From e5e9ecde63ba365b510df0f4a9cb3b048a0ad785 Mon Sep 17 00:00:00 2001 From: Eric Anholt Date: Tue, 7 Apr 2009 16:01:22 -0700 Subject: [PATCH] drm/i915: Correctly set the write flag for get_user_pages in pread. Otherwise, the results of our read didn't show up when we were faulting in the page being read into (as happened with a testcase reading into a big stack area). Likely accounts for some conformance test failures. Signed-off-by: Eric Anholt --- drivers/gpu/drm/i915/i915_gem.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/gpu/drm/i915/i915_gem.c b/drivers/gpu/drm/i915/i915_gem.c index 6f7d0e27036f..3a1189d94a9a 100644 --- a/drivers/gpu/drm/i915/i915_gem.c +++ b/drivers/gpu/drm/i915/i915_gem.c @@ -287,7 +287,7 @@ i915_gem_shmem_pread_slow(struct drm_device *dev, struct drm_gem_object *obj, down_read(&mm->mmap_sem); pinned_pages = get_user_pages(current, mm, (uintptr_t)args->data_ptr, - num_pages, 0, 0, user_pages, NULL); + num_pages, 1, 0, user_pages, NULL); up_read(&mm->mmap_sem); if (pinned_pages < num_pages) { ret = -EFAULT; -- 2.30.2