Re: [PATCH 2/2] fs: Support compiling out sendfile

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On Tue, Oct 21, 2014 at 12:51:54AM -0700, Christoph Hellwig wrote:
> On Mon, Oct 20, 2014 at 03:24:22PM -0700, josh@xxxxxxxxxxxxxxxx wrote:
> > On Mon, Oct 20, 2014 at 11:48:37PM +0200, Pieter Smith wrote:
> > > Many embedded systems will not need this syscall, and omitting it
> > > saves space.  Add a new EXPERT config option CONFIG_SENDFILE_SYSCALL
> > > (default y) to support compiling it out.
> > 
> > Nice work, thanks!
> > 
> > If there are no objections, and nobody has a tree they'd rather carry
> > this through, I'll take the series through the tiny tree when it's ready
> > to merge.
> 
> I think it's rather pointless - there is very little sendfile code,
> so you'd rather want to disable splice.

That's the plan, but since sendfile depends on some of the splice bits,
sendfile needs to be optional as well; SENDFILE_SYSCALL will then select
SPLICE_SYSCALLS.

- Josh Triplett
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