Re: [PATCH v2] jbd2: Fix block tag checksum verification brokenness
From: Al Viro
Date: Fri May 10 2013 - 20:14:44 EST
On Fri, May 10, 2013 at 04:38:07PM -0700, Darrick J. Wong wrote:
> Al Viro complained of a ton of bogosity with regards to the jbd2 block tag
> header checksum. This one checksum is 16 bits, so cut off the upper 16 bits
> and treat it as a 16-bit value and don't mess around with be32* conversions.
> Fortunately metadata checksumming is still "experimental" and not in a shipping
> e2fsprogs, so there should be few users affected by this.
>
> v2: Eliminate unnecessary variables and make it clear(er) which values are 32
> bits wide.
>
> Reported-by: Al Viro <viro@xxxxxxxxxxxxxxxxxx>
> Signed-off-by: Darrick J. Wong <darrick.wong@xxxxxxxxxx>
ACKed-by: Al Viro <viro@xxxxxxxxxxxxxxxxxx>
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