Commit 8b401f9ed244 ("bpf: implement bpf_send_signal() helper")
added helper bpf_send_signal() which permits bpf program to
send a signal to the current process.
This patch implemented a new helper bpf_send_signal_thread()
to send a signal to the current thread. This helper can simplify
user space code if the thread context of bpf sending signal
is needed in user space. Please see Patch #1 for details of
use case and kernel implementation.
Patch #2 added some bpf self tests for the new helper.
Yonghong Song (2):
bpf: add bpf_send_signal_thread() helper
tools/bpf: add a selftest for bpf_send_signal_thread()
include/uapi/linux/bpf.h | 18 +++++++++--
kernel/trace/bpf_trace.c | 27 +++++++++++++++--
tools/include/uapi/linux/bpf.h | 18 +++++++++--
.../selftests/bpf/prog_tests/send_signal.c | 30 ++++++++++++-------
.../bpf/progs/test_send_signal_kern.c | 9 ++++--
5 files changed, 82 insertions(+), 20 deletions(-)
--
2.17.1
