On Wed, Jul 24, 2024 at 12:55:52PM +0800, WangYuli wrote: > 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. Good luck to them, given that almost immediately after it goes out of support it will become insecure :( > 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. They have had 6 years to plan for this, how much time do they need? > 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. Performance optimizations for old kernels like this are not a good idea, please just have them move to a more modern, and actually supported, kernel instead if they wish to have performance improvements. Otherwise you are ensuring they will never move. good luck! greg k-h
