Add comment to read op semantics for direct io
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@ -600,6 +600,9 @@ type ReadFileOp struct {
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// (http://goo.gl/SGxnaN) to read a page at a time. It appears to understand
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// where EOF is by checking the inode size (http://goo.gl/0BkqKD), returned
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// by a previous call to LookUpInode, GetInodeAttributes, etc.
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//
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// If direct io is enabled, semantics should match those of read (man 2
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// read).
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BytesRead int
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}
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