From: Christoph Hellwig <hch@infradead.org>
To: "Darrick J. Wong" <darrick.wong@oracle.com>
Cc: linux-xfs@vger.kernel.org
Subject: Re: [PATCH 7/7] xfs: mark speculative prealloc CoW fork extents unwritten
Date: Tue, 31 Jan 2017 05:41:35 -0800 [thread overview]
Message-ID: <20170131134135.GA10866@infradead.org> (raw)
In-Reply-To: <148582223303.12293.11053073799262731296.stgit@birch.djwong.org>
Hi Darrick,
from a quick look the code looks reasonable, but I'm worried about
yet another set of transactions that modify all extents again.
Do you have any measurements of the overhead? I'll see if I
can prototype my always COW idea to see how the approaches compare.
next prev parent reply other threads:[~2017-01-31 13:41 UTC|newest]
Thread overview: 31+ messages / expand[flat|nested] mbox.gz Atom feed top
2017-01-31 0:23 [PATCH 0/7] xfs: random fixes Darrick J. Wong
2017-01-31 0:23 ` [PATCH 1/7] xfs: fix toctou race when locking an inode to access the data map Darrick J. Wong
2017-01-31 3:01 ` Eric Sandeen
2017-01-31 13:26 ` Christoph Hellwig
2017-01-31 19:45 ` Darrick J. Wong
2017-01-31 21:40 ` Darrick J. Wong
2017-02-01 2:34 ` [PATCH v2 " Darrick J. Wong
2017-02-01 14:48 ` Christoph Hellwig
2017-01-31 0:23 ` [PATCH 2/7] xfs: fail _dir_open when readahead fails Darrick J. Wong
2017-01-31 4:12 ` Eric Sandeen
2017-01-31 13:29 ` Christoph Hellwig
2017-01-31 0:23 ` [PATCH 3/7] xfs: filter out obviously bad btree pointers Darrick J. Wong
2017-01-31 4:39 ` Eric Sandeen
2017-01-31 20:09 ` Darrick J. Wong
2017-01-31 20:37 ` Eric Sandeen
2017-01-31 0:23 ` [PATCH 4/7] xfs: check for obviously bad level values in the bmbt root Darrick J. Wong
2017-01-31 13:31 ` Christoph Hellwig
2017-01-31 0:23 ` [PATCH 5/7] xfs: verify free block header fields Darrick J. Wong
2017-01-31 13:42 ` Christoph Hellwig
2017-01-31 0:23 ` [PATCH 6/7] xfs: allow unwritten extents in the CoW fork Darrick J. Wong
2017-02-01 2:35 ` [PATCH v2 " Darrick J. Wong
2017-02-01 18:06 ` Christoph Hellwig
2017-01-31 0:23 ` [PATCH 7/7] xfs: mark speculative prealloc CoW fork extents unwritten Darrick J. Wong
2017-01-31 13:41 ` Christoph Hellwig [this message]
2017-01-31 19:11 ` Darrick J. Wong
2017-02-01 1:28 ` Darrick J. Wong
2017-02-01 2:36 ` [PATCH v2 " Darrick J. Wong
2017-02-01 18:36 ` Christoph Hellwig
2017-02-02 15:04 ` Brian Foster
2017-02-02 17:04 ` Darrick J. Wong
2017-02-02 19:42 ` Brian Foster
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