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authorJack Steiner <steiner@sgi.com>2004-07-12 00:27:49 -0700
committerDavid Mosberger <davidm@tiger.hpl.hp.com>2004-07-12 00:27:49 -0700
commit48cd6783d73afae968acf1c36e7b4e149328d20b (patch)
tree81785d34f28b2afa710c6ec91d7af9aecee41b6a /kernel
parenteac9ee8eb9f1a46be51870207fa68ce169810ded (diff)
downloadhistory-48cd6783d73afae968acf1c36e7b4e149328d20b.tar.gz
[PATCH] ia64: Reduce TLB flushing during process migration
This patch adds an architecture-specific callout after explicit processor migrations. The callout allows architectures (or platforms) to update TLB specific information (ex., cpu_vm_mask). Signed-off-by: Jack Steiner <steiner@sgi.com> Signed-off-by: David Mosberger <davidm@hpl.hp.com>
Diffstat (limited to 'kernel')
-rw-r--r--kernel/sched.c2
1 files changed, 2 insertions, 0 deletions
diff --git a/kernel/sched.c b/kernel/sched.c
index 9e676db0267b79..205a81d64b20cf 100644
--- a/kernel/sched.c
+++ b/kernel/sched.c
@@ -40,6 +40,7 @@
#include <linux/cpu.h>
#include <linux/percpu.h>
#include <linux/kthread.h>
+#include <asm/tlb.h>
#include <asm/unistd.h>
@@ -3349,6 +3350,7 @@ int set_cpus_allowed(task_t *p, cpumask_t new_mask)
task_rq_unlock(rq, &flags);
wake_up_process(rq->migration_thread);
wait_for_completion(&req.done);
+ tlb_migrate_finish(p->mm);
return 0;
}
out: