From: Christoph Hellwig <hch@lst.de>
To: Peng Tao <bergwolf@primarydata.com>
Cc: Christoph Hellwig <hch@lst.de>,
Linux NFS Mailing List <linux-nfs@vger.kernel.org>
Subject: Re: [PATCH 6/9] pnfs/blocklayout: rewrite extent tracking
Date: Thu, 11 Sep 2014 17:21:49 +0200 [thread overview]
Message-ID: <20140911152149.GB6690@lst.de> (raw)
In-Reply-To: <CAKVebiV==2PwNaHJY57sP4oFjUqAzPCLZgx+k9bRf+oiVSeXVw@mail.gmail.com>
On Thu, Sep 11, 2014 at 10:11:42PM +0800, Peng Tao wrote:
> The old code works in a way that mark_extents_written() always
> succeeds. Now that ext_tree_mark_written() may fail, it should check
> for the return value and resend to MDS if failed, otherwise there may
> be silent data corruption.
It can only fail for memory allocation erorrs, which can indeed happen in
theory although not in practice for the amount we do. But I'll prepare
testing using error injection and will handle it, thanks!
next prev parent reply other threads:[~2014-09-11 15:21 UTC|newest]
Thread overview: 33+ messages / expand[flat|nested] mbox.gz Atom feed top
2014-09-10 15:23 pnfs block layout driver fixes V4 Christoph Hellwig
2014-09-10 15:23 ` [PATCH 1/9] pnfs: force a layout commit when encountering busy segments during recall Christoph Hellwig
2014-09-10 15:23 ` [PATCH 2/9] pnfs: add flag to force read-modify-write in ->write_begin Christoph Hellwig
2014-09-10 15:23 ` [PATCH 3/9] pnfs: add return_range method Christoph Hellwig
2014-09-11 13:54 ` Peng Tao
2014-09-11 15:20 ` Christoph Hellwig
2014-09-11 15:30 ` Peng Tao
2014-09-11 15:36 ` Christoph Hellwig
2014-09-12 2:22 ` Peng Tao
2014-09-13 19:38 ` Christoph Hellwig
2014-09-10 15:23 ` [PATCH 4/9] pnfs/blocklayout: remove read-modify-write handling in bl_write_pagelist Christoph Hellwig
2014-09-10 15:23 ` [PATCH 5/9] pnfs/blocklayout: don't set pages uptodate Christoph Hellwig
2014-09-10 15:23 ` [PATCH 6/9] pnfs/blocklayout: rewrite extent tracking Christoph Hellwig
2014-09-11 14:11 ` Peng Tao
2014-09-11 15:21 ` Christoph Hellwig [this message]
2014-09-10 15:23 ` [PATCH 7/9] pnfs/blocklayout: implement the return_range method Christoph Hellwig
2014-09-11 14:16 ` Peng Tao
2014-09-11 15:24 ` Christoph Hellwig
2014-09-10 15:23 ` [PATCH 8/9] pnfs/blocklayout: return layouts on setattr Christoph Hellwig
2014-09-11 14:24 ` Peng Tao
2014-09-11 14:42 ` Boaz Harrosh
2014-09-11 15:25 ` Christoph Hellwig
2014-09-11 15:38 ` Trond Myklebust
2014-09-11 15:48 ` Christoph Hellwig
2014-09-11 16:14 ` Trond Myklebust
2014-09-14 10:55 ` Boaz Harrosh
2014-09-14 13:24 ` Trond Myklebust
2014-09-14 13:51 ` Boaz Harrosh
2014-09-14 14:16 ` Trond Myklebust
2014-09-14 14:28 ` Boaz Harrosh
2014-09-10 15:23 ` [PATCH 9/9] pnfs/blocklayout: allocate separate pages for the layoutcommit payload Christoph Hellwig
-- strict thread matches above, loose matches on Subject: below --
2014-09-09 16:40 pnfs block layout driver fixes V3 Christoph Hellwig
2014-09-09 16:40 ` [PATCH 6/9] pnfs/blocklayout: rewrite extent tracking Christoph Hellwig
2014-09-09 18:30 ` Anna Schumaker
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