| From | Greg Kroah-Hartman <> | Subject | [PATCH 4.19 32/84] drm/ttm: fix start page for huge page check in ttm_put_pages() | Date | Fri, 17 Jan 2020 00:18:06 +0100 |
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From: Christian König <christian.koenig@amd.com>
commit ac1e516d5a4c56bf0cb4a3dfc0672f689131cfd4 upstream.
The first page entry is always the same with itself.
Signed-off-by: Christian König <christian.koenig@amd.com> Reviewed-by: Michel Dänzer <michel.daenzer@amd.com> Reviewed-by: Junwei Zhang <Jerry.Zhang@amd.com> Reviewed-by: Huang Rui <ray.huang@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com> Cc: Zubin Mithra <zsm@chromium.org> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
--- drivers/gpu/drm/ttm/ttm_page_alloc.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-)
--- a/drivers/gpu/drm/ttm/ttm_page_alloc.c +++ b/drivers/gpu/drm/ttm/ttm_page_alloc.c @@ -732,7 +732,7 @@ static void ttm_put_pages(struct page ** #ifdef CONFIG_TRANSPARENT_HUGEPAGE if (!(flags & TTM_PAGE_FLAG_DMA32) && (npages - i) >= HPAGE_PMD_NR) { - for (j = 0; j < HPAGE_PMD_NR; ++j) + for (j = 1; j < HPAGE_PMD_NR; ++j) if (p++ != pages[i + j]) break; @@ -767,7 +767,7 @@ static void ttm_put_pages(struct page ** if (!p) break; - for (j = 0; j < HPAGE_PMD_NR; ++j) + for (j = 1; j < HPAGE_PMD_NR; ++j) if (p++ != pages[i + j]) break;
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