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| author | Zhenlei Huang <zlei@FreeBSD.org> | 2023-10-12 10:14:49 +0000 |
|---|---|---|
| committer | Zhenlei Huang <zlei@FreeBSD.org> | 2023-10-24 14:35:51 +0000 |
| commit | 00b630cf6262bfc4ec0a434976c6544c57dc3e04 (patch) | |
| tree | a265df4dbec8f339d01cc3648ccb1425399e519b | |
| parent | 5c23cc232716a56d789a6c89681d520fcddc1696 (diff) | |
| download | src-00b630cf6262bfc4ec0a434976c6544c57dc3e04.tar.gz src-00b630cf6262bfc4ec0a434976c6544c57dc3e04.zip | |
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
Approved by: re (gjb)
MFC after: 1 week
Differential Revision: https://reviews.freebsd.org/D42138
(cherry picked from commit c415cfc8be1b732a80f1ada6d52091e08eeb9ab5)
(cherry picked from commit e26b7e8d02f648623ad343016533487634a16698)
| -rw-r--r-- | sys/vm/vm_phys.c | 13 |
1 files 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) { |