diff options
author | Linus Torvalds <torvalds@linux-foundation.org> | 2011-03-22 13:41:36 -0400 |
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committer | Linus Torvalds <torvalds@linux-foundation.org> | 2011-03-22 13:41:36 -0400 |
commit | 73d5a8675f32b8e22e11773b314324316f920192 (patch) | |
tree | d353161d8d162afd6fa90267c96a902a0a9e85be /arch/x86/mm | |
parent | e77277dfe28baed73b6fd7c66c3fb44580a3dac1 (diff) | |
parent | d8aa5ec3382e6a545b8f25178d1e0992d4927f19 (diff) |
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/mm')
-rw-r--r-- | arch/x86/mm/init_64.c | 11 |
1 files changed, 6 insertions, 5 deletions
diff --git a/arch/x86/mm/init_64.c b/arch/x86/mm/init_64.c index 0aa34669ed3f..2362b646178e 100644 --- a/arch/x86/mm/init_64.c +++ b/arch/x86/mm/init_64.c | |||
@@ -52,6 +52,7 @@ | |||
52 | #include <asm/cacheflush.h> | 52 | #include <asm/cacheflush.h> |
53 | #include <asm/init.h> | 53 | #include <asm/init.h> |
54 | #include <asm/uv/uv.h> | 54 | #include <asm/uv/uv.h> |
55 | #include <asm/setup.h> | ||
55 | 56 | ||
56 | static int __init parse_direct_gbpages_off(char *arg) | 57 | static int __init parse_direct_gbpages_off(char *arg) |
57 | { | 58 | { |
@@ -294,18 +295,18 @@ void __init init_extra_mapping_uc(unsigned long phys, unsigned long size) | |||
294 | * to the compile time generated pmds. This results in invalid pmds up | 295 | * to the compile time generated pmds. This results in invalid pmds up |
295 | * to the point where we hit the physaddr 0 mapping. | 296 | * to the point where we hit the physaddr 0 mapping. |
296 | * | 297 | * |
297 | * We limit the mappings to the region from _text to _end. _end is | 298 | * We limit the mappings to the region from _text to _brk_end. _brk_end |
298 | * rounded up to the 2MB boundary. This catches the invalid pmds as | 299 | * is rounded up to the 2MB boundary. This catches the invalid pmds as |
299 | * well, as they are located before _text: | 300 | * well, as they are located before _text: |
300 | */ | 301 | */ |
301 | void __init cleanup_highmap(void) | 302 | void __init cleanup_highmap(void) |
302 | { | 303 | { |
303 | unsigned long vaddr = __START_KERNEL_map; | 304 | unsigned long vaddr = __START_KERNEL_map; |
304 | unsigned long end = roundup((unsigned long)_end, PMD_SIZE) - 1; | 305 | unsigned long vaddr_end = __START_KERNEL_map + (max_pfn_mapped << PAGE_SHIFT); |
306 | unsigned long end = roundup((unsigned long)_brk_end, PMD_SIZE) - 1; | ||
305 | pmd_t *pmd = level2_kernel_pgt; | 307 | pmd_t *pmd = level2_kernel_pgt; |
306 | pmd_t *last_pmd = pmd + PTRS_PER_PMD; | ||
307 | 308 | ||
308 | for (; pmd < last_pmd; pmd++, vaddr += PMD_SIZE) { | 309 | for (; vaddr + PMD_SIZE - 1 < vaddr_end; pmd++, vaddr += PMD_SIZE) { |
309 | if (pmd_none(*pmd)) | 310 | if (pmd_none(*pmd)) |
310 | continue; | 311 | continue; |
311 | if (vaddr < (unsigned long) _text || vaddr > end) | 312 | if (vaddr < (unsigned long) _text || vaddr > end) |