Re: Will barrier support for ext3 be enabled by default for FC3 or errata kernel
From: Kenneth Porter <shiva sewingwitch com>
To: Development discussions related to Fedora Core <fedora-devel-list redhat com>
Subject: Re: Will barrier support for ext3 be enabled by default for FC3 or errata kernel
Date: Tue, 24 Aug 2004 02:38:09 -0700
--On Tuesday, August 24, 2004 9:54 AM +0200 Arjan van de Ven
<arjanv redhat com> wrote:
Barriers (or in scsi terms "ordered tags") basically tell the disk
"don't reorder past THIS point". In principle this alleviates the need
for the journalling filesystem to wait on the first IO before submitting
the second IO (the metadata one).