bpf: Don't prefill for unused bpf_mem_cache

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When the unit_size of a bpf_mem_cache is unmatched with the object_size
of the underlying slab cache, the bpf_mem_cache will not be used, and
the allocation will be redirected to a bpf_mem_cache with a bigger
unit_size instead, so there is no need to prefill for these
unused bpf_mem_caches.

Signed-off-by: Hou Tao <houtao1@huawei.com>
Link: https://lore.kernel.org/r/20230908133923.2675053-3-houtao@huaweicloud.com
Signed-off-by: Alexei Starovoitov <ast@kernel.org>

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Hou Tao 2023-09-08 21:39:21 +08:00 • committed by Alexei Starovoitov

parent d52b59315b

commit b1d53958b6

1 changed files with 14 additions and 2 deletions

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kernel/bpf/memalloc.c

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