Bayan watanni biyu na ci gaba, An gabatar da Linus Torvalds kwanakin baya kaddamar dazuwa sabon sigar Linux kernel 5.17.
Daga cikin sanannun canje-canje yana nuna sabon tsarin gudanar da ayyuka don masu sarrafawa AMD, goyon bayan shirye-shiryen BPF kwamfyutocin da aka haɗo, canji daga janareta na lambar bazuwar zuwa BLAKE2s algorithm, sabon fscache baya zuwa cache tsarin fayil na cibiyar sadarwa, a tsakanin sauran abubuwa.
Sabuwar sigar ta sami gyare-gyaren 14203 daga masu haɓakawa na 1995, girman facin shine 37 MB (canje-canjen ya shafi fayilolin 11366, an ƙara layukan lambar 506043, an cire layin 250954).
Babban sabon labari na kernel na Linux 5.17
A cikin wannan sabon sigar ana aiwatar da yuwuwar taswirar gida na ID na mai amfani da tsarin fayil ɗin da aka ɗora, wanda ake amfani da shi don taswirar fayilolin wani mai amfani akan wani bangare na waje wanda aka saka tare da wani mai amfani akan tsarin yanzu. Ƙarin fasalin yana ba ku damar yin amfani da taswirar akai-akai akan tsarin fayil waɗanda aka riga aka yi amfani da taswirar don su.
Tsarin tsarin fscache an sake rubuta shi gaba daya. Sabon aiwatarwa an bambanta ta hanyar sauƙaƙawa mai mahimmanci na lambar da kuma maye gurbin rikitattun shirye-shirye da ayyukan bin diddigin abubuwa tare da mafi sauƙi hanyoyin. Ana aiwatar da goyan bayan sabon fscache a cikin tsarin fayil na CIFS.
An inganta Btrfs don yin rajista da ayyukan fsync don manyan kundayen adireshi, waɗanda aka aiwatar ta hanyar kwafin maɓallan fihirisa kawai da rage yawan adadin metadata da aka yi rikodi, da ƙididdigewa da bincike ta hanyar girman rikodin sarari kyauta an bayar da tallafi, wanda rage jinkiri da neman lokaci da kusan 30%, wanda ya ba da damar katse ayyukan lalata.
Ext4 yayi ƙaura zuwa sabon API na Dutsen wanda ke raba matakan tantance zaɓuɓɓukan dutsen da daidaita babban katange, tare da goyan bayan lazytime da zaɓuɓɓukan hawan nolazytime an cire su, waɗanda aka ƙara azaman canji na ɗan lokaci don sauƙaƙe sauyawa daga util-linux zuwa amfani da tuta MS_LAZYTIME da ƙarin tallafi don saiti da alamun karantawa a cikin FS (ioctl FS_IOC_GETFSLABEL da FS_IOC_SETFSLABEL).
Mai sarrafawa an ƙara amd-pstate don samar da sarrafa mitoci mai ƙarfi don mafi kyawun aiki. Direban yana goyan bayan sabbin AMD CPUs da APUs, gami da wasu guntuwar tsarar Zen 2 da Zen 3, kuma an haɓaka su tare da haɗin gwiwar Valve don haɓaka ingantaccen sarrafa wutar lantarki. Don sauyawar mitar daidaitawa, ana amfani da tsarin CPPC (Haɗin Gudanar da Ayyukan Haɗin gwiwa), wanda ke ba ku damar canza alamun daidai daidai (ba a iyakance ga matakan aiki uku ba) da amsa da sauri zuwa canje-canje a cikin jihar fiye da yadda aka yi amfani da shi a baya ACPI na tushen P-jihar direbobi. (mitar CPU).
A gefe guda, an haskaka cewa Ana ba da shawarar aiwatar da sabuntawa daga pseudorandom lamba janareta RDRAND, wanda ke da alhakin aiwatar da na'urorin / dev / bazuwar da / dev / urandom na'urorin, sananne don canzawa zuwa amfani da aikin hash na BLAKE2s maimakon SHA1 don ayyukan haɗin gwiwar entropy. Canjin ya ba da damar haɓaka tsaro na janareta na lambar bazuwar ta hanyar kawar da matsala ta SHA1 algorithm da cire sake rubutawa na farkon RNG. Tun da BLAKE2s algorithm yana gaba da SHA1 dangane da aiki, amfani da shi kuma yana da tasiri mai kyau akan aiki.
Ara kariya daga raunin na'ura mai sarrafawa wanda ya haifar da kisa na umarni bayan ayyukan tsalle-tsalle mara sharadi. Matsalar ta taso ne daga aiwatar da umarnin da aka riga aka tsara nan da nan tare da bin umarnin tsalle a ƙwaƙwalwar ajiya (SLS, Hasashen Layin Madaidaici). Ba da damar tsaro yana buƙatar ginawa tare da sigar GCC 12, wanda a halin yanzu yana kan gwaji.
Tsarin tsarin drm (Mai sarrafa kai tsaye) kuma direban i915 ya ƙara tallafi don allo don nuna mahimman bayanai, alal misali, wasu kwamfutoci suna sanye da allo tare da ginanniyar yanayin kallon Sirri, wanda ke sa yana da wahala a gani daga waje. Canje-canjen da aka ƙara yana ba ku damar toshe ƙwararrun direbobi don irin wannan fuska da sarrafa hanyoyin bincike masu zaman kansu ta hanyar saita kaddarorin a cikin direbobin KMS na yau da kullun.
Mai sarrafawa amdgpu ya haɗa da goyan baya don fasahar lalata STB (Smart Trace Buffer) don duk AMD GPUs waɗanda ke goyan bayan sa. STB yana sauƙaƙe nazarin gazawa kuma yana gano tushen matsalolin ta hanyar adanawa a cikin maɓalli na musamman game da ayyukan da aka yi kafin gazawar ƙarshe.
Daga sauran canje-canjen da suka yi fice:
- Direban i915 yana ƙara tallafi don kwakwalwan kwamfuta na Intel Raptor Lake S kuma yana ba da damar goyan baya ga zanen Intel Alder Lake P ta tsohuwa.
- Direbobin fbcon/fbdev sun dawo da tallafi don saurin gungurawa hardware a cikin na'ura wasan bidiyo.
- Ci gaba da haɓaka canje-canje don tallafawa guntuwar Apple M1.
- Aiwatar da ikon yin amfani da direban simpledrm akan tsarin tare da guntu Apple M1 don samar da fitarwa ta hanyar buffer firam wanda aka samar da firmware.
- bpf_loop() mai kulawa a cikin tsarin eBPF, wanda ke ba da madadin hanyar tsara madaukai a cikin shirye-shiryen eBPF, cikin sauri da sauƙi ga mai tabbatarwa don tabbatarwa.
Idan kun kasance sha'awar ƙarin sani game da shi, zaka iya duba bayanan A cikin mahaɗin mai zuwa.