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| author | Linus Torvalds <torvalds@linux-foundation.org> | 2010-02-28 10:38:45 -0800 |
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2010-02-28 10:38:45 -0800 |
| commit | 46bbffad54bd48bb809f2691c1970a79a588976b (patch) | |
| tree | 21779a574f118b1cba5d6832bc0a0fa3bee97075 /arch/x86/mm/init_32.c | |
| parent | 85fe20bfd415af0a2e93bd1166533d4a6eb591ea (diff) | |
| parent | c1fd1b43831fa20c91cdd461342af8edf2e87c2f (diff) | |
Merge branch 'x86-mm-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip
* 'x86-mm-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip:
x86, mm: Unify kernel_physical_mapping_init() API
x86, mm: Allow highmem user page tables to be disabled at boot time
x86: Do not reserve brk for DMI if it's not going to be used
x86: Convert tlbstate_lock to raw_spinlock
x86: Use the generic page_is_ram()
x86: Remove BIOS data range from e820
Move page_is_ram() declaration to mm.h
Generic page_is_ram: use __weak
resources: introduce generic page_is_ram()
Diffstat (limited to 'arch/x86/mm/init_32.c')
| -rw-r--r-- | arch/x86/mm/init_32.c | 8 |
1 files changed, 5 insertions, 3 deletions
diff --git a/arch/x86/mm/init_32.c b/arch/x86/mm/init_32.c index 9a0c258a86b..2226f2c70ea 100644 --- a/arch/x86/mm/init_32.c +++ b/arch/x86/mm/init_32.c @@ -241,6 +241,7 @@ kernel_physical_mapping_init(unsigned long start, unsigned long page_size_mask) { int use_pse = page_size_mask == (1<<PG_LEVEL_2M); + unsigned long last_map_addr = end; unsigned long start_pfn, end_pfn; pgd_t *pgd_base = swapper_pg_dir; int pgd_idx, pmd_idx, pte_ofs; @@ -341,9 +342,10 @@ repeat: prot = PAGE_KERNEL_EXEC; pages_4k++; - if (mapping_iter == 1) + if (mapping_iter == 1) { set_pte(pte, pfn_pte(pfn, init_prot)); - else + last_map_addr = (pfn << PAGE_SHIFT) + PAGE_SIZE; + } else set_pte(pte, pfn_pte(pfn, prot)); } } @@ -368,7 +370,7 @@ repeat: mapping_iter = 2; goto repeat; } - return 0; + return last_map_addr; } pte_t *kmap_pte; |