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drm/etnaviv: don't trigger OOM killer when page allocation fails 

GPU buffers can be quite large, so userspace is expected to deal with
allocation failure. Don't trigger the OOM killer when page allocation for
the GEM objects fails, as this opens an easy possiblity for unprivileged
applications to DOS the system,a s the shmem pages are not fully accounted
to the allocating process.

Signed-off-by: Lucas Stach <dev@lynxeye.de>
This commit is contained in:
Lucas Stach 2017-06-06 09:17:06 +02:00 committed by Lucas Stach
parent 12d016626f
commit 6cbf04001e
1 changed files with 2 additions and 1 deletions
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3
drivers/gpu/drm/etnaviv/etnaviv_gem.c
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@ -662,7 +662,8 @@ static struct drm_gem_object *__etnaviv_gem_new(struct drm_device *dev,
* going to pin these pages.
*/
mapping = obj->filp->f_mapping;
mapping_set_gfp_mask(mapping, GFP_HIGHUSER);
mapping_set_gfp_mask(mapping, GFP_HIGHUSER |
__GFP_NORETRY | __GFP_NOWARN);
}
if (ret)