{"id":32507,"date":"2019-10-31T21:47:26","date_gmt":"2019-10-31T18:47:26","guid":{"rendered":"https:\/\/prohoster.info\/blog\/v-yadro-linux-dlya-fs-ext4-vklyuchena-podderzhka-raboty-bez-uchyota-registra-simvolov\/"},"modified":"2019-10-31T21:47:26","modified_gmt":"2019-10-31T18:47:26","slug":"v-yadro-linux-dlya-fs-ext4-vklyuchena-podderzhka-raboty-bez-uchyota-registra-simvolov","status":"publish","type":"post","link":"https:\/\/prohoster.info\/da\/blog\/news\/v-yadro-linux-dlya-fs-ext4-vklyuchena-podderzhka-raboty-bez-uchyota-registra-simvolov","title":{"rendered":"Linux-kernen inkluderer nu st\u00f8tte til at arbejde uden hensyn til tegns\u00e6tningsbekendtg\u00f8relser i Ext4-filsystemet","gt_translate_keys":[{"key":"rendered","format":"text"}]},"content":{"rendered":"

Ted Ts'o, forfatteren af filsystemerne ext2\/ext3\/ext4, har vedtaget<\/a><\/noindex> til Linux-next-grenen, som vil danne grundlag for udgivelsen af Linux-kernen 5.2, et s\u00e6t \u00e6ndringer<\/a><\/noindex>, der implementerer underst\u00f8ttelse af registreringsuafh\u00e6ngige operationer i filsystemet Ext4. Patchene tilf\u00f8jer ogs\u00e5 underst\u00f8ttelse af UTF-8-tegn i filnavne.<\/p>\n

Registreringsmodus for case-insensitivity kan valgfrit aktiveres for individuelle mapper ved hj\u00e6lp af den nye attribut \"+F\" (EXT4_CASEFOLD_FL). N\u00e5r denne attribut er indstillet p\u00e5 en mappe, vil alle fil- og undermappeoperationer indenfor blive udf\u00f8rt uden hensyn til skrifttegns registrering; registreringen vil blive ignoreret ved s\u00f8gninger og \u00e5bning af filer (for eksempel vil filerne Test.txt, test.txt og test.TXT i s\u00e5danne mapper blive betragtet som ens). Som standard, med undtagelse af mapper med attributten \"+F\", forbliver filsystemet case-sensitive. For at styre aktiveringen af case-insensitive tilstand tilbydes et modificeret s\u00e6t v\u00e6rkt\u00f8jer, e2fsprogs<\/a><\/noindex>.<\/p>\n

Patchene er forberedt af Gabriel Krisman Bertazi, medarbejder i Collabora, og er accepteret efter den syvende<\/a><\/noindex> fors\u00f8g efter tre \u00e5r<\/a><\/noindex> til udvikling og fejlretning. Implementeringen \u00e6ndrer ikke diskens lagringsformat og fungerer udelukkende p\u00e5 niveauet for \u00e6ndring af logikken til sammenligning af navne i funktionen ext4_lookup() og udskiftning af hashen i strukturen dcache (Directory Name Lookup Cache). V\u00e6rdien af attributten \"+F\" gemmes inden i inode for de individuelle mapper og g\u00e6lder for alle indlejrede filer og undermapper. Oplysninger om kodning gemmes i superblokken.<\/p>\n

For at undg\u00e5 kollisioner med navne p\u00e5 eksisterende filer kan attributten \"+F\" kun installeres p\u00e5 tomme mapper i filsystemer, hvor support for Unicode i fil- og mappenavne er aktiveret under monteringsfasen. Navnene p\u00e5 de elementer i mapper, som f\u00e5r aktiveret attributten \"+F\", overs\u00e6ttes automatisk til sm\u00e5 bogstaver og afspejles i denne form i dcache, men gemmes p\u00e5 disken i brugernes oprindelige format, dvs. p\u00e5 trods af behandling af navne uafh\u00e6ngigt af registrering vises og gemmes navnene uden tab af information om skrifttegns registrering (men systemet vil ikke tillade oprettelsen af et filnavn med de samme tegn, men i anden registrering).<\/p>\n

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

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

\u0422\u0435\u0434 \u0426\u043e (Ted Ts’o), \u0430\u0432\u0442\u043e\u0440 \u0444\u0430\u0439\u043b\u043e\u0432\u044b\u0445 \u0441\u0438\u0441\u0442\u0435\u043c ext2\/ext3\/ext4, \u043f\u0440\u0438\u043d\u044f\u043b \u0432 \u0432\u0435\u0442\u043a\u0443 Linux-next, \u043d\u0430 \u043e\u0441\u043d\u043e\u0432\u0435 \u043a\u043e\u0442\u043e\u0440\u043e\u0439 \u0431\u0443\u0434\u0435\u0442 \u0441\u0444\u043e\u0440\u043c\u0438\u0440\u043e\u0432\u0430\u043d \u0432\u044b\u043f\u0443\u0441\u043a \u044f\u0434\u0440\u0430 Linux 5.2, \u043d\u0430\u0431\u043e\u0440 \u0438\u0437\u043c\u0435\u043d\u0435\u043d\u0438\u0439, \u0440\u0435\u0430\u043b\u0438\u0437\u0443\u044e\u0449\u0438\u0445 \u043f\u043e\u0434\u0434\u0435\u0440\u0436\u043a\u0443 \u0440\u0435\u0433\u0438\u0441\u0442\u0440\u043e\u043d\u0435\u0437\u0430\u0432\u0438\u0441\u0438\u043c\u044b\u0445 \u043e\u043f\u0435\u0440\u0430\u0446\u0438\u0439 \u0432 \u0444\u0430\u0439\u043b\u043e\u0432\u043e\u0439 \u0441\u0438\u0441\u0442\u0435\u043c\u0435 Ext4. \u041f\u0430\u0442\u0447\u0438 \u0442\u0430\u043a\u0436\u0435 \u0434\u043e\u0431\u0430\u0432\u043b\u044f\u044e\u0442 \u043f\u043e\u0434\u0434\u0435\u0440\u0436\u043a\u0443 \u0441\u0438\u043c\u0432\u043e\u043b\u043e\u0432 UTF-8 \u0432 \u0438\u043c\u0435\u043d\u0430\u0445 \u0444\u0430\u0439\u043b\u043e\u0432. \u0420\u0435\u0436\u0438\u043c \u0440\u0430\u0431\u043e\u0442\u044b \u0431\u0435\u0437 \u0440\u0430\u0437\u043b\u0438\u0447\u0438\u044f \u0440\u0435\u0433\u0438\u0441\u0442\u0440\u0430 \u0441\u0438\u043c\u0432\u043e\u043b\u043e\u0432 \u043e\u043f\u0446\u0438\u043e\u043d\u0430\u043b\u044c\u043d\u043e \u0432\u043a\u043b\u044e\u0447\u0430\u0435\u0442\u0441\u044f \u0432 \u043f\u0440\u0438\u0432\u044f\u0437\u043a\u0435 \u043a \u043e\u0442\u0434\u0435\u043b\u044c\u043d\u044b\u043c \u043a\u0430\u0442\u0430\u043b\u043e\u0433\u0430\u043c \u043f\u0440\u0438 \u043f\u043e\u043c\u043e\u0449\u0438 […]<\/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-32507","post","type-post","status-publish","format-standard","hentry","category-news"],"aioseo_notices":[],"aioseo_head":"\n\t\t\n\t\n\t\n\t\n\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\n","aioseo_head_json":{"title":"\ud83e\udd47I Linux-kernen er der indbygget support for caseless filsystemer i Ext4 | ProHoster","description":"Ted Ts\u2019o, forfatteren af filsystemerne ext2\/ext3\/ext4, har accepteret til Linux-next-grenen, som vil danne grundlag 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