@@ -115,7 +115,7 @@ int ivtv_udma_setup(struct ivtv *itv, unsigned long ivtv_dest_addr,
/* Pin user pages for DMA Xfer */
err = pin_user_pages_unlocked(user_dma.uaddr, user_dma.page_count,
- dma->map, FOLL_FORCE);
+ dma->map, 0);
if (user_dma.page_count != err) {
IVTV_DEBUG_WARN("failed to map user pages, returned %d instead of %d\n",
@@ -63,12 +63,11 @@ static int ivtv_yuv_prep_user_dma(struct ivtv *itv, struct ivtv_user_dma *dma,
/* Pin user pages for DMA Xfer */
y_pages = pin_user_pages_unlocked(y_dma.uaddr,
- y_dma.page_count, &dma->map[0], FOLL_FORCE);
+ y_dma.page_count, &dma->map[0], 0);
uv_pages = 0; /* silence gcc. value is set and consumed only if: */
if (y_pages == y_dma.page_count) {
uv_pages = pin_user_pages_unlocked(uv_dma.uaddr,
- uv_dma.page_count, &dma->map[y_pages],
- FOLL_FORCE);
+ uv_dma.page_count, &dma->map[y_pages], 0);
}
if (y_pages != y_dma.page_count || uv_pages != uv_dma.page_count) {
FOLL_FORCE is really only for debugger access. R/O pinning a page is supposed to fail if the VMA misses proper access permissions (no VM_READ). Let's just remove FOLL_FORCE usage here; there would have to be a pretty good reason to allow arbitrary drivers to R/O pin pages in a PROT_NONE VMA. Most probably, FOLL_FORCE usage is just some legacy leftover. Cc: Andy Walls <awalls@md.metrocast.net> Cc: Mauro Carvalho Chehab <mchehab@kernel.org> Signed-off-by: David Hildenbrand <david@redhat.com> --- drivers/media/pci/ivtv/ivtv-udma.c | 2 +- drivers/media/pci/ivtv/ivtv-yuv.c | 5 ++--- 2 files changed, 3 insertions(+), 4 deletions(-)