linux-kernel - Re: [PATCH] Fix get

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]

Message-ID: <45EDB4D2.5080702@zytor.com>
Date:	Tue, 06 Mar 2007 10:37:06 -0800
From:	"H. Peter Anvin" <hpa@...or.com>
To:	David Howells <dhowells@...hat.com>
CC:	torvalds@...l.org, akpm@...l.org, benh@...nel.crashing.org,
	linux-kernel@...r.kernel.org, johannes@...solutions.net
Subject: Re: [PATCH] Fix get_order() [try #2]

David Howells wrote:
> From: David Howells <dhowells@...hat.com>
> 
> Provide an ilog2_up() that rounds its result up (ilog2() rounds down).
> 
> Fix get_order() to use ilog2_up() not ilog2() to get the correct rounding.
> 
> Adjust the documentation surrounding ilog2() and co. to indicate what rounding
> they perform.
> 
> Fix roundup_pow_of_two(1) to give 1, not 0.

Eh? roundup_pow_of_two(1) should be 0; 2^0 = 1.

	-hpa
-
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@...r.kernel.org
More majordomo info at  http://vger.kernel.org/majordomo-info.html
Please read the FAQ at  http://www.tux.org/lkml/