From: Dan Magenheimer <dan.magenheimer@oracle.com>
To: ngupta@vflare.org
Cc: chris.mason@oracle.com, viro@zeniv.linux.org.uk,
akpm@linux-foundation.org, adilger@sun.com, tytso@mit.edu,
mfasheh@suse.com, joel.becker@oracle.com, matthew@wil.cx,
linux-btrfs@vger.kernel.org, linux-kernel@vger.kernel.org,
linux-fsdevel@vger.kernel.org, linux-ext4@vger.kernel.org,
ocfs2-devel@oss.oracle.com, linux-mm@kvack.org, jeremy@goop.org,
JBeulich@novell.com, kurt.hackel@oracle.com, npiggin@suse.de,
dave.mccracken@oracle.com, riel@redhat.com, avi@redhat.com,
konrad.wilk@oracle.com
Subject: RE: [PATCH V2 2/7] Cleancache (was Transcendent Memory): core files
Date: Wed, 9 Jun 2010 20:28:21 -0700 (PDT) [thread overview]
Message-ID: <c773d65b-e107-428c-ba6f-04d4ca9f8361@default> (raw)
In-Reply-To: <4C1042E0.8080403@vflare.org>
> I just finished a rough (but working) implementation of in-kernel
> page cache compression backend (called zcache). During this work,
> I found some issues with cleancache, mostly related to (lack of)
> comments/documentation:
Great to hear! And excellent feedback on the missing
documentation... I am working on this right now so your
feedback is very timely.
(documentation and funcition return values comments deleted
as I will fix all of them)
> > +
> > +static inline int cleancache_init_fs(size_t pagesize)
> > +
>=20
> - It seems that returning pool_id of 0 is considered as error
> condition (as it appears from deactivate_locked_super() changes).
> This seems weird; I think only negative pool_id should considered
> as error. Anyway, please add function comments for these.
Hmmm... this is a bug. 0 is a valid pool_id. I'll fix it
for the next rev.
> Page cache compression was a long-pending project. I'm glad its
> coming into shape with the help of cleancache :)
Thanks!
Dan
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next prev parent reply other threads:[~2010-06-10 3:28 UTC|newest]
Thread overview: 7+ messages / expand[flat|nested] mbox.gz Atom feed top
[not found] <20100528173550.GA12219@ca-server1.us.oracle.com>
2010-06-02 19:29 ` [PATCH V2 2/7] Cleancache (was Transcendent Memory): core files Andrew Morton
2010-06-03 0:06 ` Dan Magenheimer
2010-06-03 0:21 ` Jeremy Fitzhardinge
2010-06-03 2:47 ` Dan Magenheimer
2010-06-10 1:41 ` Nitin Gupta
2010-06-10 3:28 ` Dan Magenheimer [this message]
2010-05-28 17:35 Dan Magenheimer
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