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Lines 447-453
static void memory_bm_free(struct memory
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| 447 |
* of @bm->cur_zone_bm are updated. |
447 |
* of @bm->cur_zone_bm are updated. |
| 448 |
*/ |
448 |
*/ |
| 449 |
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449 |
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| 450 |
static void memory_bm_find_bit(struct memory_bitmap *bm, unsigned long pfn, |
450 |
static int memory_bm_find_bit(struct memory_bitmap *bm, unsigned long pfn, |
| 451 |
void **addr, unsigned int *bit_nr) |
451 |
void **addr, unsigned int *bit_nr) |
| 452 |
{ |
452 |
{ |
| 453 |
struct zone_bitmap *zone_bm; |
453 |
struct zone_bitmap *zone_bm; |
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Lines 461-467
static void memory_bm_find_bit(struct me
Link Here
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| 461 |
while (pfn < zone_bm->start_pfn || pfn >= zone_bm->end_pfn) { |
461 |
while (pfn < zone_bm->start_pfn || pfn >= zone_bm->end_pfn) { |
| 462 |
zone_bm = zone_bm->next; |
462 |
zone_bm = zone_bm->next; |
| 463 |
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463 |
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| 464 |
BUG_ON(!zone_bm); |
464 |
return -EFAULT; |
| 465 |
} |
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} |
| 466 |
bm->cur.zone_bm = zone_bm; |
466 |
bm->cur.zone_bm = zone_bm; |
| 467 |
} |
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} |
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Lines 479-501
static void memory_bm_find_bit(struct me
Link Here
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| 479 |
pfn -= bb->start_pfn; |
479 |
pfn -= bb->start_pfn; |
| 480 |
*bit_nr = pfn % BM_BITS_PER_CHUNK; |
480 |
*bit_nr = pfn % BM_BITS_PER_CHUNK; |
| 481 |
*addr = bb->data + pfn / BM_BITS_PER_CHUNK; |
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*addr = bb->data + pfn / BM_BITS_PER_CHUNK; |
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482 |
return 0; |
| 482 |
} |
483 |
} |
| 483 |
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484 |
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| 484 |
static void memory_bm_set_bit(struct memory_bitmap *bm, unsigned long pfn) |
485 |
static void memory_bm_set_bit(struct memory_bitmap *bm, unsigned long pfn) |
| 485 |
{ |
486 |
{ |
| 486 |
void *addr; |
487 |
void *addr; |
| 487 |
unsigned int bit; |
488 |
unsigned int bit; |
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|
489 |
int error; |
| 488 |
|
490 |
|
| 489 |
memory_bm_find_bit(bm, pfn, &addr, &bit); |
491 |
error = memory_bm_find_bit(bm, pfn, &addr, &bit); |
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492 |
BUG_ON(error); |
| 490 |
set_bit(bit, addr); |
493 |
set_bit(bit, addr); |
| 491 |
} |
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} |
| 492 |
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495 |
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static int mem_bm_set_bit_check(struct memory_bitmap *bm, unsigned long pfn) |
| 497 |
{ |
| 498 |
void *addr; |
| 499 |
unsigned int bit; |
| 500 |
int error; |
| 501 |
|
| 502 |
error = memory_bm_find_bit(bm, pfn, &addr, &bit); |
| 503 |
if (!error) |
| 504 |
set_bit(bit, addr); |
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return error; |
| 506 |
} |
| 507 |
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| 493 |
static void memory_bm_clear_bit(struct memory_bitmap *bm, unsigned long pfn) |
508 |
static void memory_bm_clear_bit(struct memory_bitmap *bm, unsigned long pfn) |
| 494 |
{ |
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{ |
| 495 |
void *addr; |
510 |
void *addr; |
| 496 |
unsigned int bit; |
511 |
unsigned int bit; |
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512 |
int error; |
| 497 |
|
513 |
|
| 498 |
memory_bm_find_bit(bm, pfn, &addr, &bit); |
514 |
error = memory_bm_find_bit(bm, pfn, &addr, &bit); |
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BUG_ON(error); |
| 499 |
clear_bit(bit, addr); |
516 |
clear_bit(bit, addr); |
| 500 |
} |
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} |
| 501 |
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518 |
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Lines 503-510
static int memory_bm_test_bit(struct mem
Link Here
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| 503 |
{ |
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{ |
| 504 |
void *addr; |
521 |
void *addr; |
| 505 |
unsigned int bit; |
522 |
unsigned int bit; |
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|
523 |
int error; |
| 506 |
|
524 |
|
| 507 |
memory_bm_find_bit(bm, pfn, &addr, &bit); |
525 |
error = memory_bm_find_bit(bm, pfn, &addr, &bit); |
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BUG_ON(error); |
| 508 |
return test_bit(bit, addr); |
527 |
return test_bit(bit, addr); |
| 509 |
} |
528 |
} |
| 510 |
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Lines 708-716
static void mark_nosave_pages(struct mem
Link Here
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| 708 |
region->start_pfn << PAGE_SHIFT, |
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region->start_pfn << PAGE_SHIFT, |
| 709 |
region->end_pfn << PAGE_SHIFT); |
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region->end_pfn << PAGE_SHIFT); |
| 710 |
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729 |
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| 711 |
for (pfn = region->start_pfn; pfn < region->end_pfn; pfn++) |
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for (pfn = region->start_pfn; pfn < region->end_pfn; pfn++) { |
| 712 |
if (pfn_valid(pfn)) |
731 |
if (!pfn_valid(pfn)) |
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memory_bm_set_bit(bm, pfn); |
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continue; |
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733 |
if (mem_bm_set_bit_check(bm, pfn)) |
| 734 |
printk(KERN_ERR "PM: Invalid pfn: %lu\n", pfn); |
| 735 |
} |
| 714 |
} |
736 |
} |
| 715 |
} |
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} |
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