diff options
Diffstat (limited to 'kernel/power/hibernate.c')
| -rw-r--r-- | kernel/power/hibernate.c | 9 |
1 files changed, 9 insertions, 0 deletions
diff --git a/kernel/power/hibernate.c b/kernel/power/hibernate.c index bbfe472d7524..da5288ec2392 100644 --- a/kernel/power/hibernate.c +++ b/kernel/power/hibernate.c | |||
| @@ -323,6 +323,7 @@ static int create_image(int platform_mode) | |||
| 323 | int hibernation_snapshot(int platform_mode) | 323 | int hibernation_snapshot(int platform_mode) |
| 324 | { | 324 | { |
| 325 | int error; | 325 | int error; |
| 326 | gfp_t saved_mask; | ||
| 326 | 327 | ||
| 327 | error = platform_begin(platform_mode); | 328 | error = platform_begin(platform_mode); |
| 328 | if (error) | 329 | if (error) |
| @@ -334,6 +335,7 @@ int hibernation_snapshot(int platform_mode) | |||
| 334 | goto Close; | 335 | goto Close; |
| 335 | 336 | ||
| 336 | suspend_console(); | 337 | suspend_console(); |
| 338 | saved_mask = clear_gfp_allowed_mask(GFP_IOFS); | ||
| 337 | error = dpm_suspend_start(PMSG_FREEZE); | 339 | error = dpm_suspend_start(PMSG_FREEZE); |
| 338 | if (error) | 340 | if (error) |
| 339 | goto Recover_platform; | 341 | goto Recover_platform; |
| @@ -351,6 +353,7 @@ int hibernation_snapshot(int platform_mode) | |||
| 351 | 353 | ||
| 352 | dpm_resume_end(in_suspend ? | 354 | dpm_resume_end(in_suspend ? |
| 353 | (error ? PMSG_RECOVER : PMSG_THAW) : PMSG_RESTORE); | 355 | (error ? PMSG_RECOVER : PMSG_THAW) : PMSG_RESTORE); |
| 356 | set_gfp_allowed_mask(saved_mask); | ||
| 354 | resume_console(); | 357 | resume_console(); |
| 355 | Close: | 358 | Close: |
| 356 | platform_end(platform_mode); | 359 | platform_end(platform_mode); |
| @@ -445,14 +448,17 @@ static int resume_target_kernel(bool platform_mode) | |||
| 445 | int hibernation_restore(int platform_mode) | 448 | int hibernation_restore(int platform_mode) |
| 446 | { | 449 | { |
| 447 | int error; | 450 | int error; |
| 451 | gfp_t saved_mask; | ||
| 448 | 452 | ||
| 449 | pm_prepare_console(); | 453 | pm_prepare_console(); |
| 450 | suspend_console(); | 454 | suspend_console(); |
| 455 | saved_mask = clear_gfp_allowed_mask(GFP_IOFS); | ||
| 451 | error = dpm_suspend_start(PMSG_QUIESCE); | 456 | error = dpm_suspend_start(PMSG_QUIESCE); |
| 452 | if (!error) { | 457 | if (!error) { |
| 453 | error = resume_target_kernel(platform_mode); | 458 | error = resume_target_kernel(platform_mode); |
| 454 | dpm_resume_end(PMSG_RECOVER); | 459 | dpm_resume_end(PMSG_RECOVER); |
| 455 | } | 460 | } |
| 461 | set_gfp_allowed_mask(saved_mask); | ||
| 456 | resume_console(); | 462 | resume_console(); |
| 457 | pm_restore_console(); | 463 | pm_restore_console(); |
| 458 | return error; | 464 | return error; |
| @@ -466,6 +472,7 @@ int hibernation_restore(int platform_mode) | |||
| 466 | int hibernation_platform_enter(void) | 472 | int hibernation_platform_enter(void) |
| 467 | { | 473 | { |
| 468 | int error; | 474 | int error; |
| 475 | gfp_t saved_mask; | ||
| 469 | 476 | ||
| 470 | if (!hibernation_ops) | 477 | if (!hibernation_ops) |
| 471 | return -ENOSYS; | 478 | return -ENOSYS; |
| @@ -481,6 +488,7 @@ int hibernation_platform_enter(void) | |||
| 481 | 488 | ||
| 482 | entering_platform_hibernation = true; | 489 | entering_platform_hibernation = true; |
| 483 | suspend_console(); | 490 | suspend_console(); |
| 491 | saved_mask = clear_gfp_allowed_mask(GFP_IOFS); | ||
| 484 | error = dpm_suspend_start(PMSG_HIBERNATE); | 492 | error = dpm_suspend_start(PMSG_HIBERNATE); |
| 485 | if (error) { | 493 | if (error) { |
| 486 | if (hibernation_ops->recover) | 494 | if (hibernation_ops->recover) |
| @@ -518,6 +526,7 @@ int hibernation_platform_enter(void) | |||
| 518 | Resume_devices: | 526 | Resume_devices: |
| 519 | entering_platform_hibernation = false; | 527 | entering_platform_hibernation = false; |
| 520 | dpm_resume_end(PMSG_RESTORE); | 528 | dpm_resume_end(PMSG_RESTORE); |
| 529 | set_gfp_allowed_mask(saved_mask); | ||
| 521 | resume_console(); | 530 | resume_console(); |
| 522 | 531 | ||
| 523 | Close: | 532 | Close: |
