Re: [PATCH STABLE 4.14 0/2] btrfs: raid56: backporst to reduce corruption

[Greg KH <gregkh@linuxfoundation.org>]

On Sat, Aug 20, 2022 at 04:49:21PM +0800, Qu Wenruo wrote:
> This is the backport for v4.19.x stable branch.
> 
> The full explananation can be found here:
> https://lore.kernel.org/linux-btrfs/cover.1660891713.git.wqu@suse.com/
> 
> No code change between v4.14.x and v4.19.x, at least nothing git can not
> auto-resolve.
> 
> Testing wise, this is beyond my testing environment.
> Although latest GCC compiles without problem, the result kernel can not
> be properly boot at all, not even any kernel early boot message.
> 
> I'm not sure if this is something related to latest edk2 UEFI or
> something else, I can no longer do proper testing for any older branch,
> including this 4.19 one.
> 
> Thus I can not do any guarantee on these backports, unfortunately
> the backports can only go to v5.x branches for now.
> 
> Unless anyone has better ideas how to build and run older kernels with
> latest edk2 UEFI environment.
> 
> Qu Wenruo (2):
>   btrfs: only write the sectors in the vertical stripe which has data
>     stripes
>   btrfs: raid56: don't trust any cached sector in
>     __raid56_parity_recover()
> 
>  fs/btrfs/raid56.c | 74 ++++++++++++++++++++++++++++++++++++-----------
>  1 file changed, 57 insertions(+), 17 deletions(-)
> 
> -- 
> 2.37.1
> 

All backports now queued up, thanks.

greg k-h