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[209.85.167.52]) by smtp.gmail.com with ESMTPSA id q24-20020a2e9698000000b0024dc3ec14eesm389014lji.63.2022.04.19.12.20.56 for (version=TLS1_3 cipher=TLS_AES_128_GCM_SHA256 bits=128/128); Tue, 19 Apr 2022 12:20:56 -0700 (PDT) Received: by mail-lf1-f52.google.com with SMTP id w1so7757895lfa.4 for ; Tue, 19 Apr 2022 12:20:56 -0700 (PDT) X-Received: by 2002:a05:6512:3c93:b0:44b:4ba:c334 with SMTP id h19-20020a0565123c9300b0044b04bac334mr12102115lfv.27.1650396055810; Tue, 19 Apr 2022 12:20:55 -0700 (PDT) MIME-Version: 1.0 References: <20220415164413.2727220-1-song@kernel.org> <4AD023F9-FBCE-4C7C-A049-9292491408AA@fb.com> <88eafc9220d134d72db9eb381114432e71903022.camel@intel.com> In-Reply-To: From: Linus Torvalds Date: Tue, 19 Apr 2022 12:20:39 -0700 X-Gmail-Original-Message-ID: Message-ID: Subject: Re: [PATCH v4 bpf 0/4] vmalloc: bpf: introduce VM_ALLOW_HUGE_VMAP To: Mike Rapoport Cc: Song Liu , "Edgecombe, Rick P" , "mcgrof@kernel.org" , "linux-kernel@vger.kernel.org" , "bpf@vger.kernel.org" , "hch@infradead.org" , "ast@kernel.org" , "daniel@iogearbox.net" , "linux-mm@kvack.org" , "song@kernel.org" , Kernel Team , "pmladek@suse.com" , "akpm@linux-foundation.org" , "hpa@zytor.com" , "dborkman@redhat.com" , "edumazet@google.com" , "bp@alien8.de" , "mbenes@suse.cz" , "imbrenda@linux.ibm.com" Content-Type: text/plain; charset="UTF-8" X-Rspam-User: X-Rspamd-Server: rspam07 X-Rspamd-Queue-Id: 9D4AEC000F X-Stat-Signature: q6qbdwuk15135zmzxt55fusc1136apsf Authentication-Results: imf22.hostedemail.com; dkim=pass header.d=linux-foundation.org header.s=google header.b=QvNx6Fxe; spf=pass (imf22.hostedemail.com: domain of torvalds@linuxfoundation.org designates 209.85.167.48 as permitted sender) smtp.mailfrom=torvalds@linuxfoundation.org; dmarc=none X-HE-Tag: 1650396059-820271 X-Bogosity: Ham, tests=bogofilter, spamicity=0.000000, version=1.2.4 Sender: owner-linux-mm@kvack.org Precedence: bulk X-Loop: owner-majordomo@kvack.org List-ID: On Tue, Apr 19, 2022 at 11:42 AM Mike Rapoport wrote: > > I'd say that bpf_prog_pack was a cure for symptoms and this project tries > to address more general problem. > But you are right, it'll take some time and won't land in 5.19. Just to update people: I've just applied Song's [1/4] patch, which means that the whole current hugepage vmalloc thing is effectively disabled (because nothing opts in). And I suspect that will be the status for 5.18, unless somebody comes up with some very strong arguments for (re-)starting using huge pages. Linus