linux-ext4 - Unable to disable barriers

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Date:	Mon, 28 Jul 2008 11:48:37
From:	Gary Hawco <ghawco@....net>
To:	"linux-ext4@...r.kernel.org" <linux-ext4@...r.kernel.org>,
	Theodore Tso <tytso@....edu>
Subject: Unable to disable barriers

Subject pretty much says it all.

For testing purposes I tried to disable barriers in fstab (barriers=0).  On
reboot the filesystem will not mount read/write until barriers are reenabled.

This occurs whether I use ordered data mode or data writeback mode, in both
Gentoo and Slackware 12.1

Is this behavior by design (that barriers can not be disabled)?

Thanks,
Gary

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