The existing loop is pointless, and the labels make it really hard to
follow the structure.

Replace that control structure with a simple loop that returns when there
are new events, there is a signal, or the thread has timed out.

Link: https://lkml.kernel.org/r/20201106231635.3528496-8-soheil.kdev@gmail.comSigned-off-by: NSoheil Hassas Yeganeh <soheil@google.com>
Suggested-by: NLinus Torvalds <torvalds@linux-foundation.org>
Reviewed-by: NEric Dumazet <edumazet@google.com>
Reviewed-by: NWillem de Bruijn <willemb@google.com>
Reviewed-by: NKhazhismel Kumykov <khazhy@google.com>
Cc: Guantao Liu <guantaol@google.com>
Signed-off-by: NAndrew Morton <akpm@linux-foundation.org>
Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>