Re: [PATCH 1/2] generic/065: f2fs serves 64KB size with zero data

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On 2/26/15 7:23 PM, Jaegeuk Kim wrote:
> The f2fs provides 64KB size with 0 data after fsync was done to directory file.
> 
> Cc: Filipe Manana <fdmanana@xxxxxxxx>
> Signed-off-by: Jaegeuk Kim <jaegeuk@xxxxxxxxxx>
> ---
>  tests/generic/065 | 4 ++++
>  1 file changed, 4 insertions(+)
> 
> diff --git a/tests/generic/065 b/tests/generic/065
> index b5a296d..3d2b437 100755
> --- a/tests/generic/065
> +++ b/tests/generic/065
> @@ -139,6 +139,10 @@ ext3)
>  	# a 64Kb file, with all bytes having the value 0xff
>  	[ $hello_digest == "ecb99e6ffea7be1e5419350f725da86b" ] && digest_ok=yes
>  	;;
> +f2fs)
> +	# a 64Kb file, with all bytes having the value 0
> +	[ $hello_digest == "fcd6bcb56c1689fcef28b57c22475bad" ] && digest_ok=yes
> +	;;

whoa... I will admit to having poorly reviewed this test.  Given that this file was
never fsynced, I don't think the test should be looking at file contents *at all*
I'll do an ex post facto review, I think, and really, I think all of the above should
just be removed from the test.  Without fsync, we don't know what's in the file.
(ext3 could be mounted with writeback mode, for example).

-Eric

>  *)
>  	# an empty file
>  	[ $hello_digest == "d41d8cd98f00b204e9800998ecf8427e" ] && digest_ok=yes
> 

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