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   ext3    ( 5 )

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Поддержка ядра (Kernel support)

This section lists the file system driver (e.g., ext2, ext3,
       ext4) and upstream kernel version where a particular file system
       feature was supported.  Note that in some cases the feature was
       present in earlier kernel versions, but there were known, serious
       bugs.  In other cases the feature may still be considered in an
       experimental state.  Finally, note that some distributions may
       have backported features into older kernels; in particular the
       kernel versions in certain "enterprise distributions" can be
       extremely misleading.

       filetype            ext2, 2.2.0

       sparse_super        ext2, 2.2.0

       large_file          ext2, 2.2.0

       has_journal         ext3, 2.4.15

       ext_attr            ext2/ext3, 2.6.0

       dir_index           ext3, 2.6.0

       resize_inode        ext3, 2.6.10 (online resizing)

       64bit               ext4, 2.6.28

       dir_nlink           ext4, 2.6.28

       extent              ext4, 2.6.28

       extra_isize         ext4, 2.6.28

       flex_bg             ext4, 2.6.28

       huge_file           ext4, 2.6.28

       meta_bg             ext4, 2.6.28

       uninit_bg           ext4, 2.6.28

       mmp                 ext4, 3.0

       bigalloc            ext4, 3.2

       quota               ext4, 3.6

       inline_data         ext4, 3.8

       sparse_super2       ext4, 3.16

       metadata_csum       ext4, 3.18

       encrypt             ext4, 4.1

       metadata_csum_seed  ext4, 4.4

       project             ext4, 4.5

       ea_inode            ext4, 4.13

       large_dir           ext4, 4.13

       casefold            ext4, 5.2

       verity              ext4, 5.4

       stable_inodes       ext4, 5.5