I didn't suggest that a sync should close files but that it should flush the
files.

Easy enough to fix - one line call to flush all.

-- Charles

On Sep 12, 2009 3:06 AM, <yaffs@piments.com> wrote:

Sorry , sent from wrong account.

Charles Manning wrote:

> resend because list was down
> On Wednesday 09 September 2009 22:30:28 Voser, Peter wrote:
>
>> Hi all,
>>
>> When I modify a file, invoke sync and unplug the power of my device, the
>> expected file content has been saved, but the time stamp is still the old
>> one (without fclose invocation).
>>
>> When I do the same with a friendly reboot, the file content is there *and*
>> the time stamp has been updated (still without fclose invocation).
>>
>> I would expect the file stamp to be updated with sync, too.
>>
>> Is this a bug or on purpose?
>>
>
> Hi Peter
>
> At present a file system sync just snapshots the file system (ie does a
> checkpoint) . It does not flush the headers for the individual files.
> A friendly reboot closes all the files
>

man sync:

DESCRIPTION
      Force changed blocks to disk, update the super block.

I've never seen that sync closes open files so I see no expectation for that
but if I'm reading the man page correctly it seems the headers should be put
out too.

It does not seem to be a case where an individual fs should decide what the
"desired" functionality is.

best regards.


> Is this a bug? Well I guess it depends on the desired functionality.
>
> -- CHarles
>
>
>
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