netdev - Re: [PATCH v2 net-next 4/4] net: af_unix: implement splice for stream af

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Date:	Thu, 21 May 2015 07:23:18 -0700
From:	Eric Dumazet <eric.dumazet@...il.com>
To:	Hannes Frederic Sowa <hannes@...essinduktion.org>
Cc:	netdev@...r.kernel.org, edumazet@...gle.com, cwang@...pensource.com
Subject: Re: [PATCH v2 net-next 4/4] net: af_unix: implement splice for
 stream af_unix sockets

On Thu, 2015-05-21 at 11:39 +0200, Hannes Frederic Sowa wrote:
> unix_stream_recvmsg is refactored to unix_stream_read_generic in this
> patch and enhanced to deal with pipe splicing. The refactoring is
> inneglible, we mostly have to deal with a non-existing struct msghdr
> argument.
> 

> +static __always_inline
> +int unix_stream_read_generic(struct unix_stream_read_state *state)
>  {


I do not believe it is reasonable to inline this monster, even if some
macro benchmark looks better.

General trend in the community is to remove all these inlines.

ip_finish_output2() for example should lose its 'inline' keyword.


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