From: Rusty Russell <rusty@rustcorp.com.au>
Date: Thu, 12 Mar 2009 20:35:43 +0000 (-0600)
Subject: cpumask: tsk_cpumask for accessing the struct task_struct's cpus_allowed.
X-Git-Tag: v2.6.29-rc8~3^2~1
X-Git-Url: https://openfabrics.org/gitweb/?a=commitdiff_plain;h=76e6eee03353f01bfca707d4dbb1f10a4ee27dc0;p=~emulex%2Finfiniband.git

cpumask: tsk_cpumask for accessing the struct task_struct's cpus_allowed.

This allows us to change the representation (to a dangling bitmap or
cpumask_var_t) without breaking all the callers: they can use
tsk_cpumask() now and won't see a difference as the changes roll into
linux-next.

Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
---

diff --git a/include/linux/sched.h b/include/linux/sched.h
index 8c216e057c9..011db2f4c94 100644
--- a/include/linux/sched.h
+++ b/include/linux/sched.h
@@ -1419,6 +1419,9 @@ struct task_struct {
 #endif
 };
 
+/* Future-safe accessor for struct task_struct's cpus_allowed. */
+#define tsk_cpumask(tsk) (&(tsk)->cpus_allowed)
+
 /*
  * Priority of a process goes from 0..MAX_PRIO-1, valid RT
  * priority is 0..MAX_RT_PRIO-1, and SCHED_NORMAL/SCHED_BATCH