{"id":91660,"date":"2020-08-16T13:42:08","date_gmt":"2020-08-16T11:42:08","guid":{"rendered":"https:\/\/prohoster.info\/blog\/novosti-interneta\/kompaniya-paragon-software-opublikovala-gpl-realizacziyu-ntfs-dlya-yadra-linux"},"modified":"2020-08-16T13:42:08","modified_gmt":"2020-08-16T11:42:08","slug":"kompaniya-paragon-software-opublikovala-gpl-realizacziyu-ntfs-dlya-yadra-linux","status":"publish","type":"post","link":"https:\/\/prohoster.info\/sv\/blog\/news\/kompaniya-paragon-software-opublikovala-gpl-realizacziyu-ntfs-dlya-yadra-linux","title":{"rendered":"F\u00f6retaget Paragon Software har publicerat en GPL-implementation av NTFS f\u00f6r Linux-k\u00e4rnan","gt_translate_keys":[{"key":"rendered","format":"text"}]},"content":{"rendered":"

Konstantin Komarov, grundare och ledare f\u00f6r f\u00f6retaget Paragon Software, publicerade<\/a><\/noindex> i e-postlistan f\u00f6r Linux-k\u00e4rnan ett antal patchar<\/a><\/noindex> med en fullst\u00e4ndig implementering av filsystemet NTFS<\/a><\/noindex>, vilket st\u00f6djer l\u00e4s- och skrivl\u00e4ge. Koden \u00e4r \u00f6ppen under GPL-licensen.<\/p>\n

Implementeringen st\u00f6der alla funktioner i den aktuella versionen NTFS 3.1, inklusive ut\u00f6kade filattribut, datakomprimeringsl\u00e4ge, effektiv hantering av tomrum i filer och \u00e5terskapande av \u00e4ndringar fr\u00e5n loggen f\u00f6r att \u00e5terst\u00e4lla integriteten efter krasch. Den f\u00f6reslagna drivrutinen anv\u00e4nder f\u00f6r n\u00e4rvarande en egen nedskuren implementering av NTFS-loggen, men man planerar att senare l\u00e4gga till st\u00f6d f\u00f6r fullst\u00e4ndig loggning ovanp\u00e5 den nuvarande universella blockenheten i k\u00e4rnan. JBD<\/a><\/noindex> (Journaling block device), p\u00e5 vilket loggningen i ext3, ext4 och OCFS2 \u00e4r baserad.<\/p>\n

Drivrutinen bygger p\u00e5 kodbasen av den befintliga kommersiella produkten<\/a><\/noindex> Paragon Software och har testats noggrant. Patchar \u00e4r utformade i enlighet med krav f\u00f6r kodberedning f\u00f6r Linux och inneh\u00e5ller inga kopplingar till ytterligare API:er, vilket m\u00f6jligg\u00f6r att den nya drivrutinen kan inkluderas i k\u00e4rnans huvudupps\u00e4ttning. Efter att patcharna har inkluderats i k\u00e4rnans huvudupps\u00e4ttning av Linux avser Paragon Software att tillhandah\u00e5lla underh\u00e5ll, buggfixar och funktionalitetsutvidgning.<\/p>\n

Det kan dock ta tid att inkludera den i k\u00e4rnan p\u00e5 grund av behovet av att genomf\u00f6ra en granskning av den f\u00f6reslagna koden av externa utvecklare. Kommentarerna till publikationen n\u00e4mner ocks\u00e5 problem<\/a><\/noindex> med byggande och brott mot<\/a><\/noindex> en rad krav<\/a><\/noindex> f\u00f6r utformning av patchar. Till exempel f\u00f6resl\u00e5s att dela upp den inskickade patchen i delar eftersom 27 000 rader i en patch \u00e4r f\u00f6r mycket och skapar sv\u00e5righeter vid granskning och kontroll. I filen MAINTAINERS rekommenderas det att tydligt definiera policyn f\u00f6r fortsatt underh\u00e5ll av koden och ange vilken Git-gren som ska anv\u00e4ndas f\u00f6r att skicka in korrigeringar. Det framh\u00e4vs ocks\u00e5 att det \u00e4r n\u00f6dv\u00e4ndigt att samordna till\u00e4gget av den nya NTFS-implementeringen n\u00e4r en gammal fs\/ntfs-drivrutin finns, som bara fungerar i l\u00e4sl\u00e4ge.<\/p>\n

Tidigare var det n\u00f6dv\u00e4ndigt att anv\u00e4nda FUSE-drivrutinen NTFS-3g f\u00f6r full \u00e5tkomst till NTFS-partitioner fr\u00e5n Linux, som arbetar i anv\u00e4ndarutrymmet och inte ger \u00f6nskad prestanda. Denna drivrutin har inte uppdaterats<\/a><\/noindex> sedan 2017, precis som den l\u00e4sande drivrutinen fs\/ntfs. B\u00e5da drivrutinerna skapades av f\u00f6retaget Tuxera, som tillsammans med Paragon Software, levererar<\/a><\/noindex> en propriet\u00e4r NTFS-drivrutin som distribueras kommersiellt. <\/p>\n

Vi p\u00e5minner om att i oktober f\u00f6rra \u00e5ret, efter publikation<\/a><\/noindex> Microsofts offentligg\u00f6rande av specifikationer och m\u00f6jligheten till fri anv\u00e4ndning av patent p\u00e5 exFAT i Linux, \u00f6ppnade Paragon Software koden f\u00f6r sin drivrutin med exFAT-filssystem. Den f\u00f6rsta versionen av drivrutinen var begr\u00e4nsad till endast l\u00e4sning, men en version med skrivst\u00f6d var under utveckling. Dessa patchar f\u00f6rblev o\u00f6nskade och den officiella k\u00e4rnan antog exFAT-drivrutinen, f\u00f6reslagen<\/a><\/noindex> av Samsung och anv\u00e4nd i firmware f\u00f6r Android-smartphones fr\u00e5n detta f\u00f6retag. Detta steg togs emot med sm\u00e4rta av<\/a><\/noindex> Paragon Software, som kritiserade<\/a><\/noindex> de \u00f6ppna implementationerna av exFAT och NTFS.<\/p>\n

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

K\u00e4lla: opennet.ru<\/a><\/p>","protected":false,"gt_translate_keys":[{"key":"rendered","format":"html"}]},"excerpt":{"rendered":"

\u041a\u043e\u043d\u0441\u0442\u0430\u043d\u0442\u0438\u043d \u041a\u043e\u043c\u0430\u0440\u043e\u0432, \u043e\u0441\u043d\u043e\u0432\u0430\u0442\u0435\u043b\u044c \u0438 \u0440\u0443\u043a\u043e\u0432\u043e\u0434\u0438\u0442\u0435\u043b\u044c \u043a\u043e\u043c\u043f\u0430\u043d\u0438\u0438 Paragon Software, \u043e\u043f\u0443\u0431\u043b\u0438\u043a\u043e\u0432\u0430\u043b \u0432 \u0441\u043f\u0438\u0441\u043a\u0435 \u0440\u0430\u0441\u0441\u044b\u043b\u043a\u0438 \u044f\u0434\u0440\u0430 Linux \u043d\u0430\u0431\u043e\u0440 \u043f\u0430\u0442\u0447\u0435\u0439 \u0441 \u043f\u043e\u043b\u043d\u043e\u0446\u0435\u043d\u043d\u043e\u0439 \u0440\u0435\u0430\u043b\u0438\u0437\u0430\u0446\u0438\u0435\u0439 \u0444\u0430\u0439\u043b\u043e\u0432\u043e\u0439 \u0441\u0438\u0441\u0442\u0435\u043c\u044b NTFS, \u043f\u043e\u0434\u0434\u0435\u0440\u0436\u0438\u0432\u0430\u044e\u0449\u0435\u0439 \u0440\u0430\u0431\u043e\u0442\u0443 \u0432 \u0440\u0435\u0436\u0438\u043c\u0435 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