Metadata_version is needed for:
Deciding if metadata type is container-based - more than just the utime check depends on it
Getting parent container number from subarrays - for linking subarrays with containers
Obtaining superswitch - to avoid calling guess_super when we already know the kind of metadata
Introducing utime_valid flag would just duplicate part of information included in metadata_version.
Regards
Anna
-----Original Message-----
From: Williams, Dan J
Sent: Friday, November 05, 2010 6:47 AM
To: Czarnowska, Anna
Cc: Neil Brown; linux-raid@xxxxxxxxxxxxxxx; Neubauer, Wojciech; Ciechanowski, Ed; Labun, Marcin; Hawrylewicz Czarnowski, Przemyslaw
Subject: Re: [PATCH 09/17] Monitor: avoid skipping checks on external arays
On 10/29/2010 7:23 AM, Czarnowska, Anna wrote:
> From bb9ca6dbe0a92e00b21cd8985533b561b40ed6b9 Mon Sep 17 00:00:00 2001
> From: Anna Czarnowska<anna.czarnowska@xxxxxxxxx>
> Date: Mon, 25 Oct 2010 11:30:43 +0200
> Subject: [PATCH 09/17] Monitor: avoid skipping checks on external arays
>
> utime is not correct for external metadata so we can only
> skip further checks for native metadata
>
> Signed-off-by: Anna Czarnowska<anna.czarnowska@xxxxxxxxx>
> ---
> Monitor.c | 33 ++++++++++++++++++++++++++-------
> 1 files changed, 26 insertions(+), 7 deletions(-)
>
> diff --git a/Monitor.c b/Monitor.c
> index a4bfedd..d915d7d 100644
> --- a/Monitor.c
> +++ b/Monitor.c
> @@ -50,6 +50,7 @@ struct state {
> int devstate[MaxDisks];
> unsigned devid[MaxDisks];
> int percent;
> + char *metadata_version;
Another small nit... this is really just a "int utime_valid" flag,
calling it "char *metadata_version" is a slightly confusing shortcut.
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