search for: smp_altern

In situations where page table updates need only be made locally, and there is no cross-processor A/D bit races involved, we need not use the heavyweight xchg instruction to atomically fetch and clear page table entries. Instead, we can just read and clear them directly. This introduces a neat optimization for non-SMP kernels; drop the atomic xchg operations from page table updates. Thanks to

In situations where page table updates need only be made locally, and there is no cross-processor A/D bit races involved, we need not use the heavyweight xchg instruction to atomically fetch and clear page table entries. Instead, we can just read and clear them directly. This introduces a neat optimization for non-SMP kernels; drop the atomic xchg operations from page table updates. Thanks to

I am trying to build xen on x86_64 SLES 9 SP2 box this morning and am getting this error: arch/xen/kernel/built-in.o(.text+0x1bd6): In function `__do_suspend'': : undefined reference to `HYPERVISOR_vcpu_pickle'' make[4]: *** [.tmp_vmlinux1] Error 1 make[4]: Leaving directory `/tmp/xen-unstable.hg/linux-2.6.12-xen0'' make[3]: *** [build] Error 2 make[3]: Leaving directory