From: Christoph Hellwig <hch@infradead.org>
To: Sheng Yang <sheng@linux.intel.com>
Cc: linux-kernel@vger.kernel.org, linux-mm <linux-mm@kvack.org>,
Ingo Molnar <mingo@elte.hu>, "H. Peter Anvin" <hpa@zytor.com>
Subject: Re: [PATCH] x86: Extend test_and_set_bit() test_and_clean_bit() to 64 bits in X86_64
Date: Thu, 14 May 2009 09:57:47 -0400 [thread overview]
Message-ID: <20090514135747.GA7926@infradead.org> (raw)
In-Reply-To: <1242202647-32446-1-git-send-email-sheng@linux.intel.com>
On Wed, May 13, 2009 at 04:17:27PM +0800, Sheng Yang wrote:
> This fix 44/45 bit width memory can't boot up issue. The reason is
> free_bootmem_node()->mark_bootmem_node()->__free() use test_and_clean_bit() to
> clean node_bootmem_map, but for 44bits width address, the idx set bit 31 (43 -
> 12), which consider as a nagetive value for bts.
Should we really have different prototypes for these helpers on
different architectures?
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next prev parent reply other threads:[~2009-05-14 13:56 UTC|newest]
Thread overview: 18+ messages / expand[flat|nested] mbox.gz Atom feed top
2009-05-13 8:17 [PATCH] x86: Extend test_and_set_bit() test_and_clean_bit() to 64 bits in X86_64 Sheng Yang
2009-05-13 8:38 ` Andi Kleen
2009-05-14 3:45 ` Sheng Yang
2009-05-14 8:32 ` Andi Kleen
2009-05-14 14:09 ` H. Peter Anvin
2009-05-14 14:16 ` Andi Kleen
2009-05-14 14:16 ` H. Peter Anvin
2009-05-14 14:27 ` Andi Kleen
2009-05-14 14:25 ` H. Peter Anvin
2009-05-14 14:33 ` Andi Kleen
2009-05-14 14:36 ` H. Peter Anvin
2009-05-13 16:18 ` H. Peter Anvin
2009-05-13 16:55 ` H. Peter Anvin
2009-05-13 17:29 ` H. Peter Anvin
2009-05-14 3:52 ` Sheng Yang
2009-05-14 14:09 ` H. Peter Anvin
2009-05-14 13:57 ` Christoph Hellwig [this message]
2009-05-14 14:29 ` H. Peter Anvin
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