Re: [PATCH] PM / wakeup: use seq_open() to show wakeup stats

[Pavel Machek]

On Fri 2018-03-02 13:01:00, Ganesh Mahendran wrote:
> single_open() interface requires that the whole output must
> fit into a single buffer. This will lead to timeout when
> system memory is not in a good situation.
> 
> This patch use seq_open() to show wakeup stats. This method
> need only one page, so timeout will not be observed.

Can the rcu_read_unlock be delayed arbitrarily by userland code?

Is that ok with RCU?
								Pavel
								
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