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author | Linus Torvalds <torvalds@linux-foundation.org> | 2011-03-22 10:41:36 -0700 |
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committer | Linus Torvalds <torvalds@linux-foundation.org> | 2011-03-22 10:41:36 -0700 |
commit | 73d5a8675f32b8e22e11773b314324316f920192 (patch) | |
tree | d353161d8d162afd6fa90267c96a902a0a9e85be /arch/x86/kernel/setup.c | |
parent | e77277dfe28baed73b6fd7c66c3fb44580a3dac1 (diff) | |
parent | d8aa5ec3382e6a545b8f25178d1e0992d4927f19 (diff) | |
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Merge branch 'x86-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip
* 'x86-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip:
xen: update mask_rw_pte after kernel page tables init changes
xen: set max_pfn_mapped to the last pfn mapped
x86: Cleanup highmap after brk is concluded
Fix up trivial onflict (added header file includes) in
arch/x86/mm/init_64.c
Diffstat (limited to 'arch/x86/kernel/setup.c')
-rw-r--r-- | arch/x86/kernel/setup.c | 25 |
1 files changed, 3 insertions, 22 deletions
diff --git a/arch/x86/kernel/setup.c b/arch/x86/kernel/setup.c index 9d43b28..32bd87c 100644 --- a/arch/x86/kernel/setup.c +++ b/arch/x86/kernel/setup.c @@ -294,30 +294,11 @@ static void __init init_gbpages(void) else direct_gbpages = 0; } - -static void __init cleanup_highmap_brk_end(void) -{ - pud_t *pud; - pmd_t *pmd; - - mmu_cr4_features = read_cr4(); - - /* - * _brk_end cannot change anymore, but it and _end may be - * located on different 2M pages. cleanup_highmap(), however, - * can only consider _end when it runs, so destroy any - * mappings beyond _brk_end here. - */ - pud = pud_offset(pgd_offset_k(_brk_end), _brk_end); - pmd = pmd_offset(pud, _brk_end - 1); - while (++pmd <= pmd_offset(pud, (unsigned long)_end - 1)) - pmd_clear(pmd); -} #else static inline void init_gbpages(void) { } -static inline void cleanup_highmap_brk_end(void) +static void __init cleanup_highmap(void) { } #endif @@ -330,8 +311,6 @@ static void __init reserve_brk(void) /* Mark brk area as locked down and no longer taking any new allocations */ _brk_start = 0; - - cleanup_highmap_brk_end(); } #ifdef CONFIG_BLK_DEV_INITRD @@ -950,6 +929,8 @@ void __init setup_arch(char **cmdline_p) */ reserve_brk(); + cleanup_highmap(); + memblock.current_limit = get_max_mapped(); memblock_x86_fill(); |