{"id":39157,"date":"2019-10-31T22:28:11","date_gmt":"2019-10-31T19:28:11","guid":{"rendered":"https:\/\/prohoster.info\/blog\/kompaniya-paragon-software-otkryla-kod-drajvera-s-realizatsiej-fs-exfat\/"},"modified":"2019-10-31T22:28:11","modified_gmt":"2019-10-31T19:28:11","slug":"kompaniya-paragon-software-otkryla-kod-drajvera-s-realizatsiej-fs-exfat","status":"publish","type":"post","link":"https:\/\/prohoster.info\/cs\/blog\/news\/kompaniya-paragon-software-otkryla-kod-drajvera-s-realizatsiej-fs-exfat","title":{"rendered":"Spole\u010dnost Paragon Software otev\u0159ela zdrojov\u00fd k\u00f3d ovlada\u010de s implementac\u00ed souborov\u00e9ho syst\u00e9mu exFAT","gt_translate_keys":[{"key":"rendered","format":"text"}]},"content":{"rendered":"

Spole\u010dnost Paragon Software, dodavatel licencovan\u00fdch produkt\u016f Microsoft propriet\u00e1rn\u00ed ovlada\u010de<\/a><\/noindex> NTFS a exFAT pro Linux, publikovala<\/a><\/noindex> v mailing listu v\u00fdvoj\u00e1\u0159\u016f j\u00e1dra Linux
\npo\u010d\u00e1te\u010dn\u00ed implementaci nov\u00e9ho otev\u0159en\u00e9ho ovlada\u010de exFAT. K\u00f3d ovlada\u010de je otev\u0159en\u00fd pod licenc\u00ed GPLv2 a do\u010dasn\u011b omezen na provoz v re\u017eimu pouze pro \u010dten\u00ed. Verze ovlada\u010de s podporou re\u017eimu z\u00e1pisu je ve v\u00fdvoji, ale je\u0161t\u011b nen\u00ed p\u0159ipravena k publikaci. Patch pro za\u010dlen\u011bn\u00ed do j\u00e1dra Linux zaslal osobn\u011b Konstantin Komarov, zakladatel a \u0159editel spole\u010dnosti Paragon Software<\/a><\/noindex>.<\/p>\n

Spole\u010dnost Paragon Software uv\u00edtala<\/a><\/noindex> kroky Microsoftu ke zve\u0159ejn\u011bn\u00ed ve\u0159ejn\u00e9ho specifikac\u00ed<\/a><\/noindex> a k poskytnut\u00ed mo\u017enosti bezplatn\u00e9ho vyu\u017e\u00edv\u00e1n\u00ed patent\u016f na exFAT v Linuxu, a jako sv\u016fj p\u0159\u00edsp\u011bvek p\u0159ipravila otev\u0159en\u00fd ovlada\u010d exFAT pro j\u00e1dro Linux. Uv\u00e1d\u00ed se, \u017ee ovlada\u010d je vyhotoven v souladu s po\u017eadavky na p\u0159\u00edpravu k\u00f3du pro Linux a neobsahuje vazby na dal\u0161\u00ed API, co\u017e umo\u017e\u0148uje jeho za\u0159azen\u00ed do z\u00e1kladn\u00edho j\u00e1dra.<\/p>\n

P\u0159ipom\u00edn\u00e1me, \u017ee v srpnu byl do experiment\u00e1ln\u00ed sekce «staging» j\u00e1dra Linux 5.4 («drivers\/staging\/»), kam se umis\u0165uj\u00ed komponenty vy\u017eaduj\u00edc\u00ed \u00fapravy, ji\u017e p\u0159id\u00e1n<\/a><\/noindex> vyvinut\u00fd spole\u010dnost\u00ed Samsung otev\u0159en\u00fd ovlada\u010d exFAT. P\u0159itom p\u0159idan\u00fd ovlada\u010d je zalo\u017een na zastaral\u00e9m k\u00f3du (1.2.9), kter\u00fd vy\u017eaduje \u00fapravy a p\u0159izp\u016fsoben\u00ed po\u017eadavk\u016fm na vyhotoven\u00ed k\u00f3du pro j\u00e1dro. Pozd\u011bji byl pro j\u00e1dro
\nbyla navr\u017eena<\/a><\/noindex> aktualizovan\u00fd variant ovlada\u010de Samsung, p\u0159eveden\u00fd na v\u011btev «sdFAT» (2.2.0) a vykazuj\u00edc\u00ed zna\u010dn\u00fd n\u00e1r\u016fst v\u00fdkonu, ale tento ovlada\u010d zat\u00edm nebyl p\u0159ijat do j\u00e1dra Linux.<\/p>\n

Souborov\u00fd syst\u00e9m exFAT byl vytvo\u0159en Microsoftem za \u00fa\u010delem odstran\u011bn\u00ed omezen\u00ed FAT32 p\u0159i pou\u017e\u00edv\u00e1n\u00ed na flash pam\u011btech velk\u00e9ho objemu. Podpora souborov\u00e9ho syst\u00e9mu exFAT se objevila ve Windows Vista Service Pack 1 a Windows XP se Service Pack 2. Maxim\u00e1ln\u00ed velikost souboru byla ve srovn\u00e1n\u00ed s FAT32 roz\u0161\u00ed\u0159ena z 4 GB na 16 exabajt\u016f, bylo odstran\u011bno omezen\u00ed maxim\u00e1ln\u00ed velikosti odd\u00edlu na 32 GB, aby se sn\u00ed\u017eila fragmentace a zv\u00fd\u0161ila rychlost, byla zavedena bitov\u00e1 mapa voln\u00fdch blok\u016f, omezen\u00ed po\u010dtu soubor\u016f v jednom adres\u00e1\u0159i bylo zv\u00fd\u0161eno na 65 tis\u00edc, byla zaji\u0161t\u011bna mo\u017enost ukl\u00e1d\u00e1n\u00ed ACL. <\/p>\n

<\/a><\/noindex><\/p>\n

Zdroj: opennet.ru<\/a><\/p>","protected":false,"gt_translate_keys":[{"key":"rendered","format":"html"}]},"excerpt":{"rendered":"

\u041a\u043e\u043c\u043f\u0430\u043d\u0438\u044f Paragon Software, \u043f\u043e\u0441\u0442\u0430\u0432\u043b\u044f\u044e\u0449\u0430\u044f \u043b\u0438\u0446\u0435\u043d\u0437\u0438\u0440\u043e\u0432\u0430\u043d\u043d\u044b\u0435 \u0432 Microsoft \u043f\u0440\u043e\u043f\u0440\u0438\u0435\u0442\u0430\u0440\u043d\u044b\u0435 \u0434\u0440\u0430\u0439\u0432\u0435\u0440\u044b NTFS \u0438 exFAT \u0434\u043b\u044f Linux, \u043e\u043f\u0443\u0431\u043b\u0438\u043a\u043e\u0432\u0430\u043b\u0430 \u0432 \u0441\u043f\u0438\u0441\u043a\u0435 \u0440\u0430\u0441\u0441\u044b\u043b\u043a\u0438 \u0440\u0430\u0437\u0440\u0430\u0431\u043e\u0442\u0447\u0438\u043a\u043e\u0432 \u044f\u0434\u0440\u0430 Linux \u043d\u0430\u0447\u0430\u043b\u044c\u043d\u0443\u044e \u0440\u0435\u0430\u043b\u0438\u0437\u0430\u0446\u0438\u044e \u043d\u043e\u0432\u043e\u0433\u043e \u043e\u0442\u043a\u0440\u044b\u0442\u043e\u0433\u043e \u0434\u0440\u0430\u0439\u0432\u0435\u0440\u0430 exFAT. \u041a\u043e\u0434 \u0434\u0440\u0430\u0439\u0432\u0435\u0440\u0430 \u043e\u0442\u043a\u0440\u044b\u0442 \u043f\u043e\u0434 \u043b\u0438\u0446\u0435\u043d\u0437\u0438\u0435\u0439 GPLv2 \u0438 \u0432\u0440\u0435\u043c\u0435\u043d\u043d\u043e \u043e\u0433\u0440\u0430\u043d\u0438\u0447\u0435\u043d \u0440\u0430\u0431\u043e\u0442\u043e\u0439 \u0432 \u0440\u0435\u0436\u0438\u043c\u0435 \u0442\u043e\u043b\u044c\u043a\u043e \u0434\u043b\u044f \u0447\u0442\u0435\u043d\u0438\u044f. \u0412 \u0440\u0430\u0437\u0440\u0430\u0431\u043e\u0442\u043a\u0435 \u043d\u0430\u0445\u043e\u0434\u0438\u0442\u0441\u044f \u0432\u0430\u0440\u0438\u0430\u043d\u0442 \u0434\u0440\u0430\u0439\u0432\u0435\u0440\u0430, \u043f\u043e\u0434\u0434\u0435\u0440\u0436\u0438\u0432\u0430\u044e\u0449\u0438\u0439 \u0440\u0435\u0436\u0438\u043c \u0437\u0430\u043f\u0438\u0441\u0438, \u043d\u043e \u043e\u043d \u0435\u0449\u0451 \u043d\u0435 \u0433\u043e\u0442\u043e\u0432 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