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| author | Linus Torvalds <torvalds@g5.osdl.org> | 2005-11-29 14:03:14 -0800 |
|---|---|---|
| committer | Linus Torvalds <torvalds@g5.osdl.org> | 2005-11-29 14:03:14 -0800 |
| commit | c9cfcddfd65735437a4cb8563d6b66a6da8a5ed6 (patch) | |
| tree | 618cdf37baafe8b283bcc9923d9dde89d6428fb5 /mm/fremap.c | |
| parent | 4168f7a31801bba6acc18662978d24ec850bbbd0 (diff) | |
| download | lwn-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 'mm/fremap.c')
| -rw-r--r-- | mm/fremap.c | 24 |
1 files changed, 2 insertions, 22 deletions
diff --git a/mm/fremap.c b/mm/fremap.c index f851775e09c2..9f381e58bf44 100644 --- a/mm/fremap.c +++ b/mm/fremap.c @@ -55,20 +55,10 @@ int install_page(struct mm_struct *mm, struct vm_area_struct *vma, pgoff_t size; int err = -ENOMEM; pte_t *pte; - pmd_t *pmd; - pud_t *pud; - pgd_t *pgd; pte_t pte_val; spinlock_t *ptl; - pgd = pgd_offset(mm, addr); - pud = pud_alloc(mm, pgd, addr); - if (!pud) - goto out; - pmd = pmd_alloc(mm, pud, addr); - if (!pmd) - goto out; - pte = pte_alloc_map_lock(mm, pmd, addr, &ptl); + pte = get_locked_pte(mm, addr, &ptl); if (!pte) goto out; @@ -110,20 +100,10 @@ int install_file_pte(struct mm_struct *mm, struct vm_area_struct *vma, { int err = -ENOMEM; pte_t *pte; - pmd_t *pmd; - pud_t *pud; - pgd_t *pgd; pte_t pte_val; spinlock_t *ptl; - pgd = pgd_offset(mm, addr); - pud = pud_alloc(mm, pgd, addr); - if (!pud) - goto out; - pmd = pmd_alloc(mm, pud, addr); - if (!pmd) - goto out; - pte = pte_alloc_map_lock(mm, pmd, addr, &ptl); + pte = get_locked_pte(mm, addr, &ptl); if (!pte) goto out; |