From: Andi Kleen <ak@suse.de>
To: Alex Pankratov <ap@swapped.cc>
Cc: acme@conectiva.com.br, linux-kernel@vger.kernel.org
Subject: Re: [PATCH] [2.6] [1/2] hlist: replace explicit checks of hlist fields w/ func calls
Date: Sat, 14 Feb 2004 01:28:05 +0100 [thread overview]
Message-ID: <20040214012805.52e4af60.ak@suse.de> (raw)
In-Reply-To: <4029D267.40307@swapped.cc>
On Tue, 10 Feb 2004 22:57:43 -0800
Alex Pankratov <ap@swapped.cc> wrote:
> Ugh, yeah, I thought about this. However my understand was that
> since hlist_null is statically allocated variable, its address
> will be a known constant at a link time (whether it's a static
> link or dynamic/run-time link - btw, excuse my lack of proper
> terminology here). So comparing something to &null would be
> equivalent to comparing to the constant and not require an
> extra register.
Hmm, you're right. Apparently I was still thinking about the bad
code generated by the standard list_heads. I guess it would be ok then.
Still your first patch was rather intrusive regarding interface changes,
so it may be a good idea to wait for 2.7 with this.
-Andi
next prev parent reply other threads:[~2004-02-11 7:50 UTC|newest]
Thread overview: 8+ messages / expand[flat|nested] mbox.gz Atom feed top
2004-02-11 6:28 [PATCH] [2.6] [1/2] hlist: replace explicit checks of hlist fields w/ func calls Alex Pankratov
2004-02-13 22:14 ` Andi Kleen
2004-02-11 6:57 ` Alex Pankratov
2004-02-11 12:10 ` Arnaldo Carvalho de Melo
2004-02-14 0:28 ` Andi Kleen [this message]
2004-02-11 16:37 ` Alex Pankratov
2004-02-12 4:52 ` Alex Pankratov
2004-02-12 8:43 ` Andi Kleen
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