On 12/8/06, Paul Jackson <[email protected]> wrote:
-int __cpuset_zone_allowed(struct zone *z, gfp_t gfp_mask)
+int __cpuset_zone_allowed_softwall(struct zone *z, gfp_t gfp_mask)
{
int node; /* node that zone z is on */
const struct cpuset *cs; /* current cpuset ancestors */
@@ -2335,6 +2351,40 @@ int __cpuset_zone_allowed(struct zone *z
return allowed;
}
While you're changing this, is there a good reason not to check
is_mem_exclusive() *before* taking callback_mutex and calling
nearest_exclusive_ancestor()?
something like:
rcu_read_lock();
exc = is_mem_exclusive(rcu_dereference(current->cs));
rcu_read_unlock();
if (exc)
return 1;
... take callback_mutex, etc ...
Paul
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