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Subject[PATCH 04/26] drm: Convert via driver to use get_user_pages_fast()
Date
CC: David Airlie <airlied@linux.ie>
CC: dri-devel@lists.freedesktop.org
Signed-off-by: Jan Kara <jack@suse.cz>
---
drivers/gpu/drm/via/via_dmablit.c | 12 ++++--------
1 file changed, 4 insertions(+), 8 deletions(-)

diff --git a/drivers/gpu/drm/via/via_dmablit.c b/drivers/gpu/drm/via/via_dmablit.c
index 8b0f25904e6d..7e3766667d78 100644
--- a/drivers/gpu/drm/via/via_dmablit.c
+++ b/drivers/gpu/drm/via/via_dmablit.c
@@ -238,14 +238,10 @@ via_lock_all_dma_pages(drm_via_sg_info_t *vsg, drm_via_dmablit_t *xfer)
vsg->pages = vzalloc(sizeof(struct page *) * vsg->num_pages);
if (NULL == vsg->pages)
return -ENOMEM;
- down_read(&current->mm->mmap_sem);
- ret = get_user_pages(current, current->mm,
- (unsigned long)xfer->mem_addr,
- vsg->num_pages,
- (vsg->direction == DMA_FROM_DEVICE),
- 0, vsg->pages, NULL);
-
- up_read(&current->mm->mmap_sem);
+ ret = get_user_pages_fast((unsigned long)xfer->mem_addr,
+ vsg->num_pages,
+ (vsg->direction == DMA_FROM_DEVICE),
+ vsg->pages);
if (ret != vsg->num_pages) {
if (ret < 0)
return ret;
--
1.8.1.4


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