Once stop_machine() is gone from the CPU offline path, we won't be able
to depend on disabling preemption to prevent CPUs from going offline
from under us.
Use the get/put_online_cpus_atomic() APIs to prevent CPUs from going
offline, while invoking from atomic context.
Cc: Benjamin Herrenschmidt
On Sun, Jun 23, 2013 at 09:28:13AM +1000, Benjamin Herrenschmidt wrote:
On Sat, 2013-06-22 at 22:03 +1000, David Gibson wrote:
I think the interface should not take the group fd, but the container
fd. Holding a reference to *that* would keep the necessary things
around. But more to the
On Sat, Jun 22, 2013 at 08:28:06AM -0600, Alex Williamson wrote:
On Sat, 2013-06-22 at 22:03 +1000, David Gibson wrote:
On Thu, Jun 20, 2013 at 08:55:13AM -0600, Alex Williamson wrote:
On Thu, 2013-06-20 at 18:48 +1000, Alexey Kardashevskiy wrote:
On 06/20/2013 05:47 PM, Benjamin
On Mon, 2013-06-24 at 13:54 +1000, David Gibson wrote:
DDW means an API by which the guest can request the creation of
additional iommus for a given device (typically, in addition to the
default smallish 32-bit one using 4k pages, the guest can request
a larger window in 64-bit space using
On Mon, 2013-06-24 at 13:52 +1000, David Gibson wrote:
On Sat, Jun 22, 2013 at 08:28:06AM -0600, Alex Williamson wrote:
On Sat, 2013-06-22 at 22:03 +1000, David Gibson wrote:
On Thu, Jun 20, 2013 at 08:55:13AM -0600, Alex Williamson wrote:
On Thu, 2013-06-20 at 18:48 +1000, Alexey
