jffs2-choke-gc-thread.patch

I've noticed some pretty poor behavior on OLPC machines after bootup, when
gdm/X are starting.  The GCD monopolizes the scheduler (which in turns means
it gets to do more nand i/o), which results in processes taking much much
longer than they should to start.

As an example, on an OLPC machine going from OFW to a usable X (via auto-login
gdm) takes 2m 30s.  The majority of this time is consumed by the switch into
graphical mode.  With this patch, we cut a full 60s off of bootup time.  After
bootup, things are much snappier as well.

Note that we have seen a CRC node error with this patch that causes the machine
to fail to boot, but we've also seen that problem without this patch.

Signed-off-by: Andres Salomon <dilinger@debian.org>

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