Daniel T. Lee 7984c381bb samples/bpf: fix broken map lookup probe ... [ Upstream commit d93a7cf6ca ] In the commit 7c4cd051ad ("bpf: Fix syscall's stackmap lookup potential deadlock"), a potential deadlock issue was addressed, which resulted in *_map_lookup_elem not triggering BPF programs. (prior to lookup, bpf_disable_instrumentation() is used) To resolve the broken map lookup probe using "htab_map_lookup_elem", this commit introduces an alternative approach. Instead, it utilize "bpf_map_copy_value" and apply a filter specifically for the hash table with map_type. Signed-off-by: Daniel T. Lee <danieltimlee@gmail.com> Fixes: 7c4cd051ad ("bpf: Fix syscall's stackmap lookup potential deadlock") Link: https://lore.kernel.org/r/20230818090119.477441-8-danieltimlee@gmail.com Signed-off-by: Alexei Starovoitov <ast@kernel.org> Signed-off-by: Sasha Levin <sashal@kernel.org>		2023-09-13 09:42:34 +02:00
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bpf	samples/bpf: fix broken map lookup probe	2023-09-13 09:42:34 +02:00
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ftrace	samples: ftrace: Save required argument registers in sample trampolines	2023-07-23 13:49:44 +02:00
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