summaryrefslogtreecommitdiff
path: root/arch/s390/appldata/appldata_base.c
diff options
context:
space:
mode:
Diffstat (limited to 'arch/s390/appldata/appldata_base.c')
-rw-r--r--arch/s390/appldata/appldata_base.c770
1 files changed, 770 insertions, 0 deletions
diff --git a/arch/s390/appldata/appldata_base.c b/arch/s390/appldata/appldata_base.c
new file mode 100644
index 000000000000..01ae1964c938
--- /dev/null
+++ b/arch/s390/appldata/appldata_base.c
@@ -0,0 +1,770 @@
+/*
+ * arch/s390/appldata/appldata_base.c
+ *
+ * Base infrastructure for Linux-z/VM Monitor Stream, Stage 1.
+ * Exports appldata_register_ops() and appldata_unregister_ops() for the
+ * data gathering modules.
+ *
+ * Copyright (C) 2003 IBM Corporation, IBM Deutschland Entwicklung GmbH.
+ *
+ * Author: Gerald Schaefer <geraldsc@de.ibm.com>
+ */
+
+#include <linux/config.h>
+#include <linux/module.h>
+#include <linux/init.h>
+#include <linux/slab.h>
+#include <linux/errno.h>
+#include <asm/uaccess.h>
+#include <asm/io.h>
+#include <asm/smp.h>
+#include <linux/interrupt.h>
+#include <linux/proc_fs.h>
+#include <linux/page-flags.h>
+#include <linux/swap.h>
+#include <linux/pagemap.h>
+#include <linux/sysctl.h>
+#include <asm/timer.h>
+//#include <linux/kernel_stat.h>
+#include <linux/notifier.h>
+#include <linux/cpu.h>
+
+#include "appldata.h"
+
+
+#define MY_PRINT_NAME "appldata" /* for debug messages, etc. */
+#define APPLDATA_CPU_INTERVAL 10000 /* default (CPU) time for
+ sampling interval in
+ milliseconds */
+
+#define TOD_MICRO 0x01000 /* nr. of TOD clock units
+ for 1 microsecond */
+#ifndef CONFIG_ARCH_S390X
+
+#define APPLDATA_START_INTERVAL_REC 0x00 /* Function codes for */
+#define APPLDATA_STOP_REC 0x01 /* DIAG 0xDC */
+#define APPLDATA_GEN_EVENT_RECORD 0x02
+#define APPLDATA_START_CONFIG_REC 0x03
+
+#else
+
+#define APPLDATA_START_INTERVAL_REC 0x80
+#define APPLDATA_STOP_REC 0x81
+#define APPLDATA_GEN_EVENT_RECORD 0x82
+#define APPLDATA_START_CONFIG_REC 0x83
+
+#endif /* CONFIG_ARCH_S390X */
+
+
+/*
+ * Parameter list for DIAGNOSE X'DC'
+ */
+#ifndef CONFIG_ARCH_S390X
+struct appldata_parameter_list {
+ u16 diag; /* The DIAGNOSE code X'00DC' */
+ u8 function; /* The function code for the DIAGNOSE */
+ u8 parlist_length; /* Length of the parameter list */
+ u32 product_id_addr; /* Address of the 16-byte product ID */
+ u16 reserved;
+ u16 buffer_length; /* Length of the application data buffer */
+ u32 buffer_addr; /* Address of the application data buffer */
+};
+#else
+struct appldata_parameter_list {
+ u16 diag;
+ u8 function;
+ u8 parlist_length;
+ u32 unused01;
+ u16 reserved;
+ u16 buffer_length;
+ u32 unused02;
+ u64 product_id_addr;
+ u64 buffer_addr;
+};
+#endif /* CONFIG_ARCH_S390X */
+
+/*
+ * /proc entries (sysctl)
+ */
+static const char appldata_proc_name[APPLDATA_PROC_NAME_LENGTH] = "appldata";
+static int appldata_timer_handler(ctl_table *ctl, int write, struct file *filp,
+ void __user *buffer, size_t *lenp, loff_t *ppos);
+static int appldata_interval_handler(ctl_table *ctl, int write,
+ struct file *filp,
+ void __user *buffer,
+ size_t *lenp, loff_t *ppos);
+
+static struct ctl_table_header *appldata_sysctl_header;
+static struct ctl_table appldata_table[] = {
+ {
+ .ctl_name = CTL_APPLDATA_TIMER,
+ .procname = "timer",
+ .mode = S_IRUGO | S_IWUSR,
+ .proc_handler = &appldata_timer_handler,
+ },
+ {
+ .ctl_name = CTL_APPLDATA_INTERVAL,
+ .procname = "interval",
+ .mode = S_IRUGO | S_IWUSR,
+ .proc_handler = &appldata_interval_handler,
+ },
+ { .ctl_name = 0 }
+};
+
+static struct ctl_table appldata_dir_table[] = {
+ {
+ .ctl_name = CTL_APPLDATA,
+ .procname = appldata_proc_name,
+ .maxlen = 0,
+ .mode = S_IRUGO | S_IXUGO,
+ .child = appldata_table,
+ },
+ { .ctl_name = 0 }
+};
+
+/*
+ * Timer
+ */
+DEFINE_PER_CPU(struct vtimer_list, appldata_timer);
+static atomic_t appldata_expire_count = ATOMIC_INIT(0);
+
+static DEFINE_SPINLOCK(appldata_timer_lock);
+static int appldata_interval = APPLDATA_CPU_INTERVAL;
+static int appldata_timer_active;
+
+/*
+ * Tasklet
+ */
+static struct tasklet_struct appldata_tasklet_struct;
+
+/*
+ * Ops list
+ */
+static DEFINE_SPINLOCK(appldata_ops_lock);
+static LIST_HEAD(appldata_ops_list);
+
+
+/************************* timer, tasklet, DIAG ******************************/
+/*
+ * appldata_timer_function()
+ *
+ * schedule tasklet and reschedule timer
+ */
+static void appldata_timer_function(unsigned long data, struct pt_regs *regs)
+{
+ P_DEBUG(" -= Timer =-\n");
+ P_DEBUG("CPU: %i, expire_count: %i\n", smp_processor_id(),
+ atomic_read(&appldata_expire_count));
+ if (atomic_dec_and_test(&appldata_expire_count)) {
+ atomic_set(&appldata_expire_count, num_online_cpus());
+ tasklet_schedule((struct tasklet_struct *) data);
+ }
+}
+
+/*
+ * appldata_tasklet_function()
+ *
+ * call data gathering function for each (active) module
+ */
+static void appldata_tasklet_function(unsigned long data)
+{
+ struct list_head *lh;
+ struct appldata_ops *ops;
+ int i;
+
+ P_DEBUG(" -= Tasklet =-\n");
+ i = 0;
+ spin_lock(&appldata_ops_lock);
+ list_for_each(lh, &appldata_ops_list) {
+ ops = list_entry(lh, struct appldata_ops, list);
+ P_DEBUG("list_for_each loop: %i) active = %u, name = %s\n",
+ ++i, ops->active, ops->name);
+ if (ops->active == 1) {
+ ops->callback(ops->data);
+ }
+ }
+ spin_unlock(&appldata_ops_lock);
+}
+
+/*
+ * appldata_diag()
+ *
+ * prepare parameter list, issue DIAG 0xDC
+ */
+static int appldata_diag(char record_nr, u16 function, unsigned long buffer,
+ u16 length)
+{
+ unsigned long ry;
+ struct appldata_product_id {
+ char prod_nr[7]; /* product nr. */
+ char prod_fn[2]; /* product function */
+ char record_nr; /* record nr. */
+ char version_nr[2]; /* version */
+ char release_nr[2]; /* release */
+ char mod_lvl[2]; /* modification lvl. */
+ } appldata_product_id = {
+ /* all strings are EBCDIC, record_nr is byte */
+ .prod_nr = {0xD3, 0xC9, 0xD5, 0xE4,
+ 0xE7, 0xD2, 0xD9}, /* "LINUXKR" */
+ .prod_fn = {0xD5, 0xD3}, /* "NL" */
+ .record_nr = record_nr,
+ .version_nr = {0xF2, 0xF6}, /* "26" */
+ .release_nr = {0xF0, 0xF1}, /* "01" */
+ .mod_lvl = {0xF0, 0xF0}, /* "00" */
+ };
+ struct appldata_parameter_list appldata_parameter_list = {
+ .diag = 0xDC,
+ .function = function,
+ .parlist_length =
+ sizeof(appldata_parameter_list),
+ .buffer_length = length,
+ .product_id_addr =
+ (unsigned long) &appldata_product_id,
+ .buffer_addr = virt_to_phys((void *) buffer)
+ };
+
+ if (!MACHINE_IS_VM)
+ return -ENOSYS;
+ ry = -1;
+ asm volatile(
+ "diag %1,%0,0xDC\n\t"
+ : "=d" (ry) : "d" (&(appldata_parameter_list)) : "cc");
+ return (int) ry;
+}
+/********************** timer, tasklet, DIAG <END> ***************************/
+
+
+/****************************** /proc stuff **********************************/
+
+/*
+ * appldata_mod_vtimer_wrap()
+ *
+ * wrapper function for mod_virt_timer(), because smp_call_function_on()
+ * accepts only one parameter.
+ */
+static void __appldata_mod_vtimer_wrap(void *p) {
+ struct {
+ struct vtimer_list *timer;
+ u64 expires;
+ } *args = p;
+ mod_virt_timer(args->timer, args->expires);
+}
+
+#define APPLDATA_ADD_TIMER 0
+#define APPLDATA_DEL_TIMER 1
+#define APPLDATA_MOD_TIMER 2
+
+/*
+ * __appldata_vtimer_setup()
+ *
+ * Add, delete or modify virtual timers on all online cpus.
+ * The caller needs to get the appldata_timer_lock spinlock.
+ */
+static void
+__appldata_vtimer_setup(int cmd)
+{
+ u64 per_cpu_interval;
+ int i;
+
+ switch (cmd) {
+ case APPLDATA_ADD_TIMER:
+ if (appldata_timer_active)
+ break;
+ per_cpu_interval = (u64) (appldata_interval*1000 /
+ num_online_cpus()) * TOD_MICRO;
+ for_each_online_cpu(i) {
+ per_cpu(appldata_timer, i).expires = per_cpu_interval;
+ smp_call_function_on(add_virt_timer_periodic,
+ &per_cpu(appldata_timer, i),
+ 0, 1, i);
+ }
+ appldata_timer_active = 1;
+ P_INFO("Monitoring timer started.\n");
+ break;
+ case APPLDATA_DEL_TIMER:
+ for_each_online_cpu(i)
+ del_virt_timer(&per_cpu(appldata_timer, i));
+ if (!appldata_timer_active)
+ break;
+ appldata_timer_active = 0;
+ atomic_set(&appldata_expire_count, num_online_cpus());
+ P_INFO("Monitoring timer stopped.\n");
+ break;
+ case APPLDATA_MOD_TIMER:
+ per_cpu_interval = (u64) (appldata_interval*1000 /
+ num_online_cpus()) * TOD_MICRO;
+ if (!appldata_timer_active)
+ break;
+ for_each_online_cpu(i) {
+ struct {
+ struct vtimer_list *timer;
+ u64 expires;
+ } args;
+ args.timer = &per_cpu(appldata_timer, i);
+ args.expires = per_cpu_interval;
+ smp_call_function_on(__appldata_mod_vtimer_wrap,
+ &args, 0, 1, i);
+ }
+ }
+}
+
+/*
+ * appldata_timer_handler()
+ *
+ * Start/Stop timer, show status of timer (0 = not active, 1 = active)
+ */
+static int
+appldata_timer_handler(ctl_table *ctl, int write, struct file *filp,
+ void __user *buffer, size_t *lenp, loff_t *ppos)
+{
+ int len;
+ char buf[2];
+
+ if (!*lenp || *ppos) {
+ *lenp = 0;
+ return 0;
+ }
+ if (!write) {
+ len = sprintf(buf, appldata_timer_active ? "1\n" : "0\n");
+ if (len > *lenp)
+ len = *lenp;
+ if (copy_to_user(buffer, buf, len))
+ return -EFAULT;
+ goto out;
+ }
+ len = *lenp;
+ if (copy_from_user(buf, buffer, len > sizeof(buf) ? sizeof(buf) : len))
+ return -EFAULT;
+ spin_lock(&appldata_timer_lock);
+ if (buf[0] == '1')
+ __appldata_vtimer_setup(APPLDATA_ADD_TIMER);
+ else if (buf[0] == '0')
+ __appldata_vtimer_setup(APPLDATA_DEL_TIMER);
+ spin_unlock(&appldata_timer_lock);
+out:
+ *lenp = len;
+ *ppos += len;
+ return 0;
+}
+
+/*
+ * appldata_interval_handler()
+ *
+ * Set (CPU) timer interval for collection of data (in milliseconds), show
+ * current timer interval.
+ */
+static int
+appldata_interval_handler(ctl_table *ctl, int write, struct file *filp,
+ void __user *buffer, size_t *lenp, loff_t *ppos)
+{
+ int len, interval;
+ char buf[16];
+
+ if (!*lenp || *ppos) {
+ *lenp = 0;
+ return 0;
+ }
+ if (!write) {
+ len = sprintf(buf, "%i\n", appldata_interval);
+ if (len > *lenp)
+ len = *lenp;
+ if (copy_to_user(buffer, buf, len))
+ return -EFAULT;
+ goto out;
+ }
+ len = *lenp;
+ if (copy_from_user(buf, buffer, len > sizeof(buf) ? sizeof(buf) : len)) {
+ return -EFAULT;
+ }
+ sscanf(buf, "%i", &interval);
+ if (interval <= 0) {
+ P_ERROR("Timer CPU interval has to be > 0!\n");
+ return -EINVAL;
+ }
+
+ spin_lock(&appldata_timer_lock);
+ appldata_interval = interval;
+ __appldata_vtimer_setup(APPLDATA_MOD_TIMER);
+ spin_unlock(&appldata_timer_lock);
+
+ P_INFO("Monitoring CPU interval set to %u milliseconds.\n",
+ interval);
+out:
+ *lenp = len;
+ *ppos += len;
+ return 0;
+}
+
+/*
+ * appldata_generic_handler()
+ *
+ * Generic start/stop monitoring and DIAG, show status of
+ * monitoring (0 = not in process, 1 = in process)
+ */
+static int
+appldata_generic_handler(ctl_table *ctl, int write, struct file *filp,
+ void __user *buffer, size_t *lenp, loff_t *ppos)
+{
+ struct appldata_ops *ops = NULL, *tmp_ops;
+ int rc, len, found;
+ char buf[2];
+ struct list_head *lh;
+
+ found = 0;
+ spin_lock_bh(&appldata_ops_lock);
+ list_for_each(lh, &appldata_ops_list) {
+ tmp_ops = list_entry(lh, struct appldata_ops, list);
+ if (&tmp_ops->ctl_table[2] == ctl) {
+ found = 1;
+ }
+ }
+ if (!found) {
+ spin_unlock_bh(&appldata_ops_lock);
+ return -ENODEV;
+ }
+ ops = ctl->data;
+ if (!try_module_get(ops->owner)) { // protect this function
+ spin_unlock_bh(&appldata_ops_lock);
+ return -ENODEV;
+ }
+ spin_unlock_bh(&appldata_ops_lock);
+
+ if (!*lenp || *ppos) {
+ *lenp = 0;
+ module_put(ops->owner);
+ return 0;
+ }
+ if (!write) {
+ len = sprintf(buf, ops->active ? "1\n" : "0\n");
+ if (len > *lenp)
+ len = *lenp;
+ if (copy_to_user(buffer, buf, len)) {
+ module_put(ops->owner);
+ return -EFAULT;
+ }
+ goto out;
+ }
+ len = *lenp;
+ if (copy_from_user(buf, buffer,
+ len > sizeof(buf) ? sizeof(buf) : len)) {
+ module_put(ops->owner);
+ return -EFAULT;
+ }
+
+ spin_lock_bh(&appldata_ops_lock);
+ if ((buf[0] == '1') && (ops->active == 0)) {
+ if (!try_module_get(ops->owner)) { // protect tasklet
+ spin_unlock_bh(&appldata_ops_lock);
+ module_put(ops->owner);
+ return -ENODEV;
+ }
+ ops->active = 1;
+ ops->callback(ops->data); // init record
+ rc = appldata_diag(ops->record_nr,
+ APPLDATA_START_INTERVAL_REC,
+ (unsigned long) ops->data, ops->size);
+ if (rc != 0) {
+ P_ERROR("START DIAG 0xDC for %s failed, "
+ "return code: %d\n", ops->name, rc);
+ module_put(ops->owner);
+ ops->active = 0;
+ } else {
+ P_INFO("Monitoring %s data enabled, "
+ "DIAG 0xDC started.\n", ops->name);
+ }
+ } else if ((buf[0] == '0') && (ops->active == 1)) {
+ ops->active = 0;
+ rc = appldata_diag(ops->record_nr, APPLDATA_STOP_REC,
+ (unsigned long) ops->data, ops->size);
+ if (rc != 0) {
+ P_ERROR("STOP DIAG 0xDC for %s failed, "
+ "return code: %d\n", ops->name, rc);
+ } else {
+ P_INFO("Monitoring %s data disabled, "
+ "DIAG 0xDC stopped.\n", ops->name);
+ }
+ module_put(ops->owner);
+ }
+ spin_unlock_bh(&appldata_ops_lock);
+out:
+ *lenp = len;
+ *ppos += len;
+ module_put(ops->owner);
+ return 0;
+}
+
+/*************************** /proc stuff <END> *******************************/
+
+
+/************************* module-ops management *****************************/
+/*
+ * appldata_register_ops()
+ *
+ * update ops list, register /proc/sys entries
+ */
+int appldata_register_ops(struct appldata_ops *ops)
+{
+ struct list_head *lh;
+ struct appldata_ops *tmp_ops;
+ int i;
+
+ i = 0;
+
+ if ((ops->size > APPLDATA_MAX_REC_SIZE) ||
+ (ops->size < 0)){
+ P_ERROR("Invalid size of %s record = %i, maximum = %i!\n",
+ ops->name, ops->size, APPLDATA_MAX_REC_SIZE);
+ return -ENOMEM;
+ }
+ if ((ops->ctl_nr == CTL_APPLDATA) ||
+ (ops->ctl_nr == CTL_APPLDATA_TIMER) ||
+ (ops->ctl_nr == CTL_APPLDATA_INTERVAL)) {
+ P_ERROR("ctl_nr %i already in use!\n", ops->ctl_nr);
+ return -EBUSY;
+ }
+ ops->ctl_table = kmalloc(4*sizeof(struct ctl_table), GFP_KERNEL);
+ if (ops->ctl_table == NULL) {
+ P_ERROR("Not enough memory for %s ctl_table!\n", ops->name);
+ return -ENOMEM;
+ }
+ memset(ops->ctl_table, 0, 4*sizeof(struct ctl_table));
+
+ spin_lock_bh(&appldata_ops_lock);
+ list_for_each(lh, &appldata_ops_list) {
+ tmp_ops = list_entry(lh, struct appldata_ops, list);
+ P_DEBUG("register_ops loop: %i) name = %s, ctl = %i\n",
+ ++i, tmp_ops->name, tmp_ops->ctl_nr);
+ P_DEBUG("Comparing %s (ctl %i) with %s (ctl %i)\n",
+ tmp_ops->name, tmp_ops->ctl_nr, ops->name,
+ ops->ctl_nr);
+ if (strncmp(tmp_ops->name, ops->name,
+ APPLDATA_PROC_NAME_LENGTH) == 0) {
+ P_ERROR("Name \"%s\" already registered!\n", ops->name);
+ kfree(ops->ctl_table);
+ spin_unlock_bh(&appldata_ops_lock);
+ return -EBUSY;
+ }
+ if (tmp_ops->ctl_nr == ops->ctl_nr) {
+ P_ERROR("ctl_nr %i already registered!\n", ops->ctl_nr);
+ kfree(ops->ctl_table);
+ spin_unlock_bh(&appldata_ops_lock);
+ return -EBUSY;
+ }
+ }
+ list_add(&ops->list, &appldata_ops_list);
+ spin_unlock_bh(&appldata_ops_lock);
+
+ ops->ctl_table[0].ctl_name = CTL_APPLDATA;
+ ops->ctl_table[0].procname = appldata_proc_name;
+ ops->ctl_table[0].maxlen = 0;
+ ops->ctl_table[0].mode = S_IRUGO | S_IXUGO;
+ ops->ctl_table[0].child = &ops->ctl_table[2];
+
+ ops->ctl_table[1].ctl_name = 0;
+
+ ops->ctl_table[2].ctl_name = ops->ctl_nr;
+ ops->ctl_table[2].procname = ops->name;
+ ops->ctl_table[2].mode = S_IRUGO | S_IWUSR;
+ ops->ctl_table[2].proc_handler = appldata_generic_handler;
+ ops->ctl_table[2].data = ops;
+
+ ops->ctl_table[3].ctl_name = 0;
+
+ ops->sysctl_header = register_sysctl_table(ops->ctl_table,1);
+
+ P_INFO("%s-ops registered!\n", ops->name);
+ return 0;
+}
+
+/*
+ * appldata_unregister_ops()
+ *
+ * update ops list, unregister /proc entries, stop DIAG if necessary
+ */
+void appldata_unregister_ops(struct appldata_ops *ops)
+{
+ spin_lock_bh(&appldata_ops_lock);
+ unregister_sysctl_table(ops->sysctl_header);
+ list_del(&ops->list);
+ kfree(ops->ctl_table);
+ ops->ctl_table = NULL;
+ spin_unlock_bh(&appldata_ops_lock);
+ P_INFO("%s-ops unregistered!\n", ops->name);
+}
+/********************** module-ops management <END> **************************/
+
+
+/******************************* init / exit *********************************/
+
+static void
+appldata_online_cpu(int cpu)
+{
+ init_virt_timer(&per_cpu(appldata_timer, cpu));
+ per_cpu(appldata_timer, cpu).function = appldata_timer_function;
+ per_cpu(appldata_timer, cpu).data = (unsigned long)
+ &appldata_tasklet_struct;
+ atomic_inc(&appldata_expire_count);
+ spin_lock(&appldata_timer_lock);
+ __appldata_vtimer_setup(APPLDATA_MOD_TIMER);
+ spin_unlock(&appldata_timer_lock);
+}
+
+static void
+appldata_offline_cpu(int cpu)
+{
+ del_virt_timer(&per_cpu(appldata_timer, cpu));
+ if (atomic_dec_and_test(&appldata_expire_count)) {
+ atomic_set(&appldata_expire_count, num_online_cpus());
+ tasklet_schedule(&appldata_tasklet_struct);
+ }
+ spin_lock(&appldata_timer_lock);
+ __appldata_vtimer_setup(APPLDATA_MOD_TIMER);
+ spin_unlock(&appldata_timer_lock);
+}
+
+static int
+appldata_cpu_notify(struct notifier_block *self,
+ unsigned long action, void *hcpu)
+{
+ switch (action) {
+ case CPU_ONLINE:
+ appldata_online_cpu((long) hcpu);
+ break;
+#ifdef CONFIG_HOTPLUG_CPU
+ case CPU_DEAD:
+ appldata_offline_cpu((long) hcpu);
+ break;
+#endif
+ default:
+ break;
+ }
+ return NOTIFY_OK;
+}
+
+static struct notifier_block __devinitdata appldata_nb = {
+ .notifier_call = appldata_cpu_notify,
+};
+
+/*
+ * appldata_init()
+ *
+ * init timer and tasklet, register /proc entries
+ */
+static int __init appldata_init(void)
+{
+ int i;
+
+ P_DEBUG("sizeof(parameter_list) = %lu\n",
+ sizeof(struct appldata_parameter_list));
+
+ for_each_online_cpu(i)
+ appldata_online_cpu(i);
+
+ /* Register cpu hotplug notifier */
+ register_cpu_notifier(&appldata_nb);
+
+ appldata_sysctl_header = register_sysctl_table(appldata_dir_table, 1);
+#ifdef MODULE
+ appldata_dir_table[0].de->owner = THIS_MODULE;
+ appldata_table[0].de->owner = THIS_MODULE;
+ appldata_table[1].de->owner = THIS_MODULE;
+#endif
+
+ tasklet_init(&appldata_tasklet_struct, appldata_tasklet_function, 0);
+ P_DEBUG("Base interface initialized.\n");
+ return 0;
+}
+
+/*
+ * appldata_exit()
+ *
+ * stop timer and tasklet, unregister /proc entries
+ */
+static void __exit appldata_exit(void)
+{
+ struct list_head *lh;
+ struct appldata_ops *ops;
+ int rc, i;
+
+ P_DEBUG("Unloading module ...\n");
+ /*
+ * ops list should be empty, but just in case something went wrong...
+ */
+ spin_lock_bh(&appldata_ops_lock);
+ list_for_each(lh, &appldata_ops_list) {
+ ops = list_entry(lh, struct appldata_ops, list);
+ rc = appldata_diag(ops->record_nr, APPLDATA_STOP_REC,
+ (unsigned long) ops->data, ops->size);
+ if (rc != 0) {
+ P_ERROR("STOP DIAG 0xDC for %s failed, "
+ "return code: %d\n", ops->name, rc);
+ }
+ }
+ spin_unlock_bh(&appldata_ops_lock);
+
+ for_each_online_cpu(i)
+ appldata_offline_cpu(i);
+
+ appldata_timer_active = 0;
+
+ unregister_sysctl_table(appldata_sysctl_header);
+
+ tasklet_kill(&appldata_tasklet_struct);
+ P_DEBUG("... module unloaded!\n");
+}
+/**************************** init / exit <END> ******************************/
+
+
+module_init(appldata_init);
+module_exit(appldata_exit);
+MODULE_LICENSE("GPL");
+MODULE_AUTHOR("Gerald Schaefer");
+MODULE_DESCRIPTION("Linux-VM Monitor Stream, base infrastructure");
+
+EXPORT_SYMBOL_GPL(appldata_register_ops);
+EXPORT_SYMBOL_GPL(appldata_unregister_ops);
+
+#ifdef MODULE
+/*
+ * Kernel symbols needed by appldata_mem and appldata_os modules.
+ * However, if this file is compiled as a module (for testing only), these
+ * symbols are not exported. In this case, we define them locally and export
+ * those.
+ */
+void si_swapinfo(struct sysinfo *val)
+{
+ val->freeswap = -1ul;
+ val->totalswap = -1ul;
+}
+
+unsigned long avenrun[3] = {-1 - FIXED_1/200, -1 - FIXED_1/200,
+ -1 - FIXED_1/200};
+int nr_threads = -1;
+
+void get_full_page_state(struct page_state *ps)
+{
+ memset(ps, -1, sizeof(struct page_state));
+}
+
+unsigned long nr_running(void)
+{
+ return -1;
+}
+
+unsigned long nr_iowait(void)
+{
+ return -1;
+}
+
+/*unsigned long nr_context_switches(void)
+{
+ return -1;
+}*/
+#endif /* MODULE */
+EXPORT_SYMBOL_GPL(si_swapinfo);
+EXPORT_SYMBOL_GPL(nr_threads);
+EXPORT_SYMBOL_GPL(avenrun);
+EXPORT_SYMBOL_GPL(get_full_page_state);
+EXPORT_SYMBOL_GPL(nr_running);
+EXPORT_SYMBOL_GPL(nr_iowait);
+//EXPORT_SYMBOL_GPL(nr_context_switches);
generated by cgit v1.2.3 (git 2.39.1) at 2024-12-18 14:26:59 +0000