drm/omap: EBUSY status handling in omap_gem_fault()

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Subsequent threads returning EBUSY from vm_insert_pfn() was not
handled correctly. As a result concurrent access from new threads
to mmapped data caused SIGBUS.

See e79e0fe380 ("drm/i915: EBUSY status
handling added to i915_gem_fault()").

Signed-off-by: Rob Clark <robdclark@gmail.com>
Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
Acked-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>

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Rob Clark 2013-10-20 12:07:42 -04:00 • committed by Tomi Valkeinen

parent be4f235c43

commit e1d4ee0f2b

1 changed files with 5 additions and 0 deletions

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drivers/gpu/drm/omapdrm/omap_gem.c

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