Re: [PATCH] target: Fix handling of small allocation lengths in REPORT LUNS

From: Nicholas A. Bellinger
Date: Thu Aug 13 2015 - 19:23:13 EST

Hi Spencer & Co,

On Wed, 2015-08-12 at 23:05 -0700, Spencer Baugh wrote:
> From: Roland Dreier <roland@xxxxxxxxxxxxxxx>
> REPORT LUNS should not fail just because the allocation length is less
> than 16. The relevant section of SPC-4 is:
> Allocation length
> The ALLOCATION LENGTH field specifies the maximum number of bytes or
> blocks that an application client has allocated in the Data-In
> Buffer. The ALLOCATION LENGTH field specifies bytes unless a
> different requirement is stated in the command definition.
> An allocation length of zero specifies that no data shall be
> transferred. This condition shall not be considered an error.
> So we should just truncate our response rather than return an error.
> Signed-off-by: Roland Dreier <roland@xxxxxxxxxxxxxxx>
> Signed-off-by: Spencer Baugh <sbaugh@xxxxxxxxxx>

This patch looks fine, but it currently doesn't apply to
target-pending/master code due Roland's earlier patch:

target: REPORT LUNS should return LUN 0 even for dynamic ACLs

Would you be so kind to respin atop current target-pending/master..?

Thank you,


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