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-rw-r--r--kernel/audit.c16
-rw-r--r--kernel/cpu.c32
-rw-r--r--kernel/exit.c2
-rw-r--r--kernel/hrtimer.c22
-rw-r--r--kernel/irq/devres.c2
-rw-r--r--kernel/kallsyms.c23
-rw-r--r--kernel/module.c22
-rw-r--r--kernel/params.c4
-rw-r--r--kernel/power/disk.c88
-rw-r--r--kernel/power/main.c41
-rw-r--r--kernel/power/swsusp.c2
-rw-r--r--kernel/power/user.c3
-rw-r--r--kernel/resource.c21
-rw-r--r--kernel/sched.c38
-rw-r--r--kernel/sysctl.c2
-rw-r--r--kernel/taskstats.c4
-rw-r--r--kernel/time.c4
-rw-r--r--kernel/time/clockevents.c69
-rw-r--r--kernel/time/jiffies.c2
-rw-r--r--kernel/time/ntp.c30
-rw-r--r--kernel/timer.c4
21 files changed, 199 insertions, 232 deletions
diff --git a/kernel/audit.c b/kernel/audit.c
index 76c9a11b72d6..4e9d20829681 100644
--- a/kernel/audit.c
+++ b/kernel/audit.c
@@ -151,7 +151,7 @@ struct audit_buffer {
static void audit_set_pid(struct audit_buffer *ab, pid_t pid)
{
- struct nlmsghdr *nlh = (struct nlmsghdr *)ab->skb->data;
+ struct nlmsghdr *nlh = nlmsg_hdr(ab->skb);
nlh->nlmsg_pid = pid;
}
@@ -750,7 +750,7 @@ static void audit_receive_skb(struct sk_buff *skb)
u32 rlen;
while (skb->len >= NLMSG_SPACE(0)) {
- nlh = (struct nlmsghdr *)skb->data;
+ nlh = nlmsg_hdr(skb);
if (nlh->nlmsg_len < sizeof(*nlh) || skb->len < nlh->nlmsg_len)
return;
rlen = NLMSG_ALIGN(nlh->nlmsg_len);
@@ -795,7 +795,7 @@ static int __init audit_init(void)
printk(KERN_INFO "audit: initializing netlink socket (%s)\n",
audit_default ? "enabled" : "disabled");
audit_sock = netlink_kernel_create(NETLINK_AUDIT, 0, audit_receive,
- THIS_MODULE);
+ NULL, THIS_MODULE);
if (!audit_sock)
audit_panic("cannot initialize netlink socket");
else
@@ -1073,7 +1073,7 @@ static void audit_log_vformat(struct audit_buffer *ab, const char *fmt,
goto out;
}
va_copy(args2, args);
- len = vsnprintf(skb->tail, avail, fmt, args);
+ len = vsnprintf(skb_tail_pointer(skb), avail, fmt, args);
if (len >= avail) {
/* The printk buffer is 1024 bytes long, so if we get
* here and AUDIT_BUFSIZ is at least 1024, then we can
@@ -1082,7 +1082,7 @@ static void audit_log_vformat(struct audit_buffer *ab, const char *fmt,
max_t(unsigned, AUDIT_BUFSIZ, 1+len-avail));
if (!avail)
goto out;
- len = vsnprintf(skb->tail, avail, fmt, args2);
+ len = vsnprintf(skb_tail_pointer(skb), avail, fmt, args2);
}
if (len > 0)
skb_put(skb, len);
@@ -1143,7 +1143,7 @@ void audit_log_hex(struct audit_buffer *ab, const unsigned char *buf,
return;
}
- ptr = skb->tail;
+ ptr = skb_tail_pointer(skb);
for (i=0; i<len; i++) {
*ptr++ = hex[(buf[i] & 0xF0)>>4]; /* Upper nibble */
*ptr++ = hex[buf[i] & 0x0F]; /* Lower nibble */
@@ -1175,7 +1175,7 @@ static void audit_log_n_string(struct audit_buffer *ab, size_t slen,
if (!avail)
return;
}
- ptr = skb->tail;
+ ptr = skb_tail_pointer(skb);
*ptr++ = '"';
memcpy(ptr, string, slen);
ptr += slen;
@@ -1268,7 +1268,7 @@ void audit_log_end(struct audit_buffer *ab)
audit_log_lost("rate limit exceeded");
} else {
if (audit_pid) {
- struct nlmsghdr *nlh = (struct nlmsghdr *)ab->skb->data;
+ struct nlmsghdr *nlh = nlmsg_hdr(ab->skb);
nlh->nlmsg_len = ab->skb->len - NLMSG_SPACE(0);
skb_queue_tail(&audit_skb_queue, ab->skb);
ab->skb = NULL;
diff --git a/kernel/cpu.c b/kernel/cpu.c
index 3d4206ada5c9..36e70845cfc3 100644
--- a/kernel/cpu.c
+++ b/kernel/cpu.c
@@ -254,6 +254,12 @@ int __cpuinit cpu_up(unsigned int cpu)
}
#ifdef CONFIG_SUSPEND_SMP
+/* Needed to prevent the microcode driver from requesting firmware in its CPU
+ * hotplug notifier during the suspend/resume.
+ */
+int suspend_cpu_hotplug;
+EXPORT_SYMBOL(suspend_cpu_hotplug);
+
static cpumask_t frozen_cpus;
int disable_nonboot_cpus(void)
@@ -261,16 +267,8 @@ int disable_nonboot_cpus(void)
int cpu, first_cpu, error = 0;
mutex_lock(&cpu_add_remove_lock);
- first_cpu = first_cpu(cpu_present_map);
- if (!cpu_online(first_cpu)) {
- error = _cpu_up(first_cpu);
- if (error) {
- printk(KERN_ERR "Could not bring CPU%d up.\n",
- first_cpu);
- goto out;
- }
- }
-
+ suspend_cpu_hotplug = 1;
+ first_cpu = first_cpu(cpu_online_map);
/* We take down all of the non-boot CPUs in one shot to avoid races
* with the userspace trying to use the CPU hotplug at the same time
*/
@@ -296,7 +294,7 @@ int disable_nonboot_cpus(void)
} else {
printk(KERN_ERR "Non-boot CPUs are not disabled\n");
}
-out:
+ suspend_cpu_hotplug = 0;
mutex_unlock(&cpu_add_remove_lock);
return error;
}
@@ -308,20 +306,22 @@ void enable_nonboot_cpus(void)
/* Allow everyone to use the CPU hotplug again */
mutex_lock(&cpu_add_remove_lock);
cpu_hotplug_disabled = 0;
- mutex_unlock(&cpu_add_remove_lock);
if (cpus_empty(frozen_cpus))
- return;
+ goto out;
+ suspend_cpu_hotplug = 1;
printk("Enabling non-boot CPUs ...\n");
for_each_cpu_mask(cpu, frozen_cpus) {
- error = cpu_up(cpu);
+ error = _cpu_up(cpu);
if (!error) {
printk("CPU%d is up\n", cpu);
continue;
}
- printk(KERN_WARNING "Error taking CPU%d up: %d\n",
- cpu, error);
+ printk(KERN_WARNING "Error taking CPU%d up: %d\n", cpu, error);
}
cpus_clear(frozen_cpus);
+ suspend_cpu_hotplug = 0;
+out:
+ mutex_unlock(&cpu_add_remove_lock);
}
#endif
diff --git a/kernel/exit.c b/kernel/exit.c
index f132349c0325..b55ed4cc9104 100644
--- a/kernel/exit.c
+++ b/kernel/exit.c
@@ -790,7 +790,7 @@ static void exit_notify(struct task_struct *tsk)
pgrp = task_pgrp(tsk);
if ((task_pgrp(t) != pgrp) &&
- (task_session(t) != task_session(tsk)) &&
+ (task_session(t) == task_session(tsk)) &&
will_become_orphaned_pgrp(pgrp, tsk) &&
has_stopped_jobs(pgrp)) {
__kill_pgrp_info(SIGHUP, SEND_SIG_PRIV, pgrp);
diff --git a/kernel/hrtimer.c b/kernel/hrtimer.c
index 6a7938a0d513..1b3033105b40 100644
--- a/kernel/hrtimer.c
+++ b/kernel/hrtimer.c
@@ -59,6 +59,7 @@ ktime_t ktime_get(void)
return timespec_to_ktime(now);
}
+EXPORT_SYMBOL_GPL(ktime_get);
/**
* ktime_get_real - get the real (wall-) time in ktime_t format
@@ -278,6 +279,8 @@ ktime_t ktime_add_ns(const ktime_t kt, u64 nsec)
return ktime_add(kt, tmp);
}
+
+EXPORT_SYMBOL_GPL(ktime_add_ns);
# endif /* !CONFIG_KTIME_SCALAR */
/*
@@ -459,6 +462,18 @@ void clock_was_set(void)
}
/*
+ * During resume we might have to reprogram the high resolution timer
+ * interrupt (on the local CPU):
+ */
+void hres_timers_resume(void)
+{
+ WARN_ON_ONCE(num_online_cpus() > 1);
+
+ /* Retrigger the CPU local events: */
+ retrigger_next_event(NULL);
+}
+
+/*
* Check, whether the timer is on the callback pending list
*/
static inline int hrtimer_cb_pending(const struct hrtimer *timer)
@@ -814,7 +829,12 @@ hrtimer_start(struct hrtimer *timer, ktime_t tim, const enum hrtimer_mode mode)
timer_stats_hrtimer_set_start_info(timer);
- enqueue_hrtimer(timer, new_base, base == new_base);
+ /*
+ * Only allow reprogramming if the new base is on this CPU.
+ * (it might still be on another CPU if the timer was pending)
+ */
+ enqueue_hrtimer(timer, new_base,
+ new_base->cpu_base == &__get_cpu_var(hrtimer_bases));
unlock_hrtimer_base(timer, &flags);
diff --git a/kernel/irq/devres.c b/kernel/irq/devres.c
index 85a430da0fb6..d8ee241115f5 100644
--- a/kernel/irq/devres.c
+++ b/kernel/irq/devres.c
@@ -54,7 +54,7 @@ int devm_request_irq(struct device *dev, unsigned int irq,
rc = request_irq(irq, handler, irqflags, devname, dev_id);
if (rc) {
- kfree(dr);
+ devres_free(dr);
return rc;
}
diff --git a/kernel/kallsyms.c b/kernel/kallsyms.c
index 6f294ff4f9ee..5a0de8409739 100644
--- a/kernel/kallsyms.c
+++ b/kernel/kallsyms.c
@@ -267,27 +267,33 @@ const char *kallsyms_lookup(unsigned long addr,
return NULL;
}
-/* Replace "%s" in format with address, or returns -errno. */
-void __print_symbol(const char *fmt, unsigned long address)
+/* Look up a kernel symbol and return it in a text buffer. */
+int sprint_symbol(char *buffer, unsigned long address)
{
char *modname;
const char *name;
unsigned long offset, size;
char namebuf[KSYM_NAME_LEN+1];
- char buffer[sizeof("%s+%#lx/%#lx [%s]") + KSYM_NAME_LEN +
- 2*(BITS_PER_LONG*3/10) + MODULE_NAME_LEN + 1];
name = kallsyms_lookup(address, &size, &offset, &modname, namebuf);
-
if (!name)
- sprintf(buffer, "0x%lx", address);
+ return sprintf(buffer, "0x%lx", address);
else {
if (modname)
- sprintf(buffer, "%s+%#lx/%#lx [%s]", name, offset,
+ return sprintf(buffer, "%s+%#lx/%#lx [%s]", name, offset,
size, modname);
else
- sprintf(buffer, "%s+%#lx/%#lx", name, offset, size);
+ return sprintf(buffer, "%s+%#lx/%#lx", name, offset, size);
}
+}
+
+/* Look up a kernel symbol and print it to the kernel messages. */
+void __print_symbol(const char *fmt, unsigned long address)
+{
+ char buffer[KSYM_SYMBOL_LEN];
+
+ sprint_symbol(buffer, address);
+
printk(fmt, buffer);
}
@@ -452,3 +458,4 @@ static int __init kallsyms_init(void)
__initcall(kallsyms_init);
EXPORT_SYMBOL(__print_symbol);
+EXPORT_SYMBOL_GPL(sprint_symbol);
diff --git a/kernel/module.c b/kernel/module.c
index fbc51de6444e..9da5af668a20 100644
--- a/kernel/module.c
+++ b/kernel/module.c
@@ -1148,8 +1148,10 @@ int mod_sysfs_setup(struct module *mod,
goto out;
mod->holders_dir = kobject_add_dir(&mod->mkobj.kobj, "holders");
- if (!mod->holders_dir)
+ if (!mod->holders_dir) {
+ err = -ENOMEM;
goto out_unreg;
+ }
err = module_param_sysfs_setup(mod, kparam, num_params);
if (err)
@@ -2384,8 +2386,13 @@ void module_add_driver(struct module *mod, struct device_driver *drv)
/* Lookup built-in module entry in /sys/modules */
mkobj = kset_find_obj(&module_subsys.kset, drv->mod_name);
- if (mkobj)
+ if (mkobj) {
mk = container_of(mkobj, struct module_kobject, kobj);
+ /* remember our module structure */
+ drv->mkobj = mk;
+ /* kset_find_obj took a reference */
+ kobject_put(mkobj);
+ }
}
if (!mk)
@@ -2405,17 +2412,22 @@ EXPORT_SYMBOL(module_add_driver);
void module_remove_driver(struct device_driver *drv)
{
+ struct module_kobject *mk = NULL;
char *driver_name;
if (!drv)
return;
sysfs_remove_link(&drv->kobj, "module");
- if (drv->owner && drv->owner->mkobj.drivers_dir) {
+
+ if (drv->owner)
+ mk = &drv->owner->mkobj;
+ else if (drv->mkobj)
+ mk = drv->mkobj;
+ if (mk && mk->drivers_dir) {
driver_name = make_driver_name(drv);
if (driver_name) {
- sysfs_remove_link(drv->owner->mkobj.drivers_dir,
- driver_name);
+ sysfs_remove_link(mk->drivers_dir, driver_name);
kfree(driver_name);
}
}
diff --git a/kernel/params.c b/kernel/params.c
index e265b13195b1..1fc4ac746cd8 100644
--- a/kernel/params.c
+++ b/kernel/params.c
@@ -356,6 +356,10 @@ int param_set_copystring(const char *val, struct kernel_param *kp)
{
struct kparam_string *kps = kp->arg;
+ if (!val) {
+ printk(KERN_ERR "%s: missing param set value\n", kp->name);
+ return -EINVAL;
+ }
if (strlen(val)+1 > kps->maxlen) {
printk(KERN_ERR "%s: string doesn't fit in %u chars.\n",
kp->name, kps->maxlen-1);
diff --git a/kernel/power/disk.c b/kernel/power/disk.c
index dee0ff40befd..02e4fb69111a 100644
--- a/kernel/power/disk.c
+++ b/kernel/power/disk.c
@@ -39,7 +39,13 @@ static inline int platform_prepare(void)
{
int error = 0;
- if (pm_disk_mode == PM_DISK_PLATFORM) {
+ switch (pm_disk_mode) {
+ case PM_DISK_TEST:
+ case PM_DISK_TESTPROC:
+ case PM_DISK_SHUTDOWN:
+ case PM_DISK_REBOOT:
+ break;
+ default:
if (pm_ops && pm_ops->prepare)
error = pm_ops->prepare(PM_SUSPEND_DISK);
}
@@ -48,41 +54,48 @@ static inline int platform_prepare(void)
/**
* power_down - Shut machine down for hibernate.
- * @mode: Suspend-to-disk mode
*
- * Use the platform driver, if configured so, and return gracefully if it
- * fails.
- * Otherwise, try to power off and reboot. If they fail, halt the machine,
- * there ain't no turning back.
+ * Use the platform driver, if configured so; otherwise try
+ * to power off or reboot.
*/
-static void power_down(suspend_disk_method_t mode)
+static void power_down(void)
{
- disable_nonboot_cpus();
- switch(mode) {
- case PM_DISK_PLATFORM:
- if (pm_ops && pm_ops->enter) {
- kernel_shutdown_prepare(SYSTEM_SUSPEND_DISK);
- pm_ops->enter(PM_SUSPEND_DISK);
- break;
- }
+ switch (pm_disk_mode) {
+ case PM_DISK_TEST:
+ case PM_DISK_TESTPROC:
+ break;
case PM_DISK_SHUTDOWN:
kernel_power_off();
break;
case PM_DISK_REBOOT:
kernel_restart(NULL);
break;
+ default:
+ if (pm_ops && pm_ops->enter) {
+ kernel_shutdown_prepare(SYSTEM_SUSPEND_DISK);
+ pm_ops->enter(PM_SUSPEND_DISK);
+ break;
+ }
}
kernel_halt();
- /* Valid image is on the disk, if we continue we risk serious data corruption
- after resume. */
+ /*
+ * Valid image is on the disk, if we continue we risk serious data
+ * corruption after resume.
+ */
printk(KERN_CRIT "Please power me down manually\n");
while(1);
}
static inline void platform_finish(void)
{
- if (pm_disk_mode == PM_DISK_PLATFORM) {
+ switch (pm_disk_mode) {
+ case PM_DISK_TEST:
+ case PM_DISK_TESTPROC:
+ case PM_DISK_SHUTDOWN:
+ case PM_DISK_REBOOT:
+ break;
+ default:
if (pm_ops && pm_ops->finish)
pm_ops->finish(PM_SUSPEND_DISK);
}
@@ -109,8 +122,6 @@ static int prepare_processes(void)
/**
* pm_suspend_disk - The granpappy of hibernation power management.
*
- * If we're going through the firmware, then get it over with quickly.
- *
* If not, then call swsusp to do its thing, then figure out how
* to power down the system.
*/
@@ -167,7 +178,7 @@ int pm_suspend_disk(void)
pr_debug("PM: writing image.\n");
error = swsusp_write();
if (!error)
- power_down(pm_disk_mode);
+ power_down();
else {
swsusp_free();
goto Thaw;
@@ -279,7 +290,6 @@ late_initcall(software_resume);
static const char * const pm_disk_modes[] = {
- [PM_DISK_FIRMWARE] = "firmware",
[PM_DISK_PLATFORM] = "platform",
[PM_DISK_SHUTDOWN] = "shutdown",
[PM_DISK_REBOOT] = "reboot",
@@ -290,27 +300,25 @@ static const char * const pm_disk_modes[] = {
/**
* disk - Control suspend-to-disk mode
*
- * Suspend-to-disk can be handled in several ways. The greatest
- * distinction is who writes memory to disk - the firmware or the OS.
- * If the firmware does it, we assume that it also handles suspending
- * the system.
- * If the OS does it, then we have three options for putting the system
- * to sleep - using the platform driver (e.g. ACPI or other PM registers),
- * powering off the system or rebooting the system (for testing).
+ * Suspend-to-disk can be handled in several ways. We have a few options
+ * for putting the system to sleep - using the platform driver (e.g. ACPI
+ * or other pm_ops), powering off the system or rebooting the system
+ * (for testing) as well as the two test modes.
*
- * The system will support either 'firmware' or 'platform', and that is
- * known a priori (and encoded in pm_ops). But, the user may choose
- * 'shutdown' or 'reboot' as alternatives.
+ * The system can support 'platform', and that is known a priori (and
+ * encoded in pm_ops). However, the user may choose 'shutdown' or 'reboot'
+ * as alternatives, as well as the test modes 'test' and 'testproc'.
*
* show() will display what the mode is currently set to.
* store() will accept one of
*
- * 'firmware'
* 'platform'
* 'shutdown'
* 'reboot'
+ * 'test'
+ * 'testproc'
*
- * It will only change to 'firmware' or 'platform' if the system
+ * It will only change to 'platform' if the system
* supports it (as determined from pm_ops->pm_disk_mode).
*/
@@ -332,17 +340,21 @@ static ssize_t disk_store(struct subsystem * s, const char * buf, size_t n)
len = p ? p - buf : n;
mutex_lock(&pm_mutex);
- for (i = PM_DISK_FIRMWARE; i < PM_DISK_MAX; i++) {
+ for (i = PM_DISK_PLATFORM; i < PM_DISK_MAX; i++) {
if (!strncmp(buf, pm_disk_modes[i], len)) {
mode = i;
break;
}
}
if (mode) {
- if (mode == PM_DISK_SHUTDOWN || mode == PM_DISK_REBOOT ||
- mode == PM_DISK_TEST || mode == PM_DISK_TESTPROC) {
+ switch (mode) {
+ case PM_DISK_SHUTDOWN:
+ case PM_DISK_REBOOT:
+ case PM_DISK_TEST:
+ case PM_DISK_TESTPROC:
pm_disk_mode = mode;
- } else {
+ break;
+ default:
if (pm_ops && pm_ops->enter &&
(mode == pm_ops->pm_disk_mode))
pm_disk_mode = mode;
diff --git a/kernel/power/main.c b/kernel/power/main.c
index a064dfd8877a..72419a3b1beb 100644
--- a/kernel/power/main.c
+++ b/kernel/power/main.c
@@ -30,7 +30,7 @@
DEFINE_MUTEX(pm_mutex);
struct pm_ops *pm_ops;
-suspend_disk_method_t pm_disk_mode = PM_DISK_PLATFORM;
+suspend_disk_method_t pm_disk_mode = PM_DISK_SHUTDOWN;
/**
* pm_set_ops - Set the global power method table.
@@ -41,9 +41,26 @@ void pm_set_ops(struct pm_ops * ops)
{
mutex_lock(&pm_mutex);
pm_ops = ops;
+ if (ops && ops->pm_disk_mode != PM_DISK_INVALID) {
+ pm_disk_mode = ops->pm_disk_mode;
+ } else
+ pm_disk_mode = PM_DISK_SHUTDOWN;
mutex_unlock(&pm_mutex);
}
+/**
+ * pm_valid_only_mem - generic memory-only valid callback
+ *
+ * pm_ops drivers that implement mem suspend only and only need
+ * to check for that in their .valid callback can use this instead
+ * of rolling their own .valid callback.
+ */
+int pm_valid_only_mem(suspend_state_t state)
+{
+ return state == PM_SUSPEND_MEM;
+}
+
+
static inline void pm_finish(suspend_state_t state)
{
if (pm_ops->finish)
@@ -111,13 +128,24 @@ static int suspend_prepare(suspend_state_t state)
return error;
}
+/* default implementation */
+void __attribute__ ((weak)) arch_suspend_disable_irqs(void)
+{
+ local_irq_disable();
+}
+
+/* default implementation */
+void __attribute__ ((weak)) arch_suspend_enable_irqs(void)
+{
+ local_irq_enable();
+}
int suspend_enter(suspend_state_t state)
{
int error = 0;
- unsigned long flags;
- local_irq_save(flags);
+ arch_suspend_disable_irqs();
+ BUG_ON(!irqs_disabled());
if ((error = device_power_down(PMSG_SUSPEND))) {
printk(KERN_ERR "Some devices failed to power down\n");
@@ -126,7 +154,8 @@ int suspend_enter(suspend_state_t state)
error = pm_ops->enter(state);
device_power_up();
Done:
- local_irq_restore(flags);
+ arch_suspend_enable_irqs();
+ BUG_ON(irqs_disabled());
return error;
}
@@ -169,8 +198,8 @@ static inline int valid_state(suspend_state_t state)
/* all other states need lowlevel support and need to be
* valid to the lowlevel implementation, no valid callback
- * implies that all are valid. */
- if (!pm_ops || (pm_ops->valid && !pm_ops->valid(state)))
+ * implies that none are valid. */
+ if (!pm_ops || !pm_ops->valid || !pm_ops->valid(state))
return 0;
return 1;
}
diff --git a/kernel/power/swsusp.c b/kernel/power/swsusp.c
index 7fb834397a0d..175370824f37 100644
--- a/kernel/power/swsusp.c
+++ b/kernel/power/swsusp.c
@@ -229,13 +229,13 @@ int swsusp_shrink_memory(void)
size += highmem_size;
for_each_zone (zone)
if (populated_zone(zone)) {
+ tmp += snapshot_additional_pages(zone);
if (is_highmem(zone)) {
highmem_size -=
zone_page_state(zone, NR_FREE_PAGES);
} else {
tmp -= zone_page_state(zone, NR_FREE_PAGES);
tmp += zone->lowmem_reserve[ZONE_NORMAL];
- tmp += snapshot_additional_pages(zone);
}
}
diff --git a/kernel/power/user.c b/kernel/power/user.c
index bf211fee1222..7cf6713b2325 100644
--- a/kernel/power/user.c
+++ b/kernel/power/user.c
@@ -401,10 +401,9 @@ static int snapshot_ioctl(struct inode *inode, struct file *filp,
case PMOPS_ENTER:
if (data->platform_suspend) {
- disable_nonboot_cpus();
kernel_shutdown_prepare(SYSTEM_SUSPEND_DISK);
error = pm_ops->enter(PM_SUSPEND_DISK);
- enable_nonboot_cpus();
+ error = 0;
}
break;
diff --git a/kernel/resource.c b/kernel/resource.c
index bdb55a33f969..9bd14fd3e6de 100644
--- a/kernel/resource.c
+++ b/kernel/resource.c
@@ -213,27 +213,6 @@ int request_resource(struct resource *root, struct resource *new)
EXPORT_SYMBOL(request_resource);
/**
- * ____request_resource - reserve a resource, with resource conflict returned
- * @root: root resource descriptor
- * @new: resource descriptor desired by caller
- *
- * Returns:
- * On success, NULL is returned.
- * On error, a pointer to the conflicting resource is returned.
- */
-struct resource *____request_resource(struct resource *root, struct resource *new)
-{
- struct resource *conflict;
-
- write_lock(&resource_lock);
- conflict = __request_resource(root, new);
- write_unlock(&resource_lock);
- return conflict;
-}
-
-EXPORT_SYMBOL(____request_resource);
-
-/**
* release_resource - release a previously reserved resource
* @old: resource pointer
*/
diff --git a/kernel/sched.c b/kernel/sched.c
index a4ca632c477c..960d7c5fca39 100644
--- a/kernel/sched.c
+++ b/kernel/sched.c
@@ -4687,32 +4687,10 @@ out_unlock:
return retval;
}
-static inline struct task_struct *eldest_child(struct task_struct *p)
-{
- if (list_empty(&p->children))
- return NULL;
- return list_entry(p->children.next,struct task_struct,sibling);
-}
-
-static inline struct task_struct *older_sibling(struct task_struct *p)
-{
- if (p->sibling.prev==&p->parent->children)
- return NULL;
- return list_entry(p->sibling.prev,struct task_struct,sibling);
-}
-
-static inline struct task_struct *younger_sibling(struct task_struct *p)
-{
- if (p->sibling.next==&p->parent->children)
- return NULL;
- return list_entry(p->sibling.next,struct task_struct,sibling);
-}
-
static const char stat_nam[] = "RSDTtZX";
static void show_task(struct task_struct *p)
{
- struct task_struct *relative;
unsigned long free = 0;
unsigned state;
@@ -4738,19 +4716,7 @@ static void show_task(struct task_struct *p)
free = (unsigned long)n - (unsigned long)end_of_stack(p);
}
#endif
- printk("%5lu %5d %6d ", free, p->pid, p->parent->pid);
- if ((relative = eldest_child(p)))
- printk("%5d ", relative->pid);
- else
- printk(" ");
- if ((relative = younger_sibling(p)))
- printk("%7d", relative->pid);
- else
- printk(" ");
- if ((relative = older_sibling(p)))
- printk(" %5d", relative->pid);
- else
- printk(" ");
+ printk("%5lu %5d %6d", free, p->pid, p->parent->pid);
if (!p->mm)
printk(" (L-TLB)\n");
else
@@ -4780,7 +4746,7 @@ void show_state_filter(unsigned long state_filter)
* console might take alot of time:
*/
touch_nmi_watchdog();
- if (p->state & state_filter)
+ if (!state_filter || (p->state & state_filter))
show_task(p);
} while_each_thread(g, p);
diff --git a/kernel/sysctl.c b/kernel/sysctl.c
index 1b255df4fcd0..c904748f2290 100644
--- a/kernel/sysctl.c
+++ b/kernel/sysctl.c
@@ -1676,7 +1676,7 @@ static int proc_dointvec_taint(ctl_table *table, int write, struct file *filp,
{
int op;
- if (!capable(CAP_SYS_ADMIN))
+ if (write && !capable(CAP_SYS_ADMIN))
return -EPERM;
op = OP_OR;
diff --git a/kernel/taskstats.c b/kernel/taskstats.c
index 4c3476fa058d..ad7d2392cb0e 100644
--- a/kernel/taskstats.c
+++ b/kernel/taskstats.c
@@ -102,7 +102,7 @@ static int prepare_reply(struct genl_info *info, u8 cmd, struct sk_buff **skbp,
*/
static int send_reply(struct sk_buff *skb, pid_t pid)
{
- struct genlmsghdr *genlhdr = nlmsg_data((struct nlmsghdr *)skb->data);
+ struct genlmsghdr *genlhdr = nlmsg_data(nlmsg_hdr(skb));
void *reply = genlmsg_data(genlhdr);
int rc;
@@ -121,7 +121,7 @@ static int send_reply(struct sk_buff *skb, pid_t pid)
static void send_cpu_listeners(struct sk_buff *skb,
struct listener_list *listeners)
{
- struct genlmsghdr *genlhdr = nlmsg_data((struct nlmsghdr *)skb->data);
+ struct genlmsghdr *genlhdr = nlmsg_data(nlmsg_hdr(skb));
struct listener *s, *tmp;
struct sk_buff *skb_next, *skb_cur = skb;
void *reply = genlmsg_data(genlhdr);
diff --git a/kernel/time.c b/kernel/time.c
index c6c80ea5d0ea..ba18ec4899bd 100644
--- a/kernel/time.c
+++ b/kernel/time.c
@@ -452,6 +452,7 @@ struct timespec ns_to_timespec(const s64 nsec)
return ts;
}
+EXPORT_SYMBOL(ns_to_timespec);
/**
* ns_to_timeval - Convert nanoseconds to timeval
@@ -469,6 +470,7 @@ struct timeval ns_to_timeval(const s64 nsec)
return tv;
}
+EXPORT_SYMBOL(ns_to_timeval);
/*
* Convert jiffies to milliseconds and back.
@@ -635,6 +637,7 @@ timeval_to_jiffies(const struct timeval *value)
(((u64)usec * USEC_CONVERSION + USEC_ROUND) >>
(USEC_JIFFIE_SC - SEC_JIFFIE_SC))) >> SEC_JIFFIE_SC;
}
+EXPORT_SYMBOL(timeval_to_jiffies);
void jiffies_to_timeval(const unsigned long jiffies, struct timeval *value)
{
@@ -649,6 +652,7 @@ void jiffies_to_timeval(const unsigned long jiffies, struct timeval *value)
tv_usec /= NSEC_PER_USEC;
value->tv_usec = tv_usec;
}
+EXPORT_SYMBOL(jiffies_to_timeval);
/*
* Convert jiffies/jiffies_64 to clock_t and back.
diff --git a/kernel/time/clockevents.c b/kernel/time/clockevents.c
index 67932ea78c17..76212b2a99de 100644
--- a/kernel/time/clockevents.c
+++ b/kernel/time/clockevents.c
@@ -274,72 +274,3 @@ void clockevents_notify(unsigned long reason, void *arg)
}
EXPORT_SYMBOL_GPL(clockevents_notify);
-#ifdef CONFIG_SYSFS
-
-/**
- * clockevents_show_registered - sysfs interface for listing clockevents
- * @dev: unused
- * @buf: char buffer to be filled with clock events list
- *
- * Provides sysfs interface for listing registered clock event devices
- */
-static ssize_t clockevents_show_registered(struct sys_device *dev, char *buf)
-{
- struct list_head *tmp;
- char *p = buf;
- int cpu;
-
- spin_lock(&clockevents_lock);
-
- list_for_each(tmp, &clockevent_devices) {
- struct clock_event_device *ce;
-
- ce = list_entry(tmp, struct clock_event_device, list);
- p += sprintf(p, "%-20s F:%04x M:%d", ce->name,
- ce->features, ce->mode);
- p += sprintf(p, " C:");
- if (!cpus_equal(ce->cpumask, cpu_possible_map)) {
- for_each_cpu_mask(cpu, ce->cpumask)
- p += sprintf(p, " %d", cpu);
- } else {
- /*
- * FIXME: Add the cpu which is handling this sucker
- */
- }
- p += sprintf(p, "\n");
- }
-
- spin_unlock(&clockevents_lock);
-
- return p - buf;
-}
-
-/*
- * Sysfs setup bits:
- */
-static SYSDEV_ATTR(registered, 0600,
- clockevents_show_registered, NULL);
-
-static struct sysdev_class clockevents_sysclass = {
- set_kset_name("clockevents"),
-};
-
-static struct sys_device clockevents_sys_device = {
- .id = 0,
- .cls = &clockevents_sysclass,
-};
-
-static int __init clockevents_sysfs_init(void)
-{
- int error = sysdev_class_register(&clockevents_sysclass);
-
- if (!error)
- error = sysdev_register(&clockevents_sys_device);
- if (!error)
- error = sysdev_create_file(
- &clockevents_sys_device,
- &attr_registered);
- return error;
-}
-device_initcall(clockevents_sysfs_init);
-#endif
diff --git a/kernel/time/jiffies.c b/kernel/time/jiffies.c
index 3be8da8fed7e..4c256fdb8875 100644
--- a/kernel/time/jiffies.c
+++ b/kernel/time/jiffies.c
@@ -69,4 +69,4 @@ static int __init init_jiffies_clocksource(void)
return clocksource_register(&clocksource_jiffies);
}
-module_init(init_jiffies_clocksource);
+core_initcall(init_jiffies_clocksource);
diff --git a/kernel/time/ntp.c b/kernel/time/ntp.c
index eb12509e00bd..cb25649c6f50 100644
--- a/kernel/time/ntp.c
+++ b/kernel/time/ntp.c
@@ -32,7 +32,7 @@ static u64 tick_length, tick_length_base;
/* TIME_ERROR prevents overwriting the CMOS clock */
static int time_state = TIME_OK; /* clock synchronization status */
int time_status = STA_UNSYNC; /* clock status bits */
-static long time_offset; /* time adjustment (ns) */
+static s64 time_offset; /* time adjustment (ns) */
static long time_constant = 2; /* pll time constant */
long time_maxerror = NTP_PHASE_LIMIT; /* maximum error (us) */
long time_esterror = NTP_PHASE_LIMIT; /* estimated error (us) */
@@ -196,7 +196,7 @@ void __attribute__ ((weak)) notify_arch_cmos_timer(void)
*/
int do_adjtimex(struct timex *txc)
{
- long ltemp, mtemp, save_adjust;
+ long mtemp, save_adjust, rem;
s64 freq_adj, temp64;
int result;
@@ -277,14 +277,14 @@ int do_adjtimex(struct timex *txc)
time_adjust = txc->offset;
}
else if (time_status & STA_PLL) {
- ltemp = txc->offset * NSEC_PER_USEC;
+ time_offset = txc->offset * NSEC_PER_USEC;
/*
* Scale the phase adjustment and
* clamp to the operating range.
*/
- time_offset = min(ltemp, MAXPHASE * NSEC_PER_USEC);
- time_offset = max(time_offset, -MAXPHASE * NSEC_PER_USEC);
+ time_offset = min(time_offset, (s64)MAXPHASE * NSEC_PER_USEC);
+ time_offset = max(time_offset, (s64)-MAXPHASE * NSEC_PER_USEC);
/*
* Select whether the frequency is to be controlled
@@ -297,11 +297,11 @@ int do_adjtimex(struct timex *txc)
mtemp = xtime.tv_sec - time_reftime;
time_reftime = xtime.tv_sec;
- freq_adj = (s64)time_offset * mtemp;
+ freq_adj = time_offset * mtemp;
freq_adj = shift_right(freq_adj, time_constant * 2 +
(SHIFT_PLL + 2) * 2 - SHIFT_NSEC);
if (mtemp >= MINSEC && (time_status & STA_FLL || mtemp > MAXSEC)) {
- temp64 = (s64)time_offset << (SHIFT_NSEC - SHIFT_FLL);
+ temp64 = time_offset << (SHIFT_NSEC - SHIFT_FLL);
if (time_offset < 0) {
temp64 = -temp64;
do_div(temp64, mtemp);
@@ -314,8 +314,10 @@ int do_adjtimex(struct timex *txc)
freq_adj += time_freq;
freq_adj = min(freq_adj, (s64)MAXFREQ_NSEC);
time_freq = max(freq_adj, (s64)-MAXFREQ_NSEC);
- time_offset = (time_offset / NTP_INTERVAL_FREQ)
- << SHIFT_UPDATE;
+ time_offset = div_long_long_rem_signed(time_offset,
+ NTP_INTERVAL_FREQ,
+ &rem);
+ time_offset <<= SHIFT_UPDATE;
} /* STA_PLL */
} /* txc->modes & ADJ_OFFSET */
if (txc->modes & ADJ_TICK)
@@ -328,12 +330,12 @@ leave: if ((time_status & (STA_UNSYNC|STA_CLOCKERR)) != 0)
result = TIME_ERROR;
if ((txc->modes & ADJ_OFFSET_SINGLESHOT) == ADJ_OFFSET_SINGLESHOT)
- txc->offset = save_adjust;
+ txc->offset = save_adjust;
else
- txc->offset = shift_right(time_offset, SHIFT_UPDATE)
- * NTP_INTERVAL_FREQ / 1000;
- txc->freq = (time_freq / NSEC_PER_USEC)
- << (SHIFT_USEC - SHIFT_NSEC);
+ txc->offset = ((long)shift_right(time_offset, SHIFT_UPDATE)) *
+ NTP_INTERVAL_FREQ / 1000;
+ txc->freq = (time_freq / NSEC_PER_USEC) <<
+ (SHIFT_USEC - SHIFT_NSEC);
txc->maxerror = time_maxerror;
txc->esterror = time_esterror;
txc->status = time_status;
diff --git a/kernel/timer.c b/kernel/timer.c
index 440048acaea1..b22bd39740dd 100644
--- a/kernel/timer.c
+++ b/kernel/timer.c
@@ -505,6 +505,8 @@ out:
return ret;
}
+EXPORT_SYMBOL(try_to_del_timer_sync);
+
/**
* del_timer_sync - deactivate a timer and wait for the handler to finish.
* @timer: the timer to be deactivated
@@ -1016,7 +1018,7 @@ static int timekeeping_resume(struct sys_device *dev)
clockevents_notify(CLOCK_EVT_NOTIFY_RESUME, NULL);
/* Resume hrtimers */
- clock_was_set();
+ hres_timers_resume();
return 0;
}
generated by cgit v1.2.3 (git 2.39.1) at 2024-12-26 17:35:15 +0100