netdev - Re: [PATCH v3 01/17] hashtable: introduce a small and naive hashtable

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Message-ID: <1346779027.27919.15.camel@gandalf.local.home>
Date:	Tue, 04 Sep 2012 13:17:07 -0400
From:	Steven Rostedt <rostedt@...dmis.org>
To:	Pedro Alves <palves@...hat.com>
Cc:	Mathieu Desnoyers <mathieu.desnoyers@...icios.com>,
	Sasha Levin <levinsasha928@...il.com>,
	Tejun Heo <tj@...nel.org>, torvalds@...ux-foundation.org,
	akpm@...ux-foundation.org, linux-kernel@...r.kernel.org,
	linux-mm@...ck.org, paul.gortmaker@...driver.com,
	davem@...emloft.net, mingo@...e.hu, ebiederm@...ssion.com,
	aarcange@...hat.com, ericvh@...il.com, netdev@...r.kernel.org,
	josh@...htriplett.org, eric.dumazet@...il.com, axboe@...nel.dk,
	agk@...hat.com, dm-devel@...hat.com, neilb@...e.de,
	ccaulfie@...hat.com, teigland@...hat.com,
	Trond.Myklebust@...app.com, bfields@...ldses.org,
	fweisbec@...il.com, jesse@...ira.com,
	venkat.x.venkatsubra@...cle.com, ejt@...hat.com,
	snitzer@...hat.com, edumazet@...gle.com, linux-nfs@...r.kernel.org,
	dev@...nvswitch.org, rds-devel@....oracle.com, lw@...fujitsu.com
Subject: Re: [PATCH v3 01/17] hashtable: introduce a small and naive
 hashtable

On Tue, 2012-09-04 at 17:40 +0100, Pedro Alves wrote:

> BTW, you can also go a step further and remove the need to close with double }},
> with something like:
> 
> #define do_for_each_ftrace_rec(pg, rec)                                          \
>         for (pg = ftrace_pages_start, rec = &pg->records[pg->index];             \
>              pg && rec == &pg->records[pg->index];                               \
>              pg = pg->next)                                                      \
>           for (rec = pg->records; rec < &pg->records[pg->index]; rec++)
> 

Yeah, but why bother? It's hidden in a macro, and the extra '{ }' shows
that this is something "special".

-- Steve


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