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yaml
---
r: 138767
b: refs/heads/master
c: 5368a2b
h: refs/heads/master
i:
  138765: d0cf212
  138763: 559651f
  138759: 2727e76
  138751: 9aeeda1
v: v3
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H. Peter Anvin committed Mar 15, 2009
1 parent 463e676 commit df55019
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Showing 2 changed files with 30 additions and 29 deletions.
2 changes: 1 addition & 1 deletion [refs]
Original file line number Diff line number Diff line change
@@ -1,2 +1,2 @@
---
refs/heads/master: 93dbda7cbcd70a0bd1a99f39f44a9ccde8ab9040
refs/heads/master: 5368a2be34b96fda9c05d79424fa63a73ead04ed
57 changes: 29 additions & 28 deletions trunk/arch/x86/kernel/setup.c
Original file line number Diff line number Diff line change
Expand Up @@ -272,6 +272,35 @@ static inline void copy_edd(void)
}
#endif

void * __init extend_brk(size_t size, size_t align)
{
size_t mask = align - 1;
void *ret;

BUG_ON(_brk_start == 0);
BUG_ON(align & mask);

_brk_end = (_brk_end + mask) & ~mask;
BUG_ON((char *)(_brk_end + size) > __brk_limit);

ret = (void *)_brk_end;
_brk_end += size;

memset(ret, 0, size);

return ret;
}

static void __init reserve_brk(void)
{
if (_brk_end > _brk_start)
reserve_early(__pa(_brk_start), __pa(_brk_end), "BRK");

/* Mark brk area as locked down and no longer taking any
new allocations */
_brk_start = 0;
}

#ifdef CONFIG_BLK_DEV_INITRD

#ifdef CONFIG_X86_32
Expand Down Expand Up @@ -340,34 +369,6 @@ static void __init relocate_initrd(void)
}
#endif

void * __init extend_brk(size_t size, size_t align)
{
size_t mask = align - 1;
void *ret;

BUG_ON(_brk_start == 0);
BUG_ON(align & mask);

_brk_end = (_brk_end + mask) & ~mask;
BUG_ON((char *)(_brk_end + size) > __brk_limit);

ret = (void *)_brk_end;
_brk_end += size;

memset(ret, 0, size);

return ret;
}

static void __init reserve_brk(void)
{
if (_brk_end > _brk_start)
reserve_early(__pa(_brk_start), __pa(_brk_end), "BRK");

/* Mark brk area as locked down and no longer taking any new allocations */
_brk_start = 0;
}

static void __init reserve_initrd(void)
{
u64 ramdisk_image = boot_params.hdr.ramdisk_image;
Expand Down

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