* GPL HEADER END
*/
/*
- * Copyright 2008 Sun Microsystems, Inc. All rights reserved
+ * Copyright (c) 2008, 2010, Oracle and/or its affiliates. All rights reserved.
* Use is subject to license terms.
*/
/*
"Lustre kernel debug mask");
EXPORT_SYMBOL(libcfs_debug);
-int libcfs_debug_mb = -1;
-CFS_MODULE_PARM(libcfs_debug_mb, "i", int, 0644,
+unsigned int libcfs_debug_mb = 0;
+CFS_MODULE_PARM(libcfs_debug_mb, "i", uint, 0644,
"Total debug buffer size.");
EXPORT_SYMBOL(libcfs_debug_mb);
unsigned int libcfs_catastrophe;
EXPORT_SYMBOL(libcfs_catastrophe);
-unsigned int libcfs_panic_on_lbug = 0;
+unsigned int libcfs_watchdog_ratelimit = 300;
+EXPORT_SYMBOL(libcfs_watchdog_ratelimit);
+
+unsigned int libcfs_panic_on_lbug = 1;
CFS_MODULE_PARM(libcfs_panic_on_lbug, "i", uint, 0644,
"Lustre kernel panic on LBUG");
EXPORT_SYMBOL(libcfs_panic_on_lbug);
-atomic_t libcfs_kmemory = ATOMIC_INIT(0);
+cfs_atomic_t libcfs_kmemory = CFS_ATOMIC_INIT(0);
EXPORT_SYMBOL(libcfs_kmemory);
static cfs_waitq_t debug_ctlwq;
-char debug_file_path_arr[1024] = DEBUG_FILE_PATH_DEFAULT;
+char libcfs_debug_file_path_arr[PATH_MAX] = LIBCFS_DEBUG_FILE_PATH_DEFAULT;
/* We need to pass a pointer here, but elsewhere this must be a const */
-static char *debug_file_path = &debug_file_path_arr[0];
-CFS_MODULE_PARM(debug_file_path, "s", charp, 0644,
+char *libcfs_debug_file_path;
+CFS_MODULE_PARM(libcfs_debug_file_path, "s", charp, 0644,
"Path for dumping debug logs, "
"set 'NONE' to prevent log dumping");
const char *
libcfs_debug_subsys2str(int subsys)
{
- switch (subsys) {
+ switch (1 << subsys) {
default:
return NULL;
case S_UNDEFINED:
return "ldlm";
case S_LOV:
return "lov";
+ case S_LQUOTA:
+ return "lquota";
case S_LMV:
return "lmv";
case S_SEC:
const char *
libcfs_debug_dbg2str(int debug)
{
- switch (debug) {
+ switch (1 << debug) {
default:
return NULL;
case D_TRACE:
libcfs_debug_dbg2str;
int len = 0;
const char *token;
- int bit;
int i;
if (mask == 0) { /* "0" */
len = 1;
} else { /* space-separated tokens */
for (i = 0; i < 32; i++) {
- bit = 1 << i;
-
- if ((mask & bit) == 0)
+ if ((mask & (1 << i)) == 0)
continue;
- token = fn(bit);
+ token = fn(i);
if (token == NULL) /* unused bit */
continue;
}
int
-libcfs_debug_token2mask(int *mask, const char *str, int len, int is_subsys)
+libcfs_debug_str2mask(int *mask, const char *str, int is_subsys)
{
const char *(*fn)(int bit) = is_subsys ? libcfs_debug_subsys2str :
libcfs_debug_dbg2str;
- int i;
- int j;
- int bit;
- const char *token;
-
- /* match against known tokens */
- for (i = 0; i < 32; i++) {
- bit = 1 << i;
-
- token = fn(bit);
- if (token == NULL) /* unused? */
- continue;
-
- /* strcasecmp */
- for (j = 0; ; j++) {
- if (j == len) { /* end of token */
- if (token[j] == 0) {
- *mask = bit;
- return 0;
- }
- break;
- }
-
- if (token[j] == 0)
- break;
-
- if (str[j] == token[j])
- continue;
-
- if (str[j] < 'A' || 'Z' < str[j])
- break;
-
- if (str[j] - 'A' + 'a' != token[j])
- break;
- }
- }
-
- return -EINVAL; /* no match */
-}
-
-int
-libcfs_debug_str2mask(int *mask, const char *str, int is_subsys)
-{
int m = 0;
- char op = 0;
int matched;
int n;
int t;
if ((t = sscanf(str, "%i%n", &m, &matched)) >= 1 &&
matched == n) {
+ CWARN("You are trying to use a numerical value for the mask -"
+ " this will be deprecated in a future release.\n");
*mask = m;
return 0;
}
- /* <str> must be a list of debug tokens or numbers separated by
- * whitespace and optionally an operator ('+' or '-'). If an operator
- * appears first in <str>, '*mask' is used as the starting point
- * (relative), otherwise 0 is used (absolute). An operator applies to
- * all following tokens up to the next operator. */
-
- matched = 0;
- while (*str != 0) {
- while (isspace(*str)) /* skip whitespace */
- str++;
-
- if (*str == 0)
- break;
-
- if (*str == '+' || *str == '-') {
- op = *str++;
-
- /* op on first token == relative */
- if (!matched)
- m = *mask;
-
- while (isspace(*str)) /* skip whitespace */
- str++;
-
- if (*str == 0) /* trailing op */
- return -EINVAL;
- }
-
- /* find token length */
- for (n = 0; str[n] != 0 && !isspace(str[n]); n++);
-
- /* match token */
- if (libcfs_debug_token2mask(&t, str, n, is_subsys) != 0)
- return -EINVAL;
-
- matched = 1;
- if (op == '-')
- m &= ~t;
- else
- m |= t;
-
- str += n;
- }
-
- if (!matched)
- return -EINVAL;
-
- *mask = m;
- return 0;
+ return cfs_str2mask(str, fn, mask, is_subsys ? 0 : D_CANTMASK,
+ 0xffffffff);
}
/**
CFS_PUSH_JOURNAL;
- if (strncmp(debug_file_path_arr, "NONE", 4) != 0) {
+ if (strncmp(libcfs_debug_file_path_arr, "NONE", 4) != 0) {
snprintf(debug_file_name, sizeof(debug_file_name) - 1,
- "%s.%ld." LPLD, debug_file_path_arr,
+ "%s.%ld." LPLD, libcfs_debug_file_path_arr,
cfs_time_current_sec(), (long_ptr_t)arg);
- printk(KERN_ALERT "LustreError: dumping log to %s\n",
+ printk(CFS_KERN_ALERT "LustreError: dumping log to %s\n",
debug_file_name);
- tracefile_dump_all_pages(debug_file_name);
+ cfs_tracefile_dump_all_pages(debug_file_name);
libcfs_run_debug_log_upcall(debug_file_name);
}
CFS_POP_JOURNAL;
int libcfs_debug_dumplog_thread(void *arg)
{
- cfs_daemonize("");
libcfs_debug_dumplog_internal(arg);
cfs_waitq_signal(&debug_ctlwq);
return 0;
void libcfs_debug_dumplog(void)
{
- int rc;
cfs_waitlink_t wait;
+ cfs_task_t *dumper;
ENTRY;
/* we're being careful to ensure that the kernel thread is
* able to set our state to running as it exits before we
* get to schedule() */
cfs_waitlink_init(&wait);
- set_current_state(TASK_INTERRUPTIBLE);
+ cfs_set_current_state(CFS_TASK_INTERRUPTIBLE);
cfs_waitq_add(&debug_ctlwq, &wait);
- rc = cfs_kernel_thread(libcfs_debug_dumplog_thread,
- (void *)(long_ptr_t)cfs_curproc_pid(),
- CLONE_VM | CLONE_FS | CLONE_FILES);
- if (rc < 0)
- printk(KERN_ERR "LustreError: cannot start log dump thread: "
- "%d\n", rc);
+ dumper = cfs_kthread_run(libcfs_debug_dumplog_thread,
+ (void*)(long)cfs_curproc_pid(),
+ "libcfs_debug_dumper");
+ if (IS_ERR(dumper))
+ printk(CFS_KERN_ERR "LustreError: cannot start log dump thread:"
+ " %ld\n", PTR_ERR(dumper));
else
cfs_waitq_wait(&wait, CFS_TASK_INTERRUPTIBLE);
- /* be sure to teardown if kernel_thread() failed */
+ /* be sure to teardown if cfs_kernel_thread() failed */
cfs_waitq_del(&debug_ctlwq, &wait);
- set_current_state(TASK_RUNNING);
+ cfs_set_current_state(CFS_TASK_RUNNING);
}
int libcfs_debug_init(unsigned long bufsize)
{
int rc = 0;
- int max = libcfs_debug_mb;
+ unsigned int max = libcfs_debug_mb;
cfs_waitq_init(&debug_ctlwq);
- libcfs_console_max_delay = CDEBUG_DEFAULT_MAX_DELAY;
- libcfs_console_min_delay = CDEBUG_DEFAULT_MIN_DELAY;
+
+ if (libcfs_console_max_delay <= 0 || /* not set by user or */
+ libcfs_console_min_delay <= 0 || /* set to invalid values */
+ libcfs_console_min_delay >= libcfs_console_max_delay) {
+ libcfs_console_max_delay = CDEBUG_DEFAULT_MAX_DELAY;
+ libcfs_console_min_delay = CDEBUG_DEFAULT_MIN_DELAY;
+ }
+
+ if (libcfs_debug_file_path != NULL) {
+ memset(libcfs_debug_file_path_arr, 0, PATH_MAX);
+ strncpy(libcfs_debug_file_path_arr,
+ libcfs_debug_file_path, PATH_MAX-1);
+ }
+
/* If libcfs_debug_mb is set to an invalid value or uninitialized
* then just make the total buffers smp_num_cpus * TCD_MAX_PAGES */
- if (max > trace_max_debug_mb() || max < num_possible_cpus()) {
+ if (max > cfs_trace_max_debug_mb() || max < cfs_num_possible_cpus()) {
max = TCD_MAX_PAGES;
} else {
- max = (max / num_possible_cpus());
+ max = (max / cfs_num_possible_cpus());
max = (max << (20 - CFS_PAGE_SHIFT));
}
- rc = tracefile_init(max);
+ rc = cfs_tracefile_init(max);
if (rc == 0)
libcfs_register_panic_notifier();
int libcfs_debug_cleanup(void)
{
libcfs_unregister_panic_notifier();
- tracefile_exit();
+ cfs_tracefile_exit();
return 0;
}
int libcfs_debug_clear_buffer(void)
{
- trace_flush_pages();
+ cfs_trace_flush_pages();
return 0;
}
int libcfs_debug_mark_buffer(const char *text)
{
CDEBUG(D_TRACE,"***************************************************\n");
- CDEBUG(D_WARNING, "DEBUG MARKER: %s\n", text);
+ LCONSOLE(D_WARNING, "DEBUG MARKER: %s\n", text);
CDEBUG(D_TRACE,"***************************************************\n");
return 0;
void libcfs_debug_set_level(unsigned int debug_level)
{
- printk(KERN_WARNING "Lustre: Setting portals debug level to %08x\n",
+ printk(CFS_KERN_WARNING "Lustre: Setting portals debug level to %08x\n",
debug_level);
libcfs_debug = debug_level;
}
git://git.whamcloud.com / fs / lustre-release.git / blobdiff