diff options
Diffstat (limited to 'kernel/power/hibernate.c')
-rw-r--r-- | kernel/power/hibernate.c | 10 |
1 files changed, 10 insertions, 0 deletions
diff --git a/kernel/power/hibernate.c b/kernel/power/hibernate.c index bbfe472d752..aa9e916da4d 100644 --- a/kernel/power/hibernate.c +++ b/kernel/power/hibernate.c | |||
@@ -22,6 +22,7 @@ | |||
22 | #include <linux/console.h> | 22 | #include <linux/console.h> |
23 | #include <linux/cpu.h> | 23 | #include <linux/cpu.h> |
24 | #include <linux/freezer.h> | 24 | #include <linux/freezer.h> |
25 | #include <linux/gfp.h> | ||
25 | #include <scsi/scsi_scan.h> | 26 | #include <scsi/scsi_scan.h> |
26 | #include <asm/suspend.h> | 27 | #include <asm/suspend.h> |
27 | 28 | ||
@@ -323,6 +324,7 @@ static int create_image(int platform_mode) | |||
323 | int hibernation_snapshot(int platform_mode) | 324 | int hibernation_snapshot(int platform_mode) |
324 | { | 325 | { |
325 | int error; | 326 | int error; |
327 | gfp_t saved_mask; | ||
326 | 328 | ||
327 | error = platform_begin(platform_mode); | 329 | error = platform_begin(platform_mode); |
328 | if (error) | 330 | if (error) |
@@ -334,6 +336,7 @@ int hibernation_snapshot(int platform_mode) | |||
334 | goto Close; | 336 | goto Close; |
335 | 337 | ||
336 | suspend_console(); | 338 | suspend_console(); |
339 | saved_mask = clear_gfp_allowed_mask(GFP_IOFS); | ||
337 | error = dpm_suspend_start(PMSG_FREEZE); | 340 | error = dpm_suspend_start(PMSG_FREEZE); |
338 | if (error) | 341 | if (error) |
339 | goto Recover_platform; | 342 | goto Recover_platform; |
@@ -351,6 +354,7 @@ int hibernation_snapshot(int platform_mode) | |||
351 | 354 | ||
352 | dpm_resume_end(in_suspend ? | 355 | dpm_resume_end(in_suspend ? |
353 | (error ? PMSG_RECOVER : PMSG_THAW) : PMSG_RESTORE); | 356 | (error ? PMSG_RECOVER : PMSG_THAW) : PMSG_RESTORE); |
357 | set_gfp_allowed_mask(saved_mask); | ||
354 | resume_console(); | 358 | resume_console(); |
355 | Close: | 359 | Close: |
356 | platform_end(platform_mode); | 360 | platform_end(platform_mode); |
@@ -445,14 +449,17 @@ static int resume_target_kernel(bool platform_mode) | |||
445 | int hibernation_restore(int platform_mode) | 449 | int hibernation_restore(int platform_mode) |
446 | { | 450 | { |
447 | int error; | 451 | int error; |
452 | gfp_t saved_mask; | ||
448 | 453 | ||
449 | pm_prepare_console(); | 454 | pm_prepare_console(); |
450 | suspend_console(); | 455 | suspend_console(); |
456 | saved_mask = clear_gfp_allowed_mask(GFP_IOFS); | ||
451 | error = dpm_suspend_start(PMSG_QUIESCE); | 457 | error = dpm_suspend_start(PMSG_QUIESCE); |
452 | if (!error) { | 458 | if (!error) { |
453 | error = resume_target_kernel(platform_mode); | 459 | error = resume_target_kernel(platform_mode); |
454 | dpm_resume_end(PMSG_RECOVER); | 460 | dpm_resume_end(PMSG_RECOVER); |
455 | } | 461 | } |
462 | set_gfp_allowed_mask(saved_mask); | ||
456 | resume_console(); | 463 | resume_console(); |
457 | pm_restore_console(); | 464 | pm_restore_console(); |
458 | return error; | 465 | return error; |
@@ -466,6 +473,7 @@ int hibernation_restore(int platform_mode) | |||
466 | int hibernation_platform_enter(void) | 473 | int hibernation_platform_enter(void) |
467 | { | 474 | { |
468 | int error; | 475 | int error; |
476 | gfp_t saved_mask; | ||
469 | 477 | ||
470 | if (!hibernation_ops) | 478 | if (!hibernation_ops) |
471 | return -ENOSYS; | 479 | return -ENOSYS; |
@@ -481,6 +489,7 @@ int hibernation_platform_enter(void) | |||
481 | 489 | ||
482 | entering_platform_hibernation = true; | 490 | entering_platform_hibernation = true; |
483 | suspend_console(); | 491 | suspend_console(); |
492 | saved_mask = clear_gfp_allowed_mask(GFP_IOFS); | ||
484 | error = dpm_suspend_start(PMSG_HIBERNATE); | 493 | error = dpm_suspend_start(PMSG_HIBERNATE); |
485 | if (error) { | 494 | if (error) { |
486 | if (hibernation_ops->recover) | 495 | if (hibernation_ops->recover) |
@@ -518,6 +527,7 @@ int hibernation_platform_enter(void) | |||
518 | Resume_devices: | 527 | Resume_devices: |
519 | entering_platform_hibernation = false; | 528 | entering_platform_hibernation = false; |
520 | dpm_resume_end(PMSG_RESTORE); | 529 | dpm_resume_end(PMSG_RESTORE); |
530 | set_gfp_allowed_mask(saved_mask); | ||
521 | resume_console(); | 531 | resume_console(); |
522 | 532 | ||
523 | Close: | 533 | Close: |