[LTP] [PATCH] tst_device: add new tst_dev_sync

[Cyril Hrubis]

Hi!
>  This function reads test block device stat file (/sys/block/<device>/stat) and
> -returns the bytes written since the last invocation of this function.
> +returns the bytes written since the last invocation of this function. To avoid
> +FS deferred IO metadata/cache interferes the result, we suggest doing "syncfs"
                                 |   interfecence    |

> +before the tst_dev_bytes_written first invocation. And an inline function named
> +tst_dev_sync is created for that intention.

Other than this it looks good to me, thanks for doing this, acked.


-- 
Cyril Hrubis
chrubis@suse.cz