FreeBSD/Linux Kernel Cross Reference
sys/contrib/openzfs/include/os/linux/spl/sys/zone.h

     /*
      *  Copyright (C) 2007-2010 Lawrence Livermore National Security, LLC.
      *  Copyright (C) 2007 The Regents of the University of California.
      *  Produced at Lawrence Livermore National Laboratory (cf, DISCLAIMER).
      *  Written by Brian Behlendorf <behlendorf1@llnl.gov>.
      *  UCRL-CODE-235197
      *
      *  This file is part of the SPL, Solaris Porting Layer.
      *
     *  The SPL is free software; you can redistribute it and/or modify it
     *  under the terms of the GNU General Public License as published by the
     *  Free Software Foundation; either version 2 of the License, or (at your
     *  option) any later version.
     *
     *  The SPL is distributed in the hope that it will be useful, but WITHOUT
     *  ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
     *  FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
     *  for more details.
     *
     *  You should have received a copy of the GNU General Public License along
     *  with the SPL.  If not, see <http://www.gnu.org/licenses/>.
     */
    
    #ifndef _SPL_ZONE_H
    #define _SPL_ZONE_H
    
    #include <sys/byteorder.h>
    #include <sys/cred.h>
    
    #include <linux/cred.h>
    #include <linux/user_namespace.h>
    
    /*
     * Attach the given dataset to the given user namespace.
     */
    extern int zone_dataset_attach(cred_t *, const char *, int);
    
    /*
     * Detach the given dataset from the given user namespace.
     */
    extern int zone_dataset_detach(cred_t *, const char *, int);
    
    /*
     * Returns true if the named pool/dataset is visible in the current zone.
     */
    extern int zone_dataset_visible(const char *dataset, int *write);
    
    int spl_zone_init(void);
    void spl_zone_fini(void);
    
    extern unsigned int crgetzoneid(const cred_t *);
    extern unsigned int global_zoneid(void);
    extern boolean_t inglobalzone(proc_t *);
    
    #define INGLOBALZONE(x) inglobalzone(x)
    #define GLOBAL_ZONEID   global_zoneid()
    
    #endif /* SPL_ZONE_H */

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