linux-kernel - Re: [RFC PATCH] bio-integrity: Copy bip_buf and bip_size in bio_integrity

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Message-ID: <yq1iqjnbpu0.fsf@sermon.lab.mkp.net>
Date:	Tue, 26 May 2009 15:56:39 -0400
From:	"Martin K. Petersen" <martin.petersen@...cle.com>
To:	Alberto Bertogli <albertito@...tiri.com.ar>
Cc:	"Martin K. Petersen" <martin.petersen@...cle.com>,
	linux-kernel@...r.kernel.org, linux-fsdevel@...r.kernel.org,
	Jens Axboe <jens.axboe@...cle.com>
Subject: Re: [RFC PATCH] bio-integrity: Copy bip_buf and bip_size in bio_integrity_clone()

>>>>> "Alberto" == Alberto Bertogli <albertito@...tiri.com.ar> writes:

Alberto> The case I was thinking about was something like a filesystem
Alberto> calling bio_integrity_get_tag() on a cloned bio, 

Filesystems never see cloned bios.

Alberto>  - What would be a decent name to use in struct blk_integrity
Alberto>    for a module such as mine? Is LINUX-DMCSUM-V0-CCITT
Alberto>    reasonable?

Yeah.  Doesn't matter much, really.  The original intent was simply to
capture the variations in the (hardware) protocols .

Alberto>  - How can I test the tag functions? From a quick grep I found
Alberto>    no in-tree users of bio_integrity_get/set_tag().

There are no users yet.

-- 
Martin K. Petersen	Oracle Linux Engineering
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