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: <20161021103537.GA14327@infradead.org>
Date:   Fri, 21 Oct 2016 03:35:37 -0700
From:   Christoph Hellwig <hch@...radead.org>
To:     Jaegeuk Kim <jaegeuk@...nel.org>
Cc:     linux-kernel@...r.kernel.org, linux-fsdevel@...r.kernel.org,
        linux-f2fs-devel@...ts.sourceforge.net
Subject: Re: [PATCH 1/3] f2fs: add fast path for find_next_{zero}bit

On Thu, Oct 20, 2016 at 07:28:45PM -0700, Jaegeuk Kim wrote:
> This patch adds checking the first two bits when searching zero or one bits to
> avoid costly find_next_{zero}bit operations.

Please fix this in the generic iplementations instead of adding your
local workarounds.

Powered by blists - more mailing lists

Powered by Openwall GNU/*/Linux Powered by OpenVZ