What happened to try_to_swap_out()?

[Timur Tabi <timur.tabi@ammasso.com>]

Hi,

Sorry for the newbie-like question, but I didn't know where else I 
should ask this question.

I'm porting our driver from 2.4 to 2.6, and during the development for 
2.4, one of the other software engineers discovered a possible bug in 
try_to_swap_out() in mm/vmscan.c.  I don't have all the details, but 
it's something about that function swapping out reserved pages, which I 
presume it shouldn't do.  Because of this bug, we had to implement a 
work-around in our driver.

Anyway, I'm trying to determine if that bug still exists in 2.6.  We'll 
run tests, of course, but I wanted to look at the code to see if the 
problem is still there.  Unfortunately, that function doesn't exist in 
2.6, and I can't figure out what it's replacement is.  Obviously, there 
is no single replacement function, but I was hoping someone could give 
me a quick rundown as to where that code went.

Also, I noticed that RedHat 9.0 doesn't have try_to_swap_out() either. 
I guess they ported some 2.6 code to 2.4.  Can anyone corroborate that?

-- 
Timur Tabi
Staff Software Engineer
timur.tabi@ammasso.com
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