Hello.
I think cleancache approach is cool. :)
I have some suggestions and questions.
On Sat, May 29, 2010 at 2:35 AM, Dan Magenheimer
dan.magenhei...@oracle.com wrote:
[PATCH V2 0/7] Cleancache (was Transcendent Memory): overview
Changes since V1:
- Rebased to 2.6.34 (no functional changes)
Sorry about emailing the list about this but after doing some googling i
can't seem to find the answer.
Im just wondering if subvolumes or snap shot can have quotas imposed on
them.
The wiki says that:
Subvolumes can be given a quota of blocks, and once this quota is
reached no new writes are
Hi Mike,
On Monday 31 May 2010 22:33:23 Mike Fedyk wrote:
On Mon, May 31, 2010 at 11:06 AM, Paul Millar paul.mil...@desy.de wrote:
[...] My concern is that, if the server-software doesn't push the
client-provided checksum then the FS checksum (plus T-10 DIF/DIX) would
not provide a
Dan Magenheimer wrote:
Most important, cleancache is ephemeral. Pages which are copied into
cleancache have an indefinite lifetime which is completely unknowable
by the kernel and so may or may not still be in cleancache at any later time.
Thus, as its name implies, cleancache is not suitable
Please give your patches some semi-resonable subject line.
fs/btrfs/super.c |2
fs/buffer.c|5 +
fs/ext3/super.c|2
fs/ext4/super.c|2
fs/mpage.c |7 +
fs/ocfs2/super.c |3
fs/super.c
On Tuesday 01 June 2010 15:39:52 Martin K. Petersen wrote:
Paul == Paul Millar paul.mil...@desy.de writes:
Paul My concern is that, if the server-software doesn't push the
Paul client-provided checksum then the FS checksum (plus T-10 DIF/DIX)
Paul would not provide a rigorous assurance that
Hi Minchan --
I think cleancache approach is cool. :)
I have some suggestions and questions.
Thanks for your interest!
If a get_page is successful on a non-shared pool, the page is flushed
(thus
making cleancache an exclusive cache). On a shared pool, the page
Do you have any reason
From: Jamie Lokier [mailto:ja...@shareable.org]
Subject: Re: [PATCH V2 0/7] Cleancache (was Transcendent Memory):
overview
Dan Magenheimer wrote:
Most important, cleancache is ephemeral. Pages which are copied
into
cleancache have an indefinite lifetime which is completely unknowable
On Tue, Jun 01, 2010 at 07:29:56PM -0700, u...@sonic.net wrote:
Is there a more aggressive filesystem restorer than btrfsck? It simply
gives up immediately with the following error:
btrfsck: disk-io.c:739: open_ctree_fd: Assertion `!(!tree_root-node)'
failed.
btrfsck currently only checks
On Wed, Jun 02, 2010 at 10:57:44AM +0200, Stephen wrote:
Im just wondering if subvolumes or snap shot can have quotas imposed on
them.
Subvolume quotas are one of the many features that haven't yet been
implemented. See
https://btrfs.wiki.kernel.org/index.php/Development_timeline.
--
To
On Monday 31 May 2010 19:59:46 Paul Millar wrote:
Hi Hubert,
On Thursday 27 May 2010 16:56:00 Hubert Kario wrote:
Would [obtaining file checksum] be possible (without an awful lot
of work)?
[Calculating checksum in-memory] won't detect in-memory corruption
though, but if you want
Hi, Dan.
On Wed, Jun 02, 2010 at 08:27:48AM -0700, Dan Magenheimer wrote:
Hi Minchan --
I think cleancache approach is cool. :)
I have some suggestions and questions.
Thanks for your interest!
If a get_page is successful on a non-shared pool, the page is flushed
(thus
making
From: Andrew Morton [mailto:a...@linux-foundation.org]
Thanks very much for taking the time for feedback! I hope
I can answer all of your questions... bear with me if some
of the answers are a bit long.
+extern struct cleancache_ops *cleancache_ops;
Why does this exist? If there's only
On 06/02/2010 05:06 PM, Dan Magenheimer wrote:
It is intended that there be different flavours but only
one can be used in any running kernel. A driver file/module
claims the cleancache_ops pointer (and should check to ensure
it is not already claimed). And if nobody claims cleancache_ops,
It is intended that there be different flavours but only
one can be used in any running kernel. A driver file/module
claims the cleancache_ops pointer (and should check to ensure
it is not already claimed). And if nobody claims cleancache_ops,
the hooks should be as non-intrusive as
On 06/03/2010 04:32 AM, Dan Magenheimer wrote:
From: Minchan Kim [mailto:minchan@gmail.com]
I am also eagerly awaiting Nitin Gupta's cleancache backend
and implementation to do in-kernel page cache compression.
Do Nitin say he will make backend of cleancache for
page cache compression?
On 2010-06-02, at 20:46, Nitin Gupta wrote:
On 06/03/2010 04:32 AM, Dan Magenheimer wrote:
From: Minchan Kim [mailto:minchan@gmail.com]
I am also eagerly awaiting Nitin Gupta's cleancache backend
and implementation to do in-kernel page cache compression.
Do Nitin say he will make
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