static ssize_t dasd_stats_proc_write(struct file *file,
const char __user *user_buf, size_t user_len, loff_t *pos)
{
#ifdef CONFIG_DASD_PROFILE
char *buffer, *str;
int rc;
if (user_len > 65536)
user_len = 65536;
buffer = dasd_get_user_string(user_buf, user_len);
if (IS_ERR(buffer))
return PTR_ERR(buffer);
/* */
str = skip_spaces(buffer);
if (strncmp(str, "set", 3) == 0 && isspace(str[3])) {
/* */
str = skip_spaces(str + 4);
if (strcmp(str, "on") == 0) {
/* */
rc = dasd_stats_all_block_on();
if (rc) {
dasd_stats_all_block_off();
goto out_error;
}
dasd_global_profile_reset();
dasd_global_profile_level = DASD_PROFILE_ON;
pr_info("The statistics feature has been switched "
"on\n");
} else if (strcmp(str, "off") == 0) {
/* */
dasd_global_profile_level = DASD_PROFILE_OFF;
dasd_global_profile_reset();
dasd_stats_all_block_off();
pr_info("The statistics feature has been switched "
"off\n");
} else
goto out_parse_error;
} else if (strncmp(str, "reset", 5) == 0) {
/* */
dasd_global_profile_reset();
dasd_stats_all_block_reset();
pr_info("The statistics have been reset\n");
} else
goto out_parse_error;
vfree(buffer);
return user_len;
out_parse_error:
rc = -EINVAL;
pr_warning("%s is not a supported value for /proc/dasd/statistics\n",
str);
out_error:
vfree(buffer);
return rc;
#else
pr_warning("/proc/dasd/statistics: is not activated in this kernel\n");
return user_len;
#endif /* */
}
static ssize_t dasd_stats_proc_write(struct file *file,
const char __user *user_buf, size_t user_len, loff_t *pos)
{
#ifdef CONFIG_DASD_PROFILE
char *buffer, *str;
if (user_len > 65536)
user_len = 65536;
buffer = dasd_get_user_string(user_buf, user_len);
if (IS_ERR(buffer))
return PTR_ERR(buffer);
<<<<<<< HEAD
static int
dasd_statistics_write(struct file *file, const char __user *user_buf,
unsigned long user_len, void *data)
{
#ifdef CONFIG_DASD_PROFILE
char *buffer, *str;
if (user_len > 65536)
user_len = 65536;
buffer = dasd_get_user_string(user_buf, user_len);
if (IS_ERR(buffer))
return PTR_ERR(buffer);
MESSAGE_LOG(KERN_INFO, "/proc/dasd/statictics: '%s'", buffer);
/* check for valid verbs */
for (str = buffer; isspace(*str); str++);
if (strncmp(str, "set", 3) == 0 && isspace(str[3])) {
/* 'set xxx' was given */
for (str = str + 4; isspace(*str); str++);
if (strcmp(str, "on") == 0) {
/* switch on statistics profiling */
dasd_profile_level = DASD_PROFILE_ON;
MESSAGE(KERN_INFO, "%s", "Statistics switched on");
} else if (strcmp(str, "off") == 0) {
/* switch off and reset statistics profiling */
memset(&dasd_global_profile,
0, sizeof (struct dasd_profile_info_t));
dasd_profile_level = DASD_PROFILE_OFF;
MESSAGE(KERN_INFO, "%s", "Statistics switched off");
} else
goto out_error;
} else if (strncmp(str, "reset", 5) == 0) {
/* reset the statistics */
memset(&dasd_global_profile, 0,
sizeof (struct dasd_profile_info_t));
MESSAGE(KERN_INFO, "%s", "Statistics reset");
} else
goto out_error;
kfree(buffer);
return user_len;
out_error:
MESSAGE(KERN_WARNING, "%s",
"/proc/dasd/statistics: only 'set on', 'set off' "
"and 'reset' are supported verbs");
kfree(buffer);
return -EINVAL;
#else
MESSAGE(KERN_WARNING, "%s",
"/proc/dasd/statistics: is not activated in this kernel");
return user_len;
#endif /* CONFIG_DASD_PROFILE */
}
static int
dasd_statistics_write(struct file *file, const char __user *user_buf,
unsigned long user_len, void *data)
{
#ifdef CONFIG_DASD_PROFILE
char *buffer, *str;
if (user_len > 65536)
user_len = 65536;
buffer = dasd_get_user_string(user_buf, user_len);
if (IS_ERR(buffer))
return PTR_ERR(buffer);
DBF_EVENT(DBF_DEBUG, "/proc/dasd/statictics: '%s'\n", buffer);
/* check for valid verbs */
for (str = buffer; isspace(*str); str++);
if (strncmp(str, "set", 3) == 0 && isspace(str[3])) {
/* 'set xxx' was given */
for (str = str + 4; isspace(*str); str++);
if (strcmp(str, "on") == 0) {
/* switch on statistics profiling */
dasd_profile_level = DASD_PROFILE_ON;
pr_info("The statistics feature has been switched "
"on\n");
} else if (strcmp(str, "off") == 0) {
/* switch off and reset statistics profiling */
memset(&dasd_global_profile,
0, sizeof (struct dasd_profile_info_t));
dasd_profile_level = DASD_PROFILE_OFF;
pr_info("The statistics feature has been switched "
"off\n");
} else
goto out_error;
} else if (strncmp(str, "reset", 5) == 0) {
/* reset the statistics */
memset(&dasd_global_profile, 0,
sizeof (struct dasd_profile_info_t));
pr_info("The statistics have been reset\n");
} else
goto out_error;
kfree(buffer);
return user_len;
out_error:
pr_warning("%s is not a supported value for /proc/dasd/statistics\n",
str);
kfree(buffer);
return -EINVAL;
#else
pr_warning("/proc/dasd/statistics: is not activated in this kernel\n");
return user_len;
#endif /* CONFIG_DASD_PROFILE */
}
