From e1a58a5421c6a9f4ab74810d6ecbbdb6b1b2e2c7 Mon Sep 17 00:00:00 2001 From: Al Viro Date: Fri, 22 Sep 2017 18:21:11 -0400 Subject: [PATCH] atomisp: use get_user_pages_fast() Signed-off-by: Al Viro --- drivers/staging/media/atomisp/pci/atomisp2/hmm/hmm_bo.c | 6 ++---- 1 file changed, 2 insertions(+), 4 deletions(-) diff --git a/drivers/staging/media/atomisp/pci/atomisp2/hmm/hmm_bo.c b/drivers/staging/media/atomisp/pci/atomisp2/hmm/hmm_bo.c index 11162f595fc7..2052f8d2f137 100644 --- a/drivers/staging/media/atomisp/pci/atomisp2/hmm/hmm_bo.c +++ b/drivers/staging/media/atomisp/pci/atomisp2/hmm/hmm_bo.c @@ -1029,10 +1029,8 @@ static int alloc_user_pages(struct hmm_buffer_object *bo, } else { /*Handle frame buffer allocated in user space*/ mutex_unlock(&bo->mutex); - down_read(¤t->mm->mmap_sem); - page_nr = get_user_pages((unsigned long)userptr, - (int)(bo->pgnr), 1, pages, NULL); - up_read(¤t->mm->mmap_sem); + page_nr = get_user_pages_fast((unsigned long)userptr, + (int)(bo->pgnr), 1, pages); mutex_lock(&bo->mutex); bo->mem_type = HMM_BO_MEM_TYPE_USER; } -- 2.45.2