diff options
| author |   Tejun Heo <tj@kernel.org> | 2009-02-24 11:57:21 +0900 |
|---|---|---|
| committer | Tejun Heo <tj@kernel.org> | 2009-02-24 11:57:21 +0900 |
| commit | 458a3e644c3327be529393982e24277eda8f1ac7 (patch) | |
| tree | f39bab1d54eeb222565c8d9086f2e4f645d97f58 /arch/x86/mm/init_32.c | |
| parent | vmalloc: add @align to vm_area_register_early() (diff) | |
| download | linux-dev-458a3e644c3327be529393982e24277eda8f1ac7.tar.xz linux-dev-458a3e644c3327be529393982e24277eda8f1ac7.zip | |
x86: update populate_extra_pte() and add populate_extra_pmd()
Impact: minor change to populate_extra_pte() and addition of pmd flavor
Update populate_extra_pte() to return pointer to the pte_t for the
specified address and add populate_extra_pmd() which only populates
till the pmd and returns pointer to the pmd entry for the address.
For 64bit, pud/pmd/pte fill functions are separated out from
set_pte_vaddr[_pud]() and used for set_pte_vaddr[_pud]() and
populate_extra_{pte|pmd}().
Signed-off-by: Tejun Heo <tj@kernel.org>
Diffstat (limited to 'arch/x86/mm/init_32.c')
| -rw-r--r-- | arch/x86/mm/init_32.c | 13 |
1 files changed, 10 insertions, 3 deletions
diff --git a/arch/x86/mm/init_32.c b/arch/x86/mm/init_32.c index 8b1a0ef7f874..84a26883ab44 100644 --- a/arch/x86/mm/init_32.c +++ b/arch/x86/mm/init_32.c @@ -137,14 +137,21 @@ static pte_t * __init one_page_table_init(pmd_t *pmd) return pte_offset_kernel(pmd, 0); } -void __init populate_extra_pte(unsigned long vaddr) +pmd_t * __init populate_extra_pmd(unsigned long vaddr) { int pgd_idx = pgd_index(vaddr); int pmd_idx = pmd_index(vaddr); + + return one_md_table_init(swapper_pg_dir + pgd_idx) + pmd_idx; +} + +pte_t * __init populate_extra_pte(unsigned long vaddr) +{ + int pte_idx = pte_index(vaddr); pmd_t *pmd; - pmd = one_md_table_init(swapper_pg_dir + pgd_idx); - one_page_table_init(pmd + pmd_idx); + pmd = populate_extra_pmd(vaddr); + return one_page_table_init(pmd) + pte_idx; } static pte_t *__init page_table_kmap_check(pte_t *pte, pmd_t *pmd, |