c86085580d
We possiblly have multiple kthreads running for multiple EEH errors (events) and use one spinlock to make the process of handling those EEH events serialized. That's unnecessary and the patch creates only one kthread, which is started during EEH core initialization time in eeh_init(). A new semaphore introduced to count the number of existing EEH events in the queue and the kthread waiting on the semaphore. Signed-off-by: Gavin Shan <shangw@linux.vnet.ibm.com> Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
40 lines
1.3 KiB
C
40 lines
1.3 KiB
C
/*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
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*
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* Copyright (c) 2005 Linas Vepstas <linas@linas.org>
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*/
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#ifndef ASM_POWERPC_EEH_EVENT_H
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#define ASM_POWERPC_EEH_EVENT_H
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#ifdef __KERNEL__
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/*
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* structure holding pci controller data that describes a
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* change in the isolation status of a PCI slot. A pointer
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* to this struct is passed as the data pointer in a notify
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* callback.
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*/
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struct eeh_event {
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struct list_head list; /* to form event queue */
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struct eeh_pe *pe; /* EEH PE */
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};
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int eeh_event_init(void);
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int eeh_send_failure_event(struct eeh_pe *pe);
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void eeh_handle_event(struct eeh_pe *pe);
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#endif /* __KERNEL__ */
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#endif /* ASM_POWERPC_EEH_EVENT_H */
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