On Fri, Jun 05, 2015 at 04:35:01PM +1000, Alexey Kardashevskiy wrote:

There moves locked pages accounting to helpers.
Later they will be reused for Dynamic DMA windows (DDW).

This reworks debug messages to show the current value and the limit.

This stores the locked pages number in the container so when unlocking
the iommu table pointer won't be needed. This does not have an effect
now but it will with the multiple tables per container as then we will
allow attaching/detaching groups on fly and we may end up having
a container with no group attached but with the counter incremented.

While we are here, update the comment explaining why RLIMIT_MEMLOCK
might be required to be bigger than the guest RAM. This also prints
pid of the current process in pr_warn/pr_debug.

Signed-off-by: Alexey Kardashevskiy <redacted>
[aw: for the vfio related changes]
Acked-by: Alex Williamson <redacted>
Reviewed-by: David Gibson <redacted>
Reviewed-by: Gavin Shan <redacted>
---
Changes:
v12:
* added WARN_ON_ONCE() to decrement_locked_vm() for the sake of
documentation

Reviewed-by: David Gibson <redacted>

-- 
David Gibson			| I'll have my music baroque, and my code
david AT gibson.dropbear.id.au	| minimalist, thank you.  NOT _the_ _other_
				| _way_ _around_!
http://www.ozlabs.org/~dgibson