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authorChris Wilson <chris@chris-wilson.co.uk>2012-09-04 21:02:56 +0100
committerDaniel Vetter <daniel.vetter@ffwll.ch>2012-09-20 14:22:57 +0200
commitf60d7f0c1d55a935475ab394955cafddefaa6533 (patch)
tree016122c1b20e51d32ddc2916c84a7a4a719e58bc /drivers/char/agp
parent755d22184f1e5015b040acee794542d9cf8a16c5 (diff)
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drm/i915: Pin backing pages for pread
By using the recently introduced pinning of pages, we can safely drop the mutex in the knowledge that the pages are not going to disappear beneath us, and so we can simplify the code for iterating over the pages. Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk> Reviewed-by: Ben Widawsky <ben@bwidawsk.net> Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
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