tjh.dev
+3
-2
kernel/events/core.c
+3
-2
kernel/events/core.c
···
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* retry due to any failures in smp_call_function_single(), such as if the
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* task_cpu() goes offline concurrently.
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*
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-
* returns @func return value or -ESRCH when the process isn't running
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+
* returns @func return value or -ESRCH or -ENXIO when the process isn't running
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*/
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static int
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task_function_call(struct task_struct *p, remote_function_f func, void *info)
···
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for (;;) {
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ret = smp_call_function_single(task_cpu(p), remote_function,
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&data, 1);
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-
ret = !ret ? data.ret : -EAGAIN;
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+
if (!ret)
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+
ret = data.ret;
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if (ret != -EAGAIN)
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break;