From: Christoph Lameter To: Rusty Russell Cc: Andi Kleen , Jeremy Fitzhardinge Cc: linux-kernel@vger.kernel.org Cc: Ingo Molnar Cc: Thomas Gleixner Subject: Per cpu relocation to ZERO and x86_32 percpu ops on x86_64 Subject-Prefix: [patch @num@/@total@] This patchset allows the use of x86_32 percpu ops on x86_64 while maintaining %gs pointing to the pda. It does that by moving the x86_64 pda into the percpu area (thereby pointing %gs at the per cpu area) and then relocating the x86_64 per cpu variables to start at 0. Patch applies on top of the per cpu cleanup patches V2. See http://marc.info/?l=linux-kernel&m=119628478316525&w=2 Ultimately I plan to make the per cpu accessors arch independent (see the RFC at http://marc.info/?l=linux-kernel&m=119552126330405&w=2)