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authorEric Anholt <eric@anholt.net>2009-04-07 16:01:22 -0700
committerEric Anholt <eric@anholt.net>2009-04-08 10:50:56 -0700
commite5e9ecde63ba365b510df0f4a9cb3b048a0ad785 (patch)
tree2ef878606a0483e7cac427ebb40dabd1c2346ba7
parent2bc43b5cf5158a26fa1328234795abed2dff5275 (diff)
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 <eric@anholt.net>
-rw-r--r--drivers/gpu/drm/i915/i915_gem.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/drivers/gpu/drm/i915/i915_gem.c b/drivers/gpu/drm/i915/i915_gem.c
index 6f7d0e27036..3a1189d94a9 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;