drm/msm: Split submit_lookup_objects() into two loops

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First loop does copy_from_user() without the table lock held and
just stores the handle. Second loop looks up buffer objects with the
table_lock held without potentially blocking or faulting. This lets us
clean up a bunch of custom, non-faulting copy_from_user() code.

Signed-off-by: Kristian H. Kristensen <hoegsberg@chromium.org>
Signed-off-by: Rob Clark <robdclark@chromium.org>

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Kristian H. Kristensen 2019-03-20 10:09:10 -07:00 • committed by Rob Clark

parent 8ea274accd

commit b673499ae7

2 changed files with 21 additions and 28 deletions

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5

drivers/gpu/drm/msm/msm_gem.h

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44

drivers/gpu/drm/msm/msm_gem_submit.c

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