Re: FAILED: patch "[PATCH] md: forbid a RAID5 from having both a bitmap and a journal." failed to apply to 4.14-stable tree

[Greg KH <gregkh@linuxfoundation.org>]

On Wed, Nov 29, 2017 at 01:00:25PM +1100, NeilBrown wrote:
> 
> Subject: [PATCH] md: forbid a RAID5 from having both a bitmap and a journal.
> 
> commit 230b55fa8d64007339319539f8f8e68114d08529 upstream.
> 
> Having both a bitmap and a journal is pointless.
> Attempting to do so can corrupt the bitmap if the journal
> replay happens before the bitmap is initialized.
> Rather than try to avoid this corruption, simply
> refuse to allow arrays with both a bitmap and a journal.
> So:
>  - if raid5_run sees both are present, fail.
>  - if adding a bitmap finds a journal is present, fail
>  - if adding a journal finds a bitmap is present, fail.
> 
> Cc: stable@vger.kernel.org (4.10+)
> Signed-off-by: NeilBrown <neilb@suse.com>
> Tested-by: Joshua Kinard <kumba@gentoo.org>
> Acked-by: Joshua Kinard <kumba@gentoo.org>
> Signed-off-by: Shaohua Li <shli@fb.com>
> ---
>  drivers/md/bitmap.c | 6 ++++++
>  drivers/md/md.c     | 2 +-
>  drivers/md/raid5.c  | 7 +++++++
>  3 files changed, 14 insertions(+), 1 deletion(-)
> 
> This commit only had problems due to a filename change.

Oops, I should have caught that one, sorry about that.  Thanks for the
patch.

greg k-h