Linux 5.11 ya zo tare da haɓaka don Btrfs, haɓaka tallafi don AMD, USB4 da ƙari

Bayan watanni biyu na ci gaba, Linus Torvalds ya sanar a 'yan kwanakin da suka gabata da fitar da sabon sigar Linux kernel 5.11 kuma a cikin wannan sabon fitowar mafi yawan sanannun canje-canje, zamu iya ambaton goyan baya ga Intel SGX enclaves, sabon tsari don karɓar kira na tsarin, bas ɗin mataimaki na ƙaura, saurin tace tsarin kira a cikin seccomp, dakatar da kula da gine-ginen ia64, iyawa don kunsa SCTP a cikin UDP.

Sabuwar sigar ya karɓi gyare-gyare 15480 daga masu haɓaka 1991, girman facin shine 72MB (Canje-canje sun shafi fayiloli 12090, layin 868,025 na lambar da aka kara, an cire layuka 261,456). Kusan 46% na duk canje-canjen da aka gabatar a cikin 5.11 suna da alaƙa da direbobin na'urar, kimanin 16% na canje-canje suna da alaƙa da sabunta takamaiman lambar kayan gine-ginen kayan aiki, 13% suna da alaƙa da tarin cibiyar sadarwa, 3% suna da alaƙa da tsarin fayil kuma 4% suna da alaƙa da ƙananan ƙwayoyin ƙananan ƙwayoyin cuta.

Babban sabon fasali na Linux 5.11

A cikin wannan sabon sigar na Linux Kernel 5.11, zamu iya samun hakan addedara ƙarin zaɓuɓɓukan tsawa zuwa Btrfs don amfani dasu yayin dawo da bayanai daga gurɓatattun fayilolin fayiloli, ban da cire tallafi don zaɓin dutsen da aka ɓata a baya "inode_cache", an shirya lambar don tallafawa toshe tare da metadata da bayanan da suka fi ƙanƙanta da shafi (PAGE_SIZE), da kuma tallafi don rabon sarari ta shiyyoyi.

Bayan haka an ƙara sabon tsari don karɓar kiran tsarin, dangane da prctl () kuma hakan yana ba da damar jefa keɓaɓɓu daga sararin mai amfani yayin samun damar takamaiman tsarin kira da kwaikwayon aiwatarwa. Ana buƙatar wannan aikin a cikin Wine da Proton don yin koyi da kiran tsarin Windows, wanda ya zama dole don tabbatar da dacewa tare da wasanni da shirye-shirye waɗanda ke aiwatar da kiran tsarin kai tsaye ba tare da shiga cikin Windows API ba (misali, don kariya daga amfani mara izini).

Don gine-gine RISC-V, an ƙara tallafi don tsarin rarraba ƙwaƙwalwar ajiya mai ƙwaƙwalwar ajiya (CMA), wanda aka inganta shi don rarraba manyan wuraren ƙwaƙwalwar ajiya ta amfani da dabarar motsi shafi. Don RISC-V, akwai kuma kayan aikin da aka aiwatar don iyakance damar zuwa / dev / mem da kuma lissafin lokacin aiki.

Don tsarin 32-bit ARM, an ƙara goyan baya ga kayan aikin cire kayan KASan (sanitizer adreshin kernel), wanda ke ba da gano kuskure yayin aiki da ƙwaƙwalwa. Don ARM 64-bit, an motsa aiwatar da KASan don amfani da alamun MTE (MemTag).

Game da tuwarewa da tsaro, kiran tsarin yana fitowa seccomp () wanda ya ƙara tallafi don yanayin amsa mai sauri, wanda ke ba ka damar saurin sanin ko an ba da izinin ƙirar takamaiman tsarin ko an ƙi shi bisa ga bitmap mai ɗorewa wanda aka haɗe da aikin, wanda baya buƙatar fara mai kula da BPF.

Hakanan, zamu iya samun wasu Abubuwan haɗin kernel waɗanda aka haɗu don ƙirƙirar halitta da gudanarwa bisa ga fasahar Intel SGX (Software Guard eXtensions), wanda ke ba da damar aikace-aikace don aiwatar da lamba a cikin keɓaɓɓun wuraren ɓoye da ɓoyayyen wuraren ƙwaƙwalwa, waɗanda ke da ƙarancin damar zuwa sauran tsarin.

Don tsarin ARM64, an ƙara ikon amfani da alamun tagging Memory Tagging Extension (MemTag) don adiresoshin ƙwaƙwalwar mai kula da sigina. Amfani da MTE yana aiki ta hanyar tantance SA_EXPOSE_TAGBITS zaɓi a cikin Sigaction () kuma yana ba ku damar tabbatar da daidaito na amfani da alamomi don toshe amfani da yanayin lahani.

A ƙarshe a ɓangaren masu kula, Tallafi ga Intel Maple Ridge na Farko Mai Hankali USB4 Mai Gudanar da Mai Gudanarwa, kazalika da tallafi ga AMD "Green Sardine" APUs (Ryzen 5000) da "Dimgrey Cavefish" GPUs (Navi 2), da kuma tallafi na farko ga AMD Van Gogh APUs tare da Zen 2 core da RDNA 2 (Navi 2) GPUs. Ara tallafi don sababbin ID ɗin Renoir APU (dangane da Zen 2 CPU da Vega GPU).

Direban nouveau yana ƙara tallafi na farko don NVIDIA GPUs dangane da »Ampere» microarchitecture (GA100, GeForce RTX 30xx), a halin yanzu an iyakance shi ga sarrafa yanayin yanayin bidiyo.