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authorMasami Hiramatsu <mhiramat@kernel.org>2018-01-13 02:54:33 +0900
committerAlexei Starovoitov <ast@kernel.org>2018-01-12 17:33:38 -0800
commit66665ad2f1023d3ffb0c12eea9e0a6d0b613ecb3 (patch)
tree2ccb32066d1acf7d5d9f56d881cd80133dba8f15 /arch
parenttracing/kprobe: bpf: Check error injectable event is on function entry (diff)
downloadlinux-dev-66665ad2f1023d3ffb0c12eea9e0a6d0b613ecb3.tar.xz
linux-dev-66665ad2f1023d3ffb0c12eea9e0a6d0b613ecb3.zip
tracing/kprobe: bpf: Compare instruction pointer with original one
Compare instruction pointer with original one on the stack instead using per-cpu bpf_kprobe_override flag. This patch also consolidates reset_current_kprobe() and preempt_enable_no_resched() blocks. Those can be done in one place. Signed-off-by: Masami Hiramatsu <mhiramat@kernel.org> Reviewed-by: Josef Bacik <jbacik@fb.com> Signed-off-by: Alexei Starovoitov <ast@kernel.org>
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