[PATCH kernel v8 05/31] vfio: powerpc/spapr: Move locked_vm accounting to helpers
david at gibson.dropbear.id.au
Wed Apr 15 14:09:15 AEST 2015
On Fri, Apr 10, 2015 at 04:30:47PM +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 <aik at ozlabs.ru>
Reviewed-by: David Gibson <david at gibson.dropbear.id.au>
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_!
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