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fe115628d5
We only need struct_mutex within pwrite for a brief window where we need to serialise with rendering and control our cache domains. Elsewhere we can rely on the backing storage being pinned, and forgive userspace any races against us. Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk> Reviewed-by: Joonas Lahtinen <joonas.lahtinen@linux.intel.com> Link: http://patchwork.freedesktop.org/patch/msgid/20161028125858.23563-17-chris@chris-wilson.co.uk |
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