linux-zen-desktop/fs/smb/server/mgmt/ksmbd_ida.c

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2023-10-24 12:59:35 +02:00
// SPDX-License-Identifier: GPL-2.0-or-later
/*
* Copyright (C) 2018 Samsung Electronics Co., Ltd.
*/
#include "ksmbd_ida.h"
static inline int __acquire_id(struct ida *ida, int from, int to)
{
return ida_simple_get(ida, from, to, GFP_KERNEL);
}
int ksmbd_acquire_smb2_tid(struct ida *ida)
{
int id;
id = __acquire_id(ida, 1, 0xFFFFFFFF);
return id;
}
int ksmbd_acquire_smb2_uid(struct ida *ida)
{
int id;
id = __acquire_id(ida, 1, 0);
if (id == 0xFFFE)
id = __acquire_id(ida, 1, 0);
return id;
}
int ksmbd_acquire_async_msg_id(struct ida *ida)
{
return __acquire_id(ida, 1, 0);
}
int ksmbd_acquire_id(struct ida *ida)
{
return __acquire_id(ida, 0, 0);
}
void ksmbd_release_id(struct ida *ida, int id)
{
ida_simple_remove(ida, id);
}