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SubjectRe: How to know when file data has been flushed into disk?
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"Xin Zhao" <uszhaoxin@gmail.com> writes:

> 3. Does sys_close() have to be blocked until all data and metadata
> are committed? If not, sys_close() may give application an illusion
> that the file is successfully written, which can cause the application
> to take subsequent operation. However, data flush could be failed. In
> this case, file system seems to mislead the application. Is this true?
> If so, any solutions?

The fsync() call is the way to make sure written data has hit the
disk. close() doesn't guarantee that.

-Doug
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