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| author | Chris Wilson <[email protected]> | 2016-10-28 13:58:39 +0100 |
|---|---|---|
| committer | Chris Wilson <[email protected]> | 2016-10-28 20:53:48 +0100 |
| commit | bb6dc8d96b683a6052162c36062cd8e9329e4f21 (patch) | |
| tree | 413228a81f960fae1ad9ac2bca62d6d97f573741 /tools/perf/scripts/python/bin/stackcollapse-record | |
| parent | 7dd737f377ffb59010b6811f934998d42f24a8bd (diff) | |
drm/i915: Implement pread without struct-mutex
We only need struct_mutex within pread 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 <[email protected]>
Reviewed-by: Joonas Lahtinen <[email protected]>
Link: http://patchwork.freedesktop.org/patch/msgid/[email protected]
Diffstat (limited to 'tools/perf/scripts/python/bin/stackcollapse-record')
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