NAME do_splice_direct - splices data directly between two files

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

ARGUMENTS in file to splice from

ppos input file offset

out file to splice to

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 2.6. September 2014 DO_SPLICE_DIRECT(9)