Re: [ext3/4] PROBLEM: fdatasync not syncing appended data (w/test program)

[Kristian Nielsen]

Jan Kara <jack@xxxxxxx> writes:

> On Mon 03-09-12 10:45:15, Kristian Nielsen wrote:
>> It appears that ext3 and ext4 fdatasync() does not fully sync data to
>> disk. Specifically, when new data is written at the end (so that the file
>> length is increased), not all of the new data is synced by fdatasync().

> The culprit is that we forget to update i_datasync_tid when we change only
> inode size. Thus inode is not forced to disk during fdatasync(). I will send
> fixes for this in a moment.

Cool, thanks for the quick response! Glad that we get this fixed.

 - Kristian.
--
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at  http://vger.kernel.org/majordomo-info.html
Please read the FAQ at  http://www.tux.org/lkml/