Re: [RFC PATCH v3 04/30] io: fsync before closing a file channel

["Daniel P. Berrangé" <berrange@redhat.com>]

On Mon, Nov 27, 2023 at 05:25:46PM -0300, Fabiano Rosas wrote:
> Make sure the data is flushed to disk before closing file
> channels. This will ensure data is on disk at the end of a migration
> to file.
> 
> Signed-off-by: Fabiano Rosas <farosas@suse.de>
> ---
>  io/channel-file.c | 5 +++++
>  1 file changed, 5 insertions(+)

Reviewed-by: Daniel P. Berrangé <berrange@redhat.com>
Acked-by: Daniel P. Berrangé <berrange@redhat.com>

> 
> diff --git a/io/channel-file.c b/io/channel-file.c
> index a6ad7770c6..d4706fa592 100644
> --- a/io/channel-file.c
> +++ b/io/channel-file.c
> @@ -242,6 +242,11 @@ static int qio_channel_file_close(QIOChannel *ioc,
>  {
>      QIOChannelFile *fioc = QIO_CHANNEL_FILE(ioc);
>  
> +    if (qemu_fdatasync(fioc->fd) < 0) {
> +        error_setg_errno(errp, errno,
> +                         "Unable to synchronize file data with storage device");
> +        return -1;
> +    }
>      if (qemu_close(fioc->fd) < 0) {
>          error_setg_errno(errp, errno,
>                           "Unable to close file");
> -- 
> 2.35.3
> 

With regards,
Daniel
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