On Wed, 17 Dec 2014, Shaohua Li wrote:
> vdso code can't disable preempt, so it can be preempted at any time.
> This makes a challenge to implement specific features. This patch adds a
> generic API to let vdso code detect context switch.
Please change this to:
This adds a complete trainwreck in
vdso code can't disable preempt, so it can be preempted at any time.
This makes a challenge to implement specific features. This patch adds a
generic API to let vdso code detect context switch.
We can use a context switch count to do the detection. The change of the
count in giving time can be use
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