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powerpc/pseries: Don't panic when H_PROD fails during cpu-online. 

If an online-attempt on a CPU which has been offlined using H_CEDE
with an appropriate cede latency hint fails, don't panic.

Instead print the error message and let the __cpu_up() code notify the
CPU Hotplug framework of the failure, which in turn can notify the
other subsystem through CPU_UP_CANCELED.

Signed-off-by: Gautham R Shenoy <ego@in.ibm.com>
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
This commit is contained in:
Gautham R Shenoy 2009-12-10 01:19:37 +00:00 committed by Benjamin Herrenschmidt
parent 50891457f1
commit e9edb232d3
1 changed files with 2 additions and 2 deletions
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4
arch/powerpc/platforms/pseries/smp.c
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@ -144,8 +144,8 @@ static void __devinit smp_pSeries_kick_cpu(int nr)
hcpuid = get_hard_smp_processor_id(nr);
rc = plpar_hcall_norets(H_PROD, hcpuid);
if (rc != H_SUCCESS)
panic("Error: Prod to wake up processor %d Ret= %ld\n",
nr, rc);
printk(KERN_ERR "Error: Prod to wake up processor %d\
Ret= %ld\n", nr, rc);
}
}