-client",
100 .lock = PTHREAD_RWLOCK_INITIALIZER,
101 .close = socket_close,
102 .write = socket_write,
103 .reinit = socket_reinit,
104 .receive = socket_receive,
107 static _Bool mcelog_thread_running;
109 static void mcelog_free_dimms_list_records(llist_t *dimms_list) {
111 for (llentry_t *e = llist_head(dimms_list); e != NULL; e = e->next) {
118 /* Create or get dimm by dimm name/location */
119 static llentry_t *mcelog_dimm(const mcelog_memory_rec_t *rec,
120 llist_t *dimms_list) {
122 char dimm_name[DATA_MAX_NAME_LEN];
124 if (strlen(rec->dimm_name) > 0) {
125 ssnprintf(dimm_name, sizeof(dimm_name), "%s_%s", rec->location,
128 sstrncpy(dimm_name, rec->location, sizeof(dimm_name));
130 llentry_t *dimm_le = llist_search(g_mcelog_config.dimms_list, dimm_name);
132 if (dimm_le == NULL) {
133 mcelog_memory_rec_t *dimm_mr = calloc(1, sizeof(*dimm_mr));
134 if (dimm_mr == NULL) {
135 ERROR(MCELOG_PLUGIN ": Error allocating dimm memory item");
138 char *p_name = strdup(dimm_name);
139 if (p_name == NULL) {
140 ERROR(MCELOG_PLUGIN ": strdup: error");
145 dimm_le = llentry_create(p_name, dimm_mr);
146 if (dimm_le == NULL) {
147 ERROR(MCELOG_PLUGIN ": llentry_create(): error");
151 pthread_mutex_lock(&g_mcelog_config.dimms_lock);
152 llist_append(g_mcelog_config.dimms_list, dimm_le);
153 pthread_mutex_unlock(&g_mcelog_config.dimms_lock);
159 static void mcelog_update_dimm_stats(llentry_t *dimm,
160 const mcelog_memory_rec_t *rec) {
161 pthread_mutex_lock(&g_mcelog_config.dimms_lock);
162 memcpy(dimm->value, rec, sizeof(mcelog_memory_rec_t));
163 pthread_mutex_unlock(&g_mcelog_config.dimms_lock);
167 static int mcelog_config(oconfig_item_t *ci) {
168 for (int i = 0; i < ci->children_num; i++) {
169 oconfig_item_t *child = ci->children + i;
170 if (strcasecmp("McelogClientSocket", child->key) == 0) {
171 if (cf_util_get_string_buffer(child, socket_adapter.unix_sock.sun_path,
172 sizeof(socket_adapter.unix_sock.sun_path)) <
174 ERROR(MCELOG_PLUGIN ": Invalid configuration option: \"%s\".",
178 } else if (strcasecmp("McelogLogfile", child->key) == 0) {
179 if (cf_util_get_string_buffer(child, g_mcelog_config.logfile,
180 sizeof(g_mcelog_config.logfile)) < 0) {
181 ERROR(MCELOG_PLUGIN ": Invalid configuration option: \"%s\".",
186 ERROR(MCELOG_PLUGIN ": Invalid configuration option: \"%s\".",
194 static int socket_close(socket_adapter_t *self) {
196 pthread_rwlock_rdlock(&self->lock);
197 if (fcntl(self->sock_fd, F_GETFL) != -1) {
198 char errbuf[MCELOG_BUFF_SIZE];
199 if (shutdown(self->sock_fd, SHUT_RDWR) != 0) {
200 ERROR(MCELOG_PLUGIN ": Socket shutdown failed: %s",
201 sstrerror(errno, errbuf, sizeof(errbuf)));
204 if (close(self->sock_fd) != 0) {
205 ERROR(MCELOG_PLUGIN ": Socket close failed: %s",
206 sstrerror(errno, errbuf, sizeof(errbuf)));
210 pthread_rwlock_unlock(&self->lock);
214 static int socket_write(socket_adapter_t *self, const char *msg,
217 pthread_rwlock_rdlock(&self->lock);
218 if (swrite(self->sock_fd, msg, len) < 0)
220 pthread_rwlock_unlock(&self->lock);
224 static void mcelog_dispatch_notification(notification_t *n) {
226 ERROR(MCELOG_PLUGIN ": %s: NULL pointer", __FUNCTION__);
230 sstrncpy(n->host, hostname_g, sizeof(n->host));
231 sstrncpy(n->type, "gauge", sizeof(n->type));
232 plugin_dispatch_notification(n);
234 plugin_notification_meta_free(n->meta);
237 static int socket_reinit(socket_adapter_t *self) {
238 char errbuff[MCELOG_BUFF_SIZE];
240 cdtime_t interval = plugin_get_interval();
241 struct timeval socket_timeout = CDTIME_T_TO_TIMEVAL(interval);
243 /* synchronization via write lock since sock_fd may be changed here */
244 pthread_rwlock_wrlock(&self->lock);
246 socket(PF_UNIX, SOCK_STREAM | SOCK_CLOEXEC | SOCK_NONBLOCK, 0);
247 if (self->sock_fd < 0) {
248 ERROR(MCELOG_PLUGIN ": Could not create a socket. %s",
249 sstrerror(errno, errbuff, sizeof(errbuff)));
250 pthread_rwlock_unlock(&self->lock);
254 /* Set socket timeout option */
255 if (setsockopt(self->sock_fd, SOL_SOCKET, SO_SNDTIMEO, &socket_timeout,
256 sizeof(socket_timeout)) < 0)
257 ERROR(MCELOG_PLUGIN ": Failed to set the socket timeout option.");
259 /* downgrading to read lock due to possible recursive read locks
260 * in self->close(self) call */
261 pthread_rwlock_unlock(&self->lock);
262 pthread_rwlock_rdlock(&self->lock);
263 if (connect(self->sock_fd, (struct sockaddr *)&(self->unix_sock),
264 sizeof(self->unix_sock)) < 0) {
265 ERROR(MCELOG_PLUGIN ": Failed to connect to mcelog server. %s",
266 sstrerror(errno, errbuff, sizeof(errbuff)));
271 mcelog_dispatch_notification(
272 &(notification_t){.severity = NOTIF_OKAY,
274 .message = "Connected to mcelog server",
275 .plugin = MCELOG_PLUGIN,
276 .type_instance = "mcelog_status"});
278 pthread_rwlock_unlock(&self->lock);
282 static int mcelog_dispatch_mem_notifications(const mcelog_memory_rec_t *mr) {
283 notification_t n = {.severity = NOTIF_WARNING,
285 .plugin = MCELOG_PLUGIN,
288 int dispatch_corrected_notifs = 0, dispatch_uncorrected_notifs = 0;
293 llentry_t *dimm = mcelog_dimm(mr, g_mcelog_config.dimms_list);
295 ERROR(MCELOG_PLUGIN ": Error adding/getting dimm memory item to/from cache");
299 mcelog_memory_rec_t *mr_old = dimm->value;
301 if (mr_old->corrected_err_total != mr->corrected_err_total ||
302 mr_old->corrected_err_timed != mr->corrected_err_timed)
303 dispatch_corrected_notifs = 1;
305 if (mr_old->uncorrected_err_total != mr->uncorrected_err_total ||
306 mr_old->uncorrected_err_timed != mr->uncorrected_err_timed)
307 dispatch_uncorrected_notifs = 1;
309 if (!dispatch_corrected_notifs && !dispatch_uncorrected_notifs) {
310 DEBUG("%s: No new notifications to dispatch", MCELOG_PLUGIN);
314 sstrncpy(n.host, hostname_g, sizeof(n.host));
316 if (mr->dimm_name[0] != '\0')
317 ssnprintf(n.plugin_instance, sizeof(n.plugin_instance), "%s_%s",
318 mr->location, mr->dimm_name);
320 sstrncpy(n.plugin_instance, mr->location, sizeof(n.plugin_instance));
322 if (dispatch_corrected_notifs) {
323 /* Corrected Error Notifications */
324 if (mr->corrected_err_total > 0 || mr->corrected_err_timed > 0) {
325 if (plugin_notification_meta_add_signed_int(
326 &n, MCELOG_CORRECTED_ERR, mr->corrected_err_total) < 0) {
327 ERROR(MCELOG_PLUGIN ": add corrected errors meta data failed");
328 plugin_notification_meta_free(n.meta);
331 if (plugin_notification_meta_add_signed_int(
332 &n, "corrected memory timed errors", mr->corrected_err_timed) <
334 ERROR(MCELOG_PLUGIN ": add corrected timed errors meta data failed");
335 plugin_notification_meta_free(n.meta);
338 ssnprintf(n.message, sizeof(n.message), "Corrected Memory Errors");
339 sstrncpy(n.type_instance, MCELOG_CORRECTED_ERR_TYPE_INS,
340 sizeof(n.type_instance));
341 plugin_dispatch_notification(&n);
344 plugin_notification_meta_free(n.meta);
348 if (dispatch_uncorrected_notifs) {
349 /* Uncorrected Error Notifications */
350 if (mr->uncorrected_err_total > 0 || mr->uncorrected_err_timed > 0) {
351 if (plugin_notification_meta_add_signed_int(
352 &n, MCELOG_UNCORRECTED_ERR, mr->uncorrected_err_total) < 0) {
353 ERROR(MCELOG_PLUGIN ": add uncorrected errors meta data failed");
354 plugin_notification_meta_free(n.meta);
357 if (plugin_notification_meta_add_signed_int(
358 &n, "uncorrected memory timed errors",
359 mr->uncorrected_err_timed) < 0) {
360 ERROR(MCELOG_PLUGIN ": add uncorrected timed errors meta data failed");
361 plugin_notification_meta_free(n.meta);
364 ssnprintf(n.message, sizeof(n.message), "Uncorrected Memory Errors");
365 sstrncpy(n.type_instance, MCELOG_UNCORRECTED_ERR_TYPE_INS,
366 sizeof(n.type_instance));
367 n.severity = NOTIF_FAILURE;
368 plugin_dispatch_notification(&n);
371 plugin_notification_meta_free(n.meta);
378 static int mcelog_submit(const mcelog_memory_rec_t *mr) {
381 ERROR(MCELOG_PLUGIN ": %s: NULL pointer", __FUNCTION__);
385 llentry_t *dimm = mcelog_dimm(mr, g_mcelog_config.dimms_list);
387 ERROR(MCELOG_PLUGIN ": Error adding/getting dimm memory item to/from cache");
393 .values = &(value_t){.derive = (derive_t)mr->corrected_err_total},
395 .plugin = MCELOG_PLUGIN,
397 .type_instance = MCELOG_CORRECTED_ERR_TYPE_INS};
399 mcelog_update_dimm_stats(dimm, mr);
401 if (mr->dimm_name[0] != '\0')
402 ssnprintf(vl.plugin_instance, sizeof(vl.plugin_instance), "%s_%s",
403 mr->location, mr->dimm_name);
405 sstrncpy(vl.plugin_instance, mr->location, sizeof(vl.plugin_instance));
407 plugin_dispatch_values(&vl);
409 ssnprintf(vl.type_instance, sizeof(vl.type_instance),
410 "corrected_memory_errors_in_%s", mr->corrected_err_timed_period);
411 vl.values = &(value_t){.derive = (derive_t)mr->corrected_err_timed};
412 plugin_dispatch_values(&vl);
414 sstrncpy(vl.type_instance, MCELOG_UNCORRECTED_ERR_TYPE_INS,
415 sizeof(vl.type_instance));
416 vl.values = &(value_t){.derive = (derive_t)mr->uncorrected_err_total};
417 plugin_dispatch_values(&vl);
419 ssnprintf(vl.type_instance, sizeof(vl.type_instance),
420 "uncorrected_memory_errors_in_%s",
421 mr->uncorrected_err_timed_period);
422 vl.values = &(value_t){.derive = (derive_t)mr->uncorrected_err_timed};
423 plugin_dispatch_values(&vl);
428 static int parse_memory_info(FILE *p_file, mcelog_memory_rec_t *memory_record) {
429 char buf[DATA_MAX_NAME_LEN] = {0};
430 while (fgets(buf, sizeof(buf), p_file)) {
431 /* Got empty line or "done" */
432 if ((!strncmp("\n", buf, strlen(buf))) ||
433 (!strncmp(buf, "done\n", strlen(buf))))
437 if (!strncmp(buf, MCELOG_SOCKET_STR, strlen(MCELOG_SOCKET_STR))) {
438 sstrncpy(memory_record->location, buf, strlen(buf));
439 /* replace spaces with '_' */
440 for (size_t i = 0; i < strlen(memory_record->location); i++)
441 if (memory_record->location[i] == ' ')
442 memory_record->location[i] = '_';
443 DEBUG(MCELOG_PLUGIN ": Got SOCKET INFO %s", memory_record->location);
445 if (!strncmp(buf, MCELOG_DIMM_NAME, strlen(MCELOG_DIMM_NAME))) {
447 char *saveptr = NULL;
448 name = strtok_r(buf, "\"", &saveptr);
449 if (name != NULL && saveptr != NULL) {
450 name = strtok_r(NULL, "\"", &saveptr);
452 sstrncpy(memory_record->dimm_name, name,
453 sizeof(memory_record->dimm_name));
454 DEBUG(MCELOG_PLUGIN ": Got DIMM NAME %s", memory_record->dimm_name);
458 if (!strncmp(buf, MCELOG_CORRECTED_ERR, strlen(MCELOG_CORRECTED_ERR))) {
460 if (fgets(buf, sizeof(buf), p_file) != NULL) {
461 sscanf(buf, "\t%d total", &(memory_record->corrected_err_total));
462 DEBUG(MCELOG_PLUGIN ": Got corrected error total %d",
463 memory_record->corrected_err_total);
465 if (fgets(buf, sizeof(buf), p_file) != NULL) {
466 sscanf(buf, "\t%d in %s", &(memory_record->corrected_err_timed),
467 memory_record->corrected_err_timed_period);
468 DEBUG(MCELOG_PLUGIN ": Got timed corrected errors %d in %s",
469 memory_record->corrected_err_total,
470 memory_record->corrected_err_timed_period);
473 if (!strncmp(buf, MCELOG_UNCORRECTED_ERR, strlen(MCELOG_UNCORRECTED_ERR))) {
474 if (fgets(buf, sizeof(buf), p_file) != NULL) {
475 sscanf(buf, "\t%d total", &(memory_record->uncorrected_err_total));
476 DEBUG(MCELOG_PLUGIN ": Got uncorrected error total %d",
477 memory_record->uncorrected_err_total);
479 if (fgets(buf, sizeof(buf), p_file) != NULL) {
480 sscanf(buf, "\t%d in %s", &(memory_record->uncorrected_err_timed),
481 memory_record->uncorrected_err_timed_period);
482 DEBUG(MCELOG_PLUGIN ": Got timed uncorrected errors %d in %s",
483 memory_record->uncorrected_err_total,
484 memory_record->uncorrected_err_timed_period);
487 memset(buf, 0, sizeof(buf));
489 /* parsing definitely finished */
493 static void poll_worker_cleanup(void *arg) {
494 mcelog_thread_running = 0;
495 FILE *p_file = *((FILE **)arg);
501 static int socket_receive(socket_adapter_t *self, FILE **pp_file) {
503 pthread_rwlock_rdlock(&self->lock);
504 struct pollfd poll_fd = {
505 .fd = self->sock_fd, .events = POLLIN | POLLPRI,
508 if ((res = poll(&poll_fd, 1, MCELOG_POLL_TIMEOUT)) <= 0) {
509 if (res != 0 && errno != EINTR) {
510 char errbuf[MCELOG_BUFF_SIZE];
511 ERROR("mcelog: poll failed: %s",
512 sstrerror(errno, errbuf, sizeof(errbuf)));
514 pthread_rwlock_unlock(&self->lock);
518 if (poll_fd.revents & (POLLERR | POLLHUP | POLLNVAL)) {
519 /* connection is broken */
520 ERROR(MCELOG_PLUGIN ": Connection to socket is broken");
521 if (poll_fd.revents & (POLLERR | POLLHUP)) {
522 mcelog_dispatch_notification(
523 &(notification_t){.severity = NOTIF_FAILURE,
525 .message = "Connection to mcelog socket is broken.",
526 .plugin = MCELOG_PLUGIN,
527 .type_instance = "mcelog_status"});
529 pthread_rwlock_unlock(&self->lock);
533 if (!(poll_fd.revents & (POLLIN | POLLPRI))) {
534 INFO(MCELOG_PLUGIN ": No data to read");
535 pthread_rwlock_unlock(&self->lock);
539 if ((*pp_file = fdopen(dup(self->sock_fd), "r")) == NULL)
542 pthread_rwlock_unlock(&self->lock);
546 static void *poll_worker(__attribute__((unused)) void *arg) {
547 char errbuf[MCELOG_BUFF_SIZE];
548 mcelog_thread_running = 1;
549 FILE **pp_file = calloc(1, sizeof(*pp_file));
550 if (pp_file == NULL) {
551 ERROR("mcelog: memory allocation failed: %s",
552 sstrerror(errno, errbuf, sizeof(errbuf)));
553 pthread_exit((void *)1);
556 pthread_cleanup_push(poll_worker_cleanup, pp_file);
560 int res = socket_adapter.receive(&socket_adapter, pp_file);
562 socket_adapter.close(&socket_adapter);
563 while (socket_adapter.reinit(&socket_adapter) != 0) {
564 nanosleep(&CDTIME_T_TO_TIMESPEC(MS_TO_CDTIME_T(MCELOG_POLL_TIMEOUT)),
569 /* timeout or no data to read */
573 if (*pp_file == NULL)
576 mcelog_memory_rec_t memory_record = {0};
577 while (parse_memory_info(*pp_file, &memory_record)) {
578 /* Check if location was successfully parsed */
579 if (memory_record.location[0] == '\0') {
580 memset(&memory_record, 0, sizeof(memory_record));
584 if (mcelog_dispatch_mem_notifications(&memory_record) != 0)
585 ERROR(MCELOG_PLUGIN ": Failed to submit memory errors notification");
586 if (mcelog_submit(&memory_record) != 0)
587 ERROR(MCELOG_PLUGIN ": Failed to submit memory errors");
588 memset(&memory_record, 0, sizeof(memory_record));
595 mcelog_thread_running = 0;
596 pthread_cleanup_pop(1);
600 static int mcelog_init(void) {
601 g_mcelog_config.dimms_list = llist_create();
602 int err = pthread_mutex_init(&g_mcelog_config.dimms_lock, NULL);
604 ERROR(MCELOG_PLUGIN ": plugin: failed to initialize cache lock");
608 if (socket_adapter.reinit(&socket_adapter) != 0) {
609 ERROR(MCELOG_PLUGIN ": Cannot connect to client socket");
613 if (plugin_thread_create(&g_mcelog_config.tid, NULL, poll_worker, NULL,
615 ERROR(MCELOG_PLUGIN ": Error creating poll thread.");
621 static int get_memory_machine_checks(void) {
622 static const char dump[] = "dump all bios\n";
623 int ret = socket_adapter.write(&socket_adapter, dump, sizeof(dump));
625 ERROR(MCELOG_PLUGIN ": SENT DUMP REQUEST FAILED");
627 DEBUG(MCELOG_PLUGIN ": SENT DUMP REQUEST OK");
631 static int mcelog_read(__attribute__((unused)) user_data_t *ud) {
632 DEBUG(MCELOG_PLUGIN ": %s", __FUNCTION__);
634 if (get_memory_machine_checks() != 0)
635 ERROR(MCELOG_PLUGIN ": MACHINE CHECK INFO NOT AVAILABLE");
640 static int mcelog_shutdown(void) {
642 if (mcelog_thread_running) {
643 pthread_cancel(g_mcelog_config.tid);
644 if (pthread_join(g_mcelog_config.tid, NULL) != 0) {
645 ERROR(MCELOG_PLUGIN ": Stopping thread failed.");
649 pthread_mutex_lock(&g_mcelog_config.dimms_lock);
650 mcelog_free_dimms_list_records(g_mcelog_config.dimms_list);
651 llist_destroy(g_mcelog_config.dimms_list);
652 pthread_mutex_unlock(&g_mcelog_config.dimms_lock);
653 pthread_mutex_destroy(&g_mcelog_config.dimms_lock);
654 g_mcelog_config.dimms_list = NULL;
655 ret = socket_adapter.close(&socket_adapter) || ret;
656 pthread_rwlock_destroy(&(socket_adapter.lock));
660 void module_register(void) {
661 plugin_register_complex_config(MCELOG_PLUGIN, mcelog_config);
662 plugin_register_init(MCELOG_PLUGIN, mcelog_init);
663 plugin_register_complex_read(NULL, MCELOG_PLUGIN, mcelog_read, 0, NULL);
664 plugin_register_shutdown(MCELOG_PLUGIN, mcelog_shutdown);