korg/linux
0
0
Fork 0
mirror of https://mirrors.bfsu.edu.cn/git/linux.git synced 2024-11-15 16:24:13 +08:00
Code Issues Packages Projects Releases Wiki Activity

x86: move brk initialization out of #ifdef CONFIG_BLK_DEV_INITRD

Browse Source 
Impact: build fix

The brk initialization functions were incorrectly located inside
an #ifdef CONFIG_VLK_DEV_INITRD block, causing the obvious build failure in
minimal configurations.

Signed-off-by: H. Peter Anvin <hpa@zytor.com>
Cc: Jeremy Fitzhardinge <jeremy.fitzhardinge@citrix.com>
This commit is contained in:
H. Peter Anvin 2009-03-14 17:19:51 -07:00
parent 93dbda7cbc
commit 5368a2be34
1 changed files with 29 additions and 28 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

57
arch/x86/kernel/setup.c
View File

@ -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
@ -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;