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786b99ed13
And replace all fb lookups with it. Also add a WARN to drm_mode_object_find since that is now no longer the blessed interface to look up an fb. And add kerneldoc to both functions. This only updates all callsites, but immediately drops the acquired refence again. Hence all callers still rely on the fact that a mode fb can't disappear while they're holding the struct mutex. Subsequent patches will instate proper use of refcounts, and then rework the rmfb and unref code to no longer serialize fb destruction with the mode_config lock. We don't want that since otherwise a compositor might end up stalling for a few frames in rmfb. v2: Don't use kref_get_unless_zero - Greg KH doesn't like that kind of interface. Reviewed-by: Rob Clark <rob@ti.com> Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch> |
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