forked from Qortal/Brooklyn
2a709f28fa
* 0day explit mitigation * Memory corruption prevention * Privilege escalation prevention * Buffer over flow prevention * File System corruption defense * Thread escape prevention This may very well be the most intensive inclusion to BrooklynR. This will not be part of an x86 suite nor it will be released as tool kit. The security core toolkit will remain part of kernel base.
47 lines
1.4 KiB
C
47 lines
1.4 KiB
C
/*
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* Copyright (c) 2008 Intel Corporation
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* Author: Matthew Wilcox <willy@linux.intel.com>
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*
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* Distributed under the terms of the GNU GPL, version 2
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*
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* Please see kernel/semaphore.c for documentation of these functions
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*/
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#ifndef __LINUX_SEMAPHORE_H
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#define __LINUX_SEMAPHORE_H
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#include <linux/list.h>
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#include <linux/spinlock.h>
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/* Please don't access any members of this structure directly */
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struct semaphore {
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raw_spinlock_t lock;
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unsigned int count;
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struct list_head wait_list;
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};
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#define __SEMAPHORE_INITIALIZER(name, n) \
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{ \
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.lock = __RAW_SPIN_LOCK_UNLOCKED((name).lock), \
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.count = n, \
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.wait_list = LIST_HEAD_INIT((name).wait_list), \
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}
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#define DEFINE_SEMAPHORE(name) \
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struct semaphore name = __SEMAPHORE_INITIALIZER(name, 1)
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static inline void sema_init(struct semaphore *sem, int val)
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{
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static struct lock_class_key __key;
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*sem = (struct semaphore) __SEMAPHORE_INITIALIZER(*sem, val);
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lockdep_init_map(&sem->lock.dep_map, "semaphore->lock", &__key, 0);
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}
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extern void down(struct semaphore *sem);
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extern int __must_check down_interruptible(struct semaphore *sem) __intentional_overflow(-1);
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extern int __must_check down_killable(struct semaphore *sem);
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extern int __must_check down_trylock(struct semaphore *sem);
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extern int __must_check down_timeout(struct semaphore *sem, long jiffies);
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extern void up(struct semaphore *sem);
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#endif /* __LINUX_SEMAPHORE_H */
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