tree cfb8d888c0957c543090829e4b9eabad758ba90e
parent 6984128d01cf935820a0563f3a00c6623ba58109
author Chris Wilson <chris@chris-wilson.co.uk> 1451902260 +0000
committer Daniel Vetter <daniel.vetter@ffwll.ch> 1451980788 +0100

drm: Only bump object-reference count when adding first handle

We only need a single reference count for all handles (i.e. non-zero
obj->handle_count) and so can trim a few atomic operations by only
taking the reference on the first handle and dropping it after the last.

Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Reviewed-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Link: http://patchwork.freedesktop.org/patch/msgid/1451902261-25380-2-git-send-email-chris@chris-wilson.co.uk
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>