Merge branch 'cfq-2.6.33' into for-2.6.33
[linux-2.6/next.git] / include / linux / nfsd / const.h
blob323f8cfa060a4c74ec0d23366b1becc8cd9a7e16
1 /*
2 * include/linux/nfsd/const.h
4 * Various constants related to NFS.
6 * Copyright (C) 1995-1997 Olaf Kirch <okir@monad.swb.de>
7 */
9 #ifndef _LINUX_NFSD_CONST_H
10 #define _LINUX_NFSD_CONST_H
12 #include <linux/nfs.h>
13 #include <linux/nfs2.h>
14 #include <linux/nfs3.h>
15 #include <linux/nfs4.h>
18 * Maximum protocol version supported by knfsd
20 #define NFSSVC_MAXVERS 3
23 * Maximum blocksizes supported by daemon under various circumstances.
25 #define NFSSVC_MAXBLKSIZE RPCSVC_MAXPAYLOAD
26 /* NFSv2 is limited by the protocol specification, see RFC 1094 */
27 #define NFSSVC_MAXBLKSIZE_V2 (8*1024)
29 #ifdef __KERNEL__
31 #include <linux/sunrpc/msg_prot.h>
34 * Largest number of bytes we need to allocate for an NFS
35 * call or reply. Used to control buffer sizes. We use
36 * the length of v3 WRITE, READDIR and READDIR replies
37 * which are an RPC header, up to 26 XDR units of reply
38 * data, and some page data.
40 * Note that accuracy here doesn't matter too much as the
41 * size is rounded up to a page size when allocating space.
43 #define NFSD_BUFSIZE ((RPC_MAX_HEADER_WITH_AUTH+26)*XDR_UNIT + NFSSVC_MAXBLKSIZE)
45 #ifdef CONFIG_NFSD_V4
46 # define NFSSVC_XDRSIZE NFS4_SVC_XDRSIZE
47 #elif defined(CONFIG_NFSD_V3)
48 # define NFSSVC_XDRSIZE NFS3_SVC_XDRSIZE
49 #else
50 # define NFSSVC_XDRSIZE NFS2_SVC_XDRSIZE
51 #endif
53 #endif /* __KERNEL__ */
55 #endif /* _LINUX_NFSD_CONST_H */