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List:       linux-fsdevel
Subject:    Re: Linux-2.4.0-test10
From:       "Stephen C. Tweedie" <sct () redhat ! com>
Date:       2000-11-09 16:45:43
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Hi,

On Sat, Nov 04, 2000 at 07:49:37PM +0100, Marco d'Itri wrote:
> On Nov 02, "Stephen C. Tweedie" <sct@redhat.com> wrote:
> 
>  >2.2 O_SYNC is actually broken too --- it doesn't sync all metadata (in
>  >particular, it doesn't update the inode), but I'd rather fix that for
>  >2.4 rather than change 2.2, as the main users of O_SYNC, databases,
>  >are writing to preallocated files anyway.
> What about fsync(2)? Will it update metadata too?

Always.  fdatasync() is permitted to skip timestamp updates, but
fsync() is not.

Cheers,
 Stephen

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