tree bb5f86097d2e7f5e855824e76fe51bec8e97e635
parent 8040513870399f1cb032cb8bc805df5042fedcdf
author Chris Wilson <chris@chris-wilson.co.uk> 1352979150 +0000
committer Daniel Vetter <daniel.vetter@ffwll.ch> 1354315445 +0100

drm/i915: Use a slab for object allocation

The primary purpose of this was to debug some use-after-free memory
corruption that was causing an OOPS inside drm/i915. As it turned out
the corruption was being caused elsewhere and i915.ko as a major user of
many objects was being hit hardest.

Indeed as we do frequent the generic kmalloc caches, dedicating one to
ourselves (or at least naming one for us depending upon the core) aids
debugging our own slab usage.

Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Reviewed-by: Jesse Barnes <jbarnes@virtuousgeek.org>
Reviewed-by: Ben Widawsky <ben@bwidawsk.net>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>