[stgt] [PATCH] SSC: dont fsync() on each written block. Do one single fsync() when file is closed in FILEMARK

[Gabriele]

Hello,

> The patch does improve performance significantly, especially on
> slow/low-end/dodgy hardware where fsync is expensive.

I strongly agree with this patch. On my low end hardware performance was
about 2MB/s. Removing fsync() jumped to more than 60 MB/s.
The suggested behavior is safe enough for a tape activity. Even with
physical tapes, I believe that in case of a system crash or power loss,
the effects will be the same or worst ...
Thumbs up for its integration in the mainline code.

--
Gabriele
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