doc: document fs.datasync(Sync)

The APIs are implemented but currently not documented. PR-URL: #5402 Reviewed-By: Ben Noordhuis <info@bnoordhuis.nl> Reviewed-By: Rod Vagg <rod@vagg.org>
nodejs · Mar 17, 2016 · 55f59e8 · 55f59e8
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diff --git a/doc/api/fs.markdown b/doc/api/fs.markdown
@@ -429,6 +429,15 @@ to the completion callback.
 
 Synchronous fchown(2). Returns `undefined`.
 
+## fs.fdatasync(fd, callback)
+
+Asynchronous fdatasync(2). No arguments other than a possible exception are
+given to the completion callback.
+
+## fs.fdatasyncSync(fd)
+
+Synchronous fdatasync(2). Returns `undefined`.
+
 ## fs.fstat(fd, callback)
 
 Asynchronous fstat(2). The callback gets two arguments `(err, stats)` where