[openfabrics-ewg] [PATCH] ehca backport linux_spinlock_to_2_6_9.patch

[Michael S. Tsirkin]

Quoting r. Hoang-Nam Nguyen <HNGUYEN at de.ibm.com>:
> Subject: Re: [PATCH] ehca backport linux_spinlock_to_2_6_9.patch
> 
> > IPoIB certainly already builds on RHEL U2 which is what 2.6.9 directory
> > supports. So why is this needed?
> If I compile against eg 2.6.9-42.3-RHEL, you're right, this patch
> is not necessary.
> I also compiled against 2.6.9 from kernel.org and saw that
> spin_trylock_irqsave() is not there.  I was surprised too. I might be
> wrong, but find+grep did not show it to me.
> Nam Nguyen

OK, this needs to be documented somewhere, but 2.6.9
from kernel.org can not actually work properly with
infiniband, and OFED does not support it.

-- 
MST