{"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\/fr\/blog\/news\/v-yadro-linux-dlya-fs-ext4-vklyuchena-podderzhka-raboty-bez-uchyota-registra-simvolov","title":{"rendered":"Le noyau Linux pour le syst\u00e8me de fichiers Ext4 a inclus la prise en charge de l'op\u00e9ration sans distinction de casse.","gt_translate_keys":[{"key":"rendered","format":"text"}]},"content":{"rendered":"

Ted Ts'o, auteur des syst\u00e8mes de fichiers ext2\/ext3\/ext4, a accept\u00e9<\/a><\/noindex> dans la branche Linux-next, \u00e0 partir de laquelle sera cr\u00e9\u00e9 le lancement du noyau Linux 5.2, un ensemble modifications<\/a><\/noindex>, mettant en \u0153uvre le support des op\u00e9rations non sensibles \u00e0 la casse dans le syst\u00e8me de fichiers Ext4. Les patches ajoutent \u00e9galement le support des caract\u00e8res UTF-8 dans les noms de fichiers.<\/p>\n

Le mode de fonctionnement sans distinction de la casse est optionnellement activ\u00e9 en liaison avec des r\u00e9pertoires sp\u00e9cifiques \u00e0 l'aide du nouvel attribut \u00ab +F \u00bb (EXT4_CASEFOLD_FL). En d\u00e9finissant cet attribut sur un r\u00e9pertoire, toutes les op\u00e9rations sur les fichiers et sous-r\u00e9pertoires \u00e0 l'int\u00e9rieur seront effectu\u00e9es sans tenir compte de la casse des caract\u00e8res, y compris la casse sera ignor\u00e9e lors des op\u00e9rations de recherche et d'ouverture de fichiers (par exemple, les fichiers Test.txt, test.txt et test.TXT dans de tels r\u00e9pertoires seront consid\u00e9r\u00e9s comme identiques). Par d\u00e9faut, \u00e0 l'exception des r\u00e9pertoires avec l'attribut \u00ab +F \u00bb, le syst\u00e8me de fichiers continue d'\u00eatre sensible \u00e0 la casse. Un ensemble modifi\u00e9 d'outils est propos\u00e9 pour g\u00e9rer l'activation du mode insensible \u00e0 la casse. e2fsprogs<\/a><\/noindex>.<\/p>\n

Les patches ont \u00e9t\u00e9 pr\u00e9par\u00e9s par Gabriel Krisman Bertazi, employ\u00e9 de Collabora, et accept\u00e9s apr\u00e8s la septi\u00e8me<\/a><\/noindex> tentative apr\u00e8s trois ans<\/a><\/noindex> la conception et la correction des remarques. La mise en \u0153uvre n'apporte pas de modifications au format de stockage sur disque et fonctionne exclusivement au niveau du changement de la logique de comparaison des noms dans la fonction ext4_lookup() et du remplacement du hachage dans la structure dcache (Cache de Recherche de Noms de R\u00e9pertoire). La valeur de l'attribut \u00ab +F \u00bb est conserv\u00e9e dans l'inode des r\u00e9pertoires individuels et se propage \u00e0 tous les fichiers et sous-r\u00e9pertoires imbriqu\u00e9s. Les informations sur l'encodage sont conserv\u00e9es dans le superbloc.<\/p>\n

Pour \u00e9viter les collisions avec les noms des fichiers existants, l'attribut \u00ab +F \u00bb ne peut \u00eatre d\u00e9fini que sur des r\u00e9pertoires vides dans des syst\u00e8mes de fichiers o\u00f9 le support Unicode pour les noms de fichiers et de r\u00e9pertoires est activ\u00e9 lors du montage. Les noms des \u00e9l\u00e9ments de r\u00e9pertoire pour lesquels l'attribut \u00ab +F \u00bb est activ\u00e9 sont automatiquement convertis en minuscules et refl\u00e9t\u00e9s sous cette forme dans dcache, mais sur disque, ils sont conserv\u00e9s dans leur forme initialement d\u00e9finie par l'utilisateur, c'est-\u00e0-dire qu'en d\u00e9pit du traitement des noms ind\u00e9pendamment de la casse, les noms sont affich\u00e9s et conserv\u00e9s sans perte d'information sur la casse des caract\u00e8res (mais le syst\u00e8me ne permettra pas de cr\u00e9er un nom de fichier avec les m\u00eames caract\u00e8res, mais dans un autre registre).<\/p>\n

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

Source : 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\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\udd47Le noyau Linux pour le syst\u00e8me de fichiers Ext4 inclut le support de la gestion sans distinction de casse | ProHoster","description":"Ted Ts\u2019o, auteur des syst\u00e8mes de fichiers ext2\/ext3\/ext4, a \u00e9t\u00e9 int\u00e9gr\u00e9 dans la branche Linux-next, \u00e0 partir de laquelle 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