[Intel-gfx] [PATCH 49/70] drm/i915: Do not zero initialise page tables

[Chris Wilson]

After we successfully allocate them, we will fill them with their
initial contents (either the chain of page tables, or a pointer to the
scratch page).

Regression from
commit 06fda602dbca9c59d87db7da71192e4b54c9f5ff
Author: Ben Widawsky <benjamin.widawsky at intel.com>
Date:   Tue Feb 24 16:22:36 2015 +0000

    drm/i915: Create page table allocators

Signed-off-by: Chris Wilson <chris at chris-wilson.co.uk>
Cc: Michel Thierry <michel.thierry at intel.com> (v3+)
Cc: Mika Kuoppala <mika.kuoppala at intel.com>
Cc: Daniel Vetter <daniel.vetter at ffwll.ch>
---
 drivers/gpu/drm/i915/i915_gem_gtt.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/gpu/drm/i915/i915_gem_gtt.c b/drivers/gpu/drm/i915/i915_gem_gtt.c
index 85077beb9338..a80573105a61 100644
--- a/drivers/gpu/drm/i915/i915_gem_gtt.c
+++ b/drivers/gpu/drm/i915/i915_gem_gtt.c
@@ -429,7 +429,7 @@ static struct i915_page_directory_entry *alloc_pd_single(void)
 	if (!pd)
 		return ERR_PTR(-ENOMEM);
 
-	pd->page = alloc_page(GFP_KERNEL | __GFP_ZERO);
+	pd->page = alloc_page(GFP_KERNEL);
 	if (!pd->page) {
 		kfree(pd);
 		return ERR_PTR(-ENOMEM);
-- 
2.1.4