{"id":103420,"date":"2022-02-23T21:36:49","date_gmt":"2022-02-23T19:36:49","guid":{"rendered":"https:\/\/prohoster.info\/blog\/novosti-interneta\/razrabotchiki-yadra-linux-obsuzhdayut-vozmozhnost-udaleniya-reiserfs"},"modified":"2022-02-23T21:36:49","modified_gmt":"2022-02-23T19:36:49","slug":"razrabotchiki-yadra-linux-obsuzhdayut-vozmozhnost-udaleniya-reiserfs","status":"publish","type":"post","link":"https:\/\/prohoster.info\/sv\/blog\/news\/razrabotchiki-yadra-linux-obsuzhdayut-vozmozhnost-udaleniya-reiserfs","title":{"rendered":"Utvecklare av Linux-k\u00e4rnan diskuterar m\u00f6jligheten att ta bort ReiserFS.","gt_translate_keys":[{"key":"rendered","format":"text"}]},"content":{"rendered":"

Matthew Wilcox fr\u00e5n Oracle, k\u00e4nd f\u00f6r att ha skapat nvme-drivrutinen (NVM Express) och mekanismen f\u00f6r direkt\u00e5tkomst till filsystemet DAX, f\u00f6reslog att ReiserFS-filsystemet skulle tas bort fr\u00e5n Linux-k\u00e4rnan, likt de gamla filsystemen ext och xiafs som en g\u00e5ng togs bort, eller att koden f\u00f6r ReiserFS skulle kortas ner s\u00e5 att den endast beh\u00e5ller st\u00f6d f\u00f6r l\u00e4sl\u00e4ge. <\/p>\n

Motivet f\u00f6r att ta bort det var de extra sv\u00e5righeterna med att modernisera k\u00e4rninfrastrukturen, d\u00e5 utvecklarna tvingades l\u00e4mna kvar den f\u00f6r\u00e5ldrade AOP_FLAG_CONT_EXPAND-flaggbehandlaren i k\u00e4rnan uteslutande f\u00f6r ReiserFS, eftersom ReiserFS \u00e4r det enda filsystemet som anv\u00e4nder den flaggan i funktionen write_begin. Det senaste kodfixet f\u00f6r ReiserFS \u00e4r daterat till 2019 och det \u00e4r oklart hur efterfr\u00e5gat detta filsystem fortfarande \u00e4r och om det anv\u00e4nds. <\/p>\n

\u042f\u043d \u041a\u0430\u0440\u0430 (Jan Kára) \u0438\u0437 \u043a\u043e\u043c\u043f\u0430\u043d\u0438\u0438 SUSE \u0441\u043e\u0433\u043b\u0430\u0441\u0438\u043b\u0441\u044f, \u0447\u0442\u043e ReiserFS \u043d\u0430\u0445\u043e\u0434\u0438\u0442\u0441\u044f \u043d\u0430 \u043f\u0443\u0442\u0438 \u043a \u0443\u0441\u0442\u0430\u0440\u0435\u0432\u0430\u043d\u0438\u044e, \u043d\u043e \u043d\u0435\u043f\u043e\u043d\u044f\u0442\u043d\u043e, \u0434\u043e\u0441\u0442\u0430\u0442\u043e\u0447\u043d\u043e \u043b\u0438 \u043e\u043d\u0430 \u0443\u0441\u0442\u0430\u0440\u0435\u043b\u0430 \u0434\u043b\u044f \u0443\u0434\u0430\u043b\u0435\u043d\u0438\u044f \u0438\u0437 \u044f\u0434\u0440\u0430. \u041f\u043e \u0434\u0430\u043d\u043d\u044b\u043c \u042f\u043d\u0430, ReiserFS \u043f\u0440\u043e\u0434\u043e\u043b\u0436\u0430\u0435\u0442 \u043f\u043e\u0441\u0442\u0430\u0432\u043b\u044f\u0442\u044c\u0441\u044f \u0432 openSUSE \u0438 SLES, \u043d\u043e \u043f\u043e\u043b\u044c\u0437\u043e\u0432\u0430\u0442\u0435\u043b\u044c\u0441\u043a\u0430\u044f \u0431\u0430\u0437\u0430 \u0434\u0430\u043d\u043d\u043e\u0439 \u0424\u0421 \u043d\u0435\u0437\u043d\u0430\u0447\u0438\u0442\u0435\u043b\u044c\u043d\u0430 \u0438 \u043f\u043e\u0441\u0442\u043e\u044f\u043d\u043d\u043e \u0441\u043e\u043a\u0440\u0430\u0449\u0430\u0435\u0442\u0441\u044f. \u0414\u043b\u044f \u043a\u043e\u0440\u043f\u043e\u0440\u0430\u0442\u0438\u0432\u043d\u044b\u0445 \u043f\u043e\u043b\u044c\u0437\u043e\u0432\u0430\u0442\u0435\u043b\u0435\u0439 \u043f\u043e\u0434\u0434\u0435\u0440\u0436\u043a\u0430 ReiserFS \u0432 SUSE \u0431\u044b\u043b\u0430 \u043f\u0440\u0435\u043a\u0440\u0430\u0449\u0435\u043d\u0430 3-4 \u0433\u043e\u0434\u0430 \u043d\u0430\u0437\u0430\u0434, \u0438 \u043c\u043e\u0434\u0443\u043b\u044c \u0441 ReiserFS \u043d\u0435 \u0432\u0445\u043e\u0434\u0438\u0442 \u043f\u043e \u0443\u043c\u043e\u043b\u0447\u0430\u043d\u0438\u044e \u0432 \u043f\u0430\u043a\u0435\u0442 \u0441 \u044f\u0434\u0440\u043e\u043c. \u041a\u0430\u043a \u0432\u0430\u0440\u0438\u0430\u043d\u0442 \u042f\u043d \u043f\u0440\u0435\u0434\u043b\u043e\u0436\u0438\u043b \u043d\u0430\u0447\u0430\u0442\u044c \u0432\u044b\u0432\u043e\u0434\u0438\u0442\u044c \u043f\u0440\u0435\u0434\u0443\u043f\u0440\u0435\u0436\u0434\u0435\u043d\u0438\u0435 \u043e\u0431 \u0443\u0441\u0442\u0430\u0440\u0435\u0432\u0430\u043d\u0438\u0438 \u043f\u0440\u0438 \u043c\u043e\u043d\u0442\u0438\u0440\u043e\u0432\u0430\u043d\u0438\u0438 \u0440\u0430\u0437\u0434\u0435\u043b\u043e\u0432 ReiserFS \u0438 \u0441\u0447\u0438\u0442\u0430\u0442\u044c \u0434\u0430\u043d\u043d\u0443\u044e \u0424\u0421 \u0433\u043e\u0442\u043e\u0432\u043e\u0439 \u043a \u0443\u0434\u0430\u043b\u0435\u043d\u0438\u044e, \u0435\u0441\u043b\u0438 \u0432 \u0442\u0435\u0447\u0435\u043d\u0438\u0435 \u0433\u043e\u0434\u0430 \u0438\u043b\u0438 \u0434\u0432\u0443\u0445 \u043d\u0438\u043a\u0442\u043e \u043d\u0435 \u0434\u0430\u0441\u0442 \u0437\u043d\u0430\u0442\u044c \u043e \u0436\u0435\u043b\u0430\u043d\u0438\u0438 \u043f\u0440\u043e\u0434\u043e\u043b\u0436\u0438\u0442\u044c \u0438\u0441\u043f\u043e\u043b\u044c\u0437\u043e\u0432\u0430\u043d\u0438\u0435 \u0434\u0430\u043d\u043d\u043e\u0439 \u0424\u0421. <\/p>\n

Till diskussionen ansl\u00f6t sig Eduard Shishkin, som underh\u00e5ller ReiserFS-filsystemet, och han tillhandah\u00f6ll en patch som tar bort anv\u00e4ndningen av AOP_FLAG_CONT_EXPAND-flaggorna fr\u00e5n ReiserFS-koden. Matthew Wilcox accepterade patchen i sin gren. D\u00e4rmed har anledningen till borttagning eliminerats och fr\u00e5gan om att exkludera ReiserFS fr\u00e5n k\u00e4rnan kan anses vara uppskjuten p\u00e5 en tillr\u00e4ckligt l\u00e5ng tid. <\/p>\n

Det \u00e4r inte m\u00f6jligt att helt ignorera fr\u00e5gan om ReiserFS:s f\u00f6r\u00e5ldring p\u00e5 grund av arbeten f\u00f6r att utesluta filsystemet fr\u00e5n k\u00e4rnan p\u00e5 grund av det ol\u00f6sta problemet fr\u00e5n 2038. Till exempel har ett tidsschema f\u00f6r borttagning av version fyra av filsystemformatet XFS redan f\u00f6rberetts (det nya XFS-formatet f\u00f6reslogs i k\u00e4rna 5.10 och flyttade \u00f6verfl\u00f6det av tidsr\u00e4knaren till \u00e5r 2468). Byggnaden av XFS v4 kommer att st\u00e4ngas av som standard \u00e5r 2025, och koden kommer att tas bort \u00e5r 2030). Ett liknande tidsschema f\u00f6resl\u00e5s \u00e4ven f\u00f6r ReiserFS, vilket ger minst fem \u00e5r f\u00f6r migrering till andra filsystem eller ett \u00e4ndrat metadataformat.
\n
K\u00e4lla: opennet.ru<\/a> <\/p>","protected":false,"gt_translate_keys":[{"key":"rendered","format":"html"}]},"excerpt":{"rendered":"

\u041c\u044d\u0442\u044c\u044e \u0423\u0438\u043b\u043a\u043e\u043a\u0441 (Matthew Wilcox) \u0438\u0437 \u043a\u043e\u043c\u043f\u0430\u043d\u0438\u0438 Oracle, \u0438\u0437\u0432\u0435\u0441\u0442\u043d\u044b\u0439 \u0441\u043e\u0437\u0434\u0430\u043d\u0438\u0435\u043c \u0434\u0440\u0430\u0439\u0432\u0435\u0440\u0430 nvme (NVM Express) \u0438 \u043c\u0435\u0445\u0430\u043d\u0438\u0437\u043c\u0430 \u043f\u0440\u044f\u043c\u043e\u0433\u043e \u0434\u043e\u0441\u0442\u0443\u043f\u0430 \u043a \u0424\u0421 DAX, \u043f\u0440\u0435\u0434\u043b\u043e\u0436\u0438\u043b \u0443\u0434\u0430\u043b\u0438\u0442\u044c \u0444\u0430\u0439\u043b\u043e\u0432\u0443\u044e \u0441\u0438\u0441\u0442\u0435\u043c\u0443 ReiserFS \u0438\u0437 \u0441\u043e\u0441\u0442\u0430\u0432\u0430 \u044f\u0434\u0440\u0430 Linux \u043f\u043e \u0430\u043d\u0430\u043b\u043e\u0433\u0438\u0438 \u0441 \u043a\u043e\u0433\u0434\u0430-\u0442\u043e \u0443\u0434\u0430\u043b\u0451\u043d\u043d\u044b\u043c\u0438 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