From: Gu Bowen <gubowen5@huawei.com> hulk inclusion category: feature bugzilla: https://gitee.com/openeuler/kernel/issues/ICA1GK -------------------------------- Add kfunc to get the number of per-cpu pages. Co-developed-by: GONG Ruiqi <gongruiqi1@huawei.com> Signed-off-by: GONG Ruiqi <gongruiqi1@huawei.com> Signed-off-by: Gu Bowen <gubowen5@huawei.com> --- kernel/bpf-rvi/common_kfuncs.c | 6 ++++++ 1 file changed, 6 insertions(+) diff --git a/kernel/bpf-rvi/common_kfuncs.c b/kernel/bpf-rvi/common_kfuncs.c index 5fbe3472fb88..717f186fbdd2 100644 --- a/kernel/bpf-rvi/common_kfuncs.c +++ b/kernel/bpf-rvi/common_kfuncs.c @@ -234,6 +234,11 @@ __bpf_kfunc unsigned long bpf_mem_failure(void) return atomic_long_read(&num_poisoned_pages) << (PAGE_SHIFT - 10); } +__bpf_kfunc unsigned long bpf_mem_percpu(void) +{ + return pcpu_nr_pages(); +} + BTF_SET8_START(bpf_common_kfuncs_ids) BTF_ID_FLAGS(func, bpf_mem_cgroup_from_task, KF_RET_NULL | KF_RCU) BTF_ID_FLAGS(func, bpf_task_active_pid_ns, KF_TRUSTED_ARGS) @@ -257,6 +262,7 @@ BTF_ID_FLAGS(func, bpf_mem_totalcma) BTF_ID_FLAGS(func, bpf_mem_freecma) BTF_ID_FLAGS(func, bpf_hugetlb_report_meminfo, KF_TRUSTED_ARGS) BTF_ID_FLAGS(func, bpf_mem_failure) +BTF_ID_FLAGS(func, bpf_mem_percpu) BTF_SET8_END(bpf_common_kfuncs_ids) static const struct btf_kfunc_id_set bpf_common_kfuncs_set = { -- 2.25.1