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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>
hifive-unleashed-5.1
Eric Anholt 2009-04-07 16:01:22 -07:00
parent 2bc43b5cf5
commit e5e9ecde63
1 changed files with 1 additions and 1 deletions
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2
drivers/gpu/drm/i915/i915_gem.c
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@ -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;