* Andi Kleen (ak@xxxxxxx) wrote: > On Tue, Aug 16, 2005 at 05:07:36PM -0700, Chris Wright wrote: > > * Andi Kleen (ak@xxxxxxx) wrote: > > > On Wed, Aug 10, 2005 at 09:56:40PM -0700, zach@xxxxxxxxxx wrote: > > > > Add an accessor function for getting the per-CPU gdt. Callee must already > > > > have the CPU. > > > > > > What is the accessor good for? > > > > > > It looks just like code obfuscation to me. > > > > Xen handles gdt differently (one page per cpu instead of per_cpu data). > > So this is for handling that access cleanly. > > It would be much cleaner to use a per_cpu pointer then and just allocate > it differently. OK, that's easily done, but it will add extra indirection. This currently changes nothing for common case. The cpu_gdt_descr effectively has that address cached already (just not as per_cpu).
