> > There is a Samba patch as well that makes it sendfile() based. Various
> > other projects use it too (phttpd for example), some FTP servers i
> > believe, and khttpd and TUX.
>
> At least khttpd uses "do_generic_file_read()", not sendfile per se. I
> assume TUX does too. Sendfile itself is mainly only useful from user
> space..
yes, you are right. TUX does it mainly to avoid some of the user-space
interfacing overhead present in sys_sendfile(), and to be able to control
packet boundaries. (ie. to have or not have the MSG_MORE flag). So TUX is
using its own sock_send_actor and own read_descriptor.
Ingo
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