Provide a LRU version of the existing BPF_MAP_TYPE_PERCPU_HASH
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| @@ -86,6 +86,7 @@ enum bpf_map_type { · 85 unmodified lines | |||
| 86 | BPF_MAP_TYPE_STACK_TRACE, | 86 | BPF_MAP_TYPE_STACK_TRACE, |
| 87 | BPF_MAP_TYPE_CGROUP_ARRAY, | 87 | BPF_MAP_TYPE_CGROUP_ARRAY, |
| 88 | BPF_MAP_TYPE_LRU_HASH, | 88 | BPF_MAP_TYPE_LRU_HASH, |
| 89 | BPF_MAP_TYPE_LRU_PERCPU_HASH, | ||
| 89 | }; | 90 | }; |
| 90 | 91 | ||
| 91 | enum bpf_prog_type { | 92 | enum bpf_prog_type { |
| @@ -108,7 +109,7 @@ enum bpf_prog_type { · 16 unmodified lines | |||
| 108 | 109 | ||
| 109 | #define BPF_F_NO_PREALLOC (1U << 0) | 110 | #define BPF_F_NO_PREALLOC (1U << 0) |
| 110 | /* Instead of having one common LRU list in the | 111 | /* Instead of having one common LRU list in the |
| 111 | * BPF_MAP_TYPE_LRU_HASH map, use a percpu LRU list | 112 | * BPF_MAP_TYPE_LRU_[PERCPU_]HASH map, use a percpu LRU list |
| 112 | * which can scale and perform better. | 113 | * which can scale and perform better. |
| 113 | * Note, the LRU nodes (including free nodes) cannot be moved | 114 | * Note, the LRU nodes (including free nodes) cannot be moved |
| 114 | * across different LRU lists. | 115 | * across different LRU lists. |