linux-kernel - Re: [dm-devel] Re: device mapper not reporting no-barrier-support?

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Message-ID: <20080228120538.GG13026@1und1.de>
Date:	Thu, 28 Feb 2008 13:05:38 +0100
From:	Anders Henke <anders.henke@...d1.de>
To:	Jens Axboe <jens.axboe@...cle.com>,
	Andrew Morton <akpm@...ux-foundation.org>,
	device-mapper development <dm-devel@...hat.com>,
	linux-kernel@...r.kernel.org
Subject: Re: [dm-devel] Re: device mapper not reporting no-barrier-support?

On Feb 26 2008, Jens Axboe wrote:
> > [  234.946192] drbd0: conn( WFSyncUUID -> SyncTarget ) 
> > [  234.956176] drbd0: Began resync as SyncTarget (will sync 19542404 KB
> > [4885601
> >  bits set]).
> > [  234.972567] drbd0: Writing meta data super block now.
> > [  235.018203] drbd0: local disk flush failed with status -95
> > 
> > DRBD sees the EOPNOTSUPP, logs this message only once and doesn't try
> > any further barrier requests (as intended).
> 
> OK good, that's what I expected :-)
> 
> I'll queue the patch for 2.6.25, the 2.6.24 should go to stable. Send me
> a properly formatted patch and I'll make sure it goes that way.
> 
> Thanks for testing!

'diff -up''d patch is attached.

Anders
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View attachment "ll_rw_blk-eopnotsup-2.6.24.2.patch" of type "text/x-diff" (742 bytes)