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Message-ID: <x49k2t05i0n.fsf@segfault.boston.devel.redhat.com> Date: Wed, 12 Aug 2015 17:11:36 -0400 From: Jeff Moyer <jmoyer@...hat.com> To: Boaz Harrosh <boaz@...xistor.com> Cc: "Wilcox\, Matthew R" <matthew.r.wilcox@...el.com>, "linda.knippers\@hp.com" <linda.knippers@...com>, "linux-kernel\@vger.kernel.org" <linux-kernel@...r.kernel.org>, "linux-fsdevel\@vger.kernel.org" <linux-fsdevel@...r.kernel.org> Subject: Re: regression introduced by "block: Add support for DAX reads/writes to block devices" Boaz Harrosh <boaz@...xistor.com> writes: > On 08/07/2015 11:41 PM, Jeff Moyer wrote: > <> >> >>> We need to cope with the case where the end of a partition isn't on a >>> page boundary though. >> >> Well, that's usually done by falling back to buffered I/O. I gave that >> a try and panicked the box. :) I'll keep looking into it, but probably >> won't have another patch until next week. >> > > lets slow down for a sec, please. > > We have all established that an unaligned partition start is BAD and not supported? No. Unaligned partitions on RAID arrays or 512e devices are bad because they result in suboptimal performance. They are most certainly still supported, though. -Jeff -- 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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