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authorLinus Torvalds <torvalds@g5.osdl.org>2005-11-29 14:03:14 -0800
committerLinus Torvalds <torvalds@g5.osdl.org>2005-11-29 14:03:14 -0800
commitc9cfcddfd65735437a4cb8563d6b66a6da8a5ed6 (patch)
tree618cdf37baafe8b283bcc9923d9dde89d6428fb5 /fs/exec.c
parent4168f7a31801bba6acc18662978d24ec850bbbd0 (diff)
downloadlwn-c9cfcddfd65735437a4cb8563d6b66a6da8a5ed6.tar.gz
lwn-c9cfcddfd65735437a4cb8563d6b66a6da8a5ed6.zip
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>
Diffstat (limited to 'fs/exec.c')
-rw-r--r--fs/exec.c12
1 files changed, 1 insertions, 11 deletions
diff --git a/fs/exec.c b/fs/exec.c
index 1f8a9fd2c9ed..22533cce0611 100644
--- a/fs/exec.c
+++ b/fs/exec.c
@@ -306,9 +306,6 @@ void install_arg_page(struct vm_area_struct *vma,
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 @@ void install_arg_page(struct vm_area_struct *vma,
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)) {