• 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
  

  
  /*
   * 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 3.19 of the Linux man-pages project. A description of the project, and information about reporting bugs, can be found at http://www.kernel.org/doc/man-pages/.

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