{"id":1580,"date":"2012-03-27T15:16:55","date_gmt":"2012-03-27T06:16:55","guid":{"rendered":"http:\/\/peta.okechan.net\/blog\/?p=1580"},"modified":"2012-03-27T15:16:55","modified_gmt":"2012-03-27T06:16:55","slug":"xv6-53-chapter-5-file-system","status":"publish","type":"post","link":"https:\/\/peta.okechan.net\/blog\/archives\/1580","title":{"rendered":"[xv6 #53] Chapter 5 – File system"},"content":{"rendered":"

\u30c6\u30ad\u30b9\u30c8\u306e63\u30da\u30fc\u30b8<\/p>\n

\u672c\u6587<\/h3>\n

\u30d5\u30a1\u30a4\u30eb\u30b7\u30b9\u30c6\u30e0\u306e\u76ee\u7684\u306f\u3001\u30c7\u30fc\u30bf\u3092\u6574\u7406\u3057\u4fdd\u7ba1\u3059\u308b\u3053\u3068\u3067\u3042\u308b\u3002
\n\u30d5\u30a1\u30a4\u30eb\u30b7\u30b9\u30c6\u30e0\u306f\u4e00\u822c\u7684\u306b\u3001\u518d\u8d77\u52d5\u3057\u305f\u5f8c\u3082\u30c7\u30fc\u30bf\u304c\u6b8b\u308b\u3088\u3046\u306a\u6c38\u7d9a\u6027\u3092\u3082\u3063\u3066\u3001\u30e6\u30fc\u30b6\u3084\u30a2\u30d7\u30ea\u30b1\u30fc\u30b7\u30e7\u30f3\u9593\u306b\u304a\u3051\u308b\u30c7\u30fc\u30bf\u306e\u5171\u6709\u3092\u30b5\u30dd\u30fc\u30c8\u3059\u308b<\/p>\n

xv6\u306e\u30d5\u30a1\u30a4\u30eb\u30b7\u30b9\u30c6\u30e0\u306f\u3001Unix\u30e9\u30a4\u30af\u306a\u30d5\u30a1\u30a4\u30eb\u30fb\u30c7\u30a3\u30ec\u30af\u30c8\u30ea\u30fb\u30d1\u30b9\u540d\uff08\u7b2c0\u7ae0\u3092\u53c2\u7167\uff09\u3092\u63d0\u4f9b\u3057\u3001\u305d\u306e\u30c7\u30fc\u30bf\u3092IDE\u30c7\u30a3\u30b9\u30af\u4e0a\u3067\u6c38\u7d9a\u7684\u306b\u4fdd\u7ba1\u3059\u308b\uff08\u7b2c2\u7ae0\u3092\u53c2\u7167\uff09\u3002
\nxv6\u306e\u30d5\u30a1\u30a4\u30eb\u30b7\u30b9\u30c6\u30e0\u306f\u3001\u6b21\u306e\u3044\u304f\u3064\u304b\u306e\u6311\u6226\u306b\u53d6\u308a\u7d44\u3093\u3067\u3044\u308b\u3002<\/p>\n

\u30fb\u30d5\u30a1\u30a4\u30eb\u30b7\u30b9\u30c6\u30e0\u306f\u3001\u540d\u524d\u4ed8\u3051\u3089\u308c\u305f\u30c7\u30a3\u30ec\u30af\u30c8\u30ea\u3068\u30d5\u30a1\u30a4\u30eb\u306e\u30c4\u30ea\u30fc\u3092\u8868\u73fe\u3057\u3001\u305d\u308c\u305e\u308c\u306e\u30d5\u30a1\u30a4\u30eb\u306e\u5185\u5bb9\u3092\u4fdd\u6301\u3059\u308b\u30d6\u30ed\u30c3\u30af\u306e\u540c\u4e00\u6027\u3092\u8a18\u9332\u3057\u3001\u30c7\u30a3\u30b9\u30af\u306e\u3069\u306e\u9818\u57df\u304c\u7a7a\u3044\u3066\u308b\u304b\u3092\u8a18\u9332\u3059\u308b\u305f\u3081\u306b\u3001\u30c7\u30a3\u30b9\u30af\u4e0a\u306e\u30c7\u30fc\u30bf\u69cb\u9020\u3092\u5fc5\u8981\u3068\u3059\u308b\u3002<\/p>\n

\u30fb\u30d5\u30a1\u30a4\u30eb\u30b7\u30b9\u30c6\u30e0\u306f\u3001\u30af\u30e9\u30c3\u30b7\u30e5\u30ea\u30ab\u30d0\u30ea\u6a5f\u80fd\u3092\u30b5\u30dd\u30fc\u30c8\u3057\u306a\u3051\u308c\u3070\u306a\u3089\u306a\u3044\u3002
\n\u305d\u308c\u306f\u3001\u3082\u3057\u30af\u30e9\u30c3\u30b7\u30e5\u3057\u305f\u5834\u5408\uff08\u4f8b\u3048\u3070\u6025\u306a\u96fb\u6e90\u65ad\u306a\u3069\uff09\u3001\u518d\u8d77\u52d5\u5f8c\u3082\u6b63\u3057\u304f\u52d5\u4f5c\u3057\u306a\u3051\u308c\u3070\u306a\u3089\u306a\u3044\u3002
\n\u30af\u30e9\u30c3\u30b7\u30e5\u304c\u3001\u30c7\u30a3\u30b9\u30af\u4e0a\u306e\u30c7\u30fc\u30bf\u69cb\u9020\u306e\u4e00\u9023\u306e\u66f4\u65b0\u4e2d\u306b\u767a\u751f\u3057\u3001\u77db\u76fe\u3057\u305f\u30c7\u30fc\u30bf\u3092\u6b8b\u3057\u3066\u3057\u307e\u3046\u4e8b\u304c\u30ea\u30b9\u30af\u3067\u3042\u308b\uff08\u4f8b\u3048\u3070\u3001\u3042\u308b\u30d6\u30ed\u30c3\u30af\u304c\u30d5\u30a1\u30a4\u30eb\u3067\u4f7f\u308f\u308c\u3066\u308b\u306e\u306b\u3001\u7a7a\u304d\u9818\u57df\u3068\u3057\u3066\u30de\u30fc\u30af\u3055\u308c\u3066\u3057\u307e\u3063\u3066\u3044\u308b\u72b6\u614b\uff09\u3002<\/p>\n

\u30fb\u8907\u6570\u306e\u30d7\u30ed\u30bb\u30b9\u304c\u3001\u540c\u6642\u306b\u30d5\u30a1\u30a4\u30eb\u30b7\u30b9\u30c6\u30e0\u4e0a\u306e\u30c7\u30fc\u30bf\u3092\u64cd\u4f5c\u3059\u308b\u53ef\u80fd\u6027\u304c\u3042\u308a\u3001\u30a4\u30f3\u30d0\u30ea\u30a2\u30f3\u30c8\u3092\u4fdd\u3064\u305f\u3081\u306b\u8abf\u6574\u3057\u306a\u3051\u308c\u3070\u306a\u3089\u306a\u3044\u3002<\/p>\n

\u30fb\u30c7\u30a3\u30b9\u30af\u3078\u306e\u30a2\u30af\u30bb\u30b9\u306f\u3001\u30e1\u30e2\u30ea\u3078\u306e\u30a2\u30af\u30bb\u30b9\u306b\u6bd4\u3079\u3066\u6841\u9055\u3044\u306b\u9045\u3044\u306e\u3067\u3001\u30d5\u30a1\u30a4\u30eb\u30b7\u30b9\u30c6\u30e0\u306f\u3088\u304f\u4f7f\u308f\u308c\u308b\u30d6\u30ed\u30c3\u30af\u306e\u30e1\u30e2\u30ea\u4e0a\u306e\u30ad\u30e3\u30c3\u30b7\u30e5\u3092\u4fdd\u305f\u306a\u3051\u308c\u3070\u306a\u3089\u306a\u3044\u3002<\/p>\n

\u3053\u306e\u7ae0\u3067\u306f\u3001xv6\u304c\u4ee5\u4e0a\u306e\u6311\u6226\u306b\u3069\u3046\u53d6\u308a\u7d44\u3093\u3067\u3044\u308b\u304b\u306b\u3064\u3044\u3066\u8aac\u660e\u3059\u308b\u3002<\/p>\n

\u611f\u60f3<\/h3>\n

\u3084\u3063\u3068\u30d5\u30a1\u30a4\u30eb\u30b7\u30b9\u30c6\u30e0\u306e\u7ae0\u306b\u5165\u308a\u307e\u3057\u305f\u3002
\n\u6700\u5f8c\u306e\u7ae0\u3067\u3059\u3002
\n\u5b9f\u306f\u3053\u306e\u7ae0\u304c\u4e00\u756a\u8208\u5473\u304c\u3042\u308a\u307e\u3059\u3002
\n\u3053\u306e\u7ae0\u306e\u5f8c\u3082\u3001Appendix A\uff08PC\u30cf\u30fc\u30c9\u30a6\u30a7\u30a2\u306b\u3064\u3044\u3066\uff09\u3068Appendix B\uff08\u30d6\u30fc\u30c8\u30ed\u30fc\u30c0\u306b\u3064\u3044\u3066\uff09\u3068\u3044\u3046\u4ed8\u9332\u304c\u3042\u308a\u307e\u3059\u304c\u3001\u305d\u3053\u3082\u8aad\u3080\u304b\u3069\u3046\u304b\u3001\u30d6\u30ed\u30b0\u306b\u8f09\u305b\u308b\u304b\u3069\u3046\u304b\u306f\u672a\u5b9a\u3067\u3059\u3002<\/p>\n

\u30af\u30e9\u30c3\u30b7\u30e5\u30ea\u30ab\u30d0\u30ea\u5bfe\u5fdc\u3068\u3044\u3046\u3053\u3068\u3067\u4e00\u77ac\u30de\u30b8\u304b\uff01\uff1f\u3068\u601d\u3044\u307e\u3057\u305f\u304c\u3001\u660e\u793a\u7684\u306b\u305d\u306e\u6a5f\u80fd\u3092\u5b9f\u88c5\u3059\u308b\u308f\u3051\u3067\u306f\u306a\u304f\u3066\u3001\u5358\u306b\u3069\u306e\u30bf\u30a4\u30df\u30f3\u30b0\u3067\u51e6\u7406\u304c\u6b62\u307e\u3063\u3066\u3082\u5927\u304d\u306a\u554f\u984c\u306b\u306a\u3089\u306a\u3044\u3088\u3046\u306a\u30c7\u30fc\u30bf\u69cb\u9020\u3068\u51e6\u7406\u306e\u9806\u756a\u3092\u63a1\u7528\u3059\u308b\u3060\u3051\u306a\u306e\u304b\u3082\u3067\u3059\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"

\u30c6\u30ad\u30b9\u30c8\u306e63\u30da\u30fc\u30b8<\/p>\n

\u672c\u6587<\/h3>\n

\u30d5\u30a1\u30a4\u30eb\u30b7\u30b9\u30c6\u30e0\u306e\u76ee\u7684\u306f\u3001\u30c7\u30fc\u30bf\u3092\u6574\u7406\u3057\u4fdd\u7ba1\u3059\u308b\u3053\u3068\u3067\u3042\u308b\u3002
\n\u30d5\u30a1\u30a4\u30eb\u30b7\u30b9\u30c6\u30e0\u306f\u4e00\u822c\u7684\u306b\u3001\u518d\u8d77\u52d5\u3057\u305f\u5f8c\u3082\u30c7\u30fc\u30bf\u304c\u6b8b\u308b\u3088\u3046\u306a\u6c38\u7d9a\u6027\u3092\u3082\u3063\u3066\u3001\u30e6\u30fc\u30b6\u3084\u30a2\u30d7\u30ea\u30b1\u30fc\u30b7\u30e7\u30f3\u9593\u306b\u304a\u3051\u308b\u30c7\u30fc\u30bf\u306e\u5171\u6709\u3092\u30b5\u30dd\u30fc\u30c8\u3059\u308b<\/p>\n

xv6\u306e\u30d5\u30a1\u30a4\u30eb\u30b7\u30b9\u30c6\u30e0\u306f\u3001Unix\u30e9\u30a4\u30af\u306a\u30d5\u30a1\u30a4\u30eb\u30fb\u30c7\u30a3\u30ec\u30af\u30c8\u30ea\u30fb\u30d1\u30b9\u540d\uff08\u7b2c0\u7ae0\u3092\u53c2\u7167\uff09\u3092\u63d0\u4f9b\u3057\u3001\u305d\u306e\u30c7\u30fc\u30bf\u3092IDE\u30c7\u30a3\u30b9\u30af\u4e0a\u3067\u6c38\u7d9a\u7684\u306b\u4fdd\u7ba1\u3059\u308b\uff08\u7b2c2\u7ae0\u3092\u53c2\u7167\uff09\u3002
\nxv6\u306e\u30d5\u30a1\u30a4\u30eb\u30b7\u30b9\u30c6\u30e0\u306f\u3001\u6b21\u306e\u3044\u304f\u3064\u304b\u306e\u6311\u6226\u306b\u53d6\u308a\u7d44\u3093\u3067\u3044\u308b\u3002<\/p>\n

\u30fb\u30d5\u30a1\u30a4\u30eb\u30b7\u30b9\u30c6\u30e0\u306f\u3001\u540d\u524d\u4ed8\u3051\u3089\u308c\u305f\u30c7\u30a3\u30ec\u30af\u30c8\u30ea\u3068\u30d5\u30a1\u30a4\u30eb\u306e\u30c4\u30ea\u30fc\u3092\u8868\u73fe\u3057\u3001\u305d\u308c\u305e\u308c\u306e\u30d5\u30a1\u30a4\u30eb\u306e\u5185\u5bb9\u3092\u4fdd\u6301\u3059\u308b\u30d6\u30ed\u30c3\u30af\u306e\u540c\u4e00\u6027\u3092\u8a18\u9332\u3057\u3001\u30c7\u30a3\u30b9\u30af\u306e\u3069\u306e\u9818\u57df\u304c\u7a7a\u3044\u3066\u308b\u304b\u3092\u8a18\u9332\u3059\u308b\u305f\u3081\u306b\u3001\u30c7\u30a3\u30b9\u30af\u4e0a\u306e\u30c7\u30fc\u30bf\u69cb\u9020\u3092\u5fc5\u8981\u3068\u3059\u308b\u3002<\/p>\n

\u30fb\u30d5\u30a1\u30a4\u30eb\u30b7\u30b9\u30c6\u30e0\u306f\u3001\u30af\u30e9\u30c3\u30b7\u30e5\u30ea\u30ab\u30d0\u30ea\u6a5f\u80fd\u3092\u30b5\u30dd\u30fc\u30c8\u3057\u306a\u3051\u308c\u3070\u306a\u3089\u306a\u3044\u3002
\n\u305d\u308c\u306f\u3001\u3082\u3057\u30af\u30e9\u30c3\u30b7\u30e5\u3057\u305f\u5834\u5408\uff08\u4f8b\u3048\u3070\u6025\u306a\u96fb\u6e90\u65ad\u306a\u3069\uff09\u3001\u518d\u8d77\u52d5\u5f8c\u3082\u6b63\u3057\u304f\u52d5\u4f5c\u3057\u306a\u3051\u308c\u3070\u306a\u3089\u306a\u3044\u3002
\n\u30af\u30e9\u30c3\u30b7\u30e5\u304c\u3001\u30c7\u30a3\u30b9\u30af\u4e0a\u306e\u30c7\u30fc\u30bf\u69cb\u9020\u306e\u4e00\u9023\u306e\u66f4\u65b0\u4e2d\u306b\u767a\u751f\u3057\u3001\u77db\u76fe\u3057\u305f\u30c7\u30fc\u30bf\u3092\u6b8b\u3057\u3066\u3057\u307e\u3046\u4e8b\u304c\u30ea\u30b9\u30af\u3067\u3042\u308b\uff08\u4f8b\u3048\u3070\u3001\u3042\u308b\u30d6\u30ed\u30c3\u30af\u304c\u30d5\u30a1\u30a4\u30eb\u3067\u4f7f\u308f\u308c\u3066\u308b\u306e\u306b\u3001\u7a7a\u304d\u9818\u57df\u3068\u3057\u3066\u30de\u30fc\u30af\u3055\u308c\u3066\u3057\u307e\u3063\u3066\u3044\u308b\u72b6\u614b\uff09\u3002<\/p>\n

\u30fb\u8907\u6570\u306e\u30d7\u30ed\u30bb\u30b9\u304c\u3001\u540c\u6642\u306b\u30d5\u30a1\u30a4\u30eb\u30b7\u30b9\u30c6\u30e0\u4e0a\u306e\u30c7\u30fc\u30bf\u3092\u64cd\u4f5c\u3059\u308b\u53ef\u80fd\u6027\u304c\u3042\u308a\u3001\u30a4\u30f3\u30d0\u30ea\u30a2\u30f3\u30c8\u3092\u4fdd\u3064\u305f\u3081\u306b\u8abf\u6574\u3057\u306a\u3051\u308c\u3070\u306a\u3089\u306a\u3044\u3002<\/p>\n

\u30fb\u30c7\u30a3\u30b9\u30af\u3078\u306e\u30a2\u30af\u30bb\u30b9\u306f\u3001\u30e1\u30e2\u30ea\u3078\u306e\u30a2\u30af\u30bb\u30b9\u306b\u6bd4\u3079\u3066\u6841\u9055\u3044\u306b\u9045\u3044\u306e\u3067\u3001\u30d5\u30a1\u30a4\u30eb\u30b7\u30b9\u30c6\u30e0\u306f\u3088\u304f\u4f7f\u308f\u308c\u308b\u30d6\u30ed\u30c3\u30af\u306e\u30e1\u30e2\u30ea\u4e0a\u306e\u30ad\u30e3\u30c3\u30b7\u30e5\u3092\u4fdd\u305f\u306a\u3051\u308c\u3070\u306a\u3089\u306a\u3044\u3002<\/p>\n

\u3053\u306e\u7ae0\u3067\u306f\u3001xv6\u304c\u4ee5\u4e0a\u306e\u6311\u6226\u306b\u3069\u3046\u53d6\u308a\u7d44\u3093\u3067\u3044\u308b\u304b\u306b\u3064\u3044\u3066\u8aac\u660e\u3059\u308b\u3002<\/p>\n

\u611f\u60f3<\/h3>\n

\u3084\u3063\u3068\u30d5\u30a1\u30a4\u30eb\u30b7\u30b9\u30c6\u30e0\u306e\u7ae0\u306b\u5165\u308a\u307e\u3057\u305f\u3002
\n\u6700\u5f8c\u306e\u7ae0\u3067\u3059\u3002
\n\u5b9f\u306f\u3053\u306e\u7ae0\u304c\u4e00\u756a\u8208\u5473\u304c\u3042\u308a\u307e\u3059\u3002
\n\u3053\u306e\u7ae0\u306e\u5f8c\u3082\u3001Appendix A\uff08PC\u30cf\u30fc\u30c9\u30a6\u30a7\u30a2\u306b\u3064\u3044\u3066\uff09\u3068Appendix B\uff08\u30d6\u30fc\u30c8\u30ed\u30fc\u30c0\u306b\u3064\u3044\u3066\uff09\u3068\u3044\u3046\u4ed8\u9332\u304c\u3042\u308a\u307e\u3059\u304c\u3001\u305d\u3053\u3082\u8aad\u3080\u304b\u3069\u3046\u304b\u3001\u30d6\u30ed\u30b0\u306b\u8f09\u305b\u308b\u304b\u3069\u3046\u304b\u306f\u672a\u5b9a\u3067\u3059\u3002<\/p>\n

\u30af\u30e9\u30c3\u30b7\u30e5\u30ea\u30ab\u30d0\u30ea\u5bfe\u5fdc\u3068\u3044\u3046\u3053\u3068\u3067\u4e00\u77ac\u30de\u30b8\u304b\uff01\uff1f\u3068\u601d\u3044\u307e\u3057\u305f\u304c\u3001\u660e\u793a\u7684\u306b\u305d\u306e\u6a5f\u80fd\u3092\u5b9f\u88c5\u3059\u308b\u308f\u3051\u3067\u306f\u306a\u304f\u3066\u3001\u5358\u306b\u3069\u306e\u30bf\u30a4\u30df\u30f3\u30b0\u3067\u51e6\u7406\u304c\u6b62\u307e\u3063\u3066\u3082\u5927\u304d\u306a\u554f\u984c\u306b\u306a\u3089\u306a\u3044\u3088\u3046\u306a\u30c7\u30fc\u30bf\u69cb\u9020\u3068\u51e6\u7406\u306e\u9806\u756a\u3092\u63a1\u7528\u3059\u308b\u3060\u3051\u306a\u306e\u304b\u3082\u3067\u3059\u3002<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[32],"tags":[405],"class_list":["post-1580","post","type-post","status-publish","format-standard","hentry","category-tech","tag-xv6"],"_links":{"self":[{"href":"https:\/\/peta.okechan.net\/blog\/wp-json\/wp\/v2\/posts\/1580","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/peta.okechan.net\/blog\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/peta.okechan.net\/blog\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/peta.okechan.net\/blog\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/peta.okechan.net\/blog\/wp-json\/wp\/v2\/comments?post=1580"}],"version-history":[{"count":0,"href":"https:\/\/peta.okechan.net\/blog\/wp-json\/wp\/v2\/posts\/1580\/revisions"}],"wp:attachment":[{"href":"https:\/\/peta.okechan.net\/blog\/wp-json\/wp\/v2\/media?parent=1580"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/peta.okechan.net\/blog\/wp-json\/wp\/v2\/categories?post=1580"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/peta.okechan.net\/blog\/wp-json\/wp\/v2\/tags?post=1580"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}