1DO_SPLICE_DIRECT(9)               splice API               DO_SPLICE_DIRECT(9)
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NAME

6       do_splice_direct - splices data directly between two files
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SYNOPSIS

9       long do_splice_direct(struct file * in, loff_t * ppos,
10                             struct file * out, loff_t * opos, size_t len,
11                             unsigned int flags);
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ARGUMENTS

14       in
15           file to splice from
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17       ppos
18           input file offset
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20       out
21           file to splice to
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23       opos
24           output file offset
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26       len
27           number of bytes to splice
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29       flags
30           splice modifier flags
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DESCRIPTION

33       For use by do_sendfile. splice can easily emulate sendfile, but doing
34       it in the application would incur an extra system call (splice in +
35       splice out, as compared to just sendfile). So this helper can splice
36       directly through a process-private pipe.
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39Kernel Hackers Manual 3.10         June 2019               DO_SPLICE_DIRECT(9)
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