Author | Tokens | Token Proportion | Commits | Commit Proportion |
---|---|---|---|---|
David Vernet | 688 | 95.96% | 5 | 62.50% |
Yafang Shao | 27 | 3.77% | 1 | 12.50% |
Jose E. Marchesi | 1 | 0.14% | 1 | 12.50% |
Alexei Starovoitov | 1 | 0.14% | 1 | 12.50% |
Total | 717 | 8 |
/* SPDX-License-Identifier: GPL-2.0 */ /* Copyright (c) 2023 Meta Platforms, Inc. and affiliates. */ #ifndef _CPUMASK_COMMON_H #define _CPUMASK_COMMON_H #include "errno.h" #include <stdbool.h> int err; #define private(name) SEC(".bss." #name) __attribute__((aligned(8))) private(MASK) static struct bpf_cpumask __kptr * global_mask; struct __cpumask_map_value { struct bpf_cpumask __kptr * cpumask; }; struct array_map { __uint(type, BPF_MAP_TYPE_ARRAY); __type(key, int); __type(value, struct __cpumask_map_value); __uint(max_entries, 1); } __cpumask_map SEC(".maps"); struct bpf_cpumask *bpf_cpumask_create(void) __ksym __weak; void bpf_cpumask_release(struct bpf_cpumask *cpumask) __ksym __weak; struct bpf_cpumask *bpf_cpumask_acquire(struct bpf_cpumask *cpumask) __ksym __weak; u32 bpf_cpumask_first(const struct cpumask *cpumask) __ksym __weak; u32 bpf_cpumask_first_zero(const struct cpumask *cpumask) __ksym __weak; u32 bpf_cpumask_first_and(const struct cpumask *src1, const struct cpumask *src2) __ksym __weak; void bpf_cpumask_set_cpu(u32 cpu, struct bpf_cpumask *cpumask) __ksym __weak; void bpf_cpumask_clear_cpu(u32 cpu, struct bpf_cpumask *cpumask) __ksym __weak; bool bpf_cpumask_test_cpu(u32 cpu, const struct cpumask *cpumask) __ksym __weak; bool bpf_cpumask_test_and_set_cpu(u32 cpu, struct bpf_cpumask *cpumask) __ksym __weak; bool bpf_cpumask_test_and_clear_cpu(u32 cpu, struct bpf_cpumask *cpumask) __ksym __weak; void bpf_cpumask_setall(struct bpf_cpumask *cpumask) __ksym __weak; void bpf_cpumask_clear(struct bpf_cpumask *cpumask) __ksym __weak; bool bpf_cpumask_and(struct bpf_cpumask *cpumask, const struct cpumask *src1, const struct cpumask *src2) __ksym __weak; void bpf_cpumask_or(struct bpf_cpumask *cpumask, const struct cpumask *src1, const struct cpumask *src2) __ksym __weak; void bpf_cpumask_xor(struct bpf_cpumask *cpumask, const struct cpumask *src1, const struct cpumask *src2) __ksym __weak; bool bpf_cpumask_equal(const struct cpumask *src1, const struct cpumask *src2) __ksym __weak; bool bpf_cpumask_intersects(const struct cpumask *src1, const struct cpumask *src2) __ksym __weak; bool bpf_cpumask_subset(const struct cpumask *src1, const struct cpumask *src2) __ksym __weak; bool bpf_cpumask_empty(const struct cpumask *cpumask) __ksym __weak; bool bpf_cpumask_full(const struct cpumask *cpumask) __ksym __weak; void bpf_cpumask_copy(struct bpf_cpumask *dst, const struct cpumask *src) __ksym __weak; u32 bpf_cpumask_any_distribute(const struct cpumask *src) __ksym __weak; u32 bpf_cpumask_any_and_distribute(const struct cpumask *src1, const struct cpumask *src2) __ksym __weak; u32 bpf_cpumask_weight(const struct cpumask *cpumask) __ksym __weak; void bpf_rcu_read_lock(void) __ksym __weak; void bpf_rcu_read_unlock(void) __ksym __weak; static inline const struct cpumask *cast(struct bpf_cpumask *cpumask) { return (const struct cpumask *)cpumask; } static inline struct bpf_cpumask *create_cpumask(void) { struct bpf_cpumask *cpumask; cpumask = bpf_cpumask_create(); if (!cpumask) { err = 1; return NULL; } if (!bpf_cpumask_empty(cast(cpumask))) { err = 2; bpf_cpumask_release(cpumask); return NULL; } return cpumask; } static inline struct __cpumask_map_value *cpumask_map_value_lookup(void) { u32 key = 0; return bpf_map_lookup_elem(&__cpumask_map, &key); } static inline int cpumask_map_insert(struct bpf_cpumask *mask) { struct __cpumask_map_value local, *v; long status; struct bpf_cpumask *old; u32 key = 0; local.cpumask = NULL; status = bpf_map_update_elem(&__cpumask_map, &key, &local, 0); if (status) { bpf_cpumask_release(mask); return status; } v = bpf_map_lookup_elem(&__cpumask_map, &key); if (!v) { bpf_cpumask_release(mask); return -ENOENT; } old = bpf_kptr_xchg(&v->cpumask, mask); if (old) { bpf_cpumask_release(old); return -EEXIST; } return 0; } #endif /* _CPUMASK_COMMON_H */
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