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Commit f5238689 authored by Rafael J. Wysocki's avatar Rafael J. Wysocki
Browse files

Merge branches 'pm-sleep' and 'pm-runtime' 

* pm-sleep:
  PM / hibernate: exclude freed pages from allocated pages printout
  PM / sleep: export suspend_resume trace event
  PM / sleep: Mention async suspend in PM_TRACE documentation
  PM / hibernate: Remove unused function

* pm-runtime:
  ACPI / PM: Remove unneeded nested #ifdef
  USB / PM: Remove unneeded #ifdef and associated dead code
parents f7cc61f0 a64fc82c 8dcb52cb

Documentation/power/s2ram.txt

+4 −0
Original line number Diff line number Diff line
@@ -69,6 +69,10 @@ Reason for this is that the RTC is the only reliably available piece of 
hardware during resume operations where a value can be set that will

survive a reboot.



pm_trace is not compatible with asynchronous suspend, so it turns

asynchronous suspend off (which may work around timing or

ordering-sensitive bugs).



Consequence is that after a resume (even if it is successful) your system

clock will have a value corresponding to the magic number instead of the

correct date/time! It is therefore advisable to use a program like ntp-date

drivers/acpi/device_pm.c

+0 −2
Original line number Diff line number Diff line
@@ -1027,7 +1027,6 @@ EXPORT_SYMBOL_GPL(acpi_subsys_freeze); 


static struct dev_pm_domain acpi_general_pm_domain = {

	.ops = {

#ifdef CONFIG_PM

		.runtime_suspend = acpi_subsys_runtime_suspend,

		.runtime_resume = acpi_subsys_runtime_resume,

#ifdef CONFIG_PM_SLEEP
@@ -1040,7 +1039,6 @@ static struct dev_pm_domain acpi_general_pm_domain = { 
		.poweroff = acpi_subsys_suspend,

		.poweroff_late = acpi_subsys_suspend_late,

		.restore_early = acpi_subsys_resume_early,

#endif

#endif

	},

};

drivers/usb/core/hub.c

+0 −12
Original line number Diff line number Diff line
@@ -3452,8 +3452,6 @@ int usb_port_resume(struct usb_device *udev, pm_message_t msg) 
	return status;

}



#ifdef	CONFIG_PM



int usb_remote_wakeup(struct usb_device *udev)

{

	int	status = 0;
@@ -3512,16 +3510,6 @@ static int hub_handle_remote_wakeup(struct usb_hub *hub, unsigned int port, 
	return connect_change;

}



#else



static int hub_handle_remote_wakeup(struct usb_hub *hub, unsigned int port,

		u16 portstatus, u16 portchange)

{

	return 0;

}



#endif



static int check_ports_changed(struct usb_hub *hub)

{

	int port1;

kernel/power/snapshot.c

+6 −5
Original line number Diff line number Diff line
@@ -1472,9 +1472,9 @@ static inline unsigned long preallocate_highmem_fraction(unsigned long nr_pages, 
/**

 * free_unnecessary_pages - Release preallocated pages not needed for the image

 */

static void free_unnecessary_pages(void)

static unsigned long free_unnecessary_pages(void)

{

	unsigned long save, to_free_normal, to_free_highmem;

	unsigned long save, to_free_normal, to_free_highmem, free;



	save = count_data_pages();

	if (alloc_normal >= save) {
@@ -1495,6 +1495,7 @@ static void free_unnecessary_pages(void) 
		else

			to_free_normal = 0;

	}

	free = to_free_normal + to_free_highmem;



	memory_bm_position_reset(&copy_bm);
@@ -1518,6 +1519,8 @@ static void free_unnecessary_pages(void) 
		swsusp_unset_page_free(page);

		__free_page(page);

	}



	return free;

}



/**
@@ -1707,7 +1710,7 @@ int hibernate_preallocate_memory(void) 
	 * pages in memory, but we have allocated more.  Release the excessive

	 * ones now.

	 */

	free_unnecessary_pages();

	pages -= free_unnecessary_pages();



 out:

	stop = ktime_get();
@@ -2310,8 +2313,6 @@ static inline void free_highmem_data(void) 
		free_image_page(buffer, PG_UNSAFE_CLEAR);

}

#else

static inline int get_safe_write_buffer(void) { return 0; }



static unsigned int

count_highmem_image_pages(struct memory_bitmap *bm) { return 0; }

kernel/trace/power-traces.c

+1 −0
Original line number Diff line number Diff line
@@ -13,5 +13,6 @@ 
#define CREATE_TRACE_POINTS

#include <trace/events/power.h>



EXPORT_TRACEPOINT_SYMBOL_GPL(suspend_resume);

EXPORT_TRACEPOINT_SYMBOL_GPL(cpu_idle);