Linux 5.14 ya zo tare da tallafin RPI 400, haɓaka EXT4, direbobi, KMV da ƙari

Bayan watanni biyu na ci gaba, Linus Torvalds ya bayyana sakin Linux kernel 5.14 kuma a cikin wannan sabon sigar manyan canje -canjen sanannu, misali sabo quotactl_fd () da memfd_secret () kiran tsarin, cire ide da danyen direbobi, sabo I / O fifikon direba don ƙungiya, SCHED_CORE yanayin jadawalin aiki, abubuwan more rayuwa don ƙirƙirar ingantattun load na shirin BPF.

Sabuwar sigar ta sami gyara 15883 daga masu haɓakawa Girman facin 2002: 69MB (canje -canje sun shafi fayiloli 12,580, An ƙara layin lamba 861501, an cire layuka 321,654).

Babban sabon fasali na Linux 5.14

A cikin wannan sabon sigar a sabon direban fifikon I / O don ƙungiya -rq-qos, wanda zai iya sarrafa fifiko na buƙatun sarrafawa don toshe na'urori wanda membobin kowane rukuni suka samar. An ƙara tallafi don sabon mai kula da fifiko a cikin mai tsara jadawalin I / O na mq.

Wani muhimmin canji yana cikin ext4, wanda yanzu ke aiwatar da sabon umarnin EXT4_IOC_CHECKPOINT ioctl wanda ke tilasta duk ma'amalar mujallar da ke jiran aiki da masu haɗe -haɗe na haɗin gwiwa da za a sauke su zuwa faifai, sannan kuma ya sake rubanya wurin ajiyar da mujallar ke amfani da ita. Canjin an shirya shi azaman wani ɓangare na shirin don hana ɓoyayyen bayanai daga tsarin fayil. Bugu da ƙari an inganta haɓaka aikin zuwa Btrfs lokacin share labaran abubuwan da ba a buƙata ba yayin aiwatar da fsync, Ayyukan ayyuka masu ƙarfi tare da ƙarin sifofi sun ƙaru zuwa 17%.

A gefe guda Ƙara quotactl_fd () kiran tsarin, wanda ke ba ku damar sarrafa ƙididdiga ba ta hanyar fayil ɗin na musamman ba, amma ta ƙayyade bayanin fayil wanda ke da alaƙa da tsarin fayil wanda ake amfani da adadin.

Bugu da ƙari tsofaffin direbobi na na'urorin toshe tare da keɓaɓɓiyar IDE an cire su daga kwaya, wanda dogon tsarin libata ya maye gurbinsa. Ana kiyaye tallafin tsoffin na'urori gaba ɗaya, canje -canjen suna nufin yiwuwar amfani da tsoffin direbobi, lokacin amfani da faifan da aka sanya wa suna / dev / hd *, ba / dev / sd *ba.

Mai tsara aiki yana da sabon yanayin tsara tsarin SCHED_CORE que yana ba ku damar sarrafa waɗanne matakai za su iya gudana tare a kan ainihin CPU ɗaya. Kowane tsari ana iya sanya kuki na ganewa wanda ke bayyana iyakar amana tsakanin matakai (alal misali, mallakar mai amfani ɗaya ko akwati).

An ƙara kiran tsarin memfd_secret (), cewa yana ba ku damar ƙirƙirar yankin ƙwaƙwalwar ajiya mai zaman kansa a cikin adireshin sarari ware, wanda ake iya gani kawai ga tsarin mallakar mallakar, ba a nuna shi cikin wasu hanyoyin ba, kuma ba za a iya samun dama ga kwaya ba.

A hypervisor KVM don tsarin ARM64 ya kara ikon amfani da fadada MTE akan tsarin baƙo, yana ba ku damar ɗaure alamomi ga kowane aikin rarraba ƙwaƙwalwar ajiya da tsara tabbaci don amfanin madaidaitan alamomi don toshe amfani da rauni lalacewa ta hanyar samun damar tubalan ƙwaƙwalwar ajiya da aka riga aka saki, ambaliyar ruwa, kira kafin farawa, da amfani a wajen mahallin yanzu.

Tabbataccen mai nuna alama ta ARM64 yanzu ana iya saita shi daban don kernel da sararin mai amfani. Fasaha tana ba da damar amfani da umarni na musamman na ARM64 don tabbatar da adiresoshin dawowa ta amfani da sa hannun dijital, waɗanda aka adana a cikin ɓangarorin da ba a amfani da su na mai nuna kansa.

Don Intel CPUs, farawa daga dangin Skylake kuma yana ƙarewa da Kogin Kofi, ta amfani da Intel TSX (Ƙarin Aiki tare na Ma'amala) naƙasasshe ne ta tsoho, Wannan yana ba da wata hanya don haɓaka aikin aikace -aikacen da aka karanta da yawa ta hanyar kawar da ayyukan daidaitawa da ba dole ba. An kashe tsawaitawa saboda yuwuwar aiwatar da hare -haren Zombieload.

Hakanan kasance tare da haɗin gwiwar MPTCP (TCP MultiPath), a cikin sabon sigar, an ƙara wani tsari don saita manufofin hash na zirga -zirgar ku don IPv4 da IPv6, wanda ke ba da damar daga sararin mai amfani don tantance wane daga cikin filayen fakiti, gami da waɗanda aka haɗa, za a yi amfani da su yayin lissafin hash wanda ke ƙayyade zaɓin hanya don fakiti.

Mai sarrafawa amdgpu ya aiwatar da tallafi don sabon jerin AMD Radeon RX 6000 na GPUs, ci gaba a ƙarƙashin sunayen lambar "Beige Goby" (Navi 24) da "Yellow Carp", da ingantaccen tallafi don GPU Aldebaran (gfx90a) da APU Van Gogh. An ƙara ikon yin aiki tare da bangarori na eDP da yawa a lokaci guda.

para APU Renoir, ana aiwatar da tallafi don yin aiki tare da masu ɓoye ɓoye a cikin ƙwaƙwalwar bidiyo, Yayin da Radeon RX 6000 na baya (Navi 2x) da AMD GPUs, ana kunna tallafin Tallafi na Jiha (ASPM) ta tsohuwa, wanda a baya kawai aka kunna Navi 1x, Vega, da Polaris GPUs.

Don kwakwalwan kwamfuta na AMD, an ƙara tallafi don ƙwaƙwalwar ƙwaƙwalwar kama -da -wane (SVM) dangane da Tsarin Tsarin Gudanar da Ƙwaƙwalwar Heterogeneous (HMM), wanda ke ba da damar amfani da na'urori tare da sassan sarrafa ƙwaƙwalwar su (MMUs), waɗanda za su iya samun babban ƙwaƙwalwar ajiya. Ko da taimakon HMM, zaku iya tsara sararin adireshin haɗin gwiwa tsakanin GPU da CPU, inda GPU zai iya samun damar babban ƙwaƙwalwar aikin.

Daga sauran canje-canjen da suka yi fice:

• An ƙara tallafi na farko don fasahar AMD Smart Shift, wanda ke canza CPU da ƙarfin ikon GPU a cikin kwamfyutocin kwamfyutoci tare da kwakwalwar AMD da katin zane don haɓaka aiki a cikin wasanni, gyara bidiyo, da fassarar 3D.
• Ƙara mai sarrafa hoto mai sauƙi mai sauƙi ta amfani da EFI-GOP ko VESA framebuffer wanda firmware UEFI ko BIOS ya bayar don fitarwa.
• Ƙara tallafi don Rasberi Pi 400.
• Don kwamfyutocin Lenovo, an ƙara ƙirar WMI don canza saitunan BIOS ta hanyar / sys / class / firmware-halayen /.
• Fadada tallafi don USB4.