From: Milosz Tanski <milosz@adfin.com>
To: David Howells <dhowells@redhat.com>
Cc: Hongyi Jia <jiayisuse@gmail.com>,
ceph-devel <ceph-devel@vger.kernel.org>,
Sage Weil <sage@inktank.com>,
"Yan, Zheng" <zheng.z.yan@intel.com>,
"linux-cachefs@redhat.com" <linux-cachefs@redhat.com>,
"linux-fsdevel@vger.kernel.org" <linux-fsdevel@vger.kernel.org>,
linux-kernel@vger.kernel.org
Subject: Re: [PATCH 2/5] new fscache interface to check cache consistency
Date: Wed, 4 Sep 2013 18:02:57 -0400 [thread overview]
Message-ID: <CANP1eJEK-_C9XhrzXByQtUTGzq3qikNjT7feCispajSGw8zNJQ@mail.gmail.com> (raw)
In-Reply-To: <CANP1eJFmMNEr9orps6Dd983sp6QmMfBsMT+dY1CvZ+u0nXKf4w@mail.gmail.com>
David,
Is there anyway I can call you at (at your desk) during EST hours. I'd
like to talk this part through since I think we're going a bit in
circles. I'd like to get this fixed so we can submit the fscache for
Ceph code for the upstream kernel in the merge window.
Best,
-- Milosz
On Wed, Sep 4, 2013 at 3:41 PM, Milosz Tanski <milosz@adfin.com> wrote:
> On Wed, Sep 4, 2013 at 2:13 PM, David Howells <dhowells@redhat.com> wrote:
>> Milosz Tanski <milosz@adfin.com> wrote:
>>
>>> Is it as simple as stick a mutex at the top of the
>>> __fscache_check_consistency function before we try to find the object?
>>
>> You can lock a mutex in a function, but where are you actually going to place
>> the mutex struct? And what other code is going to take it? To do this, you'd
>> have to place the mutex struct in fscache_cookie. The problem is that you
>> have to protect the pointer from fscache_cookie to fscache_object - so placing
>> the mutex in fscache_object doesn't help.
>
> David,
>
> I meant lock cookie->lock inside of __fscache_check_consistency in the
> beginning of the function. I don't see the need to push this into the
> netfs code.
>
> - Milosz
prev parent reply other threads:[~2013-09-04 22:02 UTC|newest]
Thread overview: 21+ messages / expand[flat|nested] mbox.gz Atom feed top
2013-08-21 21:26 [PATCHv4 0/5] ceph: persistent caching with fscache Milosz Tanski
2013-08-21 21:29 ` [PATCH 1/5] new cachefiles interface to check cache consistency Hongyi Jia
2013-08-21 21:29 ` [PATCH 2/5] new fscache " Hongyi Jia
2013-08-21 21:29 ` [PATCH 3/5] ceph: use fscache as a local presisent cache Milosz Tanski
2013-08-27 1:05 ` Sage Weil
2013-08-21 21:30 ` [PATCH 4/5] fscache: netfs function for cleanup post readpages Milosz Tanski
2013-09-03 17:24 ` Milosz Tanski
2013-08-21 21:30 ` [PATCH 5/5] ceph: clean PgPrivate2 on returning from readpages Milosz Tanski
[not found] ` <cover.1375999914.git.milosz-B5zB6C1i6pkAvxtiuMwx3w@public.gmane.org>
2013-08-22 5:05 ` [PATCHv4 0/5] ceph: persistent caching with fscache Sage Weil
[not found] ` <alpine.DEB.2.00.1308212203320.1479-vIokxiIdD2AQNTJnQDzGJqxOck334EZe@public.gmane.org>
2013-08-22 12:58 ` Milosz Tanski
2013-09-04 15:49 ` David Howells
2013-09-04 15:54 ` Sage Weil
[not found] ` <alpine.DEB.2.00.1309040851080.27503-vIokxiIdD2AQNTJnQDzGJqxOck334EZe@public.gmane.org>
2013-09-04 16:25 ` Sage Weil
2013-09-05 12:34 ` David Howells
2013-09-04 16:24 ` [PATCH 2/5] new fscache interface to check cache consistency David Howells
2013-09-04 16:48 ` Milosz Tanski
2013-09-04 17:26 ` David Howells
2013-09-04 18:04 ` Milosz Tanski
2013-09-04 18:13 ` David Howells
2013-09-04 19:41 ` Milosz Tanski
2013-09-04 22:02 ` Milosz Tanski [this message]
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