{"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\/pt\/blog\/news\/razrabotchiki-yadra-linux-obsuzhdayut-vozmozhnost-udaleniya-reiserfs","title":{"rendered":"Os desenvolvedores do n\u00facleo do Linux discutem a possibilidade de remover o ReiserFS","gt_translate_keys":[{"key":"rendered","format":"text"}]},"content":{"rendered":"<p>Matthew Wilcox da Oracle, conhecido por criar o driver nvme (NVM Express) e o mecanismo de acesso direto ao sistema de arquivos DAX, sugeriu remover o sistema de arquivos ReiserFS do n\u00facleo do Linux, assim como foram removidos anteriormente os sistemas de arquivos desatualizados ext e xiafs, ou reduzir o c\u00f3digo do ReiserFS, mantendo apenas o suporte para opera\u00e7\u00f5es em modo de somente leitura.      <\/p>\n<p>O motivo para a remo\u00e7\u00e3o foram as dificuldades adicionais na moderniza\u00e7\u00e3o da infraestrutura do n\u00facleo, causadas pelo fato de que, especificamente para o ReiserFS, os desenvolvedores s\u00e3o for\u00e7ados a manter no n\u00facleo um manipulador de flag desatualizado, o AOP_FLAG_CONT_EXPAND, j\u00e1 que o ReiserFS continua a ser o \u00fanico sistema de arquivos que utiliza essa flag na fun\u00e7\u00e3o write_begin. Al\u00e9m disso, a \u00faltima corre\u00e7\u00e3o no c\u00f3digo do ReiserFS data de 2019 e n\u00e3o est\u00e1 claro o quanto tal sistema de arquivos \u00e9 realmente utilizado e se ainda \u00e9 adotado.        <\/p>\n<p>Jan K\u00e1ra, da empresa SUSE, concordou que o ReiserFS est\u00e1 a caminho da obsolesc\u00eancia, mas n\u00e3o est\u00e1 claro se j\u00e1 \u00e9 suficiente para ser removido do n\u00facleo. Segundo Jan, o ReiserFS continua a ser fornecido no openSUSE e SLES, mas a base de usu\u00e1rios desse sistema de arquivos \u00e9 insignificante e est\u00e1 em constante diminui\u00e7\u00e3o. Para os usu\u00e1rios corporativos, o suporte ao ReiserFS na SUSE foi encerrado h\u00e1 3-4 anos, e o m\u00f3dulo do ReiserFS n\u00e3o faz parte do pacote do n\u00facleo por padr\u00e3o. Como alternativa, Jan sugeriu come\u00e7ar a emitir um aviso de obsolesc\u00eancia ao montar parti\u00e7\u00f5es ReiserFS e considerar esse sistema de arquivos pronto para remo\u00e7\u00e3o se, em um ou dois anos, ningu\u00e9m manifestar o desejo de continuar usando-o.    <\/p>\n<p>Eduard Shishkin, respons\u00e1vel pelo suporte do sistema de arquivos ReiserFS, se juntou \u00e0 discuss\u00e3o e forneceu um patch que remove o uso da flag AOP_FLAG_CONT_EXPAND do c\u00f3digo do ReiserFS. Matthew Wilcox aceitou o patch em seu ramo. Assim, o motivo para a remo\u00e7\u00e3o foi eliminado e a quest\u00e3o de excluir o ReiserFS do n\u00facleo pode ser considerada adiada por um per\u00edodo consider\u00e1vel.    <\/p>\n<p>N\u00e3o ser\u00e1 poss\u00edvel ignorar completamente a quest\u00e3o da obsolesc\u00eancia do ReiserFS devido ao trabalho de exclus\u00e3o do n\u00facleo de sistemas de arquivos com o problema n\u00e3o resolvido de 2038. Por exemplo, por essa raz\u00e3o, j\u00e1 foi preparado um cronograma para a remo\u00e7\u00e3o do n\u00facleo da vers\u00e3o quatro do formato do sistema de arquivos XFS (o novo formato XFS foi proposto no n\u00facleo 5.10 e deslocou o estouro do contador de tempo para o ano 2468). A constru\u00e7\u00e3o do XFS v4 ser\u00e1 desativada por padr\u00e3o em 2025, e o c\u00f3digo ser\u00e1 removido em 2030). Um cronograma semelhante ser\u00e1 desenvolvido para o ReiserFS, proporcionando pelo menos cinco anos para a migra\u00e7\u00e3o para outros sistemas de arquivos ou um formato de metadados alterado.<br \/>\n<br \/>Fonte: <a content=\"nofollow\" rel=\"nofollow\" href=\"https:\/\/www.opennet.ru\/opennews\/art.shtml?num=56747\">opennet.ru<\/a> <\/p>","protected":false,"gt_translate_keys":[{"key":"rendered","format":"html"}]},"excerpt":{"rendered":"<p>\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 \u0443\u0441\u0442\u0430\u0440\u0435\u0432\u0448\u0438\u043c\u0438 \u0424\u0421 ext \u0438 xiafs \u0438\u043b\u0438 \u0441\u043e\u043a\u0440\u0430\u0442\u0438\u0442\u044c \u043a\u043e\u0434 ReiserFS, \u043e\u0441\u0442\u0430\u0432\u0438\u0432 \u0442\u043e\u043b\u044c\u043a\u043e \u043f\u043e\u0434\u0434\u0435\u0440\u0436\u043a\u0443 \u0440\u0430\u0431\u043e\u0442\u044b \u0432 \u0440\u0435\u0436\u0438\u043c\u0435 \u0442\u043e\u043b\u044c\u043a\u043e \u0434\u043b\u044f \u0447\u0442\u0435\u043d\u0438\u044f. \u041c\u043e\u0442\u0438\u0432\u043e\u043c \u0434\u043b\u044f \u0443\u0434\u0430\u043b\u0435\u043d\u0438\u044f [&hellip;]<\/p>\n","protected":false,"gt_translate_keys":[{"key":"rendered","format":"html"}]},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[702],"tags":[],"class_list":["post-103420","post","type-post","status-publish","format-standard","hentry","category-news"],"aioseo_notices":[],"aioseo_head":"\n\t\t<!-- All in One SEO 5.0.3 - aioseo.com -->\n\t<meta name=\"description\" content=\"\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 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