mirror of
https://github.com/torvalds/linux.git
synced 2026-03-13 23:46:14 +01:00
31ca7bb8e8
This corresponds to the NT syscall NtReleaseMutant(). This syscall decrements the mutex's recursion count by one, and returns the previous value. If the mutex is not owned by the current task, the function instead fails and returns -EPERM. Signed-off-by: Elizabeth Figura <zfigura@codeweavers.com> Link: https://lore.kernel.org/r/20241213193511.457338-7-zfigura@codeweavers.com Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
45 lines
1 KiB
C
45 lines
1 KiB
C
/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
|
|
/*
|
|
* Kernel support for NT synchronization primitive emulation
|
|
*
|
|
* Copyright (C) 2021-2022 Elizabeth Figura <zfigura@codeweavers.com>
|
|
*/
|
|
|
|
#ifndef __LINUX_NTSYNC_H
|
|
#define __LINUX_NTSYNC_H
|
|
|
|
#include <linux/types.h>
|
|
|
|
struct ntsync_sem_args {
|
|
__u32 count;
|
|
__u32 max;
|
|
};
|
|
|
|
struct ntsync_mutex_args {
|
|
__u32 owner;
|
|
__u32 count;
|
|
};
|
|
|
|
#define NTSYNC_WAIT_REALTIME 0x1
|
|
|
|
struct ntsync_wait_args {
|
|
__u64 timeout;
|
|
__u64 objs;
|
|
__u32 count;
|
|
__u32 index;
|
|
__u32 flags;
|
|
__u32 owner;
|
|
__u32 pad[2];
|
|
};
|
|
|
|
#define NTSYNC_MAX_WAIT_COUNT 64
|
|
|
|
#define NTSYNC_IOC_CREATE_SEM _IOW ('N', 0x80, struct ntsync_sem_args)
|
|
#define NTSYNC_IOC_WAIT_ANY _IOWR('N', 0x82, struct ntsync_wait_args)
|
|
#define NTSYNC_IOC_WAIT_ALL _IOWR('N', 0x83, struct ntsync_wait_args)
|
|
#define NTSYNC_IOC_CREATE_MUTEX _IOW ('N', 0x84, struct ntsync_mutex_args)
|
|
|
|
#define NTSYNC_IOC_SEM_RELEASE _IOWR('N', 0x81, __u32)
|
|
#define NTSYNC_IOC_MUTEX_UNLOCK _IOWR('N', 0x85, struct ntsync_mutex_args)
|
|
|
|
#endif
|