From: Hou Tao houtao1@huawei.com
[ Upstream commit 36024d023d139a0c8b552dc3b7f4dc7b4c139e8f ]
According to the definition of sizes[NUM_CACHES], when the size passed to bpf_mem_cache_size() is 256, it should return 6 instead 7.
Fixes: 7c8199e24fa0 ("bpf: Introduce any context BPF specific memory allocator.") Signed-off-by: Hou Tao houtao1@huawei.com Acked-by: Yonghong Song yhs@fb.com Link: https://lore.kernel.org/r/20230118084630.3750680-1-houtao@huaweicloud.com Signed-off-by: Alexei Starovoitov ast@kernel.org Signed-off-by: Sasha Levin sashal@kernel.org --- kernel/bpf/memalloc.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/kernel/bpf/memalloc.c b/kernel/bpf/memalloc.c index 4901fa1048cd..6187c28d266f 100644 --- a/kernel/bpf/memalloc.c +++ b/kernel/bpf/memalloc.c @@ -71,7 +71,7 @@ static int bpf_mem_cache_idx(size_t size) if (size <= 192) return size_index[(size - 1) / 8] - 1;
- return fls(size - 1) - 1; + return fls(size - 1) - 2; }
#define NUM_CACHES 11