When we detect consecutive allocation of pages swap them to avoid accidentally freeing them as huge page.
Signed-off-by: Christian König <[email protected]> --- drivers/gpu/drm/ttm/ttm_page_alloc.c | 8 ++++++++ 1 file changed, 8 insertions(+) diff --git a/drivers/gpu/drm/ttm/ttm_page_alloc.c b/drivers/gpu/drm/ttm/ttm_page_alloc.c index c82d94cbbabc..60401350a01a 100644 --- a/drivers/gpu/drm/ttm/ttm_page_alloc.c +++ b/drivers/gpu/drm/ttm/ttm_page_alloc.c @@ -921,6 +921,14 @@ static int ttm_get_pages(struct page **pages, unsigned npages, int flags, return -ENOMEM; } + /* Swap the pages if we detect consecutive order */ + if (i && pages[i - 1] == p - 1) { + struct page *tmp = p; + + p = pages[i - 1]; + pages[i - 1] = tmp; + } + pages[i++] = p; --npages; } -- 2.11.0 _______________________________________________ amd-gfx mailing list [email protected] https://lists.freedesktop.org/mailman/listinfo/amd-gfx
