const.h

来自「omap3 linux 2.6 用nocc去除了冗余代码」· C头文件 代码 · 共 46 行

/*
 * include/linux/nfsd/const.h
 *
 * Various constants related to NFS.
 *
 * Copyright (C) 1995-1997 Olaf Kirch <[e-mail]>
 */

#define _LINUX_NFSD_CONST_H

#include <linux/nfs.h>
#include <linux/nfs2.h>
#include <linux/nfs3.h>
#include <linux/nfs4.h>

/*
 * Maximum protocol version supported by knfsd
 */
#define NFSSVC_MAXVERS		3

/*
 * Maximum blocksizes supported by daemon under various circumstances.
 */
#define NFSSVC_MAXBLKSIZE	RPCSVC_MAXPAYLOAD
/* NFSv2 is limited by the protocol specification, see RFC 1094 */
#define NFSSVC_MAXBLKSIZE_V2	(8*1024)


#include <linux/sunrpc/msg_prot.h>

/*
 * Largest number of bytes we need to allocate for an NFS
 * call or reply.  Used to control buffer sizes.  We use
 * the length of v3 WRITE, READDIR and READDIR replies
 * which are an RPC header, up to 26 XDR units of reply
 * data, and some page data.
 *
 * Note that accuracy here doesn't matter too much as the
 * size is rounded up to a page size when allocating space.
 */
#define NFSD_BUFSIZE		((RPC_MAX_HEADER_WITH_AUTH+26)*XDR_UNIT + NFSSVC_MAXBLKSIZE)

# define NFSSVC_XDRSIZE		NFS2_SVC_XDRSIZE