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  • xenomaixenomai
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  • arch
  • s390
  • kernel
  • ipl.c
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  • Michael Holzheu's avatar
    [S390] Force PSW restart on online CPU · 1943f53c
    Michael Holzheu authored Oct 30, 2011
    
    
    PSW restart can be triggered on offline CPUs. If this happens, currently
    the PSW restart code fails, because functions like smp_processor_id()
    do not work on offline CPUs. This patch fixes this as follows:
    
    If PSW restart is triggered on an offline CPU, the PSW restart (sigp restart)
    is done a second time on another CPU that is online and the old CPU is
    stopped afterwards.
    
    Signed-off-by: default avatarMichael Holzheu <holzheu@linux.vnet.ibm.com>
    Signed-off-by: default avatarMartin Schwidefsky <schwidefsky@de.ibm.com>
    1943f53c

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