Fedora kernel-2.6.17-1.2142_FC4 patched with stable patch-2.6.17.4-vs2.0.2-rc26.diff

[linux-2.6.git] / arch / arm26 / mm / memc.c

diff --git a/arch/arm26/mm/memc.c b/arch/arm26/mm/memc.c
index 8e8a2bb..34def63 100644 (file)
--- a/arch/arm26/mm/memc.c
+++ b/arch/arm26/mm/memc.c
@@ -78,12 +78,6 @@ pgd_t *get_pgd_slow(struct mm_struct *mm)
        if (!new_pgd)
                goto no_pgd;
 
-       /*
-        * This lock is here just to satisfy pmd_alloc and pte_lock
-         * FIXME: I bet we could avoid taking it pretty much altogether
-        */
-       spin_lock(&mm->page_table_lock);
-
        /*
         * On ARM, first page must always be allocated since it contains
         * the machine vectors.
@@ -92,7 +86,7 @@ pgd_t *get_pgd_slow(struct mm_struct *mm)
        if (!new_pmd)
                goto no_pmd;
 
-       new_pte = pte_alloc_kernel(mm, new_pmd, 0);
+       new_pte = pte_alloc_map(mm, new_pmd, 0);
        if (!new_pte)
                goto no_pte;
 
@@ -101,6 +95,7 @@ pgd_t *get_pgd_slow(struct mm_struct *mm)
        init_pte = pte_offset(init_pmd, 0);
 
        set_pte(new_pte, *init_pte);
+       pte_unmap(new_pte);
 
        /*
         * the page table entries are zeroed
@@ -112,23 +107,14 @@ pgd_t *get_pgd_slow(struct mm_struct *mm)
        memcpy(new_pgd + FIRST_KERNEL_PGD_NR, init_pgd + FIRST_KERNEL_PGD_NR,
                (PTRS_PER_PGD - FIRST_KERNEL_PGD_NR) * sizeof(pgd_t));
 
-       spin_unlock(&mm->page_table_lock);
-
        /* update MEMC tables */
        cpu_memc_update_all(new_pgd);
        return new_pgd;
 
 no_pte:
-       spin_unlock(&mm->page_table_lock);
        pmd_free(new_pmd);
-       free_pgd_slow(new_pgd);
-       return NULL;
-
 no_pmd:
-       spin_unlock(&mm->page_table_lock);
        free_pgd_slow(new_pgd);
-       return NULL;
-
 no_pgd:
        return NULL;
 }