ext4: Add new superblock fields reserved for the Next3 snapshot feature
Signed-off-by: "Theodore Ts'o" <tytso@mit.edu>
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@ -1002,7 +1002,13 @@ struct ext4_super_block {
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__u8 s_reserved_char_pad2;
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__u8 s_reserved_char_pad2;
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__le16 s_reserved_pad;
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__le16 s_reserved_pad;
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__le64 s_kbytes_written; /* nr of lifetime kilobytes written */
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__le64 s_kbytes_written; /* nr of lifetime kilobytes written */
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__u32 s_reserved[160]; /* Padding to the end of the block */
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__le32 s_snapshot_inum; /* Inode number of active snapshot */
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__le32 s_snapshot_id; /* sequential ID of active snapshot */
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__le64 s_snapshot_r_blocks_count; /* reserved blocks for active
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snapshot's future use */
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__le32 s_snapshot_list; /* inode number of the head of the
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on-disk snapshot list */
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__u32 s_reserved[155]; /* Padding to the end of the block */
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};
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};
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#ifdef __KERNEL__
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#ifdef __KERNEL__
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