Re: [PATCH] ext3: enable cache flush in ext3_sync_file

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On Tue, Sep 08, 2009 at 03:04:38PM +0200, Jan Kara wrote:
> > Acked-by: Eric Sandeen <sandeen@xxxxxxxxxx>
>   But would the patch below be better? When we force a transaction
> commit we don't have to flush caches again. Or am I missing something?

If you know that you really did issue a barrier for sure you don't have
to flush the cache again.  I don't know extN enough to easily figure out
how, but if this patch ensures that it's good.  Same scheme should also
apply to ext4.
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