On Tue, 5 Jul 2022 15:24:53 +0300 Gwan-gyeong Mun <gwan-gyeong....@intel.com> wrote:
> The __shmem_file_setup() function returns -EINVAL if size is greater than > MAX_LFS_FILESIZE. To handle the same error as other code that returns > -E2BIG when the size is too large, it add a code that returns -E2BIG when > the size is larger than the size that can be handled. > > Signed-off-by: Gwan-gyeong Mun <gwan-gyeong....@intel.com> > Cc: Chris Wilson <ch...@chris-wilson.co.uk> > Cc: Matthew Auld <matthew.a...@intel.com> > Cc: Thomas Hellström <thomas.hellst...@linux.intel.com> > Reviewed-by: Nirmoy Das <nirmoy....@intel.com> Reviewed-by: Mauro Carvalho Chehab <mche...@kernel.org> > --- > drivers/gpu/drm/i915/gem/i915_gem_shmem.c | 9 +++++++++ > 1 file changed, 9 insertions(+) > > diff --git a/drivers/gpu/drm/i915/gem/i915_gem_shmem.c > b/drivers/gpu/drm/i915/gem/i915_gem_shmem.c > index 604e8829e8ea..8495e87432f6 100644 > --- a/drivers/gpu/drm/i915/gem/i915_gem_shmem.c > +++ b/drivers/gpu/drm/i915/gem/i915_gem_shmem.c > @@ -541,6 +541,15 @@ static int __create_shmem(struct drm_i915_private *i915, > > drm_gem_private_object_init(&i915->drm, obj, size); > > + /* XXX: The __shmem_file_setup() function returns -EINVAL if size is > + * greater than MAX_LFS_FILESIZE. > + * To handle the same error as other code that returns -E2BIG when > + * the size is too large, we add a code that returns -E2BIG when the > + * size is larger than the size that can be handled. > + */ > + if (size > MAX_LFS_FILESIZE) > + return -E2BIG; > + > if (i915->mm.gemfs) > filp = shmem_file_setup_with_mnt(i915->mm.gemfs, "i915", size, > flags);
