From: James Bottomley <James.Bottomley@steeleye.com>
To: Linus Torvalds <torvalds@osdl.org>
Cc: Andrew Morton <akpm@osdl.org>, Paul Jackson <pj@sgi.com>,
PARISC list <parisc-linux@lists.parisc-linux.org>,
Linux Kernel <linux-kernel@vger.kernel.org>
Subject: Re: [PATCH] Fix the cpumask rewrite
Date: 26 Jun 2004 14:33:55 -0500 [thread overview]
Message-ID: <1088278436.1943.148.camel@mulgrave> (raw)
In-Reply-To: <Pine.LNX.4.58.0406261203370.16079@ppc970.osdl.org>
On Sat, 2004-06-26 at 14:11, Linus Torvalds wrote:
> It seems the pa-risc optimizer for gcc is somehow broken. I just checked
> on x86:
>
> #define test_bit(x,y) \
> (!!((1ul << x) & *(y)))
>
> int test(unsigned long *a)
> {
> while (test_bit(0, a));
> }
OK, this one definitely compiles to a non reaload loop on parisc. I
concede we need the volatile.
James
next prev parent reply other threads:[~2004-06-26 19:34 UTC|newest]
Thread overview: 41+ messages / expand[flat|nested] mbox.gz Atom feed top
2004-06-26 16:08 [PATCH] Fix the cpumask rewrite James Bottomley
2004-06-26 16:32 ` Linus Torvalds
2004-06-26 16:44 ` Linus Torvalds
2004-06-26 16:46 ` James Bottomley
2004-06-26 16:54 ` Linus Torvalds
2004-06-26 17:18 ` James Bottomley
2004-06-26 18:01 ` Linus Torvalds
2004-06-26 18:28 ` Vojtech Pavlik
2004-06-26 18:54 ` Linus Torvalds
2004-06-26 19:02 ` James Bottomley
2004-06-26 19:13 ` Linus Torvalds
2004-06-26 19:13 ` Vojtech Pavlik
2004-06-26 18:59 ` James Bottomley
2004-06-26 19:11 ` Linus Torvalds
2004-06-26 19:33 ` James Bottomley [this message]
2004-06-28 23:16 ` Jonathan Lundell
2004-07-01 13:11 ` Pavel Machek
2004-07-01 14:07 ` [parisc-linux] " Alan Cox
2004-07-01 16:15 ` Linus Torvalds
2004-07-01 16:52 ` Jeff Garzik
2004-07-01 17:42 ` Linus Torvalds
2004-06-26 22:18 ` Chris Wedgwood
2004-06-26 22:48 ` Linus Torvalds
2004-06-26 22:54 ` [parisc-linux] " Alan Cox
2004-06-27 0:05 ` Chris Wedgwood
2004-06-27 12:00 ` Matthias Urlichs
2004-06-27 22:41 ` Chris Wedgwood
2004-06-28 1:24 ` Matthias Urlichs
2004-06-28 5:42 ` Chris Wedgwood
2004-06-28 6:55 ` Matthias Urlichs
2004-06-28 7:02 ` Chris Wedgwood
2004-06-28 7:19 ` Matthias Urlichs
2004-06-27 14:37 ` Alan Cox
2004-07-01 13:33 ` Pavel Machek
2004-07-01 17:43 ` Chris Wedgwood
2004-06-26 23:37 ` jiffies_64 Chris Wedgwood
2004-06-27 1:55 ` more (insane) jiffies ranting Chris Wedgwood
2004-06-27 17:39 ` Linus Torvalds
2004-06-27 17:39 ` [parisc-linux] " Linus Torvalds
2004-06-27 17:39 ` Linus Torvalds
2004-06-26 16:32 ` [PATCH] Fix the cpumask rewrite Linus Torvalds
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