* 'pm-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm: (76 commits)
PM / Hibernate: Implement compat_ioctl for /dev/snapshot
PM / Freezer: fix return value of freezable_schedule_timeout_killable()
PM / shmobile: Allow the A4R domain to be turned off at run time
PM / input / touchscreen: Make st1232 use device PM QoS constraints
PM / QoS: Introduce dev_pm_qos_add_ancestor_request()
PM / shmobile: Remove the stay_on flag from SH7372's PM domains
PM / shmobile: Don't include SH7372's INTCS in syscore suspend/resume
PM / shmobile: Add support for the sh7372 A4S power domain / sleep mode
PM: Drop generic_subsys_pm_ops
PM / Sleep: Remove forward-only callbacks from AMBA bus type
PM / Sleep: Remove forward-only callbacks from platform bus type
PM: Run the driver callback directly if the subsystem one is not there
PM / Sleep: Make pm_op() and pm_noirq_op() return callback pointers
PM/Devfreq: Add Exynos4-bus device DVFS driver for Exynos4210/4212/4412.
PM / Sleep: Merge internal functions in generic_ops.c
PM / Sleep: Simplify generic system suspend callbacks
PM / Hibernate: Remove deprecated hibernation snapshot ioctls
PM / Sleep: Fix freezer failures due to racy usermodehelper_is_disabled()
ARM: S3C64XX: Implement basic power domain support
PM / shmobile: Use common always on power domain governor
...
Fix up trivial conflict in fs/xfs/xfs_buf.c due to removal of unused
XBT_FORCE_SLEEP bit
---------------------------
- What: Deprecated snapshot ioctls
- When: 2.6.36
-
- Why: The ioctls in kernel/power/user.c were marked as deprecated long time
- ago. Now they notify users about that so that they need to replace
- their userspace. After some more time, remove them completely.
-
-
- ---------------------------
-
What: The ieee80211_regdom module parameter
When: March 2010 / desktop catchup
What: Code that is now under CONFIG_WIRELESS_EXT_SYSFS
(in net/core/net-sysfs.c)
-When: After the only user (hal) has seen a release with the patches
- for enough time, probably some time in 2010.
+When: 3.5
Why: Over 1K .text/.data size reduction, data is available in other
ways (ioctls)
#include <linux/mfd/wm831x/irq.h>
#include <linux/mfd/wm831x/gpio.h>
+#include <asm/hardware/vic.h>
#include <asm/mach/arch.h>
#include <asm/mach-types.h>
#include <mach/regs-gpio-memport.h>
-#include <plat/s3c6410.h>
#include <plat/regs-serial.h>
#include <plat/regs-fb-v4.h>
#include <plat/fb.h>
#include <plat/iic.h>
#include <plat/pm.h>
+#include "common.h"
+
/* serial port setup */
#define UCON (S3C2410_UCON_DEFAULT | S3C2410_UCON_UCLK)
regulator_has_full_constraints();
- s3c_pm_init();
+ s3c64xx_pm_init();
}
MACHINE_START(WLF_CRAGG_6410, "Wolfson Cragganmore 6410")
.atag_offset = 0x100,
.init_irq = s3c6410_init_irq,
+ .handle_irq = vic_handle_irq,
.map_io = crag6410_map_io,
.init_machine = crag6410_machine_init,
.timer = &s3c24xx_timer,
+ .restart = s3c64xx_restart,
MACHINE_END
struct clk;
extern int clk_init(void);
extern void shmobile_handle_irq_intc(struct pt_regs *);
-extern void shmobile_handle_irq_gic(struct pt_regs *);
extern struct platform_suspend_ops shmobile_suspend_ops;
struct cpuidle_driver;
extern void (*shmobile_cpuidle_modes[])(void);
extern void sh7372_clock_init(void);
extern void sh7372_pinmux_init(void);
extern void sh7372_pm_init(void);
- extern void sh7372_resume_core_standby_a3sm(void);
- extern int sh7372_do_idle_a3sm(unsigned long unused);
+ extern void sh7372_resume_core_standby_sysc(void);
+ extern int sh7372_do_idle_sysc(unsigned long sleep_mode);
extern struct clk sh7372_extal1_clk;
extern struct clk sh7372_extal2_clk;
#include <linux/irq.h>
-struct sys_device;
+struct device;
#ifdef CONFIG_PM
extern __init int s3c_pm_init(void);
+ extern __init int s3c64xx_pm_init(void);
#else
{
return 0;
}
+
+ static inline int s3c64xx_pm_init(void)
+ {
+ return 0;
+ }
#endif
/* configuration for the IRQ mask over sleep */
#include <asm/types.h>
#include <asm/page.h>
+#include <asm/segment.h>
/*
* On machines with 4k pages we default to an 8k thread size, though we
struct task_struct *task; /* main task structure */
unsigned long flags;
struct exec_domain *exec_domain; /* execution domain */
+ mm_segment_t addr_limit; /* thread address space */
int preempt_count; /* 0 => preemptable, <0 => BUG */
__u32 cpu; /* should always be 0 on m68k */
unsigned long tp_value; /* thread pointer */
{ \
.task = &tsk, \
.exec_domain = &default_exec_domain, \
+ .addr_limit = KERNEL_DS, \
.preempt_count = INIT_PREEMPT_COUNT, \
.restart_block = { \
.fn = do_no_restart_syscall, \
#define init_stack (init_thread_union.stack)
-#ifdef CONFIG_MMU
-
-#ifndef __ASSEMBLY__
-#include <asm/current.h>
-#endif
-
-#ifdef ASM_OFFSETS_C
-#define task_thread_info(tsk) ((struct thread_info *) NULL)
-#else
-#include <asm/asm-offsets.h>
-#define task_thread_info(tsk) ((struct thread_info *)((char *)tsk+TASK_TINFO))
-#endif
-
-#define init_thread_info (init_task.thread.info)
-#define task_stack_page(tsk) ((tsk)->stack)
-#define current_thread_info() task_thread_info(current)
-
-#define __HAVE_THREAD_FUNCTIONS
-
-#define setup_thread_stack(p, org) ({ \
- *(struct task_struct **)(p)->stack = (p); \
- task_thread_info(p)->task = (p); \
-})
-
-#define end_of_stack(p) ((unsigned long *)(p)->stack + 1)
-
-#else /* !CONFIG_MMU */
-
#ifndef __ASSEMBLY__
/* how to get the thread information struct from C */
static inline struct thread_info *current_thread_info(void)
#define init_thread_info (init_thread_union.thread_info)
-#endif /* CONFIG_MMU */
-
/* entry.S relies on these definitions!
* bits 0-7 are tested at every exception exit
* bits 8-15 are also tested at syscall exit
#define TIF_DELAYED_TRACE 14 /* single step a syscall */
#define TIF_SYSCALL_TRACE 15 /* syscall trace active */
#define TIF_MEMDIE 16 /* is terminating due to OOM killer */
- #define TIF_FREEZE 17 /* thread is freezing for suspend */
#define TIF_RESTORE_SIGMASK 18 /* restore signal mask in do_signal */
#endif /* _ASM_M68K_THREAD_INFO_H */
*/
__u8 supervisor_stack[0];
#endif
- int uaccess_err;
+ int sig_on_uaccess_error:1;
+ int uaccess_err:1; /* uaccess failed */
};
#define INIT_THREAD_INFO(tsk) \
#define TIF_MEMDIE 20 /* is terminating due to OOM killer */
#define TIF_DEBUG 21 /* uses debug registers */
#define TIF_IO_BITMAP 22 /* uses I/O bitmap */
- #define TIF_FREEZE 23 /* is freezing for suspend */
#define TIF_FORCED_TF 24 /* true if TF in eflags artificially */
#define TIF_BLOCKSTEP 25 /* set when we want DEBUGCTLMSR_BTF */
#define TIF_LAZY_MMU_UPDATES 27 /* task is updating the mmu lazily */
#define _TIF_FORK (1 << TIF_FORK)
#define _TIF_DEBUG (1 << TIF_DEBUG)
#define _TIF_IO_BITMAP (1 << TIF_IO_BITMAP)
- #define _TIF_FREEZE (1 << TIF_FREEZE)
#define _TIF_FORCED_TF (1 << TIF_FORCED_TF)
#define _TIF_BLOCKSTEP (1 << TIF_BLOCKSTEP)
#define _TIF_LAZY_MMU_UPDATES (1 << TIF_LAZY_MMU_UPDATES)
movq PER_CPU_VAR(kernel_stack),reg ; \
subq $(THREAD_SIZE-KERNEL_STACK_OFFSET),reg
+/*
+ * Same if PER_CPU_VAR(kernel_stack) is, perhaps with some offset, already in
+ * a certain register (to be used in assembler memory operands).
+ */
+#define THREAD_INFO(reg, off) KERNEL_STACK_OFFSET+(off)-THREAD_SIZE(reg)
+
#endif
#endif /* !X86_32 */
int retval = 0;
retval = add_uevent_var(env, "AMBA_ID=%08x", pcdev->periphid);
+ if (retval)
+ return retval;
+
+ retval = add_uevent_var(env, "MODALIAS=amba:d%08X", pcdev->periphid);
return retval;
}
#else
return ret;
}
- static int amba_pm_prepare(struct device *dev)
- {
- struct device_driver *drv = dev->driver;
- int ret = 0;
-
- if (drv && drv->pm && drv->pm->prepare)
- ret = drv->pm->prepare(dev);
-
- return ret;
- }
-
- static void amba_pm_complete(struct device *dev)
- {
- struct device_driver *drv = dev->driver;
-
- if (drv && drv->pm && drv->pm->complete)
- drv->pm->complete(dev);
- }
-
- #else /* !CONFIG_PM_SLEEP */
-
- #define amba_pm_prepare NULL
- #define amba_pm_complete NULL
-
- #endif /* !CONFIG_PM_SLEEP */
+ #endif /* CONFIG_PM_SLEEP */
#ifdef CONFIG_SUSPEND
return ret;
}
- static int amba_pm_suspend_noirq(struct device *dev)
- {
- struct device_driver *drv = dev->driver;
- int ret = 0;
-
- if (!drv)
- return 0;
-
- if (drv->pm) {
- if (drv->pm->suspend_noirq)
- ret = drv->pm->suspend_noirq(dev);
- }
-
- return ret;
- }
-
static int amba_pm_resume(struct device *dev)
{
struct device_driver *drv = dev->driver;
return ret;
}
- static int amba_pm_resume_noirq(struct device *dev)
- {
- struct device_driver *drv = dev->driver;
- int ret = 0;
-
- if (!drv)
- return 0;
-
- if (drv->pm) {
- if (drv->pm->resume_noirq)
- ret = drv->pm->resume_noirq(dev);
- }
-
- return ret;
- }
-
#else /* !CONFIG_SUSPEND */
#define amba_pm_suspend NULL
#define amba_pm_resume NULL
- #define amba_pm_suspend_noirq NULL
- #define amba_pm_resume_noirq NULL
#endif /* !CONFIG_SUSPEND */
return ret;
}
- static int amba_pm_freeze_noirq(struct device *dev)
- {
- struct device_driver *drv = dev->driver;
- int ret = 0;
-
- if (!drv)
- return 0;
-
- if (drv->pm) {
- if (drv->pm->freeze_noirq)
- ret = drv->pm->freeze_noirq(dev);
- }
-
- return ret;
- }
-
static int amba_pm_thaw(struct device *dev)
{
struct device_driver *drv = dev->driver;
return ret;
}
- static int amba_pm_thaw_noirq(struct device *dev)
- {
- struct device_driver *drv = dev->driver;
- int ret = 0;
-
- if (!drv)
- return 0;
-
- if (drv->pm) {
- if (drv->pm->thaw_noirq)
- ret = drv->pm->thaw_noirq(dev);
- }
-
- return ret;
- }
-
static int amba_pm_poweroff(struct device *dev)
{
struct device_driver *drv = dev->driver;
return ret;
}
- static int amba_pm_poweroff_noirq(struct device *dev)
- {
- struct device_driver *drv = dev->driver;
- int ret = 0;
-
- if (!drv)
- return 0;
-
- if (drv->pm) {
- if (drv->pm->poweroff_noirq)
- ret = drv->pm->poweroff_noirq(dev);
- }
-
- return ret;
- }
-
static int amba_pm_restore(struct device *dev)
{
struct device_driver *drv = dev->driver;
return ret;
}
- static int amba_pm_restore_noirq(struct device *dev)
- {
- struct device_driver *drv = dev->driver;
- int ret = 0;
-
- if (!drv)
- return 0;
-
- if (drv->pm) {
- if (drv->pm->restore_noirq)
- ret = drv->pm->restore_noirq(dev);
- }
-
- return ret;
- }
-
#else /* !CONFIG_HIBERNATE_CALLBACKS */
#define amba_pm_freeze NULL
#define amba_pm_thaw NULL
#define amba_pm_poweroff NULL
#define amba_pm_restore NULL
- #define amba_pm_freeze_noirq NULL
- #define amba_pm_thaw_noirq NULL
- #define amba_pm_poweroff_noirq NULL
- #define amba_pm_restore_noirq NULL
#endif /* !CONFIG_HIBERNATE_CALLBACKS */
#ifdef CONFIG_PM
static const struct dev_pm_ops amba_pm = {
- .prepare = amba_pm_prepare,
- .complete = amba_pm_complete,
.suspend = amba_pm_suspend,
.resume = amba_pm_resume,
.freeze = amba_pm_freeze,
.thaw = amba_pm_thaw,
.poweroff = amba_pm_poweroff,
.restore = amba_pm_restore,
- .suspend_noirq = amba_pm_suspend_noirq,
- .resume_noirq = amba_pm_resume_noirq,
- .freeze_noirq = amba_pm_freeze_noirq,
- .thaw_noirq = amba_pm_thaw_noirq,
- .poweroff_noirq = amba_pm_poweroff_noirq,
- .restore_noirq = amba_pm_restore_noirq,
SET_RUNTIME_PM_OPS(
amba_pm_runtime_suspend,
amba_pm_runtime_resume,
int loading = simple_strtol(buf, NULL, 10);
int i;
+ mutex_lock(&fw_lock);
+
+ if (!fw_priv->fw)
+ goto out;
+
switch (loading) {
case 1:
- mutex_lock(&fw_lock);
- if (!fw_priv->fw) {
- mutex_unlock(&fw_lock);
- break;
- }
firmware_free_data(fw_priv->fw);
memset(fw_priv->fw, 0, sizeof(struct firmware));
/* If the pages are not owned by 'struct firmware' */
fw_priv->page_array_size = 0;
fw_priv->nr_pages = 0;
set_bit(FW_STATUS_LOADING, &fw_priv->status);
- mutex_unlock(&fw_lock);
break;
case 0:
if (test_bit(FW_STATUS_LOADING, &fw_priv->status)) {
fw_load_abort(fw_priv);
break;
}
-
+out:
+ mutex_unlock(&fw_lock);
return count;
}
return 0;
}
+ read_lock_usermodehelper();
+
if (WARN_ON(usermodehelper_is_disabled())) {
dev_err(device, "firmware: %s will not be loaded\n", name);
retval = -EBUSY;
fw_destroy_instance(fw_priv);
out:
+ read_unlock_usermodehelper();
+
if (retval) {
release_firmware(firmware);
*firmware_p = NULL;
* Returns &struct platform_device pointer on success, or ERR_PTR() on error.
*/
struct platform_device *platform_device_register_full(
- struct platform_device_info *pdevinfo)
+ const struct platform_device_info *pdevinfo)
{
int ret = -ENOMEM;
struct platform_device *pdev;
return ret;
}
- int platform_pm_prepare(struct device *dev)
- {
- struct device_driver *drv = dev->driver;
- int ret = 0;
-
- if (drv && drv->pm && drv->pm->prepare)
- ret = drv->pm->prepare(dev);
-
- return ret;
- }
-
- void platform_pm_complete(struct device *dev)
- {
- struct device_driver *drv = dev->driver;
-
- if (drv && drv->pm && drv->pm->complete)
- drv->pm->complete(dev);
- }
-
#endif /* CONFIG_PM_SLEEP */
#ifdef CONFIG_SUSPEND
return ret;
}
- int platform_pm_suspend_noirq(struct device *dev)
- {
- struct device_driver *drv = dev->driver;
- int ret = 0;
-
- if (!drv)
- return 0;
-
- if (drv->pm) {
- if (drv->pm->suspend_noirq)
- ret = drv->pm->suspend_noirq(dev);
- }
-
- return ret;
- }
-
int platform_pm_resume(struct device *dev)
{
struct device_driver *drv = dev->driver;
return ret;
}
- int platform_pm_resume_noirq(struct device *dev)
- {
- struct device_driver *drv = dev->driver;
- int ret = 0;
-
- if (!drv)
- return 0;
-
- if (drv->pm) {
- if (drv->pm->resume_noirq)
- ret = drv->pm->resume_noirq(dev);
- }
-
- return ret;
- }
-
#endif /* CONFIG_SUSPEND */
#ifdef CONFIG_HIBERNATE_CALLBACKS
return ret;
}
- int platform_pm_freeze_noirq(struct device *dev)
- {
- struct device_driver *drv = dev->driver;
- int ret = 0;
-
- if (!drv)
- return 0;
-
- if (drv->pm) {
- if (drv->pm->freeze_noirq)
- ret = drv->pm->freeze_noirq(dev);
- }
-
- return ret;
- }
-
int platform_pm_thaw(struct device *dev)
{
struct device_driver *drv = dev->driver;
return ret;
}
- int platform_pm_thaw_noirq(struct device *dev)
- {
- struct device_driver *drv = dev->driver;
- int ret = 0;
-
- if (!drv)
- return 0;
-
- if (drv->pm) {
- if (drv->pm->thaw_noirq)
- ret = drv->pm->thaw_noirq(dev);
- }
-
- return ret;
- }
-
int platform_pm_poweroff(struct device *dev)
{
struct device_driver *drv = dev->driver;
return ret;
}
- int platform_pm_poweroff_noirq(struct device *dev)
- {
- struct device_driver *drv = dev->driver;
- int ret = 0;
-
- if (!drv)
- return 0;
-
- if (drv->pm) {
- if (drv->pm->poweroff_noirq)
- ret = drv->pm->poweroff_noirq(dev);
- }
-
- return ret;
- }
-
int platform_pm_restore(struct device *dev)
{
struct device_driver *drv = dev->driver;
return ret;
}
- int platform_pm_restore_noirq(struct device *dev)
- {
- struct device_driver *drv = dev->driver;
- int ret = 0;
-
- if (!drv)
- return 0;
-
- if (drv->pm) {
- if (drv->pm->restore_noirq)
- ret = drv->pm->restore_noirq(dev);
- }
-
- return ret;
- }
-
#endif /* CONFIG_HIBERNATE_CALLBACKS */
static const struct dev_pm_ops platform_dev_pm_ops = {
write_reg(stir, REG_CTRL1, CTRL1_TXPWD|CTRL1_RXPWD);
- refrigerator();
+ try_to_freeze();
if (change_speed(stir, stir->speed))
break;
#endif
};
-/*
- * Module insertion
- */
-static int __init stir_init(void)
-{
- return usb_register(&irda_driver);
-}
-module_init(stir_init);
-
-/*
- * Module removal
- */
-static void __exit stir_cleanup(void)
-{
- /* Deregister the driver and remove all pending instances */
- usb_deregister(&irda_driver);
-}
-module_exit(stir_cleanup);
+module_usb_driver(irda_driver);
char param[32];
int (*init) (struct ibm_init_struct *);
- mode_t base_procfs_mode;
+ umode_t base_procfs_mode;
struct ibm_struct *data;
};
u32 poll_mask, event_mask;
unsigned int si, so;
unsigned long t;
- unsigned int change_detector, must_reset;
+ unsigned int change_detector;
unsigned int poll_freq;
+ bool was_frozen;
mutex_lock(&hotkey_thread_mutex);
t = 100; /* should never happen... */
}
t = msleep_interruptible(t);
- if (unlikely(kthread_should_stop()))
+ if (unlikely(kthread_freezable_should_stop(&was_frozen)))
break;
- must_reset = try_to_freeze();
- if (t > 0 && !must_reset)
+
+ if (t > 0 && !was_frozen)
continue;
mutex_lock(&hotkey_thread_data_mutex);
- if (must_reset || hotkey_config_change != change_detector) {
+ if (was_frozen || hotkey_config_change != change_detector) {
/* forget old state on thaw or config change */
si = so;
t = 0;
static void hotkey_poll_stop_sync(void)
{
if (tpacpi_hotkey_task) {
- if (frozen(tpacpi_hotkey_task) ||
- freezing(tpacpi_hotkey_task))
- thaw_process(tpacpi_hotkey_task);
-
kthread_stop(tpacpi_hotkey_task);
tpacpi_hotkey_task = NULL;
mutex_lock(&hotkey_thread_mutex);
"%s installed\n", ibm->name);
if (ibm->read) {
- mode_t mode = iibm->base_procfs_mode;
+ umode_t mode = iibm->base_procfs_mode;
if (!mode)
mode = S_IRUGO;
#include <linux/stat.h>
#include <linux/interrupt.h>
#include <linux/sh_intc.h>
-#include <linux/sysdev.h>
+#include <linux/device.h>
#include <linux/syscore_ops.h>
#include <linux/list.h>
#include <linux/spinlock.h>
if (desc->force_enable)
intc_enable_disable_enum(desc, d, desc->force_enable, 1);
+ d->skip_suspend = desc->skip_syscore_suspend;
+
nr_intc_controllers++;
return 0;
list_for_each_entry(d, &intc_list, list) {
int irq;
+ if (d->skip_suspend)
+ continue;
+
/* enable wakeup irqs belonging to this intc controller */
for_each_active_irq(irq) {
struct irq_data *data;
list_for_each_entry(d, &intc_list, list) {
int irq;
+ if (d->skip_suspend)
+ continue;
+
for_each_active_irq(irq) {
struct irq_data *data;
struct irq_chip *chip;
.resume = intc_resume,
};
-struct sysdev_class intc_sysdev_class = {
+struct bus_type intc_subsys = {
.name = "intc",
+ .dev_name = "intc",
};
static ssize_t
-show_intc_name(struct sys_device *dev, struct sysdev_attribute *attr, char *buf)
+show_intc_name(struct device *dev, struct device_attribute *attr, char *buf)
{
struct intc_desc_int *d;
- d = container_of(dev, struct intc_desc_int, sysdev);
+ d = container_of(dev, struct intc_desc_int, dev);
return sprintf(buf, "%s\n", d->chip.name);
}
-static SYSDEV_ATTR(name, S_IRUGO, show_intc_name, NULL);
+static DEVICE_ATTR(name, S_IRUGO, show_intc_name, NULL);
-static int __init register_intc_sysdevs(void)
+static int __init register_intc_devs(void)
{
struct intc_desc_int *d;
int error;
register_syscore_ops(&intc_syscore_ops);
- error = sysdev_class_register(&intc_sysdev_class);
+ error = subsys_system_register(&intc_subsys, NULL);
if (!error) {
list_for_each_entry(d, &intc_list, list) {
- d->sysdev.id = d->index;
- d->sysdev.cls = &intc_sysdev_class;
- error = sysdev_register(&d->sysdev);
+ d->dev.id = d->index;
+ d->dev.bus = &intc_subsys;
+ error = device_register(&d->dev);
if (error == 0)
- error = sysdev_create_file(&d->sysdev,
- &attr_name);
+ error = device_create_file(&d->dev,
+ &dev_attr_name);
if (error)
break;
}
}
if (error)
- pr_err("sysdev registration error\n");
+ pr_err("device registration error\n");
return error;
}
-device_initcall(register_intc_sysdevs);
+device_initcall(register_intc_devs);
#include <linux/kernel.h>
#include <linux/types.h>
#include <linux/radix-tree.h>
-#include <linux/sysdev.h>
+#include <linux/device.h>
#define _INTC_MK(fn, mode, addr_e, addr_d, width, shift) \
((shift) | ((width) << 5) | ((fn) << 9) | ((mode) << 13) | \
struct intc_desc_int {
struct list_head list;
- struct sys_device sysdev;
+ struct device dev;
struct radix_tree_root tree;
raw_spinlock_t lock;
unsigned int index;
struct intc_window *window;
unsigned int nr_windows;
struct irq_chip chip;
+ bool skip_suspend;
};
extern struct list_head intc_list;
extern raw_spinlock_t intc_big_lock;
extern unsigned int nr_intc_controllers;
-extern struct sysdev_class intc_sysdev_class;
+extern struct bus_type intc_subsys;
unsigned int intc_get_dfl_prio_level(void);
unsigned int intc_get_prio_level(unsigned int irq);
static void ext4_i_callback(struct rcu_head *head)
{
struct inode *inode = container_of(head, struct inode, i_rcu);
- INIT_LIST_HEAD(&inode->i_dentry);
kmem_cache_free(ext4_inode_cachep, EXT4_I(inode));
}
* - it's set to a non-default value OR
* - if the per-sb default is different from the global default
*/
-static int ext4_show_options(struct seq_file *seq, struct vfsmount *vfs)
+static int ext4_show_options(struct seq_file *seq, struct dentry *root)
{
int def_errors;
unsigned long def_mount_opts;
- struct super_block *sb = vfs->mnt_sb;
+ struct super_block *sb = root->d_sb;
struct ext4_sb_info *sbi = EXT4_SB(sb);
struct ext4_super_block *es = sbi->s_es;
}
mutex_unlock(&eli->li_list_mtx);
- if (freezing(current))
- refrigerator();
+ try_to_freeze();
cur = jiffies;
if ((time_after_eq(cur, next_wakeup)) ||
return -EINVAL;
/* Quotafile not on the same filesystem? */
- if (path->mnt->mnt_sb != sb)
+ if (path->dentry->d_sb != sb)
return -EXDEV;
/* Journaling quota? */
if (EXT4_SB(sb)->s_qf_names[type]) {
#include <linux/writeback.h>
#include <linux/blkdev.h>
#include <linux/backing-dev.h>
-#include <linux/buffer_head.h>
#include <linux/tracepoint.h>
#include "internal.h"
trace_writeback_thread_start(bdi);
- while (!kthread_should_stop()) {
+ while (!kthread_freezable_should_stop(NULL)) {
/*
* Remove own delayed wake-up timer, since we are already awake
* and we'll take care of the preriodic write-back.
*/
schedule();
}
-
- try_to_freeze();
}
/* Flush any work that raced with us exiting */
if (test_bit(SDF_NOBARRIERS, &sdp->sd_flags))
submit_bh(WRITE_SYNC | REQ_META | REQ_PRIO, bh);
else
- submit_bh(WRITE_FLUSH_FUA | REQ_META | REQ_PRIO, bh);
+ submit_bh(WRITE_FLUSH_FUA | REQ_META, bh);
wait_on_buffer(bh);
if (!buffer_uptodate(bh))
wake_up(&sdp->sd_log_waitq);
t = gfs2_tune_get(sdp, gt_logd_secs) * HZ;
- if (freezing(current))
- refrigerator();
+
+ try_to_freeze();
do {
prepare_to_wait(&sdp->sd_logd_waitq, &wait,
int gfs2_quota_hold(struct gfs2_inode *ip, u32 uid, u32 gid)
{
struct gfs2_sbd *sdp = GFS2_SB(&ip->i_inode);
- struct gfs2_alloc *al = ip->i_alloc;
- struct gfs2_quota_data **qd = al->al_qd;
+ struct gfs2_qadata *qa = ip->i_qadata;
+ struct gfs2_quota_data **qd = qa->qa_qd;
int error;
- if (gfs2_assert_warn(sdp, !al->al_qd_num) ||
+ if (gfs2_assert_warn(sdp, !qa->qa_qd_num) ||
gfs2_assert_warn(sdp, !test_bit(GIF_QD_LOCKED, &ip->i_flags)))
return -EIO;
error = qdsb_get(sdp, QUOTA_USER, ip->i_inode.i_uid, qd);
if (error)
goto out;
- al->al_qd_num++;
+ qa->qa_qd_num++;
qd++;
error = qdsb_get(sdp, QUOTA_GROUP, ip->i_inode.i_gid, qd);
if (error)
goto out;
- al->al_qd_num++;
+ qa->qa_qd_num++;
qd++;
if (uid != NO_QUOTA_CHANGE && uid != ip->i_inode.i_uid) {
error = qdsb_get(sdp, QUOTA_USER, uid, qd);
if (error)
goto out;
- al->al_qd_num++;
+ qa->qa_qd_num++;
qd++;
}
error = qdsb_get(sdp, QUOTA_GROUP, gid, qd);
if (error)
goto out;
- al->al_qd_num++;
+ qa->qa_qd_num++;
qd++;
}
void gfs2_quota_unhold(struct gfs2_inode *ip)
{
struct gfs2_sbd *sdp = GFS2_SB(&ip->i_inode);
- struct gfs2_alloc *al = ip->i_alloc;
+ struct gfs2_qadata *qa = ip->i_qadata;
unsigned int x;
gfs2_assert_warn(sdp, !test_bit(GIF_QD_LOCKED, &ip->i_flags));
- for (x = 0; x < al->al_qd_num; x++) {
- qdsb_put(al->al_qd[x]);
- al->al_qd[x] = NULL;
+ for (x = 0; x < qa->qa_qd_num; x++) {
+ qdsb_put(qa->qa_qd[x]);
+ qa->qa_qd[x] = NULL;
}
- al->al_qd_num = 0;
+ qa->qa_qd_num = 0;
}
static int sort_qd(const void *a, const void *b)
set_buffer_uptodate(bh);
if (!buffer_uptodate(bh)) {
- ll_rw_block(READ | REQ_META | REQ_PRIO, 1, &bh);
+ ll_rw_block(READ | REQ_META, 1, &bh);
wait_on_buffer(bh);
if (!buffer_uptodate(bh))
goto unlock_out;
struct gfs2_quota_data *qd;
loff_t offset;
unsigned int nalloc = 0, blocks;
- struct gfs2_alloc *al = NULL;
int error;
gfs2_write_calc_reserv(ip, sizeof(struct gfs2_quota),
nalloc++;
}
- al = gfs2_alloc_get(ip);
- if (!al) {
- error = -ENOMEM;
- goto out_gunlock;
- }
/*
* 1 blk for unstuffing inode if stuffed. We add this extra
* block to the reservation unconditionally. If the inode
* doesn't need unstuffing, the block will be released to the
* rgrp since it won't be allocated during the transaction
*/
- al->al_requested = 1;
/* +3 in the end for unstuffing block, inode size update block
* and another block in case quota straddles page boundary and
* two blocks need to be updated instead of 1 */
blocks = num_qd * data_blocks + RES_DINODE + num_qd + 3;
- if (nalloc)
- al->al_requested += nalloc * (data_blocks + ind_blocks);
- error = gfs2_inplace_reserve(ip);
+ error = gfs2_inplace_reserve(ip, 1 +
+ (nalloc * (data_blocks + ind_blocks)));
if (error)
goto out_alloc;
out_ipres:
gfs2_inplace_release(ip);
out_alloc:
- gfs2_alloc_put(ip);
-out_gunlock:
gfs2_glock_dq_uninit(&i_gh);
out:
while (qx--)
int gfs2_quota_lock(struct gfs2_inode *ip, u32 uid, u32 gid)
{
struct gfs2_sbd *sdp = GFS2_SB(&ip->i_inode);
- struct gfs2_alloc *al = ip->i_alloc;
+ struct gfs2_qadata *qa = ip->i_qadata;
struct gfs2_quota_data *qd;
unsigned int x;
int error = 0;
sdp->sd_args.ar_quota != GFS2_QUOTA_ON)
return 0;
- sort(al->al_qd, al->al_qd_num, sizeof(struct gfs2_quota_data *),
+ sort(qa->qa_qd, qa->qa_qd_num, sizeof(struct gfs2_quota_data *),
sort_qd, NULL);
- for (x = 0; x < al->al_qd_num; x++) {
+ for (x = 0; x < qa->qa_qd_num; x++) {
int force = NO_FORCE;
- qd = al->al_qd[x];
+ qd = qa->qa_qd[x];
if (test_and_clear_bit(QDF_REFRESH, &qd->qd_flags))
force = FORCE;
- error = do_glock(qd, force, &al->al_qd_ghs[x]);
+ error = do_glock(qd, force, &qa->qa_qd_ghs[x]);
if (error)
break;
}
set_bit(GIF_QD_LOCKED, &ip->i_flags);
else {
while (x--)
- gfs2_glock_dq_uninit(&al->al_qd_ghs[x]);
+ gfs2_glock_dq_uninit(&qa->qa_qd_ghs[x]);
gfs2_quota_unhold(ip);
}
void gfs2_quota_unlock(struct gfs2_inode *ip)
{
- struct gfs2_alloc *al = ip->i_alloc;
+ struct gfs2_qadata *qa = ip->i_qadata;
struct gfs2_quota_data *qda[4];
unsigned int count = 0;
unsigned int x;
if (!test_and_clear_bit(GIF_QD_LOCKED, &ip->i_flags))
goto out;
- for (x = 0; x < al->al_qd_num; x++) {
+ for (x = 0; x < qa->qa_qd_num; x++) {
struct gfs2_quota_data *qd;
int sync;
- qd = al->al_qd[x];
+ qd = qa->qa_qd[x];
sync = need_sync(qd);
- gfs2_glock_dq_uninit(&al->al_qd_ghs[x]);
+ gfs2_glock_dq_uninit(&qa->qa_qd_ghs[x]);
if (sync && qd_trylock(qd))
qda[count++] = qd;
int gfs2_quota_check(struct gfs2_inode *ip, u32 uid, u32 gid)
{
struct gfs2_sbd *sdp = GFS2_SB(&ip->i_inode);
- struct gfs2_alloc *al = ip->i_alloc;
+ struct gfs2_qadata *qa = ip->i_qadata;
struct gfs2_quota_data *qd;
s64 value;
unsigned int x;
if (sdp->sd_args.ar_quota != GFS2_QUOTA_ON)
return 0;
- for (x = 0; x < al->al_qd_num; x++) {
- qd = al->al_qd[x];
+ for (x = 0; x < qa->qa_qd_num; x++) {
+ qd = qa->qa_qd[x];
if (!((qd->qd_id == uid && test_bit(QDF_USER, &qd->qd_flags)) ||
(qd->qd_id == gid && !test_bit(QDF_USER, &qd->qd_flags))))
void gfs2_quota_change(struct gfs2_inode *ip, s64 change,
u32 uid, u32 gid)
{
- struct gfs2_alloc *al = ip->i_alloc;
+ struct gfs2_qadata *qa = ip->i_qadata;
struct gfs2_quota_data *qd;
unsigned int x;
if (ip->i_diskflags & GFS2_DIF_SYSTEM)
return;
- for (x = 0; x < al->al_qd_num; x++) {
- qd = al->al_qd[x];
+ for (x = 0; x < qa->qa_qd_num; x++) {
+ qd = qa->qa_qd[x];
if ((qd->qd_id == uid && test_bit(QDF_USER, &qd->qd_flags)) ||
(qd->qd_id == gid && !test_bit(QDF_USER, &qd->qd_flags))) {
/* Check for & recover partially truncated inodes */
quotad_check_trunc_list(sdp);
- if (freezing(current))
- refrigerator();
+ try_to_freeze();
+
t = min(quotad_timeo, statfs_timeo);
prepare_to_wait(&sdp->sd_quota_wait, &wait, TASK_INTERRUPTIBLE);
unsigned int data_blocks, ind_blocks;
unsigned int blocks = 0;
int alloc_required;
- struct gfs2_alloc *al;
loff_t offset;
int error;
if (gfs2_is_stuffed(ip))
alloc_required = 1;
if (alloc_required) {
- al = gfs2_alloc_get(ip);
- if (al == NULL)
- goto out_i;
gfs2_write_calc_reserv(ip, sizeof(struct gfs2_quota),
&data_blocks, &ind_blocks);
- blocks = al->al_requested = 1 + data_blocks + ind_blocks;
- error = gfs2_inplace_reserve(ip);
+ blocks = 1 + data_blocks + ind_blocks;
+ error = gfs2_inplace_reserve(ip, blocks);
if (error)
- goto out_alloc;
+ goto out_i;
blocks += gfs2_rg_blocks(ip);
}
gfs2_trans_end(sdp);
out_release:
- if (alloc_required) {
+ if (alloc_required)
gfs2_inplace_release(ip);
-out_alloc:
- gfs2_alloc_put(ip);
- }
out_i:
gfs2_glock_dq_uninit(&i_gh);
out_q:
#include <linux/nfs_xdr.h>
#include <linux/slab.h>
#include <linux/compat.h>
+ #include <linux/freezer.h>
#include <asm/system.h>
#include <asm/uaccess.h>
{
if (fatal_signal_pending(current))
return -ERESTARTSYS;
- schedule();
+ freezable_schedule();
return 0;
}
nfs_revalidate_inode(server, inode);
}
-struct nfs_open_context *alloc_nfs_open_context(struct dentry *dentry, struct rpc_cred *cred, fmode_t f_mode)
+struct nfs_open_context *alloc_nfs_open_context(struct dentry *dentry, fmode_t f_mode)
{
struct nfs_open_context *ctx;
+ struct rpc_cred *cred = rpc_lookup_cred();
+ if (IS_ERR(cred))
+ return ERR_CAST(cred);
ctx = kmalloc(sizeof(*ctx), GFP_KERNEL);
- if (ctx != NULL) {
- nfs_sb_active(dentry->d_sb);
- ctx->dentry = dget(dentry);
- ctx->cred = get_rpccred(cred);
- ctx->state = NULL;
- ctx->mode = f_mode;
- ctx->flags = 0;
- ctx->error = 0;
- nfs_init_lock_context(&ctx->lock_context);
- ctx->lock_context.open_context = ctx;
- INIT_LIST_HEAD(&ctx->list);
+ if (!ctx) {
+ put_rpccred(cred);
+ return ERR_PTR(-ENOMEM);
}
+ nfs_sb_active(dentry->d_sb);
+ ctx->dentry = dget(dentry);
+ ctx->cred = cred;
+ ctx->state = NULL;
+ ctx->mode = f_mode;
+ ctx->flags = 0;
+ ctx->error = 0;
+ nfs_init_lock_context(&ctx->lock_context);
+ ctx->lock_context.open_context = ctx;
+ INIT_LIST_HEAD(&ctx->list);
return ctx;
}
int nfs_open(struct inode *inode, struct file *filp)
{
struct nfs_open_context *ctx;
- struct rpc_cred *cred;
- cred = rpc_lookup_cred();
- if (IS_ERR(cred))
- return PTR_ERR(cred);
- ctx = alloc_nfs_open_context(filp->f_path.dentry, cred, filp->f_mode);
- put_rpccred(cred);
- if (ctx == NULL)
- return -ENOMEM;
+ ctx = alloc_nfs_open_context(filp->f_path.dentry, filp->f_mode);
+ if (IS_ERR(ctx))
+ return PTR_ERR(ctx);
nfs_file_set_open_context(filp, ctx);
put_nfs_open_context(ctx);
nfs_fscache_set_inode_cookie(inode, filp);
static void nfs_i_callback(struct rcu_head *head)
{
struct inode *inode = container_of(head, struct inode, i_rcu);
- INIT_LIST_HEAD(&inode->i_dentry);
kmem_cache_free(nfs_inode_cachep, NFS_I(inode));
}
struct list_head tmp;
struct blk_plug plug;
- if (unlikely(freezing(current))) {
- set_bit(XBT_FORCE_SLEEP, &target->bt_flags);
+ if (unlikely(freezing(current)))
- refrigerator();
+ try_to_freeze();
- } else {
- clear_bit(XBT_FORCE_SLEEP, &target->bt_flags);
- }
/* sleep for a long time if there is nothing to do. */
if (list_empty(&target->bt_delwri_queue))
u64 dma_mask;
};
extern struct platform_device *platform_device_register_full(
- struct platform_device_info *pdevinfo);
+ const struct platform_device_info *pdevinfo);
/**
* platform_device_register_resndata - add a platform-level device with
* calling it replaces module_init() and module_exit()
*/
#define module_platform_driver(__platform_driver) \
-static int __init __platform_driver##_init(void) \
-{ \
- return platform_driver_register(&(__platform_driver)); \
-} \
-module_init(__platform_driver##_init); \
-static void __exit __platform_driver##_exit(void) \
-{ \
- platform_driver_unregister(&(__platform_driver)); \
-} \
-module_exit(__platform_driver##_exit);
+ module_driver(__platform_driver, platform_driver_register, \
+ platform_driver_unregister)
extern struct platform_device *platform_create_bundle(struct platform_driver *driver,
int (*probe)(struct platform_device *),
}
#endif /* MODULE */
- #ifdef CONFIG_PM_SLEEP
- extern int platform_pm_prepare(struct device *dev);
- extern void platform_pm_complete(struct device *dev);
- #else
- #define platform_pm_prepare NULL
- #define platform_pm_complete NULL
- #endif
-
#ifdef CONFIG_SUSPEND
extern int platform_pm_suspend(struct device *dev);
- extern int platform_pm_suspend_noirq(struct device *dev);
extern int platform_pm_resume(struct device *dev);
- extern int platform_pm_resume_noirq(struct device *dev);
#else
#define platform_pm_suspend NULL
#define platform_pm_resume NULL
- #define platform_pm_suspend_noirq NULL
- #define platform_pm_resume_noirq NULL
#endif
#ifdef CONFIG_HIBERNATE_CALLBACKS
extern int platform_pm_freeze(struct device *dev);
- extern int platform_pm_freeze_noirq(struct device *dev);
extern int platform_pm_thaw(struct device *dev);
- extern int platform_pm_thaw_noirq(struct device *dev);
extern int platform_pm_poweroff(struct device *dev);
- extern int platform_pm_poweroff_noirq(struct device *dev);
extern int platform_pm_restore(struct device *dev);
- extern int platform_pm_restore_noirq(struct device *dev);
#else
#define platform_pm_freeze NULL
#define platform_pm_thaw NULL
#define platform_pm_poweroff NULL
#define platform_pm_restore NULL
- #define platform_pm_freeze_noirq NULL
- #define platform_pm_thaw_noirq NULL
- #define platform_pm_poweroff_noirq NULL
- #define platform_pm_restore_noirq NULL
#endif
#ifdef CONFIG_PM_SLEEP
#define USE_PLATFORM_PM_SLEEP_OPS \
- .prepare = platform_pm_prepare, \
- .complete = platform_pm_complete, \
.suspend = platform_pm_suspend, \
.resume = platform_pm_resume, \
.freeze = platform_pm_freeze, \
.thaw = platform_pm_thaw, \
.poweroff = platform_pm_poweroff, \
- .restore = platform_pm_restore, \
- .suspend_noirq = platform_pm_suspend_noirq, \
- .resume_noirq = platform_pm_resume_noirq, \
- .freeze_noirq = platform_pm_freeze_noirq, \
- .thaw_noirq = platform_pm_thaw_noirq, \
- .poweroff_noirq = platform_pm_poweroff_noirq, \
- .restore_noirq = platform_pm_restore_noirq,
+ .restore = platform_pm_restore,
#else
#define USE_PLATFORM_PM_SLEEP_OPS
#endif
((task->state & (__TASK_STOPPED | __TASK_TRACED)) != 0)
#define task_contributes_to_load(task) \
((task->state & TASK_UNINTERRUPTIBLE) != 0 && \
- (task->flags & PF_FREEZING) == 0)
+ (task->flags & PF_FROZEN) == 0)
#define __set_task_state(tsk, state_value) \
do { (tsk)->state = (state_value); } while (0)
#if defined(CONFIG_SMP) && defined(CONFIG_NO_HZ)
extern void select_nohz_load_balancer(int stop_tick);
+extern void set_cpu_sd_state_idle(void);
extern int get_nohz_timer_target(void);
#else
static inline void select_nohz_load_balancer(int stop_tick) { }
+static inline void set_cpu_sd_state_idle(void) { }
#endif
/*
#define INIT_CPUTIME \
(struct task_cputime) { \
- .utime = cputime_zero, \
- .stime = cputime_zero, \
+ .utime = 0, \
+ .stime = 0, \
.sum_exec_runtime = 0, \
}
* single CPU.
*/
unsigned int power, power_orig;
+ /*
+ * Number of busy cpus in this group.
+ */
+ atomic_t nr_busy_cpus;
};
struct sched_group {
return to_cpumask(sg->cpumask);
}
+/**
+ * group_first_cpu - Returns the first cpu in the cpumask of a sched_group.
+ * @group: The group whose first cpu is to be returned.
+ */
+static inline unsigned int group_first_cpu(struct sched_group *group)
+{
+ return cpumask_first(sched_group_cpus(group));
+}
+
struct sched_domain_attr {
int relax_domain_level;
};
* older sibling, respectively. (p->father can be replaced with
* p->real_parent->pid)
*/
- struct task_struct *real_parent; /* real parent process */
- struct task_struct *parent; /* recipient of SIGCHLD, wait4() reports */
+ struct task_struct __rcu *real_parent; /* real parent process */
+ struct task_struct __rcu *parent; /* recipient of SIGCHLD, wait4() reports */
/*
* children/sibling forms the list of my natural children
*/
#define PF_MEMALLOC 0x00000800 /* Allocating memory */
#define PF_NPROC_EXCEEDED 0x00001000 /* set_user noticed that RLIMIT_NPROC was exceeded */
#define PF_USED_MATH 0x00002000 /* if unset the fpu must be initialized before use */
- #define PF_FREEZING 0x00004000 /* freeze in progress. do not account to load */
#define PF_NOFREEZE 0x00008000 /* this thread should not be frozen */
#define PF_FROZEN 0x00010000 /* frozen for system suspend */
#define PF_FSTRANS 0x00020000 /* inside a filesystem transaction */
#define PF_MEMPOLICY 0x10000000 /* Non-default NUMA mempolicy */
#define PF_MUTEX_TESTER 0x20000000 /* Thread belongs to the rt mutex tester */
#define PF_FREEZER_SKIP 0x40000000 /* Freezer should not count it as freezable */
- #define PF_FREEZER_NOSIG 0x80000000 /* Freezer won't send signals to it */
/*
* Only the _current_ task can read/write to tsk->flags, but other
extern int sched_setscheduler_nocheck(struct task_struct *, int,
const struct sched_param *);
extern struct task_struct *idle_task(int cpu);
+/**
+ * is_idle_task - is the specified task an idle task?
+ * @tsk: the task in question.
+ */
+static inline bool is_idle_task(struct task_struct *p)
+{
+ return p->pid == 0;
+}
extern struct task_struct *curr_task(int cpu);
extern void set_curr_task(int cpu, struct task_struct *p);
write_lock_irq(&tasklist_lock);
for_each_process(p) {
if (task_cpu(p) == cpu && p->state == TASK_RUNNING &&
- (!cputime_eq(p->utime, cputime_zero) ||
- !cputime_eq(p->stime, cputime_zero)))
+ (p->utime || p->stime))
printk(KERN_WARNING "Task %s (pid = %d) is on cpu %d "
"(state = %ld, flags = %x)\n",
p->comm, task_pid_nr(p), cpu,
cpu_maps_update_done();
return err;
}
+EXPORT_SYMBOL_GPL(cpu_up);
#ifdef CONFIG_PM_SLEEP_SMP
static cpumask_var_t frozen_cpus;
cpu_maps_update_done();
}
- static int alloc_frozen_cpus(void)
+ static int __init alloc_frozen_cpus(void)
{
if (!alloc_cpumask_var(&frozen_cpus, GFP_KERNEL|__GFP_ZERO))
return -ENOMEM;
}
- int cpu_hotplug_pm_sync_init(void)
+ static int __init cpu_hotplug_pm_sync_init(void)
{
pm_notifier(cpu_hotplug_pm_callback, 0);
return 0;
* We won't ever get here for the group leader, since it
* will have been the last reference on the signal_struct.
*/
- sig->utime = cputime_add(sig->utime, tsk->utime);
- sig->stime = cputime_add(sig->stime, tsk->stime);
- sig->gtime = cputime_add(sig->gtime, tsk->gtime);
+ sig->utime += tsk->utime;
+ sig->stime += tsk->stime;
+ sig->gtime += tsk->gtime;
sig->min_flt += tsk->min_flt;
sig->maj_flt += tsk->maj_flt;
sig->nvcsw += tsk->nvcsw;
tsk->mm = NULL;
up_read(&mm->mmap_sem);
enter_lazy_tlb(mm, current);
- /* We don't want this task to be frozen prematurely */
- clear_freeze_flag(tsk);
task_unlock(tsk);
mm_update_next_owner(mm);
mmput(mm);
exit_rcu();
/* causes final put_task_struct in finish_task_switch(). */
tsk->state = TASK_DEAD;
+ tsk->flags |= PF_NOFREEZE; /* tell freezer to ignore us */
schedule();
BUG();
/* Avoid "noreturn function does return". */
spin_lock_irq(&p->real_parent->sighand->siglock);
psig = p->real_parent->signal;
sig = p->signal;
- psig->cutime =
- cputime_add(psig->cutime,
- cputime_add(tgutime,
- sig->cutime));
- psig->cstime =
- cputime_add(psig->cstime,
- cputime_add(tgstime,
- sig->cstime));
- psig->cgtime =
- cputime_add(psig->cgtime,
- cputime_add(p->gtime,
- cputime_add(sig->gtime,
- sig->cgtime)));
+ psig->cutime += tgutime + sig->cutime;
+ psig->cstime += tgstime + sig->cstime;
+ psig->cgtime += p->gtime + sig->gtime + sig->cgtime;
psig->cmin_flt +=
p->min_flt + sig->min_flt + sig->cmin_flt;
psig->cmaj_flt +=
}
/* dead body doesn't have much to contribute */
- if (p->exit_state == EXIT_DEAD)
+ if (unlikely(p->exit_state == EXIT_DEAD)) {
+ /*
+ * But do not ignore this task until the tracer does
+ * wait_task_zombie()->do_notify_parent().
+ */
+ if (likely(!ptrace) && unlikely(ptrace_reparented(p)))
+ wo->notask_error = 0;
return 0;
+ }
/* slay zombie? */
if (p->exit_state == EXIT_ZOMBIE) {
new_flags |= PF_FORKNOEXEC;
new_flags |= PF_STARTING;
p->flags = new_flags;
- clear_freeze_flag(p);
}
SYSCALL_DEFINE1(set_tid_address, int __user *, tidptr)
*/
static void posix_cpu_timers_init(struct task_struct *tsk)
{
- tsk->cputime_expires.prof_exp = cputime_zero;
- tsk->cputime_expires.virt_exp = cputime_zero;
+ tsk->cputime_expires.prof_exp = 0;
+ tsk->cputime_expires.virt_exp = 0;
tsk->cputime_expires.sched_exp = 0;
INIT_LIST_HEAD(&tsk->cpu_timers[0]);
INIT_LIST_HEAD(&tsk->cpu_timers[1]);
init_sigpending(&p->pending);
- p->utime = cputime_zero;
- p->stime = cputime_zero;
- p->gtime = cputime_zero;
- p->utimescaled = cputime_zero;
- p->stimescaled = cputime_zero;
+ p->utime = p->stime = p->gtime = 0;
+ p->utimescaled = p->stimescaled = 0;
#ifndef CONFIG_VIRT_CPU_ACCOUNTING
- p->prev_utime = cputime_zero;
- p->prev_stime = cputime_zero;
+ p->prev_utime = p->prev_stime = 0;
#endif
#if defined(SPLIT_RSS_COUNTING)
memset(&p->rss_stat, 0, sizeof(p->rss_stat));
projects / linux.git / commitdiff