diff options
Diffstat (limited to 'kernel/power')
| -rw-r--r-- | kernel/power/hibernate.c | 11 | ||||
| -rw-r--r-- | kernel/power/suspend_test.c | 5 | ||||
| -rw-r--r-- | kernel/power/swap.c | 43 |
3 files changed, 33 insertions, 26 deletions
diff --git a/kernel/power/hibernate.c b/kernel/power/hibernate.c index 04b3a83d686f..04a9e90d248f 100644 --- a/kernel/power/hibernate.c +++ b/kernel/power/hibernate.c | |||
| @@ -693,21 +693,22 @@ static int software_resume(void) | |||
| 693 | /* The snapshot device should not be opened while we're running */ | 693 | /* The snapshot device should not be opened while we're running */ |
| 694 | if (!atomic_add_unless(&snapshot_device_available, -1, 0)) { | 694 | if (!atomic_add_unless(&snapshot_device_available, -1, 0)) { |
| 695 | error = -EBUSY; | 695 | error = -EBUSY; |
| 696 | swsusp_close(FMODE_READ); | ||
| 696 | goto Unlock; | 697 | goto Unlock; |
| 697 | } | 698 | } |
| 698 | 699 | ||
| 699 | pm_prepare_console(); | 700 | pm_prepare_console(); |
| 700 | error = pm_notifier_call_chain(PM_RESTORE_PREPARE); | 701 | error = pm_notifier_call_chain(PM_RESTORE_PREPARE); |
| 701 | if (error) | 702 | if (error) |
| 702 | goto Finish; | 703 | goto close_finish; |
| 703 | 704 | ||
| 704 | error = usermodehelper_disable(); | 705 | error = usermodehelper_disable(); |
| 705 | if (error) | 706 | if (error) |
| 706 | goto Finish; | 707 | goto close_finish; |
| 707 | 708 | ||
| 708 | error = create_basic_memory_bitmaps(); | 709 | error = create_basic_memory_bitmaps(); |
| 709 | if (error) | 710 | if (error) |
| 710 | goto Finish; | 711 | goto close_finish; |
| 711 | 712 | ||
| 712 | pr_debug("PM: Preparing processes for restore.\n"); | 713 | pr_debug("PM: Preparing processes for restore.\n"); |
| 713 | error = prepare_processes(); | 714 | error = prepare_processes(); |
| @@ -719,6 +720,7 @@ static int software_resume(void) | |||
| 719 | pr_debug("PM: Reading hibernation image.\n"); | 720 | pr_debug("PM: Reading hibernation image.\n"); |
| 720 | 721 | ||
| 721 | error = swsusp_read(&flags); | 722 | error = swsusp_read(&flags); |
| 723 | swsusp_close(FMODE_READ); | ||
| 722 | if (!error) | 724 | if (!error) |
| 723 | hibernation_restore(flags & SF_PLATFORM_MODE); | 725 | hibernation_restore(flags & SF_PLATFORM_MODE); |
| 724 | 726 | ||
| @@ -737,6 +739,9 @@ static int software_resume(void) | |||
| 737 | mutex_unlock(&pm_mutex); | 739 | mutex_unlock(&pm_mutex); |
| 738 | pr_debug("PM: Resume from disk failed.\n"); | 740 | pr_debug("PM: Resume from disk failed.\n"); |
| 739 | return error; | 741 | return error; |
| 742 | close_finish: | ||
| 743 | swsusp_close(FMODE_READ); | ||
| 744 | goto Finish; | ||
| 740 | } | 745 | } |
| 741 | 746 | ||
| 742 | late_initcall(software_resume); | 747 | late_initcall(software_resume); |
diff --git a/kernel/power/suspend_test.c b/kernel/power/suspend_test.c index 17d8bb1acf9c..25596e450ac7 100644 --- a/kernel/power/suspend_test.c +++ b/kernel/power/suspend_test.c | |||
| @@ -19,7 +19,7 @@ | |||
| 19 | * The time it takes is system-specific though, so when we test this | 19 | * The time it takes is system-specific though, so when we test this |
| 20 | * during system bootup we allow a LOT of time. | 20 | * during system bootup we allow a LOT of time. |
| 21 | */ | 21 | */ |
| 22 | #define TEST_SUSPEND_SECONDS 5 | 22 | #define TEST_SUSPEND_SECONDS 10 |
| 23 | 23 | ||
| 24 | static unsigned long suspend_test_start_time; | 24 | static unsigned long suspend_test_start_time; |
| 25 | 25 | ||
| @@ -49,7 +49,8 @@ void suspend_test_finish(const char *label) | |||
| 49 | * has some performance issues. The stack dump of a WARN_ON | 49 | * has some performance issues. The stack dump of a WARN_ON |
| 50 | * is more likely to get the right attention than a printk... | 50 | * is more likely to get the right attention than a printk... |
| 51 | */ | 51 | */ |
| 52 | WARN(msec > (TEST_SUSPEND_SECONDS * 1000), "Component: %s\n", label); | 52 | WARN(msec > (TEST_SUSPEND_SECONDS * 1000), |
| 53 | "Component: %s, time: %u\n", label, msec); | ||
| 53 | } | 54 | } |
| 54 | 55 | ||
| 55 | /* | 56 | /* |
diff --git a/kernel/power/swap.c b/kernel/power/swap.c index b101cdc4df3f..890f6b11b1d3 100644 --- a/kernel/power/swap.c +++ b/kernel/power/swap.c | |||
| @@ -314,7 +314,6 @@ static int save_image(struct swap_map_handle *handle, | |||
| 314 | { | 314 | { |
| 315 | unsigned int m; | 315 | unsigned int m; |
| 316 | int ret; | 316 | int ret; |
| 317 | int error = 0; | ||
| 318 | int nr_pages; | 317 | int nr_pages; |
| 319 | int err2; | 318 | int err2; |
| 320 | struct bio *bio; | 319 | struct bio *bio; |
| @@ -329,26 +328,27 @@ static int save_image(struct swap_map_handle *handle, | |||
| 329 | nr_pages = 0; | 328 | nr_pages = 0; |
| 330 | bio = NULL; | 329 | bio = NULL; |
| 331 | do_gettimeofday(&start); | 330 | do_gettimeofday(&start); |
| 332 | do { | 331 | while (1) { |
| 333 | ret = snapshot_read_next(snapshot, PAGE_SIZE); | 332 | ret = snapshot_read_next(snapshot, PAGE_SIZE); |
| 334 | if (ret > 0) { | 333 | if (ret <= 0) |
| 335 | error = swap_write_page(handle, data_of(*snapshot), | 334 | break; |
| 336 | &bio); | 335 | ret = swap_write_page(handle, data_of(*snapshot), &bio); |
| 337 | if (error) | 336 | if (ret) |
| 338 | break; | 337 | break; |
| 339 | if (!(nr_pages % m)) | 338 | if (!(nr_pages % m)) |
| 340 | printk("\b\b\b\b%3d%%", nr_pages / m); | 339 | printk("\b\b\b\b%3d%%", nr_pages / m); |
| 341 | nr_pages++; | 340 | nr_pages++; |
| 342 | } | 341 | } |
| 343 | } while (ret > 0); | ||
| 344 | err2 = wait_on_bio_chain(&bio); | 342 | err2 = wait_on_bio_chain(&bio); |
| 345 | do_gettimeofday(&stop); | 343 | do_gettimeofday(&stop); |
| 346 | if (!error) | 344 | if (!ret) |
| 347 | error = err2; | 345 | ret = err2; |
| 348 | if (!error) | 346 | if (!ret) |
| 349 | printk("\b\b\b\bdone\n"); | 347 | printk("\b\b\b\bdone\n"); |
| 348 | else | ||
| 349 | printk("\n"); | ||
| 350 | swsusp_show_speed(&start, &stop, nr_to_write, "Wrote"); | 350 | swsusp_show_speed(&start, &stop, nr_to_write, "Wrote"); |
| 351 | return error; | 351 | return ret; |
| 352 | } | 352 | } |
| 353 | 353 | ||
| 354 | /** | 354 | /** |
| @@ -536,7 +536,8 @@ static int load_image(struct swap_map_handle *handle, | |||
| 536 | snapshot_write_finalize(snapshot); | 536 | snapshot_write_finalize(snapshot); |
| 537 | if (!snapshot_image_loaded(snapshot)) | 537 | if (!snapshot_image_loaded(snapshot)) |
| 538 | error = -ENODATA; | 538 | error = -ENODATA; |
| 539 | } | 539 | } else |
| 540 | printk("\n"); | ||
| 540 | swsusp_show_speed(&start, &stop, nr_to_read, "Read"); | 541 | swsusp_show_speed(&start, &stop, nr_to_read, "Read"); |
| 541 | return error; | 542 | return error; |
| 542 | } | 543 | } |
| @@ -572,8 +573,6 @@ int swsusp_read(unsigned int *flags_p) | |||
| 572 | error = load_image(&handle, &snapshot, header->pages - 1); | 573 | error = load_image(&handle, &snapshot, header->pages - 1); |
| 573 | release_swap_reader(&handle); | 574 | release_swap_reader(&handle); |
| 574 | 575 | ||
| 575 | blkdev_put(resume_bdev, FMODE_READ); | ||
| 576 | |||
| 577 | if (!error) | 576 | if (!error) |
| 578 | pr_debug("PM: Image successfully loaded\n"); | 577 | pr_debug("PM: Image successfully loaded\n"); |
| 579 | else | 578 | else |
| @@ -596,7 +595,7 @@ int swsusp_check(void) | |||
| 596 | error = bio_read_page(swsusp_resume_block, | 595 | error = bio_read_page(swsusp_resume_block, |
| 597 | swsusp_header, NULL); | 596 | swsusp_header, NULL); |
| 598 | if (error) | 597 | if (error) |
| 599 | return error; | 598 | goto put; |
| 600 | 599 | ||
| 601 | if (!memcmp(SWSUSP_SIG, swsusp_header->sig, 10)) { | 600 | if (!memcmp(SWSUSP_SIG, swsusp_header->sig, 10)) { |
| 602 | memcpy(swsusp_header->sig, swsusp_header->orig_sig, 10); | 601 | memcpy(swsusp_header->sig, swsusp_header->orig_sig, 10); |
| @@ -604,8 +603,10 @@ int swsusp_check(void) | |||
| 604 | error = bio_write_page(swsusp_resume_block, | 603 | error = bio_write_page(swsusp_resume_block, |
| 605 | swsusp_header, NULL); | 604 | swsusp_header, NULL); |
| 606 | } else { | 605 | } else { |
| 607 | return -EINVAL; | 606 | error = -EINVAL; |
| 608 | } | 607 | } |
| 608 | |||
| 609 | put: | ||
| 609 | if (error) | 610 | if (error) |
| 610 | blkdev_put(resume_bdev, FMODE_READ); | 611 | blkdev_put(resume_bdev, FMODE_READ); |
| 611 | else | 612 | else |
