Swap-in question

[Zoltan Menyhart <Zoltan.Menyhart@bull.net>]

Hi,

I try to understand how the swap i/o works. I had a look at v. 2.4.17
and v. 2.5.7.
I have noticed that read_swap_cache() has become
read_swap_cache_async().
I cannot see who is waiting for the swap-in operation be done.
As far as I can see, we return to the faulting user program before the
swap-in has been done and we hit another times the same page fault... we

repeat it until finally the page is in.
Am I right ?
Can you please send me some papers describing the evolution of the VMM &

the swap subsystem ?
Thank you in advance.

Regards,

Zoltán Menyhárt

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