* Why is clear_user_highpage necessary in do_anonymous_page()?
[not found] <516c87e8040922022973701fff@mail.gmail.com>
@ 2004-09-23 0:35 ` Long Pu
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From: Long Pu @ 2004-09-23 0:35 UTC (permalink / raw)
To: linux-kernel
I wonder why clear_user_highpage is necessary if we don't concern security.
When we write to a anonymous page the very first time, we don't care
whatever the original contents of that page is. And
clear_user_highpage() takes a lot of cpu time under certain workload
such as compiling kernel.
Is there any reason I don't know to reserve it?
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2004-09-23 0:35 ` Why is clear_user_highpage necessary in do_anonymous_page()? Long Pu
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