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From: Joel Becker <Joel.Becker@oracle.com>
To: ocfs2-devel@oss.oracle.com
Subject: [Ocfs2-devel] [PATCH 02/22] ocfs2: Add an incompat feature flag OCFS2_FEATURE_INCOMPAT_CLUSTERINFO
Date: Fri, 8 Oct 2010 17:15:54 -0700	[thread overview]
Message-ID: <20101009001554.GO13876@mail.oracle.com> (raw)
In-Reply-To: <4CAFA8B8.3050101@oracle.com>

On Fri, Oct 08, 2010 at 04:26:48PM -0700, Sunil Mushran wrote:
> On 10/08/2010 04:11 PM, Mark Fasheh wrote:
> >>   /*00*/	__u8   ci_stack[OCFS2_STACK_LABEL_LEN];
> >> -	__le32 ci_reserved;
> >> +	union {
> >> +		__le32 ci_reserved;
> >> +		struct {
> >> +			__u8 ci_reserved1;
> >> +			__u8 ci_reserved2;
> >> +			__u8 ci_reserved3;
> >> +			__u8 ci_stackflags;
> >>      
> > Just curious, why stick ci_stackflags at the bottom of this structure?
> >
> > Wouldn't putting it at the top allow us to grow the field in the future...
> >
> > Otherwise the patch looks good to me.
> >    
> 
> Grow stackflags? Hmm... did not think of that.
> 
> I don't have a good reason for putting it at the end. Well,
> when I put it, I thought I did. Not anymore.

	Do it.  I don't know that we'll ever grow it, but having the
field at the beginning reads better too.

Joel

-- 

"Always give your best, never get discouraged, never be petty; always
 remember, others may hate you.  Those who hate you don't win unless
 you hate them.  And then you destroy yourself."
	- Richard M. Nixon

Joel Becker
Consulting Software Developer
Oracle
E-mail: joel.becker at oracle.com
Phone: (650) 506-8127

  reply	other threads:[~2010-10-09  0:15 UTC|newest]

Thread overview: 30+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2010-10-08  0:15 [Ocfs2-devel] O2CB global heartbeat - hopefully final drop! Sunil Mushran
2010-10-08  0:15 ` [Ocfs2-devel] [PATCH 01/22] ocfs2/cluster: Add heartbeat mode configfs parameter Sunil Mushran
2010-10-08  0:15 ` [Ocfs2-devel] [PATCH 02/22] ocfs2: Add an incompat feature flag OCFS2_FEATURE_INCOMPAT_CLUSTERINFO Sunil Mushran
2010-10-08 23:11   ` Mark Fasheh
2010-10-08 23:26     ` Sunil Mushran
2010-10-09  0:15       ` Joel Becker [this message]
2010-10-09 11:41         ` Sunil Mushran
2010-10-09 17:35           ` Sunil Mushran
2010-10-11 21:46             ` Joel Becker
2010-10-08  0:15 ` [Ocfs2-devel] [PATCH 03/22] ocfs2: Add support for heartbeat=global mount option Sunil Mushran
2010-10-08  0:15 ` [Ocfs2-devel] [PATCH 04/22] ocfs2/dlm: Expose dlm_protocol in dlm_state Sunil Mushran
2010-10-08  0:15 ` [Ocfs2-devel] [PATCH 05/22] ocfs2/cluster: Get all heartbeat regions Sunil Mushran
2010-10-08  0:15 ` [Ocfs2-devel] [PATCH 06/22] ocfs2/dlm: Add message DLM_QUERY_REGION Sunil Mushran
2010-10-08  0:15 ` [Ocfs2-devel] [PATCH 07/22] ocfs2: Print message if user mounts without starting global heartbeat Sunil Mushran
2010-10-08  0:15 ` [Ocfs2-devel] [PATCH 08/22] ocfs2/dlm: Add message DLM_QUERY_NODEINFO Sunil Mushran
2010-10-08  0:15 ` [Ocfs2-devel] [PATCH 09/22] ocfs2/cluster: Print messages when adding/removing heartbeat regions Sunil Mushran
2010-10-08  0:15 ` [Ocfs2-devel] [PATCH 10/22] ocfs2/cluster: Print messages when adding/removing nodes Sunil Mushran
2010-10-08  0:33   ` Sunil Mushran
2010-10-08  0:15 ` [Ocfs2-devel] [PATCH 11/22] ocfs2/cluster: Check slots for unconfigured live nodes Sunil Mushran
2010-10-08  0:15 ` [Ocfs2-devel] [PATCH 12/22] ocfs2/cluster: Reorganize o2hb debugfs init Sunil Mushran
2010-10-08  0:15 ` [Ocfs2-devel] [PATCH 13/22] ocfs2/cluster: Maintain live node bitmap per heartbeat region Sunil Mushran
2010-10-08  0:15 ` [Ocfs2-devel] [PATCH 14/22] ocfs2/cluster: Track number of global heartbeat regions Sunil Mushran
2010-10-08  0:15 ` [Ocfs2-devel] [PATCH 15/22] ocfs2/cluster: Track bitmap of live " Sunil Mushran
2010-10-08  0:15 ` [Ocfs2-devel] [PATCH 16/22] ocfs2/cluster: Maintain bitmap of quorum regions Sunil Mushran
2010-10-08  0:15 ` [Ocfs2-devel] [PATCH 17/22] ocfs2/cluster: Maintain bitmap of failed regions Sunil Mushran
2010-10-08  0:15 ` [Ocfs2-devel] [PATCH 18/22] ocfs2/cluster: Create debugfs files for live, quorum and failed region bitmaps Sunil Mushran
2010-10-08  0:15 ` [Ocfs2-devel] [PATCH 19/22] ocfs2/cluster: Create debugfs dir/files for each region Sunil Mushran
2010-10-08  0:15 ` [Ocfs2-devel] [PATCH 20/22] ocfs2/cluster: Add mlogs for heartbeat up/down events Sunil Mushran
2010-10-08  0:15 ` [Ocfs2-devel] [PATCH 21/22] ocfs2/cluster: Show per region heartbeat elapsed time Sunil Mushran
2010-10-08  0:15 ` [Ocfs2-devel] [PATCH 22/22] ocfs2/dlm: Bump up dlm protocol to version 1.1 Sunil Mushran

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