From: David Howells <dhowells@redhat.com>
To: "H. Peter Anvin" <hpa@zytor.com>
Cc: torvalds@osdl.org, akpm@osdl.org, benh@kernel.crashing.org,
linux-kernel@vger.kernel.org, johannes@sipsolutions.net
Subject: Re: [PATCH] Fix get_order() [try #2]
Date: Tue, 06 Mar 2007 18:41:07 +0000 [thread overview]
Message-ID: <11342.1173206467@redhat.com> (raw)
In-Reply-To: <45EDB4D2.5080702@zytor.com>
H. Peter Anvin <hpa@zytor.com> wrote:
> Eh? roundup_pow_of_two(1) should be 0; 2^0 = 1.
Nonono.
roundup_pow_of_two(0) => ?
roundup_pow_of_two(1) => 1
roundup_pow_of_two(2) => 2
roundup_pow_of_two(3) => 4
roundup_pow_of_two(4) => 4
roundup_pow_of_two(5) => 8
roundup_pow_of_two(6) => 8
roundup_pow_of_two(7) => 8
roundup_pow_of_two(8) => 8
roundup_pow_of_two(9) => 16
roundup_pow_of_two(10) => 16
roundup_pow_of_two(11) => 16
...
David
next prev parent reply other threads:[~2007-03-06 18:41 UTC|newest]
Thread overview: 8+ messages / expand[flat|nested] mbox.gz Atom feed top
2007-03-06 18:34 [PATCH] Fix get_order() [try #2] David Howells
2007-03-06 18:37 ` H. Peter Anvin
2007-03-06 18:41 ` David Howells [this message]
2007-03-06 18:39 ` H. Peter Anvin
2007-03-06 18:47 ` David Howells
2007-03-06 18:51 ` H. Peter Anvin
2007-03-06 19:42 ` Alexey Dobriyan
2007-03-06 20:01 ` David Howells
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