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  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]
Date:	Thu, 28 Jun 2007 09:28:36 +1000
From:	Nathan Scott <nscott@...nex.com>
To:	David Chinner <dgc@....com>, Andreas Dilger <adilger@...sterfs.com>
Cc:	xfs-oss <xfs@....sgi.com>,
	"Amit K. Arora" <aarora@...ux.vnet.ibm.com>,
	linux-fsdevel@...r.kernel.org, linux-ext4@...r.kernel.org,
	suparna@...ibm.com, cmm@...ibm.com
Subject: Re: [PATCH 4/7][TAKE5] support new modes in fallocate

On Wed, 2007-06-27 at 23:36 +1000, David Chinner wrote:
> .... Allows setup_swap_extents() to use preallocated files on XFS
> filesystems for swap files without ever needing to convert them.

Using unwritten extents (as opposed to the MKSWAP flag mentioned
earlier) has the unfortunate down side of requiring transactions,
possibly additional IO, and memory allocation during swap.  (but,
this patch should probably go in regardless, as teaching generic
code about unwritten extents is not a bad idea).

cheers.

--
Nathan

-
To unsubscribe from this list: send the line "unsubscribe linux-ext4" in
the body of a message to majordomo@...r.kernel.org
More majordomo info at  http://vger.kernel.org/majordomo-info.html

Powered by blists - more mailing lists