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Fri, 16 Sep 2022 20:25:41 GMT (envelope-from git) Date: Fri, 16 Sep 2022 20:25:41 GMT Message-Id: <202209162025.28GKPfYA026408@gitrepo.freebsd.org> To: src-committers@FreeBSD.org, dev-commits-src-all@FreeBSD.org, dev-commits-src-main@FreeBSD.org From: Konstantin Belousov Subject: git: 0ae364adcd8d - main - jemalloc: use auxv ELF_BSDF_VMNOOVERCOMMIT instead of sysctl("vm.overcommit") List-Id: Commit messages for all branches of the src repository List-Archive: https://lists.freebsd.org/archives/dev-commits-src-all List-Help: List-Post: List-Subscribe: List-Unsubscribe: Sender: owner-dev-commits-src-all@freebsd.org X-BeenThere: dev-commits-src-all@freebsd.org MIME-Version: 1.0 Content-Type: text/plain; charset=utf-8 Content-Transfer-Encoding: 8bit X-Git-Committer: kib X-Git-Repository: src X-Git-Refname: refs/heads/main X-Git-Reftype: branch X-Git-Commit: 0ae364adcd8d34bda3fe1a32e86025ba96df058a Auto-Submitted: auto-generated ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=freebsd.org; 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mx1.freebsd.org; none X-ThisMailContainsUnwantedMimeParts: N The branch main has been updated by kib: URL: https://cgit.FreeBSD.org/src/commit/?id=0ae364adcd8d34bda3fe1a32e86025ba96df058a commit 0ae364adcd8d34bda3fe1a32e86025ba96df058a Author: Konstantin Belousov AuthorDate: 2022-09-12 19:44:37 +0000 Commit: Konstantin Belousov CommitDate: 2022-09-16 20:23:52 +0000 jemalloc: use auxv ELF_BSDF_VMNOOVERCOMMIT instead of sysctl("vm.overcommit") Reviewed by: brooks, imp (previous version) Discussed with: markj Sponsored by: The FreeBSD Foundation MFC after: 2 weeks Differential revision: https://reviews.freebsd.org/D36540 --- contrib/jemalloc/src/pages.c | 8 ++++++++ 1 file changed, 8 insertions(+) diff --git a/contrib/jemalloc/src/pages.c b/contrib/jemalloc/src/pages.c index 3600443e2cb5..6b00eb0cb919 100644 --- a/contrib/jemalloc/src/pages.c +++ b/contrib/jemalloc/src/pages.c @@ -11,6 +11,7 @@ #ifdef JEMALLOC_SYSCTL_VM_OVERCOMMIT #include #ifdef __FreeBSD__ +#include #include #include #endif @@ -441,6 +442,13 @@ os_overcommits_sysctl(void) { int vm_overcommit; size_t sz; +#ifdef ELF_BSDF_VMNOOVERCOMMIT + int bsdflags; + + if (_elf_aux_info(AT_BSDFLAGS, &bsdflags, sizeof(bsdflags)) == 0) + return ((bsdflags & ELF_BSDF_VMNOOVERCOMMIT) == 0); +#endif + sz = sizeof(vm_overcommit); #if defined(__FreeBSD__) && defined(VM_OVERCOMMIT) int mib[2];