mirror of
https://github.com/team-infusion-developers/android_kernel_samsung_msm8976.git
synced 2024-10-04 18:53:05 +00:00
7adae489fe
The limit over UDP remains at 32K. Also, make some of the apparently arbitrary sizing constants clearer. The biggest change here involves replacing NFSSVC_MAXBLKSIZE by a function of the rqstp. This allows it to be different for different protocols (udp/tcp) and also allows it to depend on the servers declared sv_bufsiz. Note that we don't actually increase sv_bufsz for nfs yet. That comes next. Signed-off-by: Greg Banks <gnb@melbourne.sgi.com> Signed-off-by: Neil Brown <neilb@suse.de> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
58 lines
1.4 KiB
C
58 lines
1.4 KiB
C
/*
|
|
* include/linux/nfsd/const.h
|
|
*
|
|
* Various constants related to NFS.
|
|
*
|
|
* Copyright (C) 1995-1997 Olaf Kirch <okir@monad.swb.de>
|
|
*/
|
|
|
|
#ifndef _LINUX_NFSD_CONST_H
|
|
#define _LINUX_NFSD_CONST_H
|
|
|
|
#include <linux/nfs.h>
|
|
#include <linux/nfs2.h>
|
|
#include <linux/nfs3.h>
|
|
#include <linux/nfs4.h>
|
|
#include <linux/sunrpc/msg_prot.h>
|
|
|
|
/*
|
|
* Maximum protocol version supported by knfsd
|
|
*/
|
|
#define NFSSVC_MAXVERS 3
|
|
|
|
/*
|
|
* Maximum blocksize supported by daemon currently at 32K
|
|
*/
|
|
#define NFSSVC_MAXBLKSIZE (32*1024)
|
|
/* NFSv2 is limited by the protocol specification, see RFC 1094 */
|
|
#define NFSSVC_MAXBLKSIZE_V2 (8*1024)
|
|
|
|
#ifdef __KERNEL__
|
|
|
|
#ifndef NFS_SUPER_MAGIC
|
|
# define NFS_SUPER_MAGIC 0x6969
|
|
#endif
|
|
|
|
/*
|
|
* 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)
|
|
|
|
#ifdef CONFIG_NFSD_V4
|
|
# define NFSSVC_XDRSIZE NFS4_SVC_XDRSIZE
|
|
#elif defined(CONFIG_NFSD_V3)
|
|
# define NFSSVC_XDRSIZE NFS3_SVC_XDRSIZE
|
|
#else
|
|
# define NFSSVC_XDRSIZE NFS2_SVC_XDRSIZE
|
|
#endif
|
|
|
|
#endif /* __KERNEL__ */
|
|
|
|
#endif /* _LINUX_NFSD_CONST_H */
|