The patch titled
Subject: drivers/gpu/drm/via: convert put_page() to put_user_page*()
has been added to the -mm tree. Its filename is
drivers-gpu-drm-via-convert-put_page-to-put_user_page.patch
This patch should soon appear at
http://ozlabs.org/~akpm/mmots/broken-out/drivers-gpu-drm-via-convert-put_page-to-put_user_page.patch
and later at
http://ozlabs.org/~akpm/mmotm/broken-out/drivers-gpu-drm-via-convert-put_page-to-put_user_page.patch
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------------------------------------------------------
From: John Hubbard <jhubbard@xxxxxxxxxx>
Subject: drivers/gpu/drm/via: convert put_page() to put_user_page*()
For pages that were retained via get_user_pages*(), release those pages
via the new put_user_page*() routines, instead of via put_page() or
release_pages().
This is part a tree-wide conversion, as described in fc1d8e7cca2d ("mm:
introduce put_user_page*(), placeholder versions").
Also reverse the order of a comparison, in order to placate checkpatch.pl.
Link: http://lkml.kernel.org/r/20190724044537.10458-3-jhubbard@xxxxxxxxxx
Cc: David Airlie <airlied@xxxxxxxx>
Cc: Daniel Vetter <daniel@xxxxxxxx>
Signed-off-by: John Hubbard <jhubbard@xxxxxxxxxx>
Signed-off-by: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx>
---
drivers/gpu/drm/via/via_dmablit.c | 10 ++--------
1 file changed, 2 insertions(+), 8 deletions(-)
--- a/drivers/gpu/drm/via/via_dmablit.c~drivers-gpu-drm-via-convert-put_page-to-put_user_page
+++ a/drivers/gpu/drm/via/via_dmablit.c
@@ -171,7 +171,6 @@ via_map_blit_for_device(struct pci_dev *
static void
via_free_sg_info(struct pci_dev *pdev, drm_via_sg_info_t *vsg)
{
- struct page *page;
int i;
switch (vsg->state) {
@@ -186,13 +185,8 @@ via_free_sg_info(struct pci_dev *pdev, d
kfree(vsg->desc_pages);
/* fall through */
case dr_via_pages_locked:
- for (i = 0; i < vsg->num_pages; ++i) {
- if (NULL != (page = vsg->pages[i])) {
- if (!PageReserved(page) && (DMA_FROM_DEVICE == vsg->direction))
- SetPageDirty(page);
- put_page(page);
- }
- }
+ put_user_pages_dirty_lock(vsg->pages, vsg->num_pages,
+ (vsg->direction == DMA_FROM_DEVICE));
/* fall through */
case dr_via_pages_alloc:
vfree(vsg->pages);
_
Patches currently in -mm which might be from jhubbard@xxxxxxxxxx are
mm-gup-add-make_dirty-arg-to-put_user_pages_dirty_lock.patch
drivers-gpu-drm-via-convert-put_page-to-put_user_page.patch
net-xdp-convert-put_page-to-put_user_page.patch
