Hi,
On 25 Jul 2014, at 02:17, Dave Chinner <[email protected]> wrote:
> On Thu, Jul 24, 2014 at 03:41:31PM -0700, yuanh wrote:
>> Hi all,
>>
>> Two file descriptors are pointing the same file. When fsync is called on
>> one fd, the data written by the other fd will also be flushed? We are using
>> linux XFS.
>
> Yes.
But beware of the common mistake of using fwrite + fsync which does not
actually do what you intend at all and you must instead use fwrite + fflush +
fsync... If you are using write(2) then just fsync is obviously fine.
Best regards,
Anton
--
Anton Altaparmakov <aia21 at cam.ac.uk> (replace at with @)
University of Cambridge Information Services, Roger Needham Building
7 JJ Thomson Avenue, Cambridge, CB3 0RB, UK
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