From: David Teigland <teigland@redhat.com>
To: ocfs2-devel@oss.oracle.com
Subject: [Ocfs2-devel] lvb length issue [was Re: [ocfs2-tools-devel] question of ocfs2_controld (Jun 27)]
Date: Tue, 7 Jul 2009 11:01:13 -0500 [thread overview]
Message-ID: <20090707160113.GA9140@redhat.com> (raw)
In-Reply-To: <4A51ED7F.2040105@suse.de>
On Mon, Jul 06, 2009 at 08:26:39PM +0800, Coly Li wrote:
> DLM_USER_LVB_LEN is defined to 32.
> DLM_LVB_LEN is 64.
Yes, the kernel dlm api allows a variable lvb size, but the user dlm api fixes
it at 32.
Do you need to actually use a 64 byte lvb from userspace? Or do you just need
to create the locksapce with a 64 byte lvb? We could add a flag to work
around the later fairly easily. Changing the dlm user/kernel interface to
copy variable size lvb's would take some significant work.
Dave
next prev parent reply other threads:[~2009-07-07 16:01 UTC|newest]
Thread overview: 14+ messages / expand[flat|nested] mbox.gz Atom feed top
[not found] <4A451AB5.9070908@suse.de>
[not found] ` <20090626193436.GC4478@mail.oracle.com>
[not found] ` <4A45257C.6040704@suse.de>
[not found] ` <20090629080023.GB8373@mail.oracle.com>
2009-07-06 12:26 ` [Ocfs2-devel] lvb length issue [was Re: [ocfs2-tools-devel] question of ocfs2_controld (Jun 27)] Coly Li
2009-07-07 16:01 ` David Teigland [this message]
2009-07-07 17:06 ` Coly Li
2009-07-07 17:24 ` Sunil Mushran
2009-07-07 18:35 ` Coly Li
2009-07-07 17:47 ` Joel Becker
2009-07-08 14:15 ` David Teigland
2009-07-09 18:53 ` David Teigland
2009-07-09 20:55 ` Joel Becker
2009-07-09 21:55 ` David Teigland
2009-07-09 22:28 ` Joel Becker
2009-07-31 11:59 ` Coly Li
2009-07-31 16:21 ` David Teigland
2009-07-31 16:49 ` Coly Li
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