Messages in this thread Patch in this message | | | Date | Wed, 22 Mar 2006 16:17:23 +0100 | From | Martin Schwidefsky <> | Subject | [patch 7/24] s390: cpu up retries. |
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From: Michael Ryan <ryan@funsoft.com>
[patch 7/24] s390: cpu up retries.
Retry starting of new cpu if sigp restart returns condition code 2 (busy).
Signed-off-by: Michael Ryan <ryan@funsoft.com> Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com> ---
arch/s390/kernel/smp.c | 4 +++- 1 files changed, 3 insertions(+), 1 deletion(-)
diff -urpN linux-2.6/arch/s390/kernel/smp.c linux-2.6-patched/arch/s390/kernel/smp.c --- linux-2.6/arch/s390/kernel/smp.c 2006-03-20 06:53:29.000000000 +0100 +++ linux-2.6-patched/arch/s390/kernel/smp.c 2006-03-22 14:36:17.000000000 +0100 @@ -665,7 +665,9 @@ __cpu_up(unsigned int cpu) cpu_lowcore->current_task = (unsigned long) idle; cpu_lowcore->cpu_data.cpu_nr = cpu; eieio(); - signal_processor(cpu,sigp_restart); + + while (signal_processor(cpu,sigp_restart) == sigp_busy) + udelay(10); while (!cpu_online(cpu)) cpu_relax(); - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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