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bpf: Add bpf_selem_free()

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This patch refactors the selem freeing logic into bpf_selem_free().
It is a preparation work for a later patch using
bpf_mem_cache_alloc/free. The other kfree(selem) cases
are also changed to bpf_selem_free(..., reuse_now = true).

Signed-off-by: Martin KaFai Lau <martin.lau@kernel.org>
Link: https://lore.kernel.org/r/20230308065936.1550103-10-martin.lau@linux.dev
Signed-off-by: Alexei Starovoitov <ast@kernel.org>
This commit is contained in:
Martin KaFai Lau
2023-03-07 22:59:28 -08:00
committed by Alexei Starovoitov
parent f8ccf30c17
commit c0d63f3091
3 changed files with 19 additions and 8 deletions
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4
include/linux/bpf_local_storage.h
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@@ -152,6 +152,10 @@ struct bpf_local_storage_elem *
bpf_selem_alloc(struct bpf_local_storage_map *smap, void *owner, void *value,
bool charge_mem, gfp_t gfp_flags);
void bpf_selem_free(struct bpf_local_storage_elem *selem,
struct bpf_local_storage_map *smap,
bool reuse_now);
int
bpf_local_storage_alloc(void *owner,
struct bpf_local_storage_map *smap,