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[S390] cleanup facility list handling

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Store the facility list once at system startup with stfl/stfle and
reuse the result for all facility tests.

Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
This commit is contained in:
Martin Schwidefsky
2010-10-25 16:10:51 +02:00
committed by Martin Schwidefsky
parent eca577ef59
commit 14375bc4eb
12 changed files with 66 additions and 74 deletions
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arch/s390/kernel/smp.c
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@@ -594,6 +594,8 @@ int __cpuinit __cpu_up(unsigned int cpu)
cpu_lowcore->kernel_asce = S390_lowcore.kernel_asce;
cpu_lowcore->machine_flags = S390_lowcore.machine_flags;
cpu_lowcore->ftrace_func = S390_lowcore.ftrace_func;
memcpy(cpu_lowcore->stfle_fac_list, S390_lowcore.stfle_fac_list,
MAX_FACILITY_BIT/8);
eieio();
while (sigp(cpu, sigp_restart) == sigp_busy)