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>
Testcase: igt@gem_create@create-massive
Closes: https://gitlab.freedesktop.org/drm/intel/-/issues/4991
---
 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 e77f9ada31a3..b4ecca21277e 100644
--- a/drivers/gpu/drm/i915/gem/i915_gem_shmem.c
+++ b/drivers/gpu/drm/i915/gem/i915_gem_shmem.c
@@ -542,6 +542,15 @@ 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);
-- 
2.34.1

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