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Diffstat (limited to 'arch/ppc/kernel/dma-mapping.c')
-rw-r--r--arch/ppc/kernel/dma-mapping.c10
1 files changed, 3 insertions, 7 deletions
diff --git a/arch/ppc/kernel/dma-mapping.c b/arch/ppc/kernel/dma-mapping.c
index 8edee806dae7..685fd0defe23 100644
--- a/arch/ppc/kernel/dma-mapping.c
+++ b/arch/ppc/kernel/dma-mapping.c
@@ -115,7 +115,7 @@ static struct vm_region consistent_head = {
115}; 115};
116 116
117static struct vm_region * 117static struct vm_region *
118vm_region_alloc(struct vm_region *head, size_t size, int gfp) 118vm_region_alloc(struct vm_region *head, size_t size, gfp_t gfp)
119{ 119{
120 unsigned long addr = head->vm_start, end = head->vm_end - size; 120 unsigned long addr = head->vm_start, end = head->vm_end - size;
121 unsigned long flags; 121 unsigned long flags;
@@ -173,7 +173,7 @@ static struct vm_region *vm_region_find(struct vm_region *head, unsigned long ad
173 * virtual and bus address for that space. 173 * virtual and bus address for that space.
174 */ 174 */
175void * 175void *
176__dma_alloc_coherent(size_t size, dma_addr_t *handle, int gfp) 176__dma_alloc_coherent(size_t size, dma_addr_t *handle, gfp_t gfp)
177{ 177{
178 struct page *page; 178 struct page *page;
179 struct vm_region *c; 179 struct vm_region *c;
@@ -335,8 +335,6 @@ static int __init dma_alloc_init(void)
335 pte_t *pte; 335 pte_t *pte;
336 int ret = 0; 336 int ret = 0;
337 337
338 spin_lock(&init_mm.page_table_lock);
339
340 do { 338 do {
341 pgd = pgd_offset(&init_mm, CONSISTENT_BASE); 339 pgd = pgd_offset(&init_mm, CONSISTENT_BASE);
342 pmd = pmd_alloc(&init_mm, pgd, CONSISTENT_BASE); 340 pmd = pmd_alloc(&init_mm, pgd, CONSISTENT_BASE);
@@ -347,7 +345,7 @@ static int __init dma_alloc_init(void)
347 } 345 }
348 WARN_ON(!pmd_none(*pmd)); 346 WARN_ON(!pmd_none(*pmd));
349 347
350 pte = pte_alloc_kernel(&init_mm, pmd, CONSISTENT_BASE); 348 pte = pte_alloc_kernel(pmd, CONSISTENT_BASE);
351 if (!pte) { 349 if (!pte) {
352 printk(KERN_ERR "%s: no pte tables\n", __func__); 350 printk(KERN_ERR "%s: no pte tables\n", __func__);
353 ret = -ENOMEM; 351 ret = -ENOMEM;
@@ -357,8 +355,6 @@ static int __init dma_alloc_init(void)
357 consistent_pte = pte; 355 consistent_pte = pte;
358 } while (0); 356 } while (0);
359 357
360 spin_unlock(&init_mm.page_table_lock);
361
362 return ret; 358 return ret;
363} 359}
364 360