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authorDavid S. Miller <davem@davemloft.net>2020-01-23 08:10:16 +0100
committerDavid S. Miller <davem@davemloft.net>2020-01-23 08:10:16 +0100
commit954b3c4397792c8614aa4aaf25030ae87ece8307 (patch)
treeb2648c3d97fe2332863d7baac069c23cab0addc4 /kernel/trace
parentc5d19a6ecfce72d0352191d75f03eea4748a8c45 (diff)
parent85cc12f85138f2ce3edf24833edd2179690306db (diff)
downloadlinux-954b3c4397792c8614aa4aaf25030ae87ece8307.tar.bz2
Merge git://git.kernel.org/pub/scm/linux/kernel/git/bpf/bpf-next
Alexei Starovoitov says: ==================== pull-request: bpf-next 2020-01-22 The following pull-request contains BPF updates for your *net-next* tree. We've added 92 non-merge commits during the last 16 day(s) which contain a total of 320 files changed, 7532 insertions(+), 1448 deletions(-). The main changes are: 1) function by function verification and program extensions from Alexei. 2) massive cleanup of selftests/bpf from Toke and Andrii. 3) batched bpf map operations from Brian and Yonghong. 4) tcp congestion control in bpf from Martin. 5) bulking for non-map xdp_redirect form Toke. 6) bpf_send_signal_thread helper from Yonghong. ==================== Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'kernel/trace')
-rw-r--r--kernel/trace/bpf_trace.c27
1 files changed, 24 insertions, 3 deletions
diff --git a/kernel/trace/bpf_trace.c b/kernel/trace/bpf_trace.c
index e5ef4ae9edb5..19e793aa441a 100644
--- a/kernel/trace/bpf_trace.c
+++ b/kernel/trace/bpf_trace.c
@@ -703,6 +703,7 @@ struct send_signal_irq_work {
struct irq_work irq_work;
struct task_struct *task;
u32 sig;
+ enum pid_type type;
};
static DEFINE_PER_CPU(struct send_signal_irq_work, send_signal_work);
@@ -712,10 +713,10 @@ static void do_bpf_send_signal(struct irq_work *entry)
struct send_signal_irq_work *work;
work = container_of(entry, struct send_signal_irq_work, irq_work);
- group_send_sig_info(work->sig, SEND_SIG_PRIV, work->task, PIDTYPE_TGID);
+ group_send_sig_info(work->sig, SEND_SIG_PRIV, work->task, work->type);
}
-BPF_CALL_1(bpf_send_signal, u32, sig)
+static int bpf_send_signal_common(u32 sig, enum pid_type type)
{
struct send_signal_irq_work *work = NULL;
@@ -748,11 +749,17 @@ BPF_CALL_1(bpf_send_signal, u32, sig)
*/
work->task = current;
work->sig = sig;
+ work->type = type;
irq_work_queue(&work->irq_work);
return 0;
}
- return group_send_sig_info(sig, SEND_SIG_PRIV, current, PIDTYPE_TGID);
+ return group_send_sig_info(sig, SEND_SIG_PRIV, current, type);
+}
+
+BPF_CALL_1(bpf_send_signal, u32, sig)
+{
+ return bpf_send_signal_common(sig, PIDTYPE_TGID);
}
static const struct bpf_func_proto bpf_send_signal_proto = {
@@ -762,6 +769,18 @@ static const struct bpf_func_proto bpf_send_signal_proto = {
.arg1_type = ARG_ANYTHING,
};
+BPF_CALL_1(bpf_send_signal_thread, u32, sig)
+{
+ return bpf_send_signal_common(sig, PIDTYPE_PID);
+}
+
+static const struct bpf_func_proto bpf_send_signal_thread_proto = {
+ .func = bpf_send_signal_thread,
+ .gpl_only = false,
+ .ret_type = RET_INTEGER,
+ .arg1_type = ARG_ANYTHING,
+};
+
static const struct bpf_func_proto *
tracing_func_proto(enum bpf_func_id func_id, const struct bpf_prog *prog)
{
@@ -822,6 +841,8 @@ tracing_func_proto(enum bpf_func_id func_id, const struct bpf_prog *prog)
#endif
case BPF_FUNC_send_signal:
return &bpf_send_signal_proto;
+ case BPF_FUNC_send_signal_thread:
+ return &bpf_send_signal_thread_proto;
default:
return NULL;
}