[PATCH 7/9 V2] xfs: add xfs_verifier_error()

[Dave Chinner]

On Wed, Feb 19, 2014 at 08:58:11PM -0600, Eric Sandeen wrote:
> We want to distinguish between corruption, CRC errors,
> etc.  In addition, the full stack trace on verifier errors
> seems less than helpful; it looks more like an oops than
> corruption.
> 
> Create a new function to specifically alert the user to
> verifier errors, which can differentiate between
> EFSCORRUPTED and CRC mismatches.  It doesn't dump stack
> unless the xfs error level is turned up high.
> 
> Define a new error message (EFSBADCRC) to clearly identify
> CRC errors.  (Defined to EILSEQ, bad byte sequence)

I've updated this to be EBADMSG, to match the code.

Otherwise, looks good.

Reviewed-by: Dave Chinner <dchinner at redhat.com>

-- 
Dave Chinner
david at fromorbit.com