| commit | 92ace9991da08827e809c2d120108a96a281e7fc | [log] [tgz] |
|---|---|---|
| author | Josef Bacik <jbacik@fb.com> | Mon Dec 11 11:36:46 2017 -0500 |
| committer | Alexei Starovoitov <ast@kernel.org> | Tue Dec 12 08:56:26 2017 -0800 |
| tree | f228d246aabb6d72e09d97684ff9a6ac6768c50a | |
| parent | a23967c181cae80becb451b38ff2a1e01c05c37b [diff] |
add infrastructure for tagging functions as error injectable Using BPF we can override kprob'ed functions and return arbitrary values. Obviously this can be a bit unsafe, so make this feature opt-in for functions. Simply tag a function with KPROBE_ERROR_INJECT_SYMBOL in order to give BPF access to that function for error injection purposes. Signed-off-by: Josef Bacik <jbacik@fb.com> Acked-by: Ingo Molnar <mingo@kernel.org> Signed-off-by: Alexei Starovoitov <ast@kernel.org>