Chris Wilson aa824d5b72 drm/i915: Invalidate the relocation presumed_offsets along the slow path ... commit 262b6d363f upstream. In the slow path, we are forced to copy the relocations prior to acquiring the struct mutex in order to handle pagefaults. We forgo copying the new offsets back into the relocation entries in order to prevent a recursive locking bug should we trigger a pagefault whilst holding the mutex for the reservations of the execbuffer. Therefore, we need to reset the presumed_offsets just in case the objects are rebound back into their old locations after relocating for this exexbuffer - if that were to happen we would assume the relocations were valid and leave the actual pointers to the kernels dangling, instant hang. Fixes regression from commit bcf50e2775 Author: Chris Wilson <chris@chris-wilson.co.uk> Date: Sun Nov 21 22:07:12 2010 +0000 drm/i915: Handle pagefaults in execbuffer user relocations Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=55984 Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk> Cc: Daniel Vetter <daniel.vetter@fwll.ch> Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>		2013-01-27 20:47:42 -08:00
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drm	drm/i915: Invalidate the relocation presumed_offsets along the slow path	2013-01-27 20:47:42 -08:00
stub	i915: select VIDEO_OUTPUT_CONTROL for ACPI_VIDEO	2011-04-13 09:10:25 +10:00
vga	drivers/gpu/vga/vgaarb.c: add missing kfree	2011-11-22 20:21:10 +00:00
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