bpf: task_group_seq_get_next: simplify the "next tid" logic

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Kill saved_tid. It looks ugly to update *tid and then restore the
previous value if __task_pid_nr_ns() returns 0. Change this code
to update *tid and common->pid_visiting once before return.

Signed-off-by: Oleg Nesterov <oleg@redhat.com>
Acked-by: Yonghong Song <yonghong.song@linux.dev>
Link: https://lore.kernel.org/r/20230905154656.GA24950@redhat.com
Signed-off-by: Alexei Starovoitov <ast@kernel.org>

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Oleg Nesterov 2023-09-05 17:46:56 +02:00 • committed by Alexei Starovoitov

parent 0ee9808b0a

commit 780aa8dfcb

1 changed files with 4 additions and 7 deletions

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kernel/bpf/task_iter.c

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