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Message-ID: <yq1y527ag6a.fsf@sermon.lab.mkp.net> Date: Wed, 22 Jan 2014 15:57:01 -0500 From: "Martin K. Petersen" <martin.petersen@...cle.com> To: James Bottomley <James.Bottomley@...senPartnership.com> Cc: Ric Wheeler <rwheeler@...hat.com>, "linux-scsi\@vger.kernel.org" <linux-scsi@...r.kernel.org>, "linux-ide\@vger.kernel.org" <linux-ide@...r.kernel.org>, Chris Mason <clm@...com>, "linux-kernel\@vger.kernel.org" <linux-kernel@...r.kernel.org>, "linux-mm\@kvack.org" <linux-mm@...ck.org>, "mgorman\@suse.de" <mgorman@...e.de>, "linux-fsdevel\@vger.kernel.org" <linux-fsdevel@...r.kernel.org>, "akpm\@linux-foundation.org" <akpm@...ux-foundation.org>, "lsf-pc\@lists.linux-foundation.org" <lsf-pc@...ts.linux-foundation.org> Subject: Re: [Lsf-pc] [LSF/MM TOPIC] really large storage sectors - going beyond 4096 bytes >>>>> "James" == James Bottomley <James.Bottomley@...senPartnership.com> writes: >> or even (not today, but some day) reject the IO. James> I really doubt this. All 4k drives today do RMW ... I don't see James> that changing any time soon. All consumer grade 4K phys drives do RMW. It's a different story for enterprise drives. The vendors appear to be divided between 4Kn and 512e with RMW mitigation. -- 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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