Christoph Hellwig, KVM, Slab Allocator ja PowerPC alams\u00fcsteemide hooldaja Linuxi tuumas, kes oli kunagi Linux Foundation'i tehnilise komitee liige ja esitas hagi seoses GPL-i kohustuse rikkumisega VMware'iga, keeldus kinnitamast Rusti keeles draiverite arendamise toetamiseks seotud pat\u0161e. Pakutud pat\u0161id lisasid DMA alams\u00fcsteemi mitme funktsiooni kohal toetused, v\u00f5imaldades kasutada DMA-rataste Rusti keeles draiverites. <\/p>\n
Keeldumise p\u00f5hjuseks toodi esile koodi hooldamise keerukuse suurenemine, kui on olemas teiste keelte toetused, ja soov s\u00e4ilitada DMA programmiliideseid loetava C-keeles, ilma et need oleksid h\u00e4gustatud arusaamatute toega. Christoph soovitas p\u00f6\u00f6rduda otse DMA algse C API poole igas Rusti keeles draiveris, et mitte luua t\u00e4iendavaid abstraktsioone, millest hooldajad s\u00f5ltuma peavad. <\/p>\n
\u0420\u0430\u0437\u0440\u0430\u0431\u043e\u0442\u0447\u0438\u043a\u0438 \u043f\u0430\u0442\u0447\u0435\u0439 \u0443\u043a\u0430\u0437\u0430\u043b\u0438, \u0447\u0442\u043e \u043e\u043d\u0438 \u0432\u043e\u0437\u044c\u043c\u0443\u0442 \u043d\u0430 \u0441\u0435\u0431\u044f \u0432\u0441\u044e \u0440\u0430\u0431\u043e\u0442\u0443 \u043f\u043e \u0441\u043e\u043f\u0440\u043e\u0432\u043e\u0436\u0434\u0435\u043d\u0438\u044e \u043a\u043e\u0434\u0430 \u043d\u0430 Rust, \u0433\u043e\u0442\u043e\u0432\u044b \u0441\u043e\u043f\u0440\u043e\u0432\u043e\u0436\u0434\u0430\u0442\u044c \u044d\u0442\u0438 \u043f\u0430\u0442\u0447\u0438 \u0441\u0430\u043c\u043e\u0441\u0442\u043e\u044f\u0442\u0435\u043b\u044c\u043d\u043e \u0438 \u0432\u044b\u043d\u0435\u0441\u043b\u0438 \u043e\u0431\u0432\u044f\u0437\u043a\u0438 \u0432 \u043e\u0442\u0434\u0435\u043b\u044c\u043d\u044b\u0439 \u043f\u043e\u0434\u043a\u0430\u0442\u0430\u043b\u043e\u0433 (rust\/kernel\/dma.rs). \u0412 \u043e\u0442\u0432\u0435\u0442 \u041a\u0440\u0438\u0441\u0442\u043e\u0444 \u043d\u0430\u043b\u043e\u0436\u0438\u043b \u0432\u0435\u0442\u043e («Nacked-by») \u043d\u0430 \u043f\u0440\u0438\u0451\u043c \u0441\u0432\u044f\u0437\u0430\u043d\u043d\u044b\u0445 \u0441 Rust \u043f\u0430\u0442\u0447\u0435\u0439 \u0438 \u0443\u043a\u0430\u0437\u0430\u043b, \u0447\u0442\u043e \u0435\u043c\u0443 \u043d\u0435 \u043d\u0443\u0436\u0435\u043d \u0435\u0449\u0451 \u043e\u0434\u0438\u043d \u0441\u043e\u043f\u0440\u043e\u0432\u043e\u0436\u0434\u0430\u044e\u0449\u0438\u0439. \u041a\u0440\u0438\u0441\u0442\u043e\u0444 \u0437\u0430\u044f\u0432\u0438\u043b, \u0447\u0442\u043e \u0435\u0441\u043b\u0438 \u0440\u0430\u0437\u0440\u0430\u0431\u043e\u0442\u0447\u0438\u043a\u0438 \u043e\u0431\u0432\u044f\u0437\u043e\u043a \u0445\u043e\u0442\u044f\u0442 \u0434\u043e\u0431\u0438\u0442\u044c\u0441\u044f \u043d\u0435\u0432\u043e\u0437\u043c\u043e\u0436\u043d\u043e\u0441\u0442\u0438 \u0441\u043e\u043f\u0440\u043e\u0432\u043e\u0436\u0434\u0435\u043d\u0438\u044f Linux \u0438\u0437-\u0437\u0430 \u0441\u043c\u0435\u0448\u0438\u0432\u0430\u043d\u0438\u044f \u043d\u0435\u0441\u043a\u043e\u043b\u044c\u043a\u0438\u0445 \u044f\u0437\u044b\u043a\u043e\u0432 \u0432 \u043e\u0434\u043d\u043e\u0439 \u043a\u043e\u0434\u043e\u0432\u043e\u0439 \u0431\u0430\u0437\u0435, \u0438\u043c \u0441\u043b\u0435\u0434\u0443\u0435\u0442 \u0434\u0435\u043b\u0430\u0442\u044c \u044d\u0442\u043e \u0432 \u0441\u0432\u043e\u0451\u043c \u0434\u0440\u0430\u0439\u0432\u0435\u0440\u0435, \u0430 \u043d\u0435 \u0440\u0430\u0441\u043f\u0440\u043e\u0441\u0442\u0440\u0430\u043d\u044f\u0442\u044c \u044d\u0442\u0443 \u0440\u0430\u043a\u043e\u0432\u0443\u044e \u043e\u043f\u0443\u0445\u043e\u043b\u044c \u043d\u0430 \u043e\u0441\u043d\u043e\u0432\u043d\u044b\u0435 \u043f\u043e\u0434\u0441\u0438\u0441\u0442\u0435\u043c\u044b \u044f\u0434\u0440\u0430. <\/p>\n
Lisaks t\u00e4psustas Christoph, et tal ei ole midagi Rusti keele vastu ja peab seda \u00fcheks parimaks uutest keeltest, kuid ta on vastu erinevate keelte koodi segamisele. Christoph \u00fctles, et ta toetab Rustis uute projektide loomist, kuid on vastu Rusti segamisele suurte C keele koodibaasidega, kuna selline segamine v\u00e4hendab oluliselt tuuma hooldamise mugavust kui integreeritud projekti. <\/p>\n
Probleemid toega on seotud sellega, et Rusti m\u00e4hised s\u00f5ltuvad Rusti keeles olevast koodist. Esmapilgul n\u00e4ib, et m\u00e4hised on lihtsalt kihi \u00fclesehitus C-struktuuride ja funktsioonide kohal, mis ei m\u00f5juta C keeles oleva koodi arendamist ja hooldamist. Kuid see pole nii. Selliste m\u00e4histe olemasolul peavad C keeles kirjutatud alams\u00fcsteemide arendajad arvesse v\u00f5tma nende muutuste m\u00f5ju m\u00e4histe t\u00f6\u00f6kindlusele. Iga muutus C keeles olevates andmestruktuurides v\u00f5i sisemistes funktsioonides v\u00f5ib p\u00f5hjustada vajaduse muuta m\u00e4histe koodi, seet\u00f5ttu tuleb C koodis m\u00e4histele m\u00f5juvaid muutusi j\u00e4lgida ja s\u00fcnkroonida Rusti koodiga. Paljud hooldajad ei ole valmis v\u00f5tma endale t\u00e4iendavat vastutust, et lahendada Rusti koodis tekkivaid probleeme, ning ei kavatse kulutada aega Rusti m\u00e4histe seisundi j\u00e4lgimiseks. <\/p>\n
Hoolduse keerukuse olukord ei ole teoreetiline. Arutelu on liitunud Jason Gunthorpe, NVIDIA-d TPM, VFIO ja Infiniband hoidja, kes t\u00f5i v\u00e4lja n\u00e4ite Linus Torvaldsi pull-requesti tagasil\u00fckkamisest, mis sisaldas muudatusi m\u00e4lu juhtimise alams\u00fcsteemis, kuna see muutus p\u00f5hjustas t\u00f5rke p\u00fc\u00fcdes koostada tuuma Rusti toe lubamisega. T\u00f5rge tekkis seet\u00f5ttu, et Rusti koodi hoidjad ei lisanud vajalikku muudatust sidurite generaatorisse (bindgen). Seega, m\u00e4lu juhtimise alams\u00fcsteemi hoidjad, edastades t\u00e4iustuse, mis on koodis C ja tuuma tervikuna t\u00e4iesti korrektne, s\u00f5ltusid l\u00f5pptulemusena valikulistest kolmandate osapoolte koodidest tuumas, mille eest vastutavad teised inimesed. <\/p>\n
\u041e\u0442\u043a\u0430\u0437 \u043f\u0440\u0438\u043d\u0438\u043c\u0430\u0442\u044c \u043a\u043e\u0434 \u043e\u0431\u0432\u044f\u0437\u043a\u0438 \u043d\u0430\u0434 \u0432\u044b\u0437\u043e\u0432\u0430\u043c\u0438 DMA \u043f\u043e\u0441\u0442\u0430\u0432\u0438\u043b \u0440\u0430\u0437\u0440\u0430\u0431\u043e\u0442\u0447\u0438\u043a\u043e\u0432 \u043f\u0440\u043e\u0435\u043a\u0442\u0430 Rust for Linux \u0432 \u0442\u0443\u043f\u0438\u043a, \u0442\u0430\u043a \u043a\u0430\u043a \u0431\u0435\u0437 \u043f\u043e\u0434\u043e\u0431\u043d\u044b\u0445 \u043e\u0431\u0432\u044f\u0437\u043e\u043a \u0440\u0430\u0437\u0440\u0430\u0431\u043e\u0442\u043a\u0430 \u043f\u043e\u043b\u043d\u043e\u0446\u0435\u043d\u043d\u044b\u0445 \u0434\u0440\u0430\u0439\u0432\u0435\u0440\u043e\u0432 \u043d\u0430 \u044f\u0437\u044b\u043a\u0435 Rust \u0431\u0443\u0434\u0435\u0442 \u0437\u0430\u0442\u0440\u0443\u0434\u043d\u0435\u043d\u0430. \u0413\u0435\u043a\u0442\u043e\u0440 \u041c\u0430\u0440\u0442\u0438\u043d (Hector Martin), \u043c\u044d\u0439\u043d\u0442\u0435\u0439\u043d\u0435\u0440 \u043a\u043e\u0434\u0430 \u0434\u043b\u044f \u043f\u043e\u0434\u0434\u0435\u0440\u0436\u0438 ARM-\u0447\u0438\u043f\u043e\u0432 Apple \u0438 \u043b\u0438\u0434\u0435\u0440 \u043f\u0440\u043e\u0435\u043a\u0442\u0430 Ashai Linux, \u0432 \u043a\u0430\u0447\u0435\u0441\u0442\u0432\u0435 \u0432\u0430\u0440\u0438\u0430\u043d\u0442\u0430 \u0440\u0430\u0437\u0440\u0435\u0448\u0435\u043d\u0438\u044f \u043a\u043e\u043d\u0444\u043b\u0438\u043a\u0442\u0430 \u043f\u0440\u0435\u0434\u043b\u043e\u0436\u0438\u043b \u0434\u043e\u0431\u0438\u0442\u044c\u0441\u044f \u043f\u0440\u0438\u043d\u044f\u0442\u0438\u044f \u043e\u0431\u0432\u044f\u0437\u043a\u0438 \u043d\u0430\u043f\u0440\u044f\u043c\u0443\u044e \u0447\u0435\u0440\u0435\u0437 \u041b\u0438\u043d\u0443\u0441\u0430 \u0422\u043e\u0440\u0432\u0430\u043b\u044c\u0434\u0441\u0430, \u0432 \u043e\u0431\u0445\u043e\u0434 \u0441\u043e\u043f\u0440\u043e\u0432\u043e\u0436\u0434\u0430\u044e\u0449\u0435\u0433\u043e \u043f\u043e\u0434\u0441\u0438\u0441\u0442\u0435\u043c\u0443 DMA. \u0415\u0441\u043b\u0438 \u041b\u0438\u043d\u0443\u0441 \u0441\u043e\u0433\u043b\u0430\u0441\u0438\u0442\u0441\u044f \u043d\u0430 \u043f\u043e\u0434\u043e\u0431\u043d\u043e\u0435 \u043d\u0430\u0440\u0443\u0448\u0435\u043d\u0438\u0435 \u0441\u0443\u0431\u043e\u0440\u0434\u0438\u043d\u0430\u0446\u0438\u0438 \u0438 \u0441\u043b\u043e\u0436\u0438\u0432\u0448\u0435\u0439\u0441\u044f \u043f\u0440\u0430\u043a\u0442\u0438\u043a\u0438, \u044d\u0442\u043e \u043c\u043e\u0436\u0435\u0442 \u043f\u0440\u0438\u0432\u0435\u0441\u0442\u0438 \u043a \u043a\u0440\u0438\u0437\u0438\u0441\u0443 \u0443\u043f\u0440\u0430\u0432\u043b\u0435\u043d\u0438\u044f \u0440\u0430\u0437\u0440\u0430\u0431\u043e\u0442\u043a\u043e\u0439 \u044f\u0434\u0440\u0430, \u0430 \u0435\u0441\u043b\u0438 \u043e\u0442\u043a\u0430\u0436\u0435\u0442\u0441\u044f — \u043e\u0441\u0442\u0430\u043d\u043e\u0432\u0438\u0442 \u043f\u0440\u043e\u0434\u0432\u0438\u0436\u0435\u043d\u0438\u0435 Rust \u0432 \u044f\u0434\u0440\u043e. <\/p>\n
N\u00e4iteks mainis Hector, et Christophe'i vastutusele hoidmine k\u00e4itumiskoodeksi rikkumise eest seoses kommentaariga, kus ta v\u00f5rdis Rusti kasvaja sarnaseks, on v\u00f5imalik. Lisaks kirjutas Hector, et on v\u00e4sinud k\u00f5igist b\u00fcrokraatlikest takistustest, pole valmis lihtsalt usaldama kehtivaid protsesse ja vihjas sotsiaalmeedia kaasamisele. Dave Airlie, DRM alamkompleksi hooldaja, soovitas konflikti mitte mullitada ja m\u00f5ista, etSelline toksiline k\u00e4itumine ei ole m\u00f5lemalt poolelt vastuv\u00f5etav, s\u00f5ltumata sellest, kas arutelu osaleja on \u00f5ige v\u00f5i vale. <\/p>\n
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\u0412 \u043e\u0442\u0432\u0435\u0442 \u0413\u0435\u043a\u0442\u043e\u0440 \u043e\u0442\u043f\u0440\u0430\u0432\u0438\u043b \u0437\u0430\u043f\u0440\u043e\u0441 \u043d\u0430 \u0443\u0434\u0430\u043b\u0435\u043d\u0438\u0435 \u0441\u0435\u0431\u044f \u0438\u0437 \u0447\u0438\u0441\u043b\u0430 \u0441\u043e\u043f\u0440\u043e\u0432\u043e\u0436\u0434\u0430\u044e\u0449\u0438\u0445 \u043f\u043b\u0430\u0442\u0444\u043e\u0440\u043c\u0443 ARM\/APPLE, \u0442\u0430\u043a \u043a\u0430\u043a \u043e\u043d \u043f\u043e\u0442\u0435\u0440\u044f\u043b \u0432\u0435\u0440\u0443 \u0432 \u043f\u0440\u0438\u043c\u0435\u043d\u044f\u0435\u043c\u044b\u0439 \u0432 \u044f\u0434\u0440\u0435 \u043f\u0440\u043e\u0446\u0435\u0441\u0441 \u0440\u0430\u0437\u0440\u0430\u0431\u043e\u0442\u043a\u0438 \u0438 \u043f\u043e\u0434\u0445\u043e\u0434 \u043a \u0443\u043f\u0440\u0430\u0432\u043b\u0435\u043d\u0438\u044e \u0441\u043e\u043e\u0431\u0449\u0435\u0441\u0442\u0432\u043e\u043c. \u041e\u043d \u0442\u0430\u043a\u0436\u0435 \u0437\u0430\u044f\u0432\u0438\u043b, \u0447\u0442\u043e \u0440\u0430\u0437\u0440\u0430\u0431\u043e\u0442\u043a\u0430 \u043f\u043b\u0430\u0442\u0444\u043e\u0440\u043c\u044b ARM\/Apple \u0431\u0443\u0434\u0435\u0442 \u043f\u0440\u043e\u0434\u043e\u043b\u0436\u0435\u043d\u0430 \u0432\u043d\u0435 \u043e\u0441\u043d\u043e\u0432\u043d\u043e\u0433\u043e \u044f\u0434\u0440\u0430 Linux. \u0423 \u043f\u043b\u0430\u0442\u0444\u043e\u0440\u043c\u044b ARM\/Apple \u0432 \u044f\u0434\u0440\u0435 \u043e\u0441\u0442\u0430\u043b\u0441\u044f \u0435\u0449\u0451 \u043e\u0434\u0438\u043d \u043c\u044d\u0439\u043d\u0442\u0435\u0439\u043d\u0435\u0440 — \u0421\u0432\u0435\u043d \u041f\u0438\u0442\u0435\u0440 (Sven Peter), \u043a\u043e\u0442\u043e\u0440\u044b\u0439 \u043d\u0430\u043c\u0435\u0440\u0435\u043d \u043f\u0440\u043e\u0434\u043e\u043b\u0436\u0438\u0442\u044c \u043f\u043e\u0434\u0434\u0435\u0440\u0436\u0430\u043d\u0438\u0435 \u043f\u043b\u0430\u0442\u0444\u043e\u0440\u043c\u044b \u0432 \u044f\u0434\u0440\u0435. \u041a\u0440\u0438\u0441\u0442\u043e\u0444 \u0425\u0435\u043b\u0432\u0438\u0433 (Christoph Hellwig), \u043c\u044d\u0439\u043d\u0442\u0435\u0439\u043d\u0435\u0440 \u043f\u043e\u0434\u0441\u0438\u0441\u0442\u0435\u043c DMA, KVM, Slab Allocator \u0438 \u0430\u0440\u0445\u0438\u0442\u0435\u043a\u0442\u0443\u0440\u044b PowerPC \u0432 \u044f\u0434\u0440\u0435 Linux, \u0432 \u0441\u0432\u043e\u0451 \u0432\u0440\u0435\u043c\u044f \u0432\u0445\u043e\u0434\u0438\u0432\u0448\u0438\u0439 \u0432 \u0443\u043f\u0440\u0430\u0432\u043b\u044f\u044e\u0449\u0438\u0439 \u0442\u0435\u0445\u043d\u0438\u0447\u0435\u0441\u043a\u0438\u0439 \u043a\u043e\u043c\u0438\u0442\u0435\u0442 \u043e\u0440\u0433\u0430\u043d\u0438\u0437\u0430\u0446\u0438\u0438 Linux Foundation \u0438 \u0432\u044b\u0441\u0442\u0443\u043f\u0430\u0432\u0448\u0438\u0439 \u0438\u0441\u0442\u0446\u043e\u043c \u0432 \u0441\u0432\u044f\u0437\u0430\u043d\u043d\u043e\u043c \u0441 GPL \u0441\u0443\u0434\u0435\u0431\u043d\u043e\u043c \u0440\u0430\u0437\u0431\u0438\u0440\u0430\u0442\u0435\u043b\u044c\u0441\u0442\u0432\u0435 \u0441 VMware, \u043e\u0442\u043a\u0430\u0437\u0430\u043b\u0441\u044f \u043f\u043e\u0434\u0442\u0432\u0435\u0440\u0436\u0434\u0430\u0442\u044c \u043f\u0430\u0442\u0447\u0438, \u0441\u0432\u044f\u0437\u0430\u043d\u043d\u044b\u0435 \u0441 \u043f\u043e\u0434\u0434\u0435\u0440\u0436\u043a\u043e\u0439 \u0440\u0430\u0437\u0440\u0430\u0431\u043e\u0442\u043a\u0438 \u0434\u0440\u0430\u0439\u0432\u0435\u0440\u043e\u0432 \u043d\u0430 \u044f\u0437\u044b\u043a\u0435 Rust. \u041f\u0440\u0435\u0434\u043b\u043e\u0436\u0435\u043d\u043d\u044b\u0439 \u043f\u0430\u0442\u0447\u0438 \u0434\u043e\u0431\u0430\u0432\u043b\u044f\u043b\u0438 \u043e\u0431\u0432\u044f\u0437\u043a\u0438 \u043d\u0430\u0434 \u043d\u0435\u0441\u043a\u043e\u043b\u044c\u043a\u0438\u043c\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-121754","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\udd47Kriis Rusti edendamisel tuumas seoses hoolduse keerukuse hirmuga | ProHoster","description":"Christoph Hellwig, DMA, KVM, Slab Allocator ja PowerPC arhitektuuri hooldaja Linuxi tuumas, kes on kunagi kuulunud Linux Foundationi juhtivasse tehnilisse komiteesse.","canonical_url":"https:\/\/prohoster.info\/et\/blog\/news\/krizis-v-prodvizhenii-rust-v-yadro-iz-za-opasenij-uslozhneniya-soprovozhdeniya","robots":"max-image-preview:large","keywords":"","webmasterTools":{"miscellaneous":""},"schema":null,"og:locale":"et_EE","og:site_name":"ProHoster | \u041a\u0443\u043f\u0438\u0442\u044c \u043d\u0430\u0434\u0435\u0436\u043d\u044b\u0439 \u0445\u043e\u0441\u0442\u0438\u043d\u0433 \u0434\u043b\u044f \u0441\u0430\u0439\u0442\u043e\u0432 \u0441 \u0437\u0430\u0449\u0438\u0442\u043e\u0439 \u043e\u0442 DDoS, VPS VDS \u0441\u0435\u0440\u0432\u0435\u0440\u044b","og:type":"article","og:title":"\ud83e\udd47\u041a\u0440\u0438\u0437\u0438\u0441 \u0432 \u043f\u0440\u043e\u0434\u0432\u0438\u0436\u0435\u043d\u0438\u0438 Rust \u0432 \u044f\u0434\u0440\u043e \u0438\u0437-\u0437\u0430 \u043e\u043f\u0430\u0441\u0435\u043d\u0438\u0439 \u0443\u0441\u043b\u043e\u0436\u043d\u0435\u043d\u0438\u044f \u0441\u043e\u043f\u0440\u043e\u0432\u043e\u0436\u0434\u0435\u043d\u0438\u044f | ProHoster","og:description":"\u041a\u0440\u0438\u0441\u0442\u043e\u0444 \u0425\u0435\u043b\u0432\u0438\u0433 (Christoph Hellwig), \u043c\u044d\u0439\u043d\u0442\u0435\u0439\u043d\u0435\u0440 \u043f\u043e\u0434\u0441\u0438\u0441\u0442\u0435\u043c DMA, KVM, Slab Allocator \u0438 \u0430\u0440\u0445\u0438\u0442\u0435\u043a\u0442\u0443\u0440\u044b PowerPC \u0432 \u044f\u0434\u0440\u0435 Linux, \u0432 \u0441\u0432\u043e\u0451 \u0432\u0440\u0435\u043c\u044f \u0432\u0445\u043e\u0434\u0438\u0432\u0448\u0438\u0439 \u0432 \u0443\u043f\u0440\u0430\u0432\u043b\u044f\u044e\u0449\u0438\u0439 \u0442\u0435\u0445\u043d\u0438\u0447\u0435\u0441\u043a\u0438\u0439 \u043a\u043e\u043c\u0438\u0442\u0435\u0442 \u043e\u0440\u0433\u0430\u043d\u0438\u0437\u0430\u0446\u0438\u0438 Linux Foundation 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Allikas: opennet.ru<\/a> <\/p>","protected":false,"gt_translate_keys":[{"key":"rendered","format":"html"}]},"excerpt":{"rendered":"