From: Linus Torvalds <torvalds@linux-foundation.org>
To: Ingo Molnar <mingo@elte.hu>
Cc: Linux Kernel Mailing List <linux-kernel@vger.kernel.org>,
Thomas Gleixner <tglx@linutronix.de>,
Peter Zijlstra <a.p.zijlstra@chello.nl>,
Joerg Roedel <joerg.roedel@amd.com>
Subject: Re: [GIT PULL] core kernel fixes
Date: Fri, 10 Jul 2009 12:52:18 -0700 (PDT) [thread overview]
Message-ID: <alpine.LFD.2.01.0907101249060.3352@localhost.localdomain> (raw)
In-Reply-To: <20090710193110.GA28281@elte.hu>
On Fri, 10 Jul 2009, Ingo Molnar wrote:
> >
> > but I really migth have done soemthing wrong there. It's a simple
> > function, but somebody needs to double-check that I haven't made
> > it worse.
>
> Looks correct to me.
Note, I didn't look at how 'end' works, and it really does matter if 'end'
is an "inclusive" or "exclusive" end pointer address. So my replacement
overlap() function was written more as a conceptual patch - I did not
check the exact semantics of the arguments passed in.
If 'end' is exclusive, then 'b1' should be calculated as 'a1+size-1',
because the ranges must have the same rules. And then you should use the
'strict inequality' operators for testing the ranges.
Linus
next prev parent reply other threads:[~2009-07-10 19:52 UTC|newest]
Thread overview: 104+ messages / expand[flat|nested] mbox.gz Atom feed top
2009-07-10 16:28 Ingo Molnar
2009-07-10 19:06 ` Linus Torvalds
2009-07-10 19:31 ` Ingo Molnar
2009-07-10 19:51 ` [PATCH] dma-debug: Fix the overlap() function to be correct and readable Ingo Molnar
2009-07-10 20:07 ` Linus Torvalds
2009-07-10 20:34 ` Ingo Molnar
2009-07-14 10:15 ` Jaswinder Singh Rajput
2009-07-14 10:37 ` Jaswinder Singh Rajput
2009-07-14 10:52 ` Jaswinder Singh Rajput
2009-07-10 19:52 ` Linus Torvalds [this message]
2009-07-10 20:02 ` [GIT PULL] core kernel fixes Ingo Molnar
2009-07-10 20:36 ` [GIT PULL, v2] " Ingo Molnar
2009-07-13 14:52 ` [GIT PULL] " Joerg Roedel
-- strict thread matches above, loose matches on Subject: below --
2020-01-29 11:53 Ingo Molnar
2020-01-29 19:10 ` pr-tracker-bot
2019-05-18 8:51 Ingo Molnar
2019-05-19 17:45 ` pr-tracker-bot
2019-05-16 15:51 Ingo Molnar
2019-05-16 18:20 ` pr-tracker-bot
2018-07-21 11:58 Ingo Molnar
2017-12-06 22:01 Ingo Molnar
2017-11-05 14:33 Ingo Molnar
2017-11-05 18:09 ` Linus Torvalds
2017-11-05 19:53 ` Josh Poimboeuf
2017-11-05 20:12 ` Linus Torvalds
2017-11-05 21:01 ` Josh Poimboeuf
2017-07-21 10:01 Ingo Molnar
2016-10-18 10:14 Ingo Molnar
2016-07-13 10:55 Ingo Molnar
2016-04-03 10:45 Ingo Molnar
2015-02-06 18:28 Ingo Molnar
2012-10-23 10:57 Ingo Molnar
2012-08-03 16:31 Ingo Molnar
2012-08-03 16:55 ` Darren Hart
2012-08-03 17:01 ` Ingo Molnar
2012-08-03 17:24 ` Darren Hart
2012-06-15 18:45 Ingo Molnar
2012-01-26 18:05 Ingo Molnar
2011-08-04 20:45 Ingo Molnar
2011-04-02 10:21 Ingo Molnar
2011-03-25 12:52 Ingo Molnar
2011-01-21 2:11 Ingo Molnar
2011-01-15 15:15 Ingo Molnar
2010-10-05 19:12 Ingo Molnar
2010-10-05 20:15 ` Linus Torvalds
2010-10-05 21:09 ` Paul E. McKenney
2010-10-05 21:45 ` Linus Torvalds
2010-10-05 22:05 ` Paul E. McKenney
2010-10-06 2:56 ` Eric Dumazet
2010-10-06 4:59 ` Paul E. McKenney
2010-10-06 18:20 ` Ingo Molnar
2010-10-06 21:27 ` Paul E. McKenney
2010-10-07 8:11 ` Ingo Molnar
2010-10-07 17:42 ` Paul E. McKenney
2010-09-08 13:04 Ingo Molnar
2010-03-26 14:53 Ingo Molnar
2010-03-13 16:35 Ingo Molnar
2009-12-18 18:52 Ingo Molnar
2009-11-10 17:53 Ingo Molnar
2009-10-23 14:53 Ingo Molnar
2009-10-13 18:29 Ingo Molnar
2009-10-08 19:06 Ingo Molnar
2009-10-08 19:16 ` Linus Torvalds
2009-10-08 19:20 ` Ingo Molnar
2009-09-21 13:13 Ingo Molnar
2009-08-13 18:54 Ingo Molnar
2009-08-09 16:07 Ingo Molnar
2009-08-09 18:41 ` Darren Hart
2009-06-20 17:30 Ingo Molnar
2009-06-20 18:49 ` Linus Torvalds
2009-06-20 19:01 ` Linus Torvalds
2009-06-20 20:27 ` Ingo Molnar
2009-06-21 17:12 ` Thomas Gleixner
2009-06-21 17:37 ` Linus Torvalds
2009-06-21 17:57 ` Linus Torvalds
2009-06-21 19:26 ` Thomas Gleixner
2009-05-18 14:23 Ingo Molnar
2009-05-18 15:48 ` Linus Torvalds
2009-05-18 19:20 ` Thomas Gleixner
2009-05-19 20:52 ` Linus Torvalds
2009-05-19 21:45 ` Thomas Gleixner
2009-05-19 22:20 ` Darren Hart
2009-05-05 9:33 Ingo Molnar
2009-01-30 23:12 [git pull] " Ingo Molnar
2009-01-26 17:24 Ingo Molnar
2009-01-11 14:36 Ingo Molnar
2008-12-04 19:39 Ingo Molnar
2008-11-29 19:36 Ingo Molnar
2008-11-18 14:14 Ingo Molnar
2008-11-07 16:28 Ingo Molnar
2008-10-30 23:29 Ingo Molnar
2008-10-15 12:50 [git pull] core kernel updates for v2.6.28 Ingo Molnar
2008-10-16 22:32 ` Linus Torvalds
2008-10-17 6:23 ` [git pull] core kernel fixes Ingo Molnar
2008-08-28 11:44 Ingo Molnar
2008-08-18 18:35 Ingo Molnar
2008-07-24 15:13 Ingo Molnar
2008-06-30 15:32 Ingo Molnar
2008-06-30 17:02 ` Vegard Nossum
2008-06-30 18:20 ` Ingo Molnar
2008-06-30 18:43 ` Vegard Nossum
2008-06-30 19:46 ` Thomas Gleixner
2008-06-30 19:51 ` Vegard Nossum
2008-06-30 19:54 ` Thomas Gleixner
2008-06-23 19:45 Ingo Molnar
2008-06-19 15:16 Ingo Molnar
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