How do you manage and track incoming patches?
Patches are submitted to the Ubuntu kernels via the kernel-team mailing list. We use this list as the primary record of the discussions, acceptance, or rejection, of each patch (see Kernel/FAQ/GeneralMailingList). We use the patchworks patch tracking system to aid in this process http://patchwork.ozlabs.org/project/ubuntu-kernel/list/. See Kernel/Handbook/Patchworks for documentation on how we use patchworks within the team.