drm/i915: Translate ENOSPC from shmem_get_page() to ENOMEM
authorChris Wilson <chris@chris-wilson.co.uk>
Tue, 25 Mar 2014 13:23:03 +0000 (13:23 +0000)
committerDaniel Vetter <daniel.vetter@ffwll.ch>
Tue, 20 May 2014 07:45:22 +0000 (09:45 +0200)
commit0820baf39bd95dcbbc3600bd7f50b137f41ebb8a
tree5144ebd78efeab36b99f483e3fd1b509f60d7209
parentb6fdd0f2b990006daba19eec676b632faa523fc8
drm/i915: Translate ENOSPC from shmem_get_page() to ENOMEM

shmemfs first checks if there is enough memory to allocate the page
and reports ENOSPC should there be insufficient, along with
the usual ENOMEM for a genuine allocation failure.

We use ENOSPC in our driver to mean that we have run out of aperture
space and so want to translate the error from shmemfs back to
our usual understanding of ENOMEM. None of the the other GEM users
appear to distinguish between ENOMEM and ENOSPC in their error handling,
hence it is easiest to do the fixup in i915.ko

Cc: Hugh Dickins <hughd@google.com>
Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Reviewed-by: Robert Beckett <robert.beckett@intel.com>
Reviewed-by: Rafael Barbalho <rafael.barbalho@intel.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
drivers/gpu/drm/i915/i915_gem.c