From: Andi Kleen <andi@firstfloor.org>
To: "Robert P. J. Day" <rpjday@crashcourse.ca>
Cc: Linux Kernel Mailing List <linux-kernel@vger.kernel.org>,
Andrew Morton <akpm@osdl.org>
Subject: Re: [PATCH] RWSEM: Rewrite rwsem.c and rwsem-spinlock.c more simply.
Date: 25 Mar 2008 13:08:45 +0100 [thread overview]
Message-ID: <87skyfgg4y.fsf@basil.nowhere.org> (raw)
In-Reply-To: <alpine.LFD.1.00.0803250659530.18358@localhost.localdomain>
"Robert P. J. Day" <rpjday@crashcourse.ca> writes:
> Rewrite these source files more simply by deleting the superfluous
> "tsk" task_struct pointer and rephrasing in terms of the "current"
> task pointer.
This is likely a code pessimization because "current" is inline
assembler and many gcc versions cannot CSE it.
-Andi
next prev parent reply other threads:[~2008-03-25 12:08 UTC|newest]
Thread overview: 6+ messages / expand[flat|nested] mbox.gz Atom feed top
2008-03-25 11:02 Robert P. J. Day
2008-03-25 12:08 ` Andi Kleen [this message]
2008-03-25 12:27 ` Robert P. J. Day
2008-03-25 12:36 ` Andi Kleen
2008-03-25 12:42 ` Robert P. J. Day
2008-03-25 19:14 ` Andrew Morton
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