* What does pkmap stand for?
@ 2003-01-22 17:49 Mel Gorman
2003-01-22 17:56 ` Martin J. Bligh
0 siblings, 1 reply; 3+ messages in thread
From: Mel Gorman @ 2003-01-22 17:49 UTC (permalink / raw)
To: linux-mm
Really stupid question I know. I'm writing the chapter on high memory
management and so far it is making perfect sense except I can't find what
pkmap or kmap stands for. I'm guessing kmap means Kernel Map but pkmap
could be anything. current guesses are
Permanent Kernel Map
Page Kernel Map
PK Means Anything Pleasing
Extensive google and mailing list searching showed up nothing :-( . Any
help or plausible suggestions are welcome
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* Re: What does pkmap stand for?
2003-01-22 17:49 What does pkmap stand for? Mel Gorman
@ 2003-01-22 17:56 ` Martin J. Bligh
2003-01-23 19:26 ` Mel Gorman
0 siblings, 1 reply; 3+ messages in thread
From: Martin J. Bligh @ 2003-01-22 17:56 UTC (permalink / raw)
To: Mel Gorman, linux-mm
> Really stupid question I know. I'm writing the chapter on high memory
> management and so far it is making perfect sense except I can't find what
> pkmap or kmap stands for. I'm guessing kmap means Kernel Map but pkmap
> could be anything. current guesses are
>
> Permanent Kernel Map
> Page Kernel Map
> PK Means Anything Pleasing
>
> Extensive google and mailing list searching showed up nothing :-( . Any
> help or plausible suggestions are welcome
I think it's "persistant kernel map". You can't hold the atomic version
over a schedule (unless you catch faults & patch it up).
M.
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* Re: What does pkmap stand for?
2003-01-22 17:56 ` Martin J. Bligh
@ 2003-01-23 19:26 ` Mel Gorman
0 siblings, 0 replies; 3+ messages in thread
From: Mel Gorman @ 2003-01-23 19:26 UTC (permalink / raw)
To: Martin J. Bligh; +Cc: linux-mm
On Wed, 22 Jan 2003, Martin J. Bligh wrote:
> I think it's "persistant kernel map". You can't hold the atomic version
> over a schedule (unless you catch faults & patch it up).
>
Sounds plausible, that is the meaning I'll go for as it makes the most
sense. It was pointed out to me that there is another area where Permanent
Kmaps are mentioned in arch/i386/init.c but there, it actually is
permanent kmaps reserved for atomic usage
Thanks
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