[CRIU] [PATCH 0/11] Do not remap vmas when not needed (v2)

[Andrei Vagin]

Applied, thanks!

On Thu, May 11, 2017 at 12:10:14PM +0300, Pavel Emelyanov wrote:
> Hi,
> 
> My recent experiment with restore performance showed that we spend too much
> time remapping vmas that have been previously mapped into premap area. The
> total remap time is on the top-2 list (the slowest time was pread restoring
> 7M of memory).
> 
> However, premapping vmas is only needed when we have several tasks and need
> to cow pages. In all other cases memory can be tried to restored in-place.
> 
> This patch does so (sometimes).
> 
> v2: Fixed bugs found by travis run.
> 
> https://travis-ci.org/xemul/criu/builds/230944335
> 
> -- Pavel
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