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] [day] [month] [year] [list]
Date:	Tue, 27 Nov 2012 14:37:49 -0500
From:	Theodore Ts'o <>
To:	Zach Brown <>
Cc:	Ext4 Developers List <>
Subject: Re: [PATCH 3/6 -v3] libext2fs: add ext2fs_bitcount() function

On Tue, Nov 27, 2012 at 09:50:23AM -0800, Zach Brown wrote:
> Agreed.  I'll chuck it at the end of my fun-projects-some-day list as
> well, but getting it right for all the platforms that e2fsprogs
> supports.. meh :).

It's not strictly necessary to get things right for all platforms; we
already have some accelerations using asm statements which only work
for one platform already --- although it's already the case that I
didn't bother to make 64-bit set/clear/test bit optimizations for x86,
mainly because I didn't think it was worth it, especially on modern
CPU's.  (And with the red/black tree backend for bitmaps, the asm
bitops are even less important.)

							- Ted
To unsubscribe from this list: send the line "unsubscribe linux-ext4" in
the body of a message to
More majordomo info at

Powered by blists - more mailing lists