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Open Source and information security mailing list archives
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Date: Wed, 14 Apr 2010 10:25:08 -0400 From: "Martin K. Petersen" <martin.petersen@...cle.com> To: Andrew Morton <akpm@...ux-foundation.org> Cc: "Frank Ren" <frankrq2009@....com>, "mingo" <mingo@...e.hu>, "a.p.zijlstra" <a.p.zijlstra@...llo.nl>, "jens.axboe" <jens.axboe@...cle.com>, linux-kernel@...r.kernel.org, stable@...nel.org, dm-devel@...hat.com, Alasdair G Kergon <agk@...hat.com>, "Martin K. Petersen" <martin.petersen@...cle.com> Subject: Re: high iowait problem(Bug 12309 on bugzilla.kernel.org) >>>>> "Andrew" == Andrew Morton <akpm@...ux-foundation.org> writes: Andrew> I'm seeing just one device-mapper change whcih went in over that Andrew> timeframe: Andrew> : commit e0f5cfa7c18b411634e73923841eccd3a4c0ce7f Andrew> : Author: Martin K. Petersen <martin.petersen@...cle.com> Andrew> : Date: Mon Jan 11 03:21:50 2010 -0500 Andrew> : Andrew> : DM: Fix device mapper topology stacking The topology changes do not modify anything in our runtime I/O path. They only come into play during filesystem or logical volume creation on top of devices that support reporting alignment/physical block size. And you need recent dm and filesystem utilities for that to work. -- Martin K. Petersen Oracle Linux Engineering -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@...r.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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