From: Jeff Dike <jdike@addtoit.com>
To: Dan Shearer <dan@shearer.org>
Cc: user-mode-linux-devel@lists.sourceforge.net
Subject: Re: [uml-devel] PATCH check for sys_sendfile() in port_user.c
Date: Tue, 27 Jan 2004 23:39:25 -0500 [thread overview]
Message-ID: <200401280439.i0S4dPZw005522@ccure.user-mode-linux.org> (raw)
In-Reply-To: Your message of "Tue, 27 Jan 2004 15:20:14 +1030." <20040127045014.GZ4203@erizo.shearer.org>
> Some kernels (including SuSE 2.4.20, according to http://
> marc.theaimsgroup.com/?l=user-mode-linux-user&m=107437381718023&w=2)
> don't have sys_sendfile, in which case the port console driver should
> refuse to start up because there is no way for telnetd to get the fd.
sendfile has nothing to do with passing descriptors across unix sockets.
It is a relatively new performance tweak which allows files to be copied
without the data flowing through userspace.
Jeff
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prev parent reply other threads:[~2004-01-28 4:15 UTC|newest]
Thread overview: 2+ messages / expand[flat|nested] mbox.gz Atom feed top
2004-01-27 4:50 [uml-devel] PATCH check for sys_sendfile() in port_user.c Dan Shearer
2004-01-28 4:39 ` Jeff Dike [this message]
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