From: Rusty Russell <rusty@rustcorp.com.au>
Date: Mon, 8 Dec 2008 09:58:04 +0000 (+1030)
Subject: KVM: use modern cpumask primitives, no cpumask_t on stack
X-Git-Tag: v2.6.29-rc1~539^2~12
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=6ef7a1bc45f80fe0a263119d404688c596ea5031;p=pandora-kernel.git

KVM: use modern cpumask primitives, no cpumask_t on stack

We're getting rid on on-stack cpumasks for large NR_CPUS.

1) Use cpumask_var_t/alloc_cpumask_var.
2) smp_call_function_mask -> smp_call_function_many
3) cpus_clear, cpus_empty, cpu_set -> cpumask_clear, cpumask_empty,
   cpumask_set_cpu.

This actually generates slightly smaller code than the old one with
CONFIG_CPUMASKS_OFFSTACK=n.  (gcc knows that cpus cannot be NULL in
that case, where cpumask_var_t is cpumask_t[1]).

Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
Signed-off-by: Avi Kivity <avi@redhat.com>
---

Reading git-diff-tree failed