[PATCH] mm: init_mm without ptlock

[linux-2.6.git] / arch / ppc / kernel / dma-mapping.c

diff --git a/arch/ppc/kernel/dma-mapping.c b/arch/ppc/kernel/dma-mapping.c
index 0f710d2baec60923e0eb84daef8b5a00da5f2510..685fd0defe23484772bf89e99b772bd9cbd65486 100644 (file)
--- a/arch/ppc/kernel/dma-mapping.c
+++ b/arch/ppc/kernel/dma-mapping.c
@@ -335,8 +335,6 @@ static int __init dma_alloc_init(void)
        pte_t *pte;
        int ret = 0;
 
-       spin_lock(&init_mm.page_table_lock);
-
        do {
                pgd = pgd_offset(&init_mm, CONSISTENT_BASE);
                pmd = pmd_alloc(&init_mm, pgd, CONSISTENT_BASE);
@@ -347,7 +345,7 @@ static int __init dma_alloc_init(void)
                }
                WARN_ON(!pmd_none(*pmd));
 
-               pte = pte_alloc_kernel(&init_mm, pmd, CONSISTENT_BASE);
+               pte = pte_alloc_kernel(pmd, CONSISTENT_BASE);
                if (!pte) {
                        printk(KERN_ERR "%s: no pte tables\n", __func__);
                        ret = -ENOMEM;
@@ -357,8 +355,6 @@ static int __init dma_alloc_init(void)
                consistent_pte = pte;
        } while (0);
 
-       spin_unlock(&init_mm.page_table_lock);
-
        return ret;
 }