VM: add common helper function to create the page tables
This logic was duplicated four times, for no good reason.
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
diff --git a/fs/exec.c b/fs/exec.c
index 1f8a9fd..22533cc 100644
--- a/fs/exec.c
+++ b/fs/exec.c
@@ -306,9 +306,6 @@
struct page *page, unsigned long address)
{
struct mm_struct *mm = vma->vm_mm;
- pgd_t * pgd;
- pud_t * pud;
- pmd_t * pmd;
pte_t * pte;
spinlock_t *ptl;
@@ -316,14 +313,7 @@
goto out;
flush_dcache_page(page);
- pgd = pgd_offset(mm, address);
- pud = pud_alloc(mm, pgd, address);
- if (!pud)
- goto out;
- pmd = pmd_alloc(mm, pud, address);
- if (!pmd)
- goto out;
- pte = pte_alloc_map_lock(mm, pmd, address, &ptl);
+ pte = get_locked_pte(mm, address, &ptl);
if (!pte)
goto out;
if (!pte_none(*pte)) {
