fsfeatures.h

   1 /*
   2  * This program is free software; you can redistribute it and/or
   3  * modify it under the terms of the GNU General Public
   4  * License v2 as published by the Free Software Foundation.
   5  *
   6  * This program is distributed in the hope that it will be useful,
   7  * but WITHOUT ANY WARRANTY; without even the implied warranty of
   8  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
   9  * General Public License for more details.
  10  *
  11  * You should have received a copy of the GNU General Public
  12  * License along with this program; if not, write to the
  13  * Free Software Foundation, Inc., 59 Temple Place - Suite 330,
  14  * Boston, MA 021110-1307, USA.
  15  */
  16
  17 #ifndef __BTRFS_FSFEATURES_H__
  18 #define __BTRFS_FSFEATURES_H__
  19
  20 #include "kerncompat.h"
  21
  22 #define BTRFS_MKFS_DEFAULT_NODE_SIZE SZ_16K
  23 #define BTRFS_MKFS_DEFAULT_FEATURES                             \
  24                 (BTRFS_FEATURE_INCOMPAT_EXTENDED_IREF           \
  25                 | BTRFS_FEATURE_INCOMPAT_SKINNY_METADATA)
  26
  27 /*
  28  * Avoid multi-device features (RAID56) and mixed block groups
  29  */
  30 #define BTRFS_CONVERT_ALLOWED_FEATURES                          \
  31         (BTRFS_FEATURE_INCOMPAT_MIXED_BACKREF                   \
  32         | BTRFS_FEATURE_INCOMPAT_DEFAULT_SUBVOL                 \
  33         | BTRFS_FEATURE_INCOMPAT_COMPRESS_LZO                   \
  34         | BTRFS_FEATURE_INCOMPAT_COMPRESS_LZOv2                 \
  35         | BTRFS_FEATURE_INCOMPAT_BIG_METADATA                   \
  36         | BTRFS_FEATURE_INCOMPAT_EXTENDED_IREF                  \
  37         | BTRFS_FEATURE_INCOMPAT_SKINNY_METADATA                \
  38         | BTRFS_FEATURE_INCOMPAT_NO_HOLES)
  39
  40 #define BTRFS_FEATURE_LIST_ALL          (1ULL << 63)
  41
  42 void btrfs_list_all_fs_features(u64 mask_disallowed);
  43 char* btrfs_parse_fs_features(char *namelist, u64 *flags);
  44 void btrfs_process_fs_features(u64 flags);
  45 void btrfs_parse_features_to_string(char *buf, u64 flags);
  46 void print_kernel_version(FILE *stream, u32 version);
  47 u32 get_running_kernel_version(void);
  48 int btrfs_check_nodesize(u32 nodesize, u32 sectorsize, u64 features);
  49
  50 #endif