[stgt] [PATCH] COMPARE_AND_WRITE: Fix this opcode so it works according to SBC

[FUJITA Tomonori]

On Fri, 16 Nov 2012 18:26:52 -0800
Ronnie Sahlberg <ronniesahlberg at gmail.com> wrote:

> After reading SBC again it becomes a lot more clear how this
> opcode works.
> Reactivate the opcode and implement it properly.
> Compare the first "number of blocks" from DATA-OUT with the existing
> content of these blocks on the LUN.
> If it compare ok, then overwrite these block on the lun with the
> next "number of blocks" from the DATA-OUT buffer.
> 
> Signed-off-by: Ronnie Sahlberg <ronniesahlberg at gmail.com>
> ---
>  usr/bs_rdwr.c |   21 +++++++++++++++++----
>  usr/sbc.c     |    2 +-
>  2 files changed, 18 insertions(+), 5 deletions(-)

Thanks,

COMPARE_AND_WRITE broke VMware previously? Someone needs to test this
with the previous environment.
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