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bpf: Replace get_next_cpu() with cpumask_next_wrap()

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The get_next_cpu() function was only used in one place to find
the next possible CPU, which can be replaced by cpumask_next_wrap().

Signed-off-by: Fushuai Wang <wangfushuai@baidu.com>
Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
Acked-by: Daniel Borkmann <daniel@iogearbox.net>
Link: https://lore.kernel.org/bpf/20250818032344.23229-1-wangfushuai@baidu.com
This commit is contained in:
Fushuai Wang 2025-08-18 11:23:44 +08:00 • committed by Daniel Borkmann
parent 1274163035
commit d87fdb1f27
1 changed files with 1 additions and 9 deletions
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10
kernel/bpf/bpf_lru_list.c
View file

@ -19,14 +19,6 @@
#define LOCAL_PENDING_LIST_IDX LOCAL_LIST_IDX(BPF_LRU_LOCAL_LIST_T_PENDING)
#define IS_LOCAL_LIST_TYPE(t) ((t) >= BPF_LOCAL_LIST_T_OFFSET)
static int get_next_cpu(int cpu)
{
cpu = cpumask_next(cpu, cpu_possible_mask);
if (cpu >= nr_cpu_ids)
cpu = cpumask_first(cpu_possible_mask);
return cpu;
}
/* Local list helpers */
static struct list_head *local_free_list(struct bpf_lru_locallist *loc_l)
{
@ -482,7 +474,7 @@ static struct bpf_lru_node *bpf_common_lru_pop_free(struct bpf_lru *lru,
raw_spin_unlock_irqrestore(&steal_loc_l->lock, flags);
steal = get_next_cpu(steal);
steal = cpumask_next_wrap(steal, cpu_possible_mask);
} while (!node && steal != first_steal);
loc_l->next_steal = steal;