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List:       busybox
Subject:    Re: [PATCHv2] Use sendfile to copy data between file descriptors
From:       Mike Frysinger <vapier () gentoo ! org>
Date:       2014-10-21 12:37:53
Message-ID: 20141021123753.GC19131 () vapier
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On 21 Oct 2014 11:01, Lauri Kasanen wrote:
> On Tue, Oct 21, 2014, at 08:46, Mike Frysinger wrote:
> > On 20 Oct 2014 21:00, Lauri Kasanen wrote:
> > > > +config FEATURE_USE_SENDFILE
> > > > +        bool "Use sendfile system call"
> > > > +        default y
> > > > +        help
> > > > +          When enabled, busybox will use the kernel sendfile() function
> > > > +          instead of read/write loops where applicable.
> > > 
> > > Please include the kernel version requirement here.
> > 
> > `man 2 sendfile`:
> > In Linux kernels before 2.6.33, out_fd must refer to a socket.
> > Since Linux 2.6.33 it can be any file.  If it is a regular file,
> > then sendfile() changes the file offset appropriately.
> 
> Yes, I know? The point was to tell the user configuring busybox that.

chill dog.  the fact you knew it doesn't mean the submitter did.
nowhere did i say you were ignorant.
-mike

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