lkml.org 
[lkml]   [2012]   [Feb]   [13]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
/
Date
From
SubjectRe: [PATCH 13/23] ext4: Add new feature to make block group checksums use metadata_csum algorithm
On Mon, Feb 13, 2012 at 02:40:26PM -0700, Andreas Dilger wrote:
>
> If a kernel understands METADATA_CSUM, it will check this first and
> ignore whether GDT_CSUM is set or not (though it shouldn't ever be
> set at the same time). Either of these features will cause an older
> kernel to mount the filesystem read-only, which is all that is needed.

... note that when we check for the uninit bits, this will have to be
done if GDT_CSUM || METADATA_CSUM are set.
- Ted


\
 
 \ /
  Last update: 2012-02-13 23:31    [from the cache]
©2003-2014 Jasper Spaans. Advertise on this site