From: Nick Piggin <piggin@cyberone.com.au>
To: Mitchell Blank Jr <mitch@sfgoth.com>
Cc: Andrew Morton <akpm@osdl.org>, linux-kernel@vger.kernel.org
Subject: Re: [PATCH] might_sleep() improvements
Date: Tue, 02 Sep 2003 18:14:45 +1000 [thread overview]
Message-ID: <3F545175.1080505@cyberone.com.au> (raw)
In-Reply-To: <20030902075145.GA12817@sfgoth.com>
Mitchell Blank Jr wrote:
>Andrew - I thought this might be appropriate for -mm kernels.
>
>This patch makes the following improvements to might_sleep():
>
> o Add a "might_sleep_if()" macro for when we might sleep only if some
> condition is met. I think this is a bit better than the currently used
> "if (cond) might_sleep();" since it's clearer that the test won't be
> compiled in if spinlock sleep debugging is turned off. (Obviously
> gcc is smart enough to omit simple conditions in that case) It also
> looks cleaner, IMO. Think of it as analogous to BUG()/BUG_ON().
>
I think these should be pushed down to where the sleeping
actually happens if possible.
next prev parent reply other threads:[~2003-09-02 8:15 UTC|newest]
Thread overview: 9+ messages / expand[flat|nested] mbox.gz Atom feed top
2003-09-02 7:51 [PATCH] might_sleep() improvements Mitchell Blank Jr
2003-09-02 8:14 ` Nick Piggin [this message]
2003-09-02 8:32 ` Mitchell Blank Jr
2003-09-02 8:39 ` Nick Piggin
2003-09-02 8:36 ` Linus Torvalds
2003-09-02 8:44 ` Nick Piggin
2003-09-02 13:55 ` Robert Love
2003-09-02 18:39 ` Mitchell Blank Jr
2003-09-09 3:10 ` Rob Landley
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