[PATCH 0/2] fix for slow unmount on ext4 - bug 543617 on lp

[Andy Whitcroft]

On Thu, May 06, 2010 at 01:34:58PM +0300, Surbhi Palande wrote:
> The following two patches fix the bug 543617 on launchpad. The first patch is
> a revert of a temporary fix of this bug. The second patch is a hack which
> solves this bug. To resolve this issue without any side effects and
> further ado, we can for now, consider the second patch for lucid.

This first revert represents the patch which Kees has already requested
we revert as it has some unexpected side effects performance wise on for
example unmounting loop back devices.

> However, there is another bigger patch by Jens Axboe which is
> submitted as a fix for this regression/bug. We will pick this patch from
> stable as and when it is released and at that point revert the second
> patch in this series that is intended to fix the issue for now.

-apw