From: Timothy Shimmin <tes@sgi.com>
To: Andi Kleen <andi@firstfloor.org>
Cc: Andi Kleen <andi-suse@firstfloor.org>,
linux-kernel@vger.kernel.org, xfs@oss.sgi.com,
Mikulas Patocka <mpatocka@redhat.com>,
Alasdair G Kergon <agk@redhat.com>, Milan Broz <mbroz@redhat.com>
Subject: Re: Device loses barrier support
Date: Fri, 05 Dec 2008 16:44:14 +1100 [thread overview]
Message-ID: <4938BFAE.5090504@sgi.com> (raw)
In-Reply-To: <20081204145810.GR6703@one.firstfloor.org>
Andi Kleen wrote:
> The write block with barrier bit varies, jbd/gfs2 do it synchronously
> too and xfs does it asynchronously (with io done callbacks), but
> in both cases they handle an EOPNOTSUPP comming out in the final
> io done.
>
Yes, XFS handles it, however,
it doesn't look like we currently propagate the EOPNOTSUPP
up to where we test it (not set for b_error).
Patch disscussed recently on xfs list to rectify this.
--Tim
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WARNING: multiple messages have this Message-ID (diff)
From: Timothy Shimmin <tes@sgi.com>
To: Andi Kleen <andi@firstfloor.org>
Cc: Mikulas Patocka <mpatocka@redhat.com>,
Andi Kleen <andi-suse@firstfloor.org>,
linux-kernel@vger.kernel.org, xfs@oss.sgi.com,
Alasdair G Kergon <agk@redhat.com>, Milan Broz <mbroz@redhat.com>
Subject: Re: Device loses barrier support
Date: Fri, 05 Dec 2008 16:44:14 +1100 [thread overview]
Message-ID: <4938BFAE.5090504@sgi.com> (raw)
In-Reply-To: <20081204145810.GR6703@one.firstfloor.org>
Andi Kleen wrote:
> The write block with barrier bit varies, jbd/gfs2 do it synchronously
> too and xfs does it asynchronously (with io done callbacks), but
> in both cases they handle an EOPNOTSUPP comming out in the final
> io done.
>
Yes, XFS handles it, however,
it doesn't look like we currently propagate the EOPNOTSUPP
up to where we test it (not set for b_error).
Patch disscussed recently on xfs list to rectify this.
--Tim
next prev parent reply other threads:[~2008-12-05 5:44 UTC|newest]
Thread overview: 40+ messages / expand[flat|nested] mbox.gz Atom feed top
[not found] <Pine.LNX.4.64.0812040009340.15169@hs20-bc2-1.build.redhat.com>
[not found] ` <20081204100050.GN6703@one.firstfloor.org>
2008-12-04 14:00 ` Device loses barrier support (was: Fixed patch for simple barriers.) Mikulas Patocka
2008-12-04 14:00 ` Mikulas Patocka
2008-12-04 14:20 ` Andi Kleen
2008-12-04 14:20 ` Andi Kleen
2008-12-04 14:17 ` Mikulas Patocka
2008-12-04 14:17 ` Mikulas Patocka
2008-12-04 14:58 ` Andi Kleen
2008-12-04 14:58 ` Andi Kleen
2008-12-04 16:45 ` Mikulas Patocka
2008-12-04 16:45 ` Mikulas Patocka
2008-12-04 17:48 ` Andi Kleen
2008-12-04 17:48 ` Andi Kleen
2008-12-04 17:53 ` Christoph Hellwig
2008-12-04 17:53 ` Christoph Hellwig
2008-12-04 19:37 ` Mikulas Patocka
2008-12-04 19:37 ` Mikulas Patocka
2008-12-04 22:15 ` Andi Kleen
2008-12-04 22:15 ` Andi Kleen
2008-12-04 23:08 ` Mikulas Patocka
2008-12-04 23:08 ` Mikulas Patocka
2008-12-05 0:48 ` Andi Kleen
2008-12-05 0:48 ` Andi Kleen
2008-12-05 1:16 ` Mikulas Patocka
2008-12-05 1:16 ` Mikulas Patocka
2008-12-05 1:37 ` Andi Kleen
2008-12-05 1:37 ` Andi Kleen
2008-12-05 2:21 ` Mikulas Patocka
2008-12-05 2:21 ` Mikulas Patocka
2008-12-05 3:09 ` Andi Kleen
2008-12-05 3:09 ` Andi Kleen
2008-12-05 11:52 ` Alan Cox
2008-12-05 11:52 ` Alan Cox
2008-12-05 12:29 ` Andi Kleen
2008-12-05 12:29 ` Andi Kleen
2008-12-05 3:26 ` Device loses barrier support Eric Sandeen
2008-12-05 3:26 ` Eric Sandeen
2008-12-07 4:17 ` Device loses barrier support (was: Fixed patch for simple barriers.) Dave Chinner
2008-12-07 4:17 ` Dave Chinner
2008-12-05 5:44 ` Timothy Shimmin [this message]
2008-12-05 5:44 ` Device loses barrier support Timothy Shimmin
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