NTFS-3GドライバでUSNジャーナル（変更ログ）をサポート

文書がたくさん見つかりませんでした。米海軍+ ntfs-3g、しかし、以下でntfs-3gのソースコードをチェックしてください。include/ntfs-3g/layout.h、次を見つけました。

/**
 * struct NTFS_RECORD -
 *
 * The Update Sequence Array (usa) is an array of the u16 values which belong
 * to the end of each sector protected by the update sequence record in which
 * this array is contained. Note that the first entry is the Update Sequence
 * Number (usn), a cyclic counter of how many times the protected record has
 * been written to disk. The values 0 and -1 (ie. 0xffff) are not used. All
 * last u16's of each sector have to be equal to the usn (during reading) or
 * are set to it (during writing). If they are not, an incomplete multi sector
 * transfer has occurred when the data was written.
 * The maximum size for the update sequence array is fixed to:
 *    maximum size = usa_ofs + (usa_count * 2) = 510 bytes
 * The 510 bytes comes from the fact that the last u16 in the array has to
 * (obviously) finish before the last u16 of the first 512-byte sector.
 * This formula can be used as a consistency check in that usa_ofs +
 * (usa_count * 2) has to be less than or equal to 510.
 */
typedef struct {
      NTFS_RECORD_TYPES magic;/* A four-byte magic identifying the
                           record type and/or status. */
      u16 usa_ofs;            /* Offset to the Update Sequence Array (usa)
                           from the start of the ntfs record. */
      u16 usa_count;          /* Number of u16 sized entries in the usa
                           including the Update Sequence Number (usn),
                           thus the number of fixups is the usa_count
                           minus 1. */
} __attribute__((__packed__)) NTFS_RECORD;

（参照：STANDARD_INFORMATION構造体のusnフィールド）

どうやら米海軍を利用しているようですが、適切な入手方法がわかりません。まず、NTFS_RECORDの使い方を理解し、そこからAPIを見つけようとします。