[S390] add hook to reenable mss after hibernation
Reenable multiple subchannel sets after hibernation, prior to the device callbacks. Cc: <stable@kernel.org> Signed-off-by: Sebastian Ott <sebott@linux.vnet.ibm.com> Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
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@ -256,6 +256,9 @@ restore_registers:
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lghi %r2,0
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brasl %r14,arch_set_page_states
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/* Reinitialize the channel subsystem */
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brasl %r14,channel_subsystem_reinit
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/* Return 0 */
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lmg %r6,%r15,STACK_FRAME_OVERHEAD + __SF_GPRS(%r15)
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lghi %r2,0
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@ -1043,6 +1043,11 @@ static int __init channel_subsystem_init_sync(void)
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}
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subsys_initcall_sync(channel_subsystem_init_sync);
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void channel_subsystem_reinit(void)
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{
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chsc_enable_facility(CHSC_SDA_OC_MSS);
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}
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#ifdef CONFIG_PROC_FS
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static ssize_t cio_settle_write(struct file *file, const char __user *buf,
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size_t count, loff_t *ppos)
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