mars/kernel/mars_check.h

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/*
* MARS Long Distance Replication Software
*
* This file is part of MARS project: http://schoebel.github.io/mars/
*
* Copyright (C) 2010-2014 Thomas Schoebel-Theuer
* Copyright (C) 2011-2014 1&1 Internet AG
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License along
* with this program; if not, write to the Free Software Foundation, Inc.,
* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
*/
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#ifndef MARS_CHECK_H
#define MARS_CHECK_H
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#ifdef CONFIG_MARS_DEBUG_DEVEL_VIA_SAY
/* Historic: additional checks for mref integrity.
* Maybe converted to a modern method.
*/
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#define CHECK_LOCK
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#endif
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struct check_mref_aspect {
GENERIC_ASPECT(mref);
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#ifdef CHECK_LOCK
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struct list_head mref_head;
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#endif
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struct generic_callback cb;
struct check_output *output;
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unsigned long last_jiffies;
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atomic_t call_count;
atomic_t callback_count;
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bool installed;
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};
struct check_brick {
MARS_BRICK(check);
};
struct check_input {
MARS_INPUT(check);
};
struct check_output {
MARS_OUTPUT(check);
int instance_nr;
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#ifdef CHECK_LOCK
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struct task_struct *watchdog;
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spinlock_t check_lock;
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struct list_head mref_anchor;
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#endif
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};
MARS_TYPES(check);
#endif