From: Paul E. McKenney Date: Thu, 26 Feb 2015 22:28:25 +0000 (-0800) Subject: blackfin: Use common outgoing-CPU-notification code X-Git-Tag: v4.1-rc1~145^2~2^2^5~19 X-Git-Url: https://git.karo-electronics.de/?a=commitdiff_plain;h=a17b4b7487ebcb2aa6d0b859a0981e280d910622;p=karo-tx-linux.git 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 Cc: Steven Miao Cc: --- diff --git a/arch/blackfin/mach-common/smp.c b/arch/blackfin/mach-common/smp.c index 8ad3e90cc8fc..1c7259597395 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);