{"id":53168,"date":"2019-12-06T00:00:00","date_gmt":"2019-12-05T21:00:00","guid":{"rendered":"https:\/\/prohoster.info\/blog\/blog_prohoster\/reliz-yadra-linux-5-4"},"modified":"2020-02-18T14:01:33","modified_gmt":"2020-02-18T11:01:33","slug":"reliz-yadra-linux-5-4-2","status":"publish","type":"post","link":"https:\/\/prohoster.info\/fr\/blog\/news\/reliz-yadra-linux-5-4-2","title":{"rendered":"Sortie du noyau Linux 5.4","gt_translate_keys":[{"key":"rendered","format":"text"}]},"content":{"rendered":"<p><strong>Les changements les plus notables :<\/strong><\/p>\n<ul>\n<noindex><\/p>\n<li>Le module lockdown, qui limite l'acc\u00e8s de l'utilisateur root aux fichiers et interfaces du noyau. <a rel=\"nofollow\" href=\"https:\/\/lwn.net\/Articles\/791863\/\">D\u00e9tails.<\/a><\/li>\n<p><\/noindex><\/p>\n<li>Le syst\u00e8me de fichiers virtiofs pour le passage de certains r\u00e9pertoires de l'h\u00f4te aux syst\u00e8mes invit\u00e9s. L'interaction se fait selon le sch\u00e9ma \u00ab client-serveur \u00bb via FUSE. <a rel=\"nofollow\" href=\"https:\/\/www.kernel.org\/doc\/html\/latest\/filesystems\/virtiofs.html\">D\u00e9tails.<\/a><\/li>\n<li>Le m\u00e9canisme de contr\u00f4le d'int\u00e9grit\u00e9 des fichiers fs-verity. Il est similaire \u00e0 dm-verity, mais fonctionne au niveau des syst\u00e8mes de fichiers Ext4 et F2FS, et non des dispositifs de blocs. <a rel=\"nofollow\" href=\"https:\/\/www.kernel.org\/doc\/html\/latest\/filesystems\/fsverity.html\">D\u00e9tails.<\/a><\/li>\n<li>Le module dm-clone pour copier des dispositifs de blocs uniquement en lecture, tout en permettant l'\u00e9criture de donn\u00e9es directement pendant le processus de clonage. <a rel=\"nofollow\" href=\"https:\/\/www.kernel.org\/doc\/html\/latest\/admin-guide\/device-mapper\/dm-clone.html\">D\u00e9tails.<\/a><\/li>\n<li>Support des processeurs graphiques AMD Navi 12\/14 et des APU des familles Arcturus et Renoir. Le travail a \u00e9galement commenc\u00e9 sur le support des futures graphismes Intel Tiger Lake.<\/li>\n<li>Les drapeaux MADV_COLD et MADV_PAGEOUT pour l'appel syst\u00e8me madvise(). Ils permettent de d\u00e9terminer quelles donn\u00e9es en m\u00e9moire ne sont pas critiques pour le fonctionnement du processus ou qui ne seront pas n\u00e9cessaires durant longtemps, afin de pouvoir \u00e9vacuer ces donn\u00e9es en m\u00e9moire secondaire et lib\u00e9rer de la m\u00e9moire.<\/li>\n<li>Le syst\u00e8me de fichiers EROFS, tr\u00e8s l\u00e9ger et rapide, exclusivement en lecture, a \u00e9t\u00e9 d\u00e9plac\u00e9 de la section Staging, id\u00e9al pour le stockage de firmwares et livecd. <a rel=\"nofollow\" href=\"https:\/\/lwn.net\/Articles\/796687\/\">D\u00e9tails.<\/a><\/li>\n<li>Ajout d'un driver pour le syst\u00e8me de fichiers exFAT dans la section Staging, d\u00e9velopp\u00e9 par Samsung.<\/li>\n<li>Le m\u00e9canisme haltpoll pour am\u00e9liorer la performance des syst\u00e8mes invit\u00e9s. Il permet aux invit\u00e9s d'obtenir du temps CPU suppl\u00e9mentaire avant de retourner le CPU \u00e0 l'hyperviseur. <a rel=\"nofollow\" href=\"https:\/\/git.kernel.org\/pub\/scm\/linux\/kernel\/git\/torvalds\/linux.git\/plain\/Documentation\/virtual\/guest-halt-polling.txt?id=2cffe9f6b96fece065ee8522673c90e92ef2085d\">D\u00e9tails.<\/a><\/li>\n<li>Le contr\u00f4leur blk-iocost pour r\u00e9partir les entr\u00e9es-sorties entre cgroup. Ce nouveau contr\u00f4leur se concentre sur le co\u00fbt des futures op\u00e9rations IO. <a rel=\"nofollow\" href=\"https:\/\/lwn.net\/Articles\/792256\/\">D\u00e9tails.<\/a><\/li>\n<li>Espaces de noms pour les symboles des modules du noyau. <a rel=\"nofollow\" href=\"https:\/\/www.kernel.org\/doc\/html\/latest\/core-api\/symbol-namespaces.html\">D\u00e9tails.<\/a><\/li>\n<li>Le travail sur l'int\u00e9gration des correctifs en temps r\u00e9el dans le noyau se poursuit.<\/li>\n<li>Le m\u00e9canisme io_uring a \u00e9t\u00e9 am\u00e9lior\u00e9.<\/li>\n<li>Les performances avec les grands r\u00e9pertoires sur XFS ont \u00e9t\u00e9 acc\u00e9l\u00e9r\u00e9es.<\/li>\n<li>Des dizaines d'autres modifications.<\/li>\n<\/ul>\n<p>Source : <a \ncontent=\"nofollow\" rel=\"nofollow\" href=\"http:\/\/www.linux.org.ru\/news\/kernel\/15371555\">linux.org.ru<\/a><\/p>","protected":false,"gt_translate_keys":[{"key":"rendered","format":"html"}]},"excerpt":{"rendered":"<p>\u041d\u0430\u0438\u0431\u043e\u043b\u0435\u0435 \u0437\u0430\u043c\u0435\u0442\u043d\u044b\u0435 \u0438\u0437\u043c\u0435\u043d\u0435\u043d\u0438\u044f: \u041c\u043e\u0434\u0443\u043b\u044c lockdown, \u043e\u0433\u0440\u0430\u043d\u0438\u0447\u0438\u0432\u0430\u044e\u0449\u0438\u0439 \u0434\u043e\u0441\u0442\u0443\u043f \u043f\u043e\u043b\u044c\u0437\u043e\u0432\u0430\u0442\u0435\u043b\u044f root \u043a \u0444\u0430\u0439\u043b\u0430\u043c \u0438 \u0438\u043d\u0442\u0435\u0440\u0444\u0435\u0439\u0441\u0430\u043c \u044f\u0434\u0440\u0430. \u041f\u043e\u0434\u0440\u043e\u0431\u043d\u043e\u0441\u0442\u0438. \u0424\u0430\u0439\u043b\u043e\u0432\u0430\u044f \u0441\u0438\u0441\u0442\u0435\u043c\u0430 virtiofs \u0434\u043b\u044f \u043f\u0440\u043e\u0431\u0440\u043e\u0441\u0430 \u043e\u043f\u0440\u0435\u0434\u0435\u043b\u0451\u043d\u043d\u044b\u0445 \u043a\u0430\u0442\u0430\u043b\u043e\u0433\u043e\u0432 \u0445\u043e\u0441\u0442\u0430 \u0432 \u0433\u043e\u0441\u0442\u0435\u0432\u044b\u0435 \u0441\u0438\u0441\u0442\u0435\u043c\u044b. \u0412\u0437\u0430\u0438\u043c\u043e\u0434\u0435\u0439\u0441\u0442\u0432\u0438\u0435 \u0438\u0434\u0451\u0442 \u043f\u043e \u0441\u0445\u0435\u043c\u0435 &laquo;\u043a\u043b\u0438\u0435\u043d\u0442-\u0441\u0435\u0440\u0432\u0435\u0440&raquo; \u0447\u0435\u0440\u0435\u0437 FUSE. \u041f\u043e\u0434\u0440\u043e\u0431\u043d\u043e\u0441\u0442\u0438. \u041c\u0435\u0445\u0430\u043d\u0438\u0437\u043c \u043a\u043e\u043d\u0442\u0440\u043e\u043b\u044f \u0446\u0435\u043b\u043e\u0441\u0442\u043d\u043e\u0441\u0442\u0438 \u0444\u0430\u0439\u043b\u043e\u0432 fs-verity. \u0410\u043d\u0430\u043b\u043e\u0433\u0438\u0447\u0435\u043d dm-verity, \u043d\u043e \u0440\u0430\u0431\u043e\u0442\u0430\u0435\u0442 \u043d\u0430 \u0443\u0440\u043e\u0432\u043d\u0435 \u0444\u0430\u0439\u043b\u043e\u0432\u044b\u0445 \u0441\u0438\u0441\u0442\u0435\u043c Ext4 \u0438 F2FS, \u0430 \u043d\u0435 \u0431\u043b\u043e\u0447\u043d\u044b\u0445 \u0443\u0441\u0442\u0440\u043e\u0439\u0441\u0442\u0432. \u041f\u043e\u0434\u0440\u043e\u0431\u043d\u043e\u0441\u0442\u0438. [&hellip;]<\/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-53168","post","type-post","status-publish","format-standard","hentry","category-news"],"aioseo_notices":[],"aioseo_head":"\n\t\t<!-- All in One SEO 5.0.2 - aioseo.com -->\n\t<meta name=\"description\" content=\"\u041d\u0430\u0438\u0431\u043e\u043b\u0435\u0435 \u0437\u0430\u043c\u0435\u0442\u043d\u044b\u0435 \u0438\u0437\u043c\u0435\u043d\u0435\u043d\u0438\u044f: \u041c\u043e\u0434\u0443\u043b\u044c lockdown, \u043e\u0433\u0440\u0430\u043d\u0438\u0447\u0438\u0432\u0430\u044e\u0449\u0438\u0439 \u0434\u043e\u0441\u0442\u0443\u043f \u043f\u043e\u043b\u044c\u0437\u043e\u0432\u0430\u0442\u0435\u043b\u044f root \u043a \u0444\u0430\u0439\u043b\u0430\u043c \u0438 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