Re: [RFC][PATCH 0/7 + tools] Checkpoint/restore mostly in the userspace

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On Fri, Jul 22, 2011 at 05:25:58PM -0700, Matt Helsley wrote:

<snip>
 
> As best I can tell you can't reliably checkpoint epoll sets from userspace.

Sorry, I take that back -- you can modify /proc to do it.

Details:

You'd have to output the fd number for each epoll item plus the path to
the file. The fd,file pair in the item is not strictly tied to
the contents of the processes' fd table yet the item fd has to be output
since it's the number userspace will supply to epoll_ctl(EPOLL_CTL_DEL...).

Cheers,
	-Matt
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