Hi greg k-h, As a commercial Linux distribution maintainer, we understand that even though upstream support for linux-4.19.y is ending, our users' reliance on this kernel version will not cease immediately. They often lack the time or resources to promptly migrate all their devices to a newer kernel, due to considerations such as stability, operational costs, and other factors. Therefore, to provide a more graceful conclusion to the linux-4.19.y lifecycle, we propose backporting these performance optimizations to extend its useful life and ensure a smooth transition for commercial users by the way. Of course, we appreciate your suggestion and will prioritize backporting these optimizations to linux-5.10.y and linux 5.4.y first. Stay tuned for updates. We are committed to staying informed about kernel updates and community trends. Thanks. Sincerely, -- WangYuli
