Date: Fri, 30 Sep 2022 02:04:14 GMT
From: Konstantin Belousov <kib@FreeBSD.org>
To: src-committers@FreeBSD.org, dev-commits-src-all@FreeBSD.org, dev-commits-src-branches@FreeBSD.org
Subject: git: 19a2e5ad5998 - stable/13 - jemalloc: use auxv ELF_BSDF_VMNOOVERCOMMIT instead of sysctl("vm.overcommit")
Message-ID: <202209300204.28U24E5x099215@gitrepo.freebsd.org>
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The branch stable/13 has been updated by kib: URL: https://cgit.FreeBSD.org/src/commit/?id=19a2e5ad599895c422eaf458484044b904b99bbd commit 19a2e5ad599895c422eaf458484044b904b99bbd Author: Konstantin Belousov <kib@FreeBSD.org> AuthorDate: 2022-09-12 19:44:37 +0000 Commit: Konstantin Belousov <kib@FreeBSD.org> CommitDate: 2022-09-30 00:29:10 +0000 jemalloc: use auxv ELF_BSDF_VMNOOVERCOMMIT instead of sysctl("vm.overcommit") (cherry picked from commit 0ae364adcd8d34bda3fe1a32e86025ba96df058a) --- 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 <sys/sysctl.h> #ifdef __FreeBSD__ +#include <sys/auxv.h> #include <vm/vm_param.h> #include <vm/vm.h> #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];
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