{"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\/ro\/blog\/news\/v-yadro-linux-dlya-fs-ext4-vklyuchena-podderzhka-raboty-bez-uchyota-registra-simvolov","title":{"rendered":"\u00cen nucleul Linux pentru FS Ext4 a fost inclus suportul pentru func\u021bionarea f\u0103r\u0103 a \u021bine cont de majuscule","gt_translate_keys":[{"key":"rendered","format":"text"}]},"content":{"rendered":"

Ted Ts'o, autor al sistemelor de fi\u0219iere ext2\/ext3\/ext4, a acceptat<\/a><\/noindex> \u00een ramura Linux-next, pe baza c\u0103reia va fi format\u0103 versiunea kernelului Linux 5.2, un set modific\u0103ri<\/a><\/noindex>, implement\u00e2nd suport pentru opera\u021bii f\u0103r\u0103 distinc\u021bia dintre litere \u00een sistemul de fi\u0219iere Ext4. Patch-urile adaug\u0103, de asemenea, suport pentru caracterele UTF-8 \u00een numele fi\u0219ierelor.<\/p>\n

Modul de func\u021bionare f\u0103r\u0103 distinc\u021bie \u00eentre majuscule \u0219i minuscule este op\u021bional activat pentru directoare individuale prin utilizarea unei noi atribute «+F» (EXT4_CASEFOLD_FL). C\u00e2nd se seteaz\u0103 acest atribut pe un director, toate opera\u021biunile cu fi\u0219ierele \u0219i subdirectoarele din interior vor fi efectuate f\u0103r\u0103 a \u021bine cont de majuscule \u0219i minuscule, inclusiv registrul va fi ignorat \u00een opera\u021biunile de c\u0103utare \u0219i deschidere a fi\u0219ierelor (de exemplu, fi\u0219ierele Test.txt, test.txt \u0219i test.TXT \u00een aceste directoare vor fi considerate identice). \u00cen mod implicit, cu excep\u021bia directoarelor cu atributul «+F», sistemul de fi\u0219iere r\u0103m\u00e2ne sensibil la majuscule \u0219i minuscule. Un set modificat de utilitare este propus pentru gestionarea activ\u0103rii modului f\u0103r\u0103 distinc\u021bie \u00eentre majuscule \u0219i minuscule. e2fsprogs<\/a><\/noindex>.<\/p>\n

Patch-urile au fost preg\u0103tite de Gabriel Krisman Bertazi, angajat al companiei Collabora, \u0219i au fost acceptate dup\u0103 a \u0219aptea<\/a><\/noindex> \u00eencercare, dup\u0103 trei ani<\/a><\/noindex> Dezvoltare \u0219i corectarea observa\u021biilor. Implementarea nu modific\u0103 formatul de stocare pe disc \u0219i func\u021bioneaz\u0103 exclusiv la nivelul modific\u0103rii logicii de comparare a numelui \u00een func\u021bia ext4_lookup() \u0219i \u00eenlocuirea hash-ului \u00een structura dcache (Directory Name Lookup Cache). Valoarea atributului «+F» este p\u0103strat\u0103 \u00een inode-urile directoarelor individuale \u0219i se extinde la toate fi\u0219ierele \u0219i subdirectoarele incluse. Informa\u021bia despre codificare este p\u0103strat\u0103 \u00een superbloc.<\/p>\n

Pentru a evita coliziunile cu numele fi\u0219ierelor existente, atributul «+F» poate fi setat doar pe directoare goale \u00een sistemele de fi\u0219iere \u00een care, \u00een etapa de montare, este activat modul de suport pentru Unicode \u00een numele fi\u0219ierelor \u0219i directoarelor. Numele elementelor directorului pentru care este activat atributul «+F» sunt automat convertite \u00een litere mici \u0219i sunt reflectate \u00een aceast\u0103 form\u0103 \u00een dcache, dar pe disc sunt p\u0103strate \u00een forma ini\u021bial definit\u0103 de utilizator, adic\u0103, \u00een ciuda proces\u0103rii numelui f\u0103r\u0103 a \u021bine cont de majuscule \u0219i minuscule, numele sunt afi\u0219ate \u0219i p\u0103strate f\u0103r\u0103 pierderi de informa\u021bie despre registru (dar sistemul nu va permite crearea unui nume de fi\u0219ier cu acelea\u0219i caractere, dar cu un alt registru).<\/p>\n

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

Sursa: opennet.ro<\/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":[{"message":"\u041f\u043e\u0441\u0442\u043e\u044f\u043d\u043d\u0430\u044f \u0441\u0441\u044b\u043b\u043a\u0430 \u043d\u0430 \u044d\u0442\u0443 \u0437\u0430\u043f\u0438\u0441\u044c \u0442\u043e\u043b\u044c\u043a\u043e \u0447\u0442\u043e \u0438\u0437\u043c\u0435\u043d\u0438\u043b\u0430\u0441\u044c! \u042d\u0442\u043e \u043c\u043e\u0436\u0435\u0442 \u043f\u0440\u0438\u0432\u0435\u0441\u0442\u0438 \u043a \u043e\u0448\u0438\u0431\u043a\u0435 404 \u043f\u0440\u0438 \u043f\u043e\u0441\u0435\u0446\u0435\u043d\u0438\u0438 \u0432\u0430\u0448\u0435\u0433\u043e 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