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CentOS 7.0 - man page for nfsservctl (centos section 2)

NFSSERVCTL(2)				      Linux Programmer's Manual 				NFSSERVCTL(2)

NAME
nfsservctl - syscall interface to kernel nfs daemon
SYNOPSIS
#include <linux/nfsd/syscall.h> long nfsservctl(int cmd, struct nfsctl_arg *argp, union nfsctl_res *resp);
DESCRIPTION
Note: Since Linux 3.1, this system call no longer exists. /* * These are the commands understood by nfsctl(). */ #define NFSCTL_SVC 0 /* This is a server process. */ #define NFSCTL_ADDCLIENT 1 /* Add an NFS client. */ #define NFSCTL_DELCLIENT 2 /* Remove an NFS client. */ #define NFSCTL_EXPORT 3 /* export a file system. */ #define NFSCTL_UNEXPORT 4 /* unexport a file system. */ #define NFSCTL_UGIDUPDATE 5 /* update a client's UID/GID map. */ #define NFSCTL_GETFH 6 /* get an fh (used by mountd) */ struct nfsctl_arg { int ca_version; /* safeguard */ union { struct nfsctl_svc u_svc; struct nfsctl_client u_client; struct nfsctl_export u_export; struct nfsctl_uidmap u_umap; struct nfsctl_fhparm u_getfh; unsigned int u_debug; } u; } union nfsctl_res { struct knfs_fh cr_getfh; unsigned int cr_debug; };
RETURN VALUE
On success, zero is returned. On error, -1 is returned, and errno is set appropriately.
CONFORMING TO
This call is Linux-specific.
COLOPHON
This page is part of release 3.53 of the Linux man-pages project. A description of the project, and informa- tion about reporting bugs, can be found at http://www.kernel.org/doc/man-pages/. Linux 2012-03-05 NFSSERVCTL(2)


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