{"id":122097,"date":"2025-02-26T08:22:05","date_gmt":"2025-02-26T06:22:05","guid":{"rendered":"https:\/\/prohoster.info\/blog\/novosti-interneta\/kristof-helvig-ushyol-s-posta-mejntejnera-dma-mapping-i-configfs-posle-forsirovaniya-rust"},"modified":"2025-02-26T08:22:05","modified_gmt":"2025-02-26T06:22:05","slug":"kristof-helvig-ushyol-s-posta-mejntejnera-dma-mapping-i-configfs-posle-forsirovaniya-rust","status":"publish","type":"post","link":"https:\/\/prohoster.info\/et\/blog\/news\/kristof-helvig-ushyol-s-posta-mejntejnera-dma-mapping-i-configfs-posle-forsirovaniya-rust","title":{"rendered":"Christoph Hellwig lahkus DMA Mappingu ja ConfigFS peahalduri kohalt p\u00e4rast Rusti juurutamist","gt_translate_keys":[{"key":"rendered","format":"text"}]},"content":{"rendered":"

\u041a\u0440\u0438\u0441\u0442\u043e\u0444 \u0425\u0435\u043b\u0432\u0438\u0433 (Christoph Hellwig) \u0443\u0448\u0451\u043b \u0441 \u043f\u043e\u0437\u0438\u0446\u0438\u0438 \u043c\u044d\u0439\u043d\u0442\u0435\u0439\u043d\u0435\u0440\u0430 \u043f\u043e\u0434\u0441\u0438\u0441\u0442\u0435\u043c dma-mapping \u0438 configfs. \u0423\u0445\u043e\u0434 \u043e\u0433\u0440\u0430\u043d\u0438\u0447\u0438\u043b\u0441\u044f \u043e\u0442\u043f\u0440\u0430\u0432\u043a\u043e\u0439 \u0437\u0430\u044f\u0432\u043a\u0438 \u043d\u0430 \u0443\u0434\u0430\u043b\u0435\u043d\u0438\u0435 \u0438\u0437 \u0441\u043f\u0438\u0441\u043a\u0430 \u043c\u044d\u0439\u043d\u0442\u0435\u0439\u043d\u0435\u0440\u043e\u0432 \u0438 \u0441\u043e\u043e\u0431\u0449\u0435\u043d\u0438\u0435\u043c \u043e \u043f\u0435\u0440\u0435\u0434\u0430\u0447\u0435 \u0443\u043f\u0440\u0430\u0432\u043b\u0435\u043d\u0438\u044f \u043e\u0441\u0442\u0430\u0432\u0448\u0438\u043c\u0441\u044f \u0441\u043e\u043f\u0440\u043e\u0432\u043e\u0436\u0434\u0430\u044e\u0449\u0438\u043c. \u0412 \u043f\u043e\u0434\u0441\u0438\u0441\u0442\u0435\u043c\u0435 dma-mapping \u0441\u043e\u043f\u0440\u043e\u0432\u043e\u0436\u0434\u0435\u043d\u0438\u0435 \u043f\u0440\u043e\u0434\u043e\u043b\u0436\u0438\u0442 \u041c\u0430\u0440\u0435\u043a \u0428\u0438\u043f\u0440\u043e\u0432\u0441\u043a\u0438 (Marek Szyprowski) \u0438\u0437 Samsung, \u0430 \u0432 configfs — \u0414\u0436\u043e\u044d\u043b \u0411\u0435\u043a\u043a\u0435\u0440 (Joel Becker) \u0438\u0437 Oracle. <\/p>\n

Christoph Hellwig j\u00e4\u00e4b endiselt NVM Express, vmalloc ja FreeVXFS alams\u00fcsteemide peahoiuriteks. Varem kuulus Christoph Linux Foundationi juhtivasse tehnilisse komiteesse ja osales selliste alams\u00fcsteemide arendamises nagu XFS, KVM<\/a>, Trace events, SCSI ja Slab Allocator, samuti hooldas ta PowerPC arhitektuuri Linuxi kernelis. Lisaks oli Christoph hageja kohtuvaidluses VMware\u2019iga, mis oli seotud GPL litsentsi rikkumisega. <\/p>\n

dma-mapping ja configfs alams\u00fcsteemide hooldamise l\u00f5petamine tulenes Linus Torvaldsi avaldusest, et plaanitakse Rusti koodide integreerimist kernelisse s\u00f5ltumatult alams\u00fcsteemide peahoiurite n\u00f5usolekust, kelle jaoks need murded on loodud. Jaanuaris keeldus Christoph p\u00f5him\u00f5tteliselt aktsepteerimast Rusti murret DMA funktsioonide jaoks kernelis, mis t\u00f5i kaasa konflikti, mille tulemuseks lahkusid Nouveau ja ARM\/Apple alams\u00fcsteemide peahoiurid kernelist. 24. veebruaril pakkusid Rust for Linux projekti arendajad v\u00e4lja plaastri configfs FS-i abstraktsioonikihi jaoks, mille hooldamisega tegeles Christoph Hellwig. Christoph ei osalenud uue Rusti murde arutelul oma alams\u00fcsteemi jaoks ning paar p\u00e4eva hiljem eemaldas ta end dma-mapping ja configfs peahoiurite nimekirjast. <\/p>\n

Christoph Hellwig peab mitme programmeerimiskeele kasutamist sellistes keerulistes projektides nagu Linuxi kernel vastuv\u00f5etamatuks. Christophi arvates muudavad segatud koodibaasid hooldajate t\u00f6\u00f6 keerulisemaks, kuna panevad nad s\u00f5ltuvusse teise keele koodist. Eriti Rust'i murrede olemasolul peavad C-s kirjutatud alams\u00fcsteemide arendajad arvestama, kuidas nende muudatused m\u00f5jutavad murrete toimimist. Igasugune muutus C-s andmestruktuurides v\u00f5i sisefunktsioonides v\u00f5ib n\u00f5uda murrete koodi muutmist, seet\u00f5ttu tuleb C-koodis tehtavaid muudatusi, mis m\u00f5jutavad murdeid, j\u00e4lgida ja s\u00fcnkroonida Rust'i koodiga. <\/p>\n

Ytse juhtimise tuuma arendamise k\u00e4igus ilmnesid faktid, kus pull-requesti muudatused m\u00e4luhalduse alams\u00fcsteemis l\u00fckati tagasi, kuna see muudatus p\u00f5hjustas tuuma koostamise nurjumise, kui oli sisse l\u00fclitatud Rusti toe tugi. Nurjumine tekkis Rusti m\u00e4histe genereerimise koodi (bindgen) s\u00fcnkroonimise katkemise t\u00f5ttu ning see t\u00f5i kaasa selle, et m\u00e4luhalduse alams\u00fcsteemi hooldajad, kes edastasid muutuse, mis oli C koodi ja tuuma tervikuna t\u00e4iesti korrektne, s\u00f5ltusid osaliselt valikulisest kolmandate osapoolte koodist tuumas, mille eest vastutavad teised inimesed. <\/p>\n

Linus Torvalds usub, et Christoph Hellwig'il ei ole \u00f5igust blokeerida Rusti m\u00e4histe vastuv\u00f5ttu DMA alams\u00fcsteemis, kuna nende m\u00e4histe kood ei puuduta DMA Mapping alams\u00fcsteemi koodi ja on rakendatud eraldi kaustas, mille hooldamise eest vastutab eraldi hooldaja. Linus v\u00f5rdles Christoph'i tegevust katsega kontrollida DMA alams\u00fcsteemi kasutusala, arvestades, et hooldajad vastutavad ainult oma alams\u00fcsteemi koodi eest, mitte selle eest, kuidas ja kelle poolt seda koodi kasutakse. N\u00e4iteks muudatus alams\u00fcsteemi baas koodis v\u00f5ib p\u00f5hjustada probleeme konkreetse draiveri toimimisel, kuid see ei ole p\u00f5hjus sekkuda uute draiverite vastuv\u00f5ttu.
\n
Allikas: opennet.ru<\/a> <\/p>","protected":false,"gt_translate_keys":[{"key":"rendered","format":"html"}]},"excerpt":{"rendered":"

\u041a\u0440\u0438\u0441\u0442\u043e\u0444 \u0425\u0435\u043b\u0432\u0438\u0433 (Christoph Hellwig) \u0443\u0448\u0451\u043b \u0441 \u043f\u043e\u0437\u0438\u0446\u0438\u0438 \u043c\u044d\u0439\u043d\u0442\u0435\u0439\u043d\u0435\u0440\u0430 \u043f\u043e\u0434\u0441\u0438\u0441\u0442\u0435\u043c dma-mapping \u0438 configfs. \u0423\u0445\u043e\u0434 \u043e\u0433\u0440\u0430\u043d\u0438\u0447\u0438\u043b\u0441\u044f \u043e\u0442\u043f\u0440\u0430\u0432\u043a\u043e\u0439 \u0437\u0430\u044f\u0432\u043a\u0438 \u043d\u0430 \u0443\u0434\u0430\u043b\u0435\u043d\u0438\u0435 \u0438\u0437 \u0441\u043f\u0438\u0441\u043a\u0430 \u043c\u044d\u0439\u043d\u0442\u0435\u0439\u043d\u0435\u0440\u043e\u0432 \u0438 \u0441\u043e\u043e\u0431\u0449\u0435\u043d\u0438\u0435\u043c \u043e \u043f\u0435\u0440\u0435\u0434\u0430\u0447\u0435 \u0443\u043f\u0440\u0430\u0432\u043b\u0435\u043d\u0438\u044f \u043e\u0441\u0442\u0430\u0432\u0448\u0438\u043c\u0441\u044f \u0441\u043e\u043f\u0440\u043e\u0432\u043e\u0436\u0434\u0430\u044e\u0449\u0438\u043c. \u0412 \u043f\u043e\u0434\u0441\u0438\u0441\u0442\u0435\u043c\u0435 dma-mapping \u0441\u043e\u043f\u0440\u043e\u0432\u043e\u0436\u0434\u0435\u043d\u0438\u0435 \u043f\u0440\u043e\u0434\u043e\u043b\u0436\u0438\u0442 \u041c\u0430\u0440\u0435\u043a \u0428\u0438\u043f\u0440\u043e\u0432\u0441\u043a\u0438 (Marek Szyprowski) \u0438\u0437 Samsung, \u0430 \u0432 configfs — \u0414\u0436\u043e\u044d\u043b \u0411\u0435\u043a\u043a\u0435\u0440 (Joel Becker) \u0438\u0437 Oracle. \u041a\u0440\u0438\u0441\u0442\u043e\u0444 \u0425\u0435\u043b\u0432\u0438\u0433 \u043f\u043e\u043a\u0430 \u043e\u0441\u0442\u0430\u0451\u0442\u0441\u044f \u0432 \u0447\u0438\u0441\u043b\u0435 […]<\/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-122097","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\udd47Christoph Hellwig lahkus DMA Mapping ja ConfigFS hooldaja ametist Rusti toe sunniviisilise rakendamise t\u00f5ttu | ProHoster","description":"Christoph Hellwig lahkus dma-mapping ja configfs alams\u00fcsteemi hooldaja 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