Date: Thu, 12 Oct 2023 10:15:34 GMT From: Zhenlei Huang <zlei@FreeBSD.org> To: src-committers@FreeBSD.org, dev-commits-src-all@FreeBSD.org, dev-commits-src-main@FreeBSD.org Subject: git: c415cfc8be1b - main - vm_phys: Add corresponding sysctl knob for loader tunable Message-ID: <202310121015.39CAFYZT073379@gitrepo.freebsd.org>
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The branch main has been updated by zlei: URL: https://cgit.FreeBSD.org/src/commit/?id=c415cfc8be1b732a80f1ada6d52091e08eeb9ab5 commit c415cfc8be1b732a80f1ada6d52091e08eeb9ab5 Author: Zhenlei Huang <zlei@FreeBSD.org> AuthorDate: 2023-10-12 10:14:49 +0000 Commit: Zhenlei Huang <zlei@FreeBSD.org> CommitDate: 2023-10-12 10:14:49 +0000 vm_phys: Add corresponding sysctl knob for loader tunable The loader tunable 'vm.numa.disabled' does not have corresponding sysctl MIB entry. Add it so that it can be retrieved, and `sysctl -T` will also report it correctly. Reviewed by: markj MFC after: 1 week Differential Revision: https://reviews.freebsd.org/D42138 --- sys/vm/vm_phys.c | 13 +++++++++---- 1 file changed, 9 insertions(+), 4 deletions(-) diff --git a/sys/vm/vm_phys.c b/sys/vm/vm_phys.c index 108297caac49..bc992bdfc58b 100644 --- a/sys/vm/vm_phys.c +++ b/sys/vm/vm_phys.c @@ -76,6 +76,12 @@ _Static_assert(sizeof(long long) >= sizeof(vm_paddr_t), #ifdef NUMA struct mem_affinity __read_mostly *mem_affinity; int __read_mostly *mem_locality; + +static int numa_disabled; +static SYSCTL_NODE(_vm, OID_AUTO, numa, CTLFLAG_RD | CTLFLAG_MPSAFE, 0, + "NUMA options"); +SYSCTL_INT(_vm_numa, OID_AUTO, disabled, CTLFLAG_RDTUN | CTLFLAG_NOFETCH, + &numa_disabled, 0, "NUMA-awareness in the allocators is disabled"); #endif int __read_mostly vm_ndomains = 1; @@ -627,15 +633,14 @@ vm_phys_register_domains(int ndomains, struct mem_affinity *affinity, int *locality) { #ifdef NUMA - int d, i; + int i; /* * For now the only override value that we support is 1, which * effectively disables NUMA-awareness in the allocators. */ - d = 0; - TUNABLE_INT_FETCH("vm.numa.disabled", &d); - if (d) + TUNABLE_INT_FETCH("vm.numa.disabled", &numa_disabled); + if (numa_disabled) ndomains = 1; if (ndomains > 1) {
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