Commit-ID: a17b4b7487ebcb2aa6d0b859a0981e280d910622
Gitweb: http://git.kernel.org/tip/a17b4b7487ebcb2aa6d0b859a0981e280d910622
Author: Paul E. McKenney <paulmck@xxxxxxxxxxxxxxxxxx>
AuthorDate: Thu, 26 Feb 2015 14:28:25 -0800
Committer: Paul E. McKenney <paulmck@xxxxxxxxxxxxxxxxxx>
CommitDate: Wed, 11 Mar 2015 13:22:36 -0700
blackfin: Use common outgoing-CPU-notification code
This commit removes the open-coded CPU-offline notification with new
common code. This change avoids calling scheduler code using RCU from
an offline CPU that RCU is ignoring. This commit is compatible with
the existing code in not checking for timeout during a prior offline
for a given CPU.
Signed-off-by: Paul E. McKenney <paulmck@xxxxxxxxxxxxxxxxxx>
Cc: Steven Miao <realmz6@xxxxxxxxx>
Cc: <adi-buildroot-devel@xxxxxxxxxxxxxxxxxxxxx>
---
arch/blackfin/mach-common/smp.c | 6 ++----
1 file changed, 2 insertions(+), 4 deletions(-)
diff --git a/arch/blackfin/mach-common/smp.c b/arch/blackfin/mach-common/smp.c
index 8ad3e90..1c72595 100644
--- a/arch/blackfin/mach-common/smp.c
+++ b/arch/blackfin/mach-common/smp.c
@@ -413,16 +413,14 @@ int __cpu_disable(void)
return 0;
}
-static DECLARE_COMPLETION(cpu_killed);
-
int __cpu_die(unsigned int cpu)
{
- return wait_for_completion_timeout(&cpu_killed, 5000);
+ return cpu_wait_death(cpu, 5);
}
void cpu_die(void)
{
- complete(&cpu_killed);
+ (void)cpu_report_death();
atomic_dec(&init_mm.mm_users);
atomic_dec(&init_mm.mm_count);
--
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