Re: [HACKERS] Allowing WAL fsync to be done via O_SYNC

[Bruce Momjian]

> "The default is 'on' if your system defines one of the macros O_SYNC,
> O_DSYNC, O_FSYNC, and if O_SYNC and O_DSYNC are distinct, otherwise the
> default is 'off'."
> 
> The net result of this would be that the average user would have
> absolutely no clue what the default on his machine is.
> 
> Additionally consider that maybe O_SYNC and O_DSYNC have different values
> but the kernel treats them the same anyway.  We really shouldn't try to
> guess that far.

Good point.  I think Tom already found dfsync points to fsync in his
libc, or something like that.

-- 
  Bruce Momjian                        |  http://candle.pha.pa.us
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