fs/smb/server/mgmt/ksmbd_ida.c

Source file repositories/reference/linux-study-clean/fs/smb/server/mgmt/ksmbd_ida.c

File Facts

System
Linux kernel
Corpus path
fs/smb/server/mgmt/ksmbd_ida.c
Extension
.c
Size
713 bytes
Lines
39
Domain
Core OS
Bucket
VFS And Filesystem Core
Inferred role
Core OS: implementation source
Status
source implementation candidate

Why This File Exists

Core operating-system implementation surface: boot, tasks, memory, VFS, syscall-facing interfaces, synchronization, credentials, and isolation.

Dependency Surface

Detected Declarations

Annotated Snippet

// SPDX-License-Identifier: GPL-2.0-or-later
/*
 *   Copyright (C) 2018 Samsung Electronics Co., Ltd.
 */

#include "ksmbd_ida.h"
#include "../glob.h"

int ksmbd_acquire_smb2_tid(struct ida *ida)
{
	return ida_alloc_range(ida, 1, 0xFFFFFFFE, KSMBD_DEFAULT_GFP);
}

int ksmbd_acquire_smb2_uid(struct ida *ida)
{
	int id;

	id = ida_alloc_min(ida, 1, KSMBD_DEFAULT_GFP);
	if (id == 0xFFFE)
		id = ida_alloc_min(ida, 1, KSMBD_DEFAULT_GFP);

	return id;
}

int ksmbd_acquire_async_msg_id(struct ida *ida)
{
	return ida_alloc_min(ida, 1, KSMBD_DEFAULT_GFP);
}

int ksmbd_acquire_id(struct ida *ida)
{
	return ida_alloc(ida, KSMBD_DEFAULT_GFP);
}

void ksmbd_release_id(struct ida *ida, int id)
{
	ida_free(ida, id);
}

Annotation

Implementation Notes