[27/59] drm/i915: fix hibernation since i915 self-reclaim fixes

[Greg KH]

2.6.32-stable review patch.  If anyone has any objections, please let us know.

------------------

From: Linus Torvalds <torvalds@xxxxxxxxxxxxxxxxxxxx>

commit 985b823b919273fe1327d56d2196b4f92e5d0fae upstream.

Since commit 4bdadb9785696439c6e2b3efe34aa76df1149c83 ("drm/i915:
Selectively enable self-reclaim"), we've been passing GFP_MOVABLE to the
i915 page allocator where we weren't before due to some over-eager
removal of the page mapping gfp_flags games the code used to play.

This caused hibernate on Intel hardware to result in a lot of memory
corruptions on resume.  See for example

  http://bugzilla.kernel.org/show_bug.cgi?id=13811

Reported-by: Evengi Golov (in bugzilla)
Signed-off-by: Dave Airlie <airlied@xxxxxxxxxx>
Tested-by: M. Vefa Bicakci <bicave@xxxxxxxxxxxxxxx>
Cc: Chris Wilson <chris@xxxxxxxxxxxxxxxxxx>
Cc: KOSAKI Motohiro <kosaki.motohiro@xxxxxxxxxxxxxx>
Cc: Hugh Dickins <hugh.dickins@xxxxxxxxxxxxx>
Signed-off-by: Linus Torvalds <torvalds@xxxxxxxxxxxxxxxxxxxx>
Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxx>

---
 drivers/gpu/drm/i915/i915_gem.c |    2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

--- a/drivers/gpu/drm/i915/i915_gem.c
+++ b/drivers/gpu/drm/i915/i915_gem.c
@@ -2262,7 +2262,7 @@ i915_gem_object_get_pages(struct drm_gem
 	mapping = inode->i_mapping;
 	for (i = 0; i < page_count; i++) {
 		page = read_cache_page_gfp(mapping, i,
-					   mapping_gfp_mask (mapping) |
+					   GFP_HIGHUSER |
 					   __GFP_COLD |
 					   gfpmask);
 		if (IS_ERR(page))


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