Re: [PATCH 2/3] target: Add max_write_same_len device attribute

[Christoph Hellwig]

On Thu, Nov 08, 2012 at 08:07:17PM +0000, Nicholas A. Bellinger wrote:
> From: Nicholas Bellinger <nab@xxxxxxxxxxxxxxx>
> 
> This patch adds a new max_write_same_len device attribute for use with
> WRITE_SAME w/ UNMAP=0 backend emulation.
> 
> Also, update block limits VPD emulation code in spc_emulate_evpd_b0() to
> set the default MAXIMUM WRITE SAME LENGTH value of zero.

why do we need an exposed attribute for this?

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