From: Trond Myklebust <trond.myklebust@primarydata.com>
To: Christoph Hellwig <hch@infradead.org>
Cc: Christoph Hellwig <hch@lst.de>,
Linux NFS Mailing List <linux-nfs@vger.kernel.org>
Subject: Re: pnfs block layout driver fixes V2
Date: Mon, 8 Sep 2014 21:12:01 -0700 [thread overview]
Message-ID: <CAHQdGtToLV08oRhfnEMwvxAsL3CeiU55GUxYC9iZvyuUDZ9fCA@mail.gmail.com> (raw)
In-Reply-To: <20140821161338.GA31352@infradead.org>
On Thu, Aug 21, 2014 at 9:13 AM, Christoph Hellwig <hch@infradead.org> wrote:
> For some reason the subject of the mail got lost, fixed it.
>
> On Thu, Aug 21, 2014 at 11:09:16AM -0500, Christoph Hellwig wrote:
>> This series fixes a wide range of issues with the pnfs block layout driver.
>>
>> Before this we were seeing frequent silent data corruption, softlockups and
>> kernel crashes when running both user applications and test cases like xfstests.
>>
>> After this rewrite of the I/O path we've sorted out all issues under normal
>> operations, although error handling in the block layout driver and its
>> interaction with the core nfs and pnfs code still needs further work.
>>
>> It was pointed out that the requirement for blocksizes smaller or equal to
>> the page size conflicts with existing servers. From the state of the code
>> I'm very sure it was never used for real against those servers, but as
>> soon as someone signs up to testing and fix support for these servers I'm
>> happy to land a helping hand, although rock solid support probably is
>> imposible.
>>
>> This work was sponsored by NetApp, Inc.
>>
>> Changes since V1:
>> - added two more layout stateid handling fixes
>> - change the layoutget path so that the layout driver is responsible for
>> freeing the spliced in payload.
>>
Applying all patches except the ones for which I explicitly sent you
an email with questions and/or a notification of a dependency on a
questioned patch.
--
Trond Myklebust
Linux NFS client maintainer, PrimaryData
trond.myklebust@primarydata.com
next prev parent reply other threads:[~2014-09-09 4:12 UTC|newest]
Thread overview: 66+ messages / expand[flat|nested] mbox.gz Atom feed top
[not found] <pnfs block layout driver fixes V2>
2014-08-21 16:09 ` Christoph Hellwig
2014-08-21 16:09 ` [PATCH 01/19] nfs: cap request size to fit a kmalloced page array Christoph Hellwig
2014-08-21 16:09 ` [PATCH 02/19] pnfs: do not pass uninitialized lsegs to ->free_lseg Christoph Hellwig
2014-08-21 16:09 ` [PATCH 03/19] pnfs: force a layout commit when encountering busy segments during recall Christoph Hellwig
2014-08-24 17:49 ` Boaz Harrosh
2014-08-24 19:18 ` Christoph Hellwig
2014-08-26 14:10 ` [PATCH] pnfs: Kick a pnfs_layoutcommit_inode on recall Boaz Harrosh
2014-08-26 14:26 ` Trond Myklebust
2014-08-26 14:37 ` Boaz Harrosh
2014-08-26 14:52 ` Boaz Harrosh
2014-08-26 14:55 ` Trond Myklebust
2014-08-26 15:02 ` Boaz Harrosh
2014-08-26 15:24 ` Matt W. Benjamin
2014-08-26 15:36 ` Trond Myklebust
2014-08-26 16:56 ` Boaz Harrosh
2014-08-26 16:59 ` Trond Myklebust
2014-08-26 17:06 ` Boaz Harrosh
2014-08-26 17:54 ` Trond Myklebust
2014-08-26 18:19 ` Boaz Harrosh
2014-08-26 18:34 ` Boaz Harrosh
2014-08-26 18:41 ` Trond Myklebust
2014-08-26 19:46 ` Trond Myklebust
2014-08-27 8:50 ` Boaz Harrosh
2014-08-27 8:22 ` Boaz Harrosh
2014-09-09 0:37 ` [PATCH 03/19] pnfs: force a layout commit when encountering busy segments during recall Trond Myklebust
2014-09-09 5:49 ` Christoph Hellwig
2014-09-09 14:38 ` Trond Myklebust
2014-08-21 16:09 ` [PATCH 04/19] pnfs: don't check sequence on new stateids in layoutget Christoph Hellwig
2014-08-21 16:09 ` [PATCH 05/19] pnfs: retry after a bad stateid error from layoutget Christoph Hellwig
2014-08-21 16:09 ` [PATCH 06/19] pnfs: avoid using stale stateids after layoutreturn Christoph Hellwig
2014-08-21 16:09 ` [PATCH 07/19] pnfs: add flag to force read-modify-write in ->write_begin Christoph Hellwig
2014-09-09 3:50 ` Trond Myklebust
2014-09-09 5:53 ` Christoph Hellwig
2014-09-09 14:41 ` Trond Myklebust
2014-08-21 16:09 ` [PATCH 08/19] pnfs: add return_range method Christoph Hellwig
2014-08-25 13:50 ` Anna Schumaker
2014-08-25 14:09 ` Christoph Hellwig
2014-08-25 14:17 ` Anna Schumaker
2014-08-25 14:20 ` Christoph Hellwig
2014-09-09 3:57 ` Trond Myklebust
2014-08-21 16:09 ` [PATCH 09/19] pnfs: allow splicing pre-encoded pages into the layoutcommit args Christoph Hellwig
2014-08-21 16:09 ` [PATCH 10/19] pnfs/blocklayout: reject pnfs blocksize larger than page size Christoph Hellwig
2014-08-21 16:09 ` [PATCH 11/19] pnfs/blocklayout: improve GETDEVICEINFO error reporting Christoph Hellwig
2014-08-21 16:09 ` [PATCH 12/19] pnfs/blocklayout: plug block queues Christoph Hellwig
2014-08-21 16:09 ` [PATCH 13/19] pnfs/blocklayout: correctly decrement extent length Christoph Hellwig
2015-02-09 6:01 ` NeilBrown
2015-02-09 18:24 ` Christoph Hellwig
2014-08-21 16:09 ` [PATCH 14/19] pnfs/blocklayout: remove read-modify-write handling in bl_write_pagelist Christoph Hellwig
2014-09-09 4:43 ` Trond Myklebust
2014-08-21 16:09 ` [PATCH 15/19] pnfs/blocklayout: don't set pages uptodate Christoph Hellwig
2014-09-09 4:48 ` Trond Myklebust
2014-08-21 16:09 ` [PATCH 16/19] pnfs/blocklayout: rewrite extent tracking Christoph Hellwig
2014-08-25 14:36 ` Anna Schumaker
2014-08-25 14:43 ` Christoph Hellwig
2014-08-26 9:06 ` Boaz Harrosh
2014-09-09 4:50 ` Trond Myklebust
2014-08-21 16:09 ` [PATCH 17/19] pnfs/blocklayout: implement the return_range method Christoph Hellwig
2014-09-09 4:03 ` Trond Myklebust
2014-08-21 16:09 ` [PATCH 18/19] pnfs/blocklayout: return layouts on setattr Christoph Hellwig
2014-09-09 4:09 ` Trond Myklebust
2014-08-21 16:09 ` [PATCH 19/19] pnfs/blocklayout: allocate separate pages for the layoutcommit payload Christoph Hellwig
2014-09-09 4:52 ` Trond Myklebust
2014-08-21 16:13 ` pnfs block layout driver fixes V2 Christoph Hellwig
2014-09-09 4:12 ` Trond Myklebust [this message]
2014-09-09 5:54 ` Christoph Hellwig
2014-09-09 14:40 ` Trond Myklebust
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