From: David Herrmann <dh.herrmann@gmail.com>
Date: Sat, 27 Jul 2013 11:37:59 +0000 (+0200)
Subject: drm/ttm: replace drm_mm_pre_get() by direct alloc
X-Git-Tag: v3.12-rc1~136^2~133
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=78af329a85bee7dd4671c67abfecde37b0057b10;p=pandora-kernel.git

drm/ttm: replace drm_mm_pre_get() by direct alloc

Instead of calling drm_mm_pre_get() in a row, we now preallocate the node
and then use the atomic insertion functions. This has the exact same
semantics and there is no reason to use the racy pre-allocations.

Note that ttm_bo_man_get_node() does not run in atomic context. Nouveau
already uses GFP_KERNEL alloc in nouveau/nouveau_ttm.c in
nouveau_gart_manager_new(). So we can do the same in
ttm_bo_man_get_node().

Signed-off-by: David Herrmann <dh.herrmann@gmail.com>
Reviewed-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Signed-off-by: Dave Airlie <airlied@redhat.com>
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