linuxkpi: Add `gfp_mask` field to `struct shrink_control`

[dumbbell]

Summary

This is part of the update of the DRM drivers to Linux 5.13.

[bz]

Sadly there is no contexts available on the uploaded diffs. Can you diff -U9999 or use arc?

Do we have to be careful here on KBI? If no one beats me to it (@imp is always good at these things) I'll check once back at a proper desk.

[dumbbell]

Re-upload patch with context.

[dumbbell]

In D37913#861422, @bz wrote:

Sadly there is no contexts available on the uploaded diffs. Can you diff -U9999 or use arc?

Done.

Do we have to be careful here on KBI? If no one beats me to it (@imp is always good at these things) I'll check once back at a proper desk.

This is the first time in the DRM drivers in Linux 5.13 (the version I'm working on) that this structure is initialized (as a variable local to the function in this case), so it shouldn't be a problem for the DRM drivers. I can't speak for other drivers maintained outside of the src tree.