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Date: Sat, 22 Jun 2019 20:41:11 -0400 From: "Martin K. Petersen" <martin.petersen@...cle.com> To: Eric Wheeler <bcache@...ts.ewheeler.net> Cc: Coly Li <colyli@...e.de>, linux-block@...r.kernel.org, Eric Wheeler <git@...ux.ewheeler.net>, Eric Wheeler <bcache@...ux.ewheeler.net>, Jonathan Corbet <corbet@....net>, Kent Overstreet <kent.overstreet@...il.com>, linux-doc@...r.kernel.org (open list:DOCUMENTATION), linux-kernel@...r.kernel.org (open list), linux-bcache@...r.kernel.org (open list:BCACHE (BLOCK LAYER CACHE)) Subject: Re: [PATCH] bcache: make stripe_size configurable and persistent for hardware raid5/6 Eric, > While some drivers set queue_limits.io_opt (e.g., md raid5), there are > currently no SCSI/RAID controller drivers that do. That's not true. Lots of SCSI RAID devices report a stripe width. -- Martin K. Petersen Oracle Linux Engineering
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