tmpfs swap out

[arden jay]

Hi,

>From the doc, tmpfs.txt, it is able to limit the size and it will swap
unneeded pages out to swap space.
I tried but didn't see it use swap space.

>From shmem.c, I can't find any clue like pageout() in vmscan.c.

Can anyone give me some hints here?

-- 
cheers,
jay
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