DO_SPLICE_DIRECT(9)                         splice API                        DO_SPLICE_DIRECT(9)



NAME
       do_splice_direct - splices data directly between two files

SYNOPSIS
       long do_splice_direct(struct file * in, loff_t * ppos, struct file * out, loff_t * opos,
                             size_t len, unsigned int flags);

ARGUMENTS
       in
           file to splice from

       ppos
           input file offset

       out
           file to splice to

       opos
           output file offset

       len
           number of bytes to splice

       flags
           splice modifier flags

DESCRIPTION
       For use by do_sendfile. splice can easily emulate sendfile, but doing it in the
       application would incur an extra system call (splice in + splice out, as compared to just
       sendfile). So this helper can splice directly through a process-private pipe.

COPYRIGHT
Kernel Hackers Manual 4.8.                 January 2017                       DO_SPLICE_DIRECT(9)