* Exports appldata_register_ops() and appldata_unregister_ops() for the
* data gathering modules.
*
- * Copyright (C) 2003 IBM Corporation, IBM Deutschland Entwicklung GmbH.
+ * Copyright (C) 2003,2006 IBM Corporation, IBM Deutschland Entwicklung GmbH.
*
- * Author: Gerald Schaefer <geraldsc@de.ibm.com>
+ * Author: Gerald Schaefer <gerald.schaefer@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 <linux/interrupt.h>
#include <linux/proc_fs.h>
-#include <linux/page-flags.h>
+#include <linux/mm.h>
#include <linux/swap.h>
#include <linux/pagemap.h>
#include <linux/sysctl.h>
+#include <linux/notifier.h>
+#include <linux/cpu.h>
+#include <linux/workqueue.h>
+#include <asm/appldata.h>
#include <asm/timer.h>
-//#include <linux/kernel_stat.h>
+#include <asm/uaccess.h>
+#include <asm/io.h>
+#include <asm/smp.h>
#include "appldata.h"
#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);
+ 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);
+ size_t *lenp, loff_t *ppos);
static struct ctl_table_header *appldata_sysctl_header;
static struct ctl_table appldata_table[] = {
*/
DEFINE_PER_CPU(struct vtimer_list, appldata_timer);
static atomic_t appldata_expire_count = ATOMIC_INIT(0);
-static struct appldata_mod_vtimer_args {
- struct vtimer_list *timer;
- u64 expires;
-} appldata_mod_vtimer_args;
-static spinlock_t appldata_timer_lock = SPIN_LOCK_UNLOCKED;
+static DEFINE_SPINLOCK(appldata_timer_lock);
static int appldata_interval = APPLDATA_CPU_INTERVAL;
static int appldata_timer_active;
/*
- * Tasklet
+ * Work queue
*/
-static struct tasklet_struct appldata_tasklet_struct;
+static struct workqueue_struct *appldata_wq;
+static void appldata_work_fn(struct work_struct *work);
+static DECLARE_WORK(appldata_work, appldata_work_fn);
+
/*
* Ops list
*/
-static spinlock_t appldata_ops_lock = SPIN_LOCK_UNLOCKED;
+static DEFINE_SPINLOCK(appldata_ops_lock);
static LIST_HEAD(appldata_ops_list);
-/************************* timer, tasklet, DIAG ******************************/
+/*************************** timer, work, DIAG *******************************/
/*
* appldata_timer_function()
*
- * schedule tasklet and reschedule timer
+ * schedule work and reschedule timer
*/
-static void appldata_timer_function(unsigned long data, struct pt_regs *regs)
+static void appldata_timer_function(unsigned long data)
{
P_DEBUG(" -= Timer =-\n");
- P_DEBUG("CPU: %i, expire: %i\n", smp_processor_id(),
+ 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);
+ queue_work(appldata_wq, (struct work_struct *) data);
}
}
/*
- * appldata_tasklet_function()
+ * appldata_work_fn()
*
* call data gathering function for each (active) module
*/
-static void appldata_tasklet_function(unsigned long data)
+static void appldata_work_fn(struct work_struct *work)
{
struct list_head *lh;
struct appldata_ops *ops;
int i;
- P_DEBUG(" -= Tasklet =-\n");
+ P_DEBUG(" -= Work Queue =-\n");
i = 0;
spin_lock(&appldata_ops_lock);
list_for_each(lh, &appldata_ops_list) {
spin_unlock(&appldata_ops_lock);
}
+/*
+ * appldata_diag()
+ *
+ * prepare parameter list, issue DIAG 0xDC
+ */
+int appldata_diag(char record_nr, u16 function, unsigned long buffer,
+ u16 length, char *mod_lvl)
+{
+ struct appldata_product_id id = {
+ .prod_nr = {0xD3, 0xC9, 0xD5, 0xE4,
+ 0xE7, 0xD2, 0xD9}, /* "LINUXKR" */
+ .prod_fn = 0xD5D3, /* "NL" */
+ .version_nr = 0xF2F6, /* "26" */
+ .release_nr = 0xF0F1, /* "01" */
+ };
+
+ id.record_nr = record_nr;
+ id.mod_lvl = (mod_lvl[0]) << 8 | mod_lvl[1];
+ return appldata_asm(&id, function, (void *) buffer, length);
+}
+/************************ timer, work, 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 appldata_mod_vtimer_args *args = p;
+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_diag()
+ * __appldata_vtimer_setup()
*
- * prepare parameter list, issue DIAG 0xDC
+ * Add, delete or modify virtual timers on all online cpus.
+ * The caller needs to get the appldata_timer_lock spinlock.
*/
-static int appldata_diag(char record_nr, u16 function, unsigned long buffer,
- u16 length)
+static void
+__appldata_vtimer_setup(int cmd)
{
- 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)
- };
+ u64 per_cpu_interval;
+ int i;
- 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;
+ 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);
+ }
+ }
}
-/********************** timer, tasklet, DIAG <END> ***************************/
-
-/****************************** /proc stuff **********************************/
/*
* appldata_timer_handler()
*
*/
static int
appldata_timer_handler(ctl_table *ctl, int write, struct file *filp,
- void __user *buffer, size_t *lenp)
+ void __user *buffer, size_t *lenp, loff_t *ppos)
{
- int len, i;
+ int len;
char buf[2];
- u64 per_cpu_interval;
- if (!*lenp || filp->f_pos) {
+ if (!*lenp || *ppos) {
*lenp = 0;
return 0;
}
return -EFAULT;
goto out;
}
- per_cpu_interval = (u64) (appldata_interval*1000 /
- num_online_cpus()) * TOD_MICRO;
len = *lenp;
if (copy_from_user(buf, buffer, len > sizeof(buf) ? sizeof(buf) : len))
return -EFAULT;
spin_lock(&appldata_timer_lock);
- per_cpu_interval = (u64) (appldata_interval*1000 /
- num_online_cpus()) * TOD_MICRO;
- if ((buf[0] == '1') && (!appldata_timer_active)) {
- for (i = 0; i < num_online_cpus(); 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");
- } else if ((buf[0] == '0') && (appldata_timer_active)) {
- for (i = 0; i < num_online_cpus(); i++) {
- del_virt_timer(&per_cpu(appldata_timer, i));
- }
- appldata_timer_active = 0;
- P_INFO("Monitoring timer stopped.\n");
- }
+ 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;
- filp->f_pos += len;
+ *ppos += len;
return 0;
}
*/
static int
appldata_interval_handler(ctl_table *ctl, int write, struct file *filp,
- void __user *buffer, size_t *lenp)
+ void __user *buffer, size_t *lenp, loff_t *ppos)
{
- int len, i, interval;
+ int len, interval;
char buf[16];
- u64 per_cpu_interval;
- if (!*lenp || filp->f_pos) {
+ if (!*lenp || *ppos) {
*lenp = 0;
return 0;
}
if (copy_from_user(buf, buffer, len > sizeof(buf) ? sizeof(buf) : len)) {
return -EFAULT;
}
+ interval = 0;
sscanf(buf, "%i", &interval);
if (interval <= 0) {
P_ERROR("Timer CPU interval has to be > 0!\n");
}
spin_lock(&appldata_timer_lock);
- per_cpu_interval = (u64) (interval*1000 / num_online_cpus()) * TOD_MICRO;
appldata_interval = interval;
- if (appldata_timer_active) {
- for (i = 0; i < num_online_cpus(); i++) {
- appldata_mod_vtimer_args.timer =
- &per_cpu(appldata_timer, i);
- appldata_mod_vtimer_args.expires =
- per_cpu_interval;
- smp_call_function_on(
- appldata_mod_vtimer_wrap,
- &appldata_mod_vtimer_args,
- 0, 1, i);
- }
- }
+ __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;
- filp->f_pos += len;
+ *ppos += len;
return 0;
}
*/
static int
appldata_generic_handler(ctl_table *ctl, int write, struct file *filp,
- void __user *buffer, size_t *lenp)
+ void __user *buffer, size_t *lenp, loff_t *ppos)
{
struct appldata_ops *ops = NULL, *tmp_ops;
int rc, len, found;
struct list_head *lh;
found = 0;
- spin_lock_bh(&appldata_ops_lock);
+ spin_lock(&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) {
}
}
if (!found) {
- spin_unlock_bh(&appldata_ops_lock);
+ spin_unlock(&appldata_ops_lock);
return -ENODEV;
}
ops = ctl->data;
if (!try_module_get(ops->owner)) { // protect this function
- spin_unlock_bh(&appldata_ops_lock);
+ spin_unlock(&appldata_ops_lock);
return -ENODEV;
}
- spin_unlock_bh(&appldata_ops_lock);
+ spin_unlock(&appldata_ops_lock);
- if (!*lenp || filp->f_pos) {
+ if (!*lenp || *ppos) {
*lenp = 0;
module_put(ops->owner);
return 0;
return -EFAULT;
}
- spin_lock_bh(&appldata_ops_lock);
+ spin_lock(&appldata_ops_lock);
if ((buf[0] == '1') && (ops->active == 0)) {
- if (!try_module_get(ops->owner)) { // protect tasklet
- spin_unlock_bh(&appldata_ops_lock);
+ // protect work queue callback
+ if (!try_module_get(ops->owner)) {
+ spin_unlock(&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);
+ (unsigned long) ops->data, ops->size,
+ ops->mod_lvl);
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);
+ ops->active = 1;
}
} 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);
+ (unsigned long) ops->data, ops->size,
+ ops->mod_lvl);
if (rc != 0) {
P_ERROR("STOP DIAG 0xDC for %s failed, "
"return code: %d\n", ops->name, rc);
}
module_put(ops->owner);
}
- spin_unlock_bh(&appldata_ops_lock);
+ spin_unlock(&appldata_ops_lock);
out:
*lenp = len;
- filp->f_pos += len;
+ *ppos += len;
module_put(ops->owner);
return 0;
}
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);
+ ops->ctl_table = kzalloc(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);
+ spin_lock(&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",
APPLDATA_PROC_NAME_LENGTH) == 0) {
P_ERROR("Name \"%s\" already registered!\n", ops->name);
kfree(ops->ctl_table);
- spin_unlock_bh(&appldata_ops_lock);
+ spin_unlock(&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);
+ spin_unlock(&appldata_ops_lock);
return -EBUSY;
}
}
list_add(&ops->list, &appldata_ops_list);
- spin_unlock_bh(&appldata_ops_lock);
+ spin_unlock(&appldata_ops_lock);
ops->ctl_table[0].ctl_name = CTL_APPLDATA;
ops->ctl_table[0].procname = appldata_proc_name;
*/
void appldata_unregister_ops(struct appldata_ops *ops)
{
- spin_lock_bh(&appldata_ops_lock);
- unregister_sysctl_table(ops->sysctl_header);
+ void *table;
+ spin_lock(&appldata_ops_lock);
list_del(&ops->list);
- kfree(ops->ctl_table);
+ /* at that point any incoming access will fail */
+ table = ops->ctl_table;
ops->ctl_table = NULL;
- spin_unlock_bh(&appldata_ops_lock);
+ spin_unlock(&appldata_ops_lock);
+ unregister_sysctl_table(ops->sysctl_header);
+ kfree(table);
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_work;
+ 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());
+ queue_work(appldata_wq, &appldata_work);
+ }
+ spin_lock(&appldata_timer_lock);
+ __appldata_vtimer_setup(APPLDATA_MOD_TIMER);
+ spin_unlock(&appldata_timer_lock);
+}
+
+static int __cpuinit
+appldata_cpu_notify(struct notifier_block *self,
+ unsigned long action, void *hcpu)
+{
+ switch (action) {
+ case CPU_ONLINE:
+ appldata_online_cpu((long) hcpu);
+ break;
+ case CPU_DEAD:
+ appldata_offline_cpu((long) hcpu);
+ break;
+ default:
+ break;
+ }
+ return NOTIFY_OK;
+}
+
+static struct notifier_block appldata_nb = {
+ .notifier_call = appldata_cpu_notify,
+};
+
/*
* appldata_init()
*
- * init timer and tasklet, register /proc entries
+ * init timer, register /proc entries
*/
static int __init appldata_init(void)
{
P_DEBUG("sizeof(parameter_list) = %lu\n",
sizeof(struct appldata_parameter_list));
- for (i = 0; i < num_online_cpus(); i++) {
- init_virt_timer(&per_cpu(appldata_timer, i));
- per_cpu(appldata_timer, i).function = appldata_timer_function;
- per_cpu(appldata_timer, i).data = (unsigned long)
- &appldata_tasklet_struct;
+ appldata_wq = create_singlethread_workqueue("appldata");
+ if (!appldata_wq) {
+ P_ERROR("Could not create work queue\n");
+ return -ENOMEM;
}
- atomic_set(&appldata_expire_count, num_online_cpus());
+
+ for_each_online_cpu(i)
+ appldata_online_cpu(i);
+
+ /* Register cpu hotplug notifier */
+ register_hotcpu_notifier(&appldata_nb);
appldata_sysctl_header = register_sysctl_table(appldata_dir_table, 1);
#ifdef 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
+ * stop timer, unregister /proc entries
*/
static void __exit appldata_exit(void)
{
/*
* ops list should be empty, but just in case something went wrong...
*/
- spin_lock_bh(&appldata_ops_lock);
+ spin_lock(&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);
+ (unsigned long) ops->data, ops->size,
+ ops->mod_lvl);
if (rc != 0) {
P_ERROR("STOP DIAG 0xDC for %s failed, "
"return code: %d\n", ops->name, rc);
}
}
- spin_unlock_bh(&appldata_ops_lock);
+ spin_unlock(&appldata_ops_lock);
+
+ for_each_online_cpu(i)
+ appldata_offline_cpu(i);
- for (i = 0; i < num_online_cpus(); i++) {
- del_virt_timer(&per_cpu(appldata_timer, i));
- }
appldata_timer_active = 0;
unregister_sysctl_table(appldata_sysctl_header);
- tasklet_kill(&appldata_tasklet_struct);
+ destroy_workqueue(appldata_wq);
P_DEBUG("... module unloaded!\n");
}
/**************************** init / exit <END> ******************************/
EXPORT_SYMBOL_GPL(appldata_register_ops);
EXPORT_SYMBOL_GPL(appldata_unregister_ops);
+EXPORT_SYMBOL_GPL(appldata_diag);
#ifdef MODULE
/*
#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);
git://git.onelab.eu / linux-2.6.git / blobdiff