mirror of
https://github.com/opnsense/src.git
synced 2026-02-24 10:20:24 -05:00
f85181b036
Simply use a typedef for refcount_t on atomic_t, this allow us to use a nativ type and also changing struct kref to directly use a refcount_t like Linux. Reviewed by: bz Sponsored by: Beckhoff Automation GmbH & Co. KG Differential Revision: https://reviews.freebsd.org/D45207 (cherry picked from commit abb1a1340e3f0dcdbb81b5c42ad304f02c812e20)
84 lines
2.3 KiB
C
84 lines
2.3 KiB
C
/*-
|
|
* Copyright (c) 2020 The FreeBSD Foundation
|
|
*
|
|
* This software was developed by Emmanuel Vadot under sponsorship
|
|
* from the FreeBSD Foundation.
|
|
*
|
|
* Redistribution and use in source and binary forms, with or without
|
|
* modification, are permitted provided that the following conditions
|
|
* are met:
|
|
* 1. Redistributions of source code must retain the above copyright
|
|
* notice, this list of conditions and the following disclaimer.
|
|
* 2. Redistributions in binary form must reproduce the above copyright
|
|
* notice, this list of conditions and the following disclaimer in the
|
|
* documentation and/or other materials provided with the distribution.
|
|
*
|
|
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
|
|
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
|
|
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
|
|
* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
|
|
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
|
|
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
|
|
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
|
|
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
|
|
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
|
|
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
|
|
* SUCH DAMAGE.
|
|
*/
|
|
|
|
#ifndef _LINUXKPI_LINUX_REFCOUNT_H
|
|
#define _LINUXKPI_LINUX_REFCOUNT_H
|
|
|
|
#include <linux/atomic.h>
|
|
|
|
typedef atomic_t refcount_t;
|
|
|
|
static inline void
|
|
refcount_set(refcount_t *ref, unsigned int i)
|
|
{
|
|
atomic_set(ref, i);
|
|
}
|
|
|
|
static inline void
|
|
refcount_inc(refcount_t *ref)
|
|
{
|
|
atomic_inc(ref);
|
|
}
|
|
|
|
static inline bool
|
|
refcount_inc_not_zero(refcount_t *ref)
|
|
{
|
|
return (atomic_inc_not_zero(ref));
|
|
}
|
|
|
|
static inline void
|
|
refcount_dec(refcount_t *ref)
|
|
{
|
|
atomic_dec(ref);
|
|
}
|
|
|
|
static inline unsigned int
|
|
refcount_read(refcount_t *ref)
|
|
{
|
|
return atomic_read(ref);
|
|
}
|
|
|
|
static inline bool
|
|
refcount_dec_and_lock_irqsave(refcount_t *ref, spinlock_t *lock,
|
|
unsigned long *flags)
|
|
{
|
|
if (atomic_dec_and_test(ref) == true) {
|
|
spin_lock_irqsave(lock, flags);
|
|
return (true);
|
|
}
|
|
return (false);
|
|
}
|
|
|
|
static inline bool
|
|
refcount_dec_and_test(refcount_t *r)
|
|
{
|
|
|
|
return (atomic_dec_and_test(r));
|
|
}
|
|
|
|
#endif /* __LINUXKPI_LINUX_REFCOUNT_H__ */
|