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.