[PATCH 1/3] UBUNTU: SAUCE: Make populate_rootfs asynchronous

Tim Gardner tim.gardner at canonical.com
Wed Dec 9 16:41:00 UTC 2009


Andy Whitcroft wrote:
> From: Surbhi Palande <surbhi.palande at canonical.com>
> 
> The expansion of the initramfs is completely independant of other
> boot activities.  The original data is already present at boot and the
> filesystem is not required until we are ready to start init.  It is
> therefore reasonable to populate the rootfs asynchronously.  Move this
> processing to an async call.
> 
> Signed-off-by: Surbhi Palande <surbhi.palande at canonical.com>
> Signed-off-by: Andy Whitcroft <apw at canonical.com>

Perhaps the commit log message should also describe _why_ we're applying
this patch, e.g., it improves boot performance on a wide range of
multi-core CPU's without adversely impacting single core CPUs (or
something like that). You know we'll get that question as soon as we try
upstreaming it.

rtg
-- 
Tim Gardner tim.gardner at canonical.com




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