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authorNamhyung Kim <namhyung@kernel.org>2024-10-10 16:25:05 -0700
committerAlexei Starovoitov <ast@kernel.org>2024-10-16 09:21:18 -0700
commita496d0cdc84d81fbfd2026ef41c8ae9385d01fbb (patch)
treef13f8b1d43a4c52e13ad58fea028a40574ac88d0 /tools/perf/scripts/python/call-graph-from-postgresql.py
parentmm/bpf: Add bpf_get_kmem_cache() kfunc (diff)
downloadwireguard-linux-a496d0cdc84d81fbfd2026ef41c8ae9385d01fbb.tar.xz
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selftests/bpf: Add a test for kmem_cache_iter
The test traverses all slab caches using the kmem_cache_iter and save the data into slab_result array map. And check if current task's pointer is from "task_struct" slab cache using bpf_get_kmem_cache(). Also compare the result array with /proc/slabinfo if available (when CONFIG_SLUB_DEBUG is on). Note that many of the fields in the slabinfo are transient, so it only compares the name and objsize fields. Signed-off-by: Namhyung Kim <namhyung@kernel.org> Link: https://lore.kernel.org/r/20241010232505.1339892-4-namhyung@kernel.org Signed-off-by: Alexei Starovoitov <ast@kernel.org>
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