Re: [PATCH] block: pass correct prot_buf pointer to integrity metadata processing function

[Martin K. Petersen]

>>>>> "Sam" == Sam Bradshaw <sbradshaw@xxxxxxxxxx> writes:

Hey Sam,

Sam> The prot_buf pointer passed to the generate/verify functions is
Sam> incorrect for the second and subsequent range, making it impossible
Sam> to verify the guard tag.  The patch correctly increments the
Sam> prot_buf pointer by the tuple size for each pass.

prot_buf is just a temporary variable used to get the kernel address of
the buffer pointer. We only care about iter.prot_buf and that gets
incremented by the generate or verify functions.

Are your data buffers page aligned? Things are going to break if they
aren't...

-- 
Martin K. Petersen	Oracle Linux Engineering
--
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at  http://vger.kernel.org/majordomo-info.html
Please read the FAQ at  http://www.tux.org/lkml/