Re: [PATCH -v8 3/4] Enable the MS_ASYNC functionality insys_msync()

[Miklos Szeredi]

> > Also, it still doesn't make sense to me why we'd not need to walk the
> > rmap, it is all the same file after all.
> 
> It's the same file, but not the same memory map.  It basically depends
> on how you define msync:
> 
>  a) sync _file_ on region defined by this mmap/start/end-address
>  b) sync _memory_region_ defined by start/end-address

My mmap/msync tester program can acually check this as well, with the
'-f' flag.  Anton, can you try that on the reference platforms?

Miklos
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