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Date: Thu, 9 Nov 2000 16:45:43 +0000
From: "Stephen C. Tweedie" <sct@redhat.com>
To: "Marco d'Itri" <md@Linux.IT>
Cc: "Stephen C. Tweedie" <sct@redhat.com>,
        Kernel Mailing List <linux-kernel@vger.kernel.org>,
        linux-fsdevel@vger.kernel.org
Subject: Re: Linux-2.4.0-test10
Message-ID: <20001109164543.G14456@redhat.com>
In-Reply-To: <E13qiR9-0008FT-00@the-village.bc.nu> <20001102171717.L1876@redhat.com> <20001104194937.E3423@wonderland.linux.it>
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In-Reply-To: <20001104194937.E3423@wonderland.linux.it>; from md@Linux.IT on Sat, Nov 04, 2000 at 07:49:37PM +0100
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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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