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From: Valdis.Kletnieks@vt.edu
To: Huang Ying <ying.huang@intel.com>
Cc: Andrew Morton <akpm@linux-foundation.org>,
	linux-kernel@vger.kernel.org, Andi Kleen <andi@firstfloor.org>,
	Peter Zijlstra <peterz@infradead.org>,
	Linus Torvalds <torvalds@linux-foundation.org>,
	Ingo Molnar <mingo@elte.hu>, Chris Mason <chris.mason@oracle.com>
Subject: Re: [RFC -v9 4/4] net, rds, Replace xlist in net/rds/xlist.h with llist
Date: Thu, 23 Dec 2010 02:05:17 -0500	[thread overview]
Message-ID: <25219.1293087917@localhost> (raw)
In-Reply-To: Your message of "Thu, 23 Dec 2010 13:43:23 +0800." <1293083003-19577-5-git-send-email-ying.huang@intel.com>

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On Thu, 23 Dec 2010 13:43:23 +0800, Huang Ying said:
> The functionality of xlist and llist is almost same.  This patch
> replace xlist with llist to avoid code duplication.

>  /*
> - * this takes a list head of mrs and turns it into an xlist of clusters.
> - * each cluster has an xlist of MR_CLUSTER_SIZE mrs that are ready for
> - * reuse.
> + * this takes a list head of mrs and turns it into linked llist nodes.
>   */

This comment change loses a lot of information.  The original 3 lines
tells me a lot about what the data structure is and what it's used for,
the replacement is a 'b +=5; /* add 5 to b */' type of comment.



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  reply	other threads:[~2010-12-23  7:06 UTC|newest]

Thread overview: 13+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2010-12-23  5:43 [RFC -v9 0/4] Lock-less list Huang Ying
2010-12-23  5:43 ` [RFC -v9 1/4] Add Kconfig option ARCH_HAVE_NMI_SAFE_CMPXCHG Huang Ying
2010-12-23 17:35   ` David Miller
2010-12-24  0:56     ` Huang Ying
2010-12-23  5:43 ` [RFC -v9 2/4] lib, Add lock-less NULL terminated single list Huang Ying
2010-12-23  5:43 ` [RFC -v9 3/4] irq_work, Use llist in irq_work Huang Ying
2010-12-23  5:43 ` [RFC -v9 4/4] net, rds, Replace xlist in net/rds/xlist.h with llist Huang Ying
2010-12-23  7:05   ` Valdis.Kletnieks [this message]
2010-12-23  8:31     ` Huang Ying
2010-12-23 21:51   ` Chris Mason
2010-12-24  0:29     ` Huang Ying
2010-12-23  6:05 ` [RFC -v9 0/4] Lock-less list Valdis.Kletnieks
2010-12-23  8:31   ` Huang Ying

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