On Wed, 30 Jul 2008, Miklos Szeredi wrote:

There are no real disadvantages: splice() from a file was originally meant to
be asynchronous, but in reality it only did that for non-readahead pages,
which happen rarely.

I still don't like this. I still don't see the point, and I still think 
there is something fundamentally wrong elsewhere.

I also object to just dismissing the async nature as unimportant. Fix it 
instead. Make it use generic_file_readahead() or something. This is fixing 
things in all the wrong places, imnsho.

			Linus

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