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Created as testing for the conditional guard infrastructure.
Specifically this makes use of the following form:
scoped_cond_guard (mutex_intr, return -ERESTARTNOINTR,
&task->signal->cred_guard_mutex) {
...
}
...
return 0;
Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Reviewed-by: Oleg Nesterov <oleg@redhat.com>
Link: https://lkml.kernel.org/r/20231102110706.568467727%40infradead.org