diff options
| author | Jens Axboe <jens.axboe@oracle.com> | 2009-11-03 21:14:39 +0100 |
|---|---|---|
| committer | Jens Axboe <jens.axboe@oracle.com> | 2009-11-03 21:14:39 +0100 |
| commit | 2058297d2d045cb57138c33b87cfabcc80e65186 (patch) | |
| tree | 7ccffd0e162cbd7471f643561e79f23abb989a62 /arch/s390/kernel/smp.c | |
| parent | 150e6c67f4bf6ab51e62defc41bd19a2eefe5709 (diff) | |
| parent | 4b27e1bb442e964903f8a3fa6bdf33a602dc0941 (diff) | |
Merge branch 'for-linus' into for-2.6.33
Conflicts:
block/cfq-iosched.c
Signed-off-by: Jens Axboe <jens.axboe@oracle.com>
Diffstat (limited to 'arch/s390/kernel/smp.c')
| -rw-r--r-- | arch/s390/kernel/smp.c | 7 |
1 files changed, 4 insertions, 3 deletions
diff --git a/arch/s390/kernel/smp.c b/arch/s390/kernel/smp.c index c932caa5e85..93e52039321 100644 --- a/arch/s390/kernel/smp.c +++ b/arch/s390/kernel/smp.c @@ -76,7 +76,6 @@ static int cpu_stopped(int cpu) __u32 status; switch (signal_processor_ps(&status, 0, cpu, sigp_sense)) { - case sigp_order_code_accepted: case sigp_status_stored: /* Check for stopped and check stop state */ if (status & 0x50) @@ -638,6 +637,8 @@ void __cpu_die(unsigned int cpu) /* Wait until target cpu is down */ while (!cpu_stopped(cpu)) cpu_relax(); + while (signal_processor_p(0, cpu, sigp_set_prefix) == sigp_busy) + udelay(10); smp_free_lowcore(cpu); pr_info("Processor %d stopped\n", cpu); } @@ -645,8 +646,8 @@ void __cpu_die(unsigned int cpu) void cpu_die(void) { idle_task_exit(); - signal_processor(smp_processor_id(), sigp_stop); - BUG(); + while (signal_processor(smp_processor_id(), sigp_stop) == sigp_busy) + cpu_relax(); for (;;); } |