1 // SPDX-License-Identifier: GPL-2.0
42 	acquired = bpf_task_acquire(v->task);  in BPF_PROG()
142 	kptr = bpf_kptr_xchg(&v->task, NULL);  in BPF_PROG()
175 	bpf_task_release(v->task);  in BPF_PROG()
196 	struct __tasks_kfunc_map_value local, *v;  in BPF_PROG()  local
199 	s32 pid;  in BPF_PROG()  local
201 	status = bpf_probe_read_kernel(&pid, sizeof(pid), &task->pid);  in BPF_PROG()
205 	local.task = NULL;  in BPF_PROG()
206 	status = bpf_map_update_elem(&__tasks_kfunc_map, &pid, &local, BPF_NOEXIST);  in BPF_PROG()
210 	v = bpf_map_lookup_elem(&__tasks_kfunc_map, &pid);  in BPF_PROG()
212 		return -ENOENT;  in BPF_PROG()
216 		return -EEXIST;  in BPF_PROG()
218 	old = bpf_kptr_xchg(&v->task, acquired);  in BPF_PROG()
242 	acquired = bpf_task_from_pid(task->pid);  in BPF_PROG()
269 	bpf_strncmp(task->comm, 17, "foo");  in BPF_PROG()
277 	bpf_strncmp(task->comm + 1, 16, "foo");  in BPF_PROG()
285 	bpf_probe_read_kernel(task->comm, 16, task->comm);  in BPF_PROG()
294 	 * task->comm is a legacy ptr_to_btf_id. The verifier cannot guarantee  in BPF_PROG()
297 	bpf_strncmp(task->comm, 16, "foo");  in BPF_PROG()
305 	struct task_struct *local;  in BPF_PROG()  local
316 	local = v->task;  in BPF_PROG()
317 	if (!local) {  in BPF_PROG()
322 	bpf_task_release(local);  in BPF_PROG()