linux-kernel - Re: [PATCH 11/13] SCSI: support for allocating large scatterlists

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Message-ID: <20070510133851.6555cde9@the-village.bc.nu>
Date:	Thu, 10 May 2007 13:38:51 +0100
From:	Alan Cox <alan@...rguk.ukuu.org.uk>
To:	Jens Axboe <jens.axboe@...cle.com>
Cc:	linux-kernel@...r.kernel.org, Jens Axboe <jens.axboe@...cle.com>
Subject: Re: [PATCH 11/13] SCSI: support for allocating large scatterlists

> sgtable that doesn't fit in a single page, allocate several
> SCSI_MAX_SG_SEGMENTS sized tables and chain them together.
> 
> We default to the safe setup of NOT chaining, for now.

Presumably you'll be submitting patches to fix the current I/O failure
retry in the SCSI layer before enabling it so that we retry most of a
problem I/O and don't throw 64MB of database data into the wind on a
single bad disk block ?

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