%B

          --- old/usr/src/common/zfs/zfeature_common.h
          +++ new/usr/src/common/zfs/zfeature_common.h

   1    1  /*
   2    2   * CDDL HEADER START
   3    3   *
   4    4   * The contents of this file are subject to the terms of the
   5    5   * Common Development and Distribution License (the "License").
   6    6   * You may not use this file except in compliance with the License.
   7    7   *
   8    8   * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
   9    9   * or http://www.opensolaris.org/os/licensing.
  10   10   * See the License for the specific language governing permissions
  11   11   * and limitations under the License.
  12   12   *
  13   13   * When distributing Covered Code, include this CDDL HEADER in each

  14   14   * file and include the License file at usr/src/OPENSOLARIS.LICENSE.
  15   15   * If applicable, add the following below this CDDL HEADER, with the
  16   16   * fields enclosed by brackets "[]" replaced with your own identifying
  17   17   * information: Portions Copyright [yyyy] [name of copyright owner]
  18   18   *
  19   19   * CDDL HEADER END
  20   20   */
  21   21  
  22   22  /*
  23   23   * Copyright (c) 2012 by Delphix. All rights reserved.
       24 + * Copyright (c) 2013 by Saso Kiselkov. All rights reserved.
  24   25   */
  25   26  
  26   27  #ifndef _ZFEATURE_COMMON_H
  27   28  #define _ZFEATURE_COMMON_H
  28   29  
  29   30  #include <sys/fs/zfs.h>
  30   31  #include <sys/inttypes.h>
  31   32  #include <sys/types.h>
  32   33  
  33   34  #ifdef  __cplusplus

  34   35  extern "C" {
  35   36  #endif
  36   37  
  37   38  struct zfeature_info;
  38   39  
  39   40  typedef struct zfeature_info {
  40   41          const char *fi_uname;   /* User-facing feature name */
  41   42          const char *fi_guid;    /* On-disk feature identifier */
  42   43          const char *fi_desc;    /* Feature description */
  43   44          boolean_t fi_can_readonly; /* Can open pool readonly w/o support? */
  44   45          boolean_t fi_mos;       /* Is the feature necessary to read the MOS? */

  45   46          struct zfeature_info **fi_depends; /* array; null terminated */
  46   47  } zfeature_info_t;
  47   48  
  48   49  typedef int (zfeature_func_t)(zfeature_info_t *fi, void *arg);
  49   50  
  50   51  #define ZFS_FEATURE_DEBUG
  51   52  
  52   53  enum spa_feature {
  53   54          SPA_FEATURE_ASYNC_DESTROY,
  54   55          SPA_FEATURE_EMPTY_BPOBJ,
       56 +        SPA_FEATURE_LZ4_COMPRESS,
  55   57          SPA_FEATURES
  56   58  } spa_feature_t;
  57   59  
  58   60  extern zfeature_info_t spa_feature_table[SPA_FEATURES];
  59   61  
  60   62  extern boolean_t zfeature_is_valid_guid(const char *);
  61   63  
  62   64  extern boolean_t zfeature_is_supported(const char *);
  63   65  extern int zfeature_lookup_guid(const char *, zfeature_info_t **res);
  64   66  extern int zfeature_lookup_name(const char *, zfeature_info_t **res);
  65   67  
  66   68  extern void zpool_feature_init(void);
  67   69  
  68   70  #ifdef  __cplusplus
  69   71  }
  70   72  #endif
  71   73  
  72   74  #endif  /* _ZFEATURE_COMMON_H */
    

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