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Merge back 'pm-sleep' material for 3.19-rc1.
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commit
c68cfdc0a5
@ -28,6 +28,7 @@
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#include <linux/syscore_ops.h>
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#include <linux/ctype.h>
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#include <linux/genhd.h>
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#include <linux/ktime.h>
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#include <trace/events/power.h>
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#include "power.h"
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@ -232,20 +233,17 @@ static void platform_recover(int platform_mode)
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* @nr_pages: Number of memory pages processed between @start and @stop.
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* @msg: Additional diagnostic message to print.
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*/
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void swsusp_show_speed(struct timeval *start, struct timeval *stop,
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unsigned nr_pages, char *msg)
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void swsusp_show_speed(ktime_t start, ktime_t stop,
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unsigned nr_pages, char *msg)
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{
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ktime_t diff;
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u64 elapsed_centisecs64;
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unsigned int centisecs;
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unsigned int k;
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unsigned int kps;
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elapsed_centisecs64 = timeval_to_ns(stop) - timeval_to_ns(start);
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/*
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* If "(s64)elapsed_centisecs64 < 0", it will print long elapsed time,
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* it is obvious enough for what went wrong.
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*/
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do_div(elapsed_centisecs64, NSEC_PER_SEC / 100);
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diff = ktime_sub(stop, start);
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elapsed_centisecs64 = ktime_divns(diff, 10*NSEC_PER_MSEC);
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centisecs = elapsed_centisecs64;
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if (centisecs == 0)
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centisecs = 1; /* avoid div-by-zero */
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@ -174,8 +174,7 @@ extern int hib_wait_on_bio_chain(struct bio **bio_chain);
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struct timeval;
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/* kernel/power/swsusp.c */
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extern void swsusp_show_speed(struct timeval *, struct timeval *,
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unsigned int, char *);
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extern void swsusp_show_speed(ktime_t, ktime_t, unsigned int, char *);
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#ifdef CONFIG_SUSPEND
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/* kernel/power/suspend.c */
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@ -28,6 +28,7 @@
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#include <linux/list.h>
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#include <linux/slab.h>
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#include <linux/compiler.h>
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#include <linux/ktime.h>
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#include <asm/uaccess.h>
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#include <asm/mmu_context.h>
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@ -1576,11 +1577,11 @@ int hibernate_preallocate_memory(void)
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struct zone *zone;
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unsigned long saveable, size, max_size, count, highmem, pages = 0;
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unsigned long alloc, save_highmem, pages_highmem, avail_normal;
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struct timeval start, stop;
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ktime_t start, stop;
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int error;
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printk(KERN_INFO "PM: Preallocating image memory... ");
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do_gettimeofday(&start);
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start = ktime_get();
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error = memory_bm_create(&orig_bm, GFP_IMAGE, PG_ANY);
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if (error)
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@ -1709,9 +1710,9 @@ int hibernate_preallocate_memory(void)
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free_unnecessary_pages();
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out:
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do_gettimeofday(&stop);
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stop = ktime_get();
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printk(KERN_CONT "done (allocated %lu pages)\n", pages);
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swsusp_show_speed(&start, &stop, pages, "Allocated");
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swsusp_show_speed(start, stop, pages, "Allocated");
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return 0;
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@ -30,6 +30,7 @@
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#include <linux/atomic.h>
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#include <linux/kthread.h>
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#include <linux/crc32.h>
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#include <linux/ktime.h>
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#include "power.h"
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@ -445,8 +446,8 @@ static int save_image(struct swap_map_handle *handle,
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int nr_pages;
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int err2;
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struct bio *bio;
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struct timeval start;
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struct timeval stop;
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ktime_t start;
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ktime_t stop;
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printk(KERN_INFO "PM: Saving image data pages (%u pages)...\n",
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nr_to_write);
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@ -455,7 +456,7 @@ static int save_image(struct swap_map_handle *handle,
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m = 1;
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nr_pages = 0;
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bio = NULL;
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do_gettimeofday(&start);
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start = ktime_get();
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while (1) {
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ret = snapshot_read_next(snapshot);
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if (ret <= 0)
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@ -469,12 +470,12 @@ static int save_image(struct swap_map_handle *handle,
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nr_pages++;
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}
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err2 = hib_wait_on_bio_chain(&bio);
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do_gettimeofday(&stop);
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stop = ktime_get();
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if (!ret)
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ret = err2;
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if (!ret)
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printk(KERN_INFO "PM: Image saving done.\n");
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swsusp_show_speed(&start, &stop, nr_to_write, "Wrote");
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swsusp_show_speed(start, stop, nr_to_write, "Wrote");
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return ret;
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}
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@ -580,8 +581,8 @@ static int save_image_lzo(struct swap_map_handle *handle,
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int nr_pages;
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int err2;
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struct bio *bio;
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struct timeval start;
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struct timeval stop;
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ktime_t start;
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ktime_t stop;
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size_t off;
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unsigned thr, run_threads, nr_threads;
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unsigned char *page = NULL;
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@ -674,7 +675,7 @@ static int save_image_lzo(struct swap_map_handle *handle,
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m = 1;
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nr_pages = 0;
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bio = NULL;
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do_gettimeofday(&start);
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start = ktime_get();
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for (;;) {
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for (thr = 0; thr < nr_threads; thr++) {
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for (off = 0; off < LZO_UNC_SIZE; off += PAGE_SIZE) {
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@ -759,12 +760,12 @@ static int save_image_lzo(struct swap_map_handle *handle,
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out_finish:
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err2 = hib_wait_on_bio_chain(&bio);
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do_gettimeofday(&stop);
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stop = ktime_get();
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if (!ret)
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ret = err2;
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if (!ret)
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printk(KERN_INFO "PM: Image saving done.\n");
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swsusp_show_speed(&start, &stop, nr_to_write, "Wrote");
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swsusp_show_speed(start, stop, nr_to_write, "Wrote");
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out_clean:
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if (crc) {
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if (crc->thr)
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@ -965,8 +966,8 @@ static int load_image(struct swap_map_handle *handle,
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{
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unsigned int m;
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int ret = 0;
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struct timeval start;
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struct timeval stop;
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ktime_t start;
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ktime_t stop;
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struct bio *bio;
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int err2;
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unsigned nr_pages;
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@ -978,7 +979,7 @@ static int load_image(struct swap_map_handle *handle,
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m = 1;
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nr_pages = 0;
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bio = NULL;
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do_gettimeofday(&start);
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start = ktime_get();
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for ( ; ; ) {
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ret = snapshot_write_next(snapshot);
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if (ret <= 0)
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@ -996,7 +997,7 @@ static int load_image(struct swap_map_handle *handle,
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nr_pages++;
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}
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err2 = hib_wait_on_bio_chain(&bio);
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do_gettimeofday(&stop);
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stop = ktime_get();
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if (!ret)
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ret = err2;
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if (!ret) {
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@ -1005,7 +1006,7 @@ static int load_image(struct swap_map_handle *handle,
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if (!snapshot_image_loaded(snapshot))
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ret = -ENODATA;
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}
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swsusp_show_speed(&start, &stop, nr_to_read, "Read");
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swsusp_show_speed(start, stop, nr_to_read, "Read");
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return ret;
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}
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@ -1067,8 +1068,8 @@ static int load_image_lzo(struct swap_map_handle *handle,
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int ret = 0;
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int eof = 0;
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struct bio *bio;
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struct timeval start;
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struct timeval stop;
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ktime_t start;
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ktime_t stop;
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unsigned nr_pages;
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size_t off;
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unsigned i, thr, run_threads, nr_threads;
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@ -1190,7 +1191,7 @@ static int load_image_lzo(struct swap_map_handle *handle,
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m = 1;
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nr_pages = 0;
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bio = NULL;
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do_gettimeofday(&start);
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start = ktime_get();
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ret = snapshot_write_next(snapshot);
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if (ret <= 0)
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@ -1343,7 +1344,7 @@ out_finish:
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wait_event(crc->done, atomic_read(&crc->stop));
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atomic_set(&crc->stop, 0);
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}
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do_gettimeofday(&stop);
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stop = ktime_get();
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if (!ret) {
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printk(KERN_INFO "PM: Image loading done.\n");
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snapshot_write_finalize(snapshot);
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@ -1359,7 +1360,7 @@ out_finish:
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}
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}
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}
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swsusp_show_speed(&start, &stop, nr_to_read, "Read");
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swsusp_show_speed(start, stop, nr_to_read, "Read");
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out_clean:
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for (i = 0; i < ring_size; i++)
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free_page((unsigned long)page[i]);
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