mirror of
https://github.com/edk2-porting/linux-next.git
synced 2024-12-26 14:14:01 +08:00
1b375dc307
Move the definitions for wound/wait mutexes out to a separate header, ww_mutex.h. This reduces clutter in mutex.h, and increases readability. Suggested-by: Linus Torvalds <torvalds@linux-foundation.org> Signed-off-by: Maarten Lankhorst <maarten.lankhorst@canonical.com> Acked-by: Peter Zijlstra <a.p.zijlstra@chello.nl> Acked-by: Rik van Riel <riel@redhat.com> Acked-by: Maarten Lankhorst <maarten.lankhorst@canonical.com> Cc: Dave Airlie <airlied@gmail.com> Link: http://lkml.kernel.org/r/51D675DC.3000907@canonical.com [ Tidied up the code a bit. ] Signed-off-by: Ingo Molnar <mingo@kernel.org>
63 lines
2.1 KiB
C
63 lines
2.1 KiB
C
/*
|
|
* Header file for reservations for dma-buf and ttm
|
|
*
|
|
* Copyright(C) 2011 Linaro Limited. All rights reserved.
|
|
* Copyright (C) 2012-2013 Canonical Ltd
|
|
* Copyright (C) 2012 Texas Instruments
|
|
*
|
|
* Authors:
|
|
* Rob Clark <rob.clark@linaro.org>
|
|
* Maarten Lankhorst <maarten.lankhorst@canonical.com>
|
|
* Thomas Hellstrom <thellstrom-at-vmware-dot-com>
|
|
*
|
|
* Based on bo.c which bears the following copyright notice,
|
|
* but is dual licensed:
|
|
*
|
|
* Copyright (c) 2006-2009 VMware, Inc., Palo Alto, CA., USA
|
|
* All Rights Reserved.
|
|
*
|
|
* Permission is hereby granted, free of charge, to any person obtaining a
|
|
* copy of this software and associated documentation files (the
|
|
* "Software"), to deal in the Software without restriction, including
|
|
* without limitation the rights to use, copy, modify, merge, publish,
|
|
* distribute, sub license, and/or sell copies of the Software, and to
|
|
* permit persons to whom the Software is furnished to do so, subject to
|
|
* the following conditions:
|
|
*
|
|
* The above copyright notice and this permission notice (including the
|
|
* next paragraph) shall be included in all copies or substantial portions
|
|
* of the Software.
|
|
*
|
|
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
|
|
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
|
|
* FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. IN NO EVENT SHALL
|
|
* THE COPYRIGHT HOLDERS, AUTHORS AND/OR ITS SUPPLIERS BE LIABLE FOR ANY CLAIM,
|
|
* DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR
|
|
* OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE
|
|
* USE OR OTHER DEALINGS IN THE SOFTWARE.
|
|
*/
|
|
#ifndef _LINUX_RESERVATION_H
|
|
#define _LINUX_RESERVATION_H
|
|
|
|
#include <linux/ww_mutex.h>
|
|
|
|
extern struct ww_class reservation_ww_class;
|
|
|
|
struct reservation_object {
|
|
struct ww_mutex lock;
|
|
};
|
|
|
|
static inline void
|
|
reservation_object_init(struct reservation_object *obj)
|
|
{
|
|
ww_mutex_init(&obj->lock, &reservation_ww_class);
|
|
}
|
|
|
|
static inline void
|
|
reservation_object_fini(struct reservation_object *obj)
|
|
{
|
|
ww_mutex_destroy(&obj->lock);
|
|
}
|
|
|
|
#endif /* _LINUX_RESERVATION_H */
|