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-rw-r--r--kernel/power/Makefile2
-rw-r--r--kernel/power/hibernate.c30
-rw-r--r--kernel/power/swsusp.c29
3 files changed, 31 insertions, 30 deletions
diff --git a/kernel/power/Makefile b/kernel/power/Makefile
index c3b81c30e5d5..43191815f874 100644
--- a/kernel/power/Makefile
+++ b/kernel/power/Makefile
@@ -8,7 +8,7 @@ obj-$(CONFIG_PM_SLEEP) += console.o
8obj-$(CONFIG_FREEZER) += process.o 8obj-$(CONFIG_FREEZER) += process.o
9obj-$(CONFIG_SUSPEND) += suspend.o 9obj-$(CONFIG_SUSPEND) += suspend.o
10obj-$(CONFIG_PM_TEST_SUSPEND) += suspend_test.o 10obj-$(CONFIG_PM_TEST_SUSPEND) += suspend_test.o
11obj-$(CONFIG_HIBERNATION) += swsusp.o hibernate.o snapshot.o swap.o user.o 11obj-$(CONFIG_HIBERNATION) += hibernate.o snapshot.o swap.o user.o
12obj-$(CONFIG_HIBERNATION_NVS) += hibernate_nvs.o 12obj-$(CONFIG_HIBERNATION_NVS) += hibernate_nvs.o
13 13
14obj-$(CONFIG_MAGIC_SYSRQ) += poweroff.o 14obj-$(CONFIG_MAGIC_SYSRQ) += poweroff.o
diff --git a/kernel/power/hibernate.c b/kernel/power/hibernate.c
index 04a9e90d248f..bbfe472d7524 100644
--- a/kernel/power/hibernate.c
+++ b/kernel/power/hibernate.c
@@ -32,6 +32,7 @@ static int noresume = 0;
32static char resume_file[256] = CONFIG_PM_STD_PARTITION; 32static char resume_file[256] = CONFIG_PM_STD_PARTITION;
33dev_t swsusp_resume_device; 33dev_t swsusp_resume_device;
34sector_t swsusp_resume_block; 34sector_t swsusp_resume_block;
35int in_suspend __nosavedata = 0;
35 36
36enum { 37enum {
37 HIBERNATION_INVALID, 38 HIBERNATION_INVALID,
@@ -202,6 +203,35 @@ static void platform_recover(int platform_mode)
202} 203}
203 204
204/** 205/**
206 * swsusp_show_speed - print the time elapsed between two events.
207 * @start: Starting event.
208 * @stop: Final event.
209 * @nr_pages - number of pages processed between @start and @stop
210 * @msg - introductory message to print
211 */
212
213void swsusp_show_speed(struct timeval *start, struct timeval *stop,
214 unsigned nr_pages, char *msg)
215{
216 s64 elapsed_centisecs64;
217 int centisecs;
218 int k;
219 int kps;
220
221 elapsed_centisecs64 = timeval_to_ns(stop) - timeval_to_ns(start);
222 do_div(elapsed_centisecs64, NSEC_PER_SEC / 100);
223 centisecs = elapsed_centisecs64;
224 if (centisecs == 0)
225 centisecs = 1; /* avoid div-by-zero */
226 k = nr_pages * (PAGE_SIZE / 1024);
227 kps = (k * 100) / centisecs;
228 printk(KERN_INFO "PM: %s %d kbytes in %d.%02d seconds (%d.%02d MB/s)\n",
229 msg, k,
230 centisecs / 100, centisecs % 100,
231 kps / 1000, (kps % 1000) / 10);
232}
233
234/**
205 * create_image - freeze devices that need to be frozen with interrupts 235 * create_image - freeze devices that need to be frozen with interrupts
206 * off, create the hibernation image and thaw those devices. Control 236 * off, create the hibernation image and thaw those devices. Control
207 * reappears in this routine after a restore. 237 * reappears in this routine after a restore.
diff --git a/kernel/power/swsusp.c b/kernel/power/swsusp.c
index 57222d2089b8..5b3601bd1893 100644
--- a/kernel/power/swsusp.c
+++ b/kernel/power/swsusp.c
@@ -56,32 +56,3 @@
56#include "power.h" 56#include "power.h"
57 57
58int in_suspend __nosavedata = 0; 58int in_suspend __nosavedata = 0;
59
60/**
61 * swsusp_show_speed - print the time elapsed between two events represented by
62 * @start and @stop
63 *
64 * @nr_pages - number of pages processed between @start and @stop
65 * @msg - introductory message to print
66 */
67
68void swsusp_show_speed(struct timeval *start, struct timeval *stop,
69 unsigned nr_pages, char *msg)
70{
71 s64 elapsed_centisecs64;
72 int centisecs;
73 int k;
74 int kps;
75
76 elapsed_centisecs64 = timeval_to_ns(stop) - timeval_to_ns(start);
77 do_div(elapsed_centisecs64, NSEC_PER_SEC / 100);
78 centisecs = elapsed_centisecs64;
79 if (centisecs == 0)
80 centisecs = 1; /* avoid div-by-zero */
81 k = nr_pages * (PAGE_SIZE / 1024);
82 kps = (k * 100) / centisecs;
83 printk(KERN_INFO "PM: %s %d kbytes in %d.%02d seconds (%d.%02d MB/s)\n",
84 msg, k,
85 centisecs / 100, centisecs % 100,
86 kps / 1000, (kps % 1000) / 10);
87}