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bpf: Refactor codes into bpf_local_storage_destroy

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This patch first renames bpf_local_storage_unlink_nolock to
bpf_local_storage_destroy(). It better reflects that it is only
used when the storage's owner (sk/task/cgrp/inode) is being kfree().

All bpf_local_storage_destroy's caller is taking the spin lock and
then free the storage. This patch also moves these two steps into
the bpf_local_storage_destroy.

This is a preparation work for a later patch that uses
bpf_mem_cache_alloc/free in the bpf_local_storage.

Signed-off-by: Martin KaFai Lau <martin.lau@kernel.org>
Link: https://lore.kernel.org/r/20230308065936.1550103-3-martin.lau@linux.dev
Signed-off-by: Alexei Starovoitov <ast@kernel.org>
This commit is contained in:
Martin KaFai Lau
2023-03-07 22:59:21 -08:00
committed by Alexei Starovoitov
parent 4cbd23cc92
commit 2ffcb6fc50
6 changed files with 11 additions and 33 deletions
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2
include/linux/bpf_local_storage.h
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@@ -128,7 +128,7 @@ bpf_local_storage_lookup(struct bpf_local_storage *local_storage,
struct bpf_local_storage_map *smap,
bool cacheit_lockit);
bool bpf_local_storage_unlink_nolock(struct bpf_local_storage *local_storage);
void bpf_local_storage_destroy(struct bpf_local_storage *local_storage);
void bpf_local_storage_map_free(struct bpf_map *map,
struct bpf_local_storage_cache *cache,