Re: [PATCH kernel v8 15/31] powerpc/iommu: Fix IOMMU ownership control functions

2015-04-21 Thread David Gibson
On Mon, Apr 20, 2015 at 04:34:24PM +1000, Alexey Kardashevskiy wrote: > On 04/20/2015 12:46 PM, David Gibson wrote: > >On Fri, Apr 17, 2015 at 08:16:13PM +1000, Alexey Kardashevskiy wrote: > >>On 04/16/2015 04:10 PM, David Gibson wrote: > >>>On Fri, Apr 10, 2015 at 04:30:57PM +1000, Alexey Kardashe

Re: [PATCH kernel v8 15/31] powerpc/iommu: Fix IOMMU ownership control functions

2015-04-19 Thread Alexey Kardashevskiy
On 04/20/2015 12:46 PM, David Gibson wrote: On Fri, Apr 17, 2015 at 08:16:13PM +1000, Alexey Kardashevskiy wrote: On 04/16/2015 04:10 PM, David Gibson wrote: On Fri, Apr 10, 2015 at 04:30:57PM +1000, Alexey Kardashevskiy wrote: This adds missing locks in iommu_take_ownership()/ iommu_release_o

Re: [PATCH kernel v8 15/31] powerpc/iommu: Fix IOMMU ownership control functions

2015-04-19 Thread David Gibson
On Fri, Apr 17, 2015 at 08:16:13PM +1000, Alexey Kardashevskiy wrote: > On 04/16/2015 04:10 PM, David Gibson wrote: > >On Fri, Apr 10, 2015 at 04:30:57PM +1000, Alexey Kardashevskiy wrote: > >>This adds missing locks in iommu_take_ownership()/ > >>iommu_release_ownership(). > >> > >>This marks all

Re: [PATCH kernel v8 15/31] powerpc/iommu: Fix IOMMU ownership control functions

2015-04-17 Thread Alexey Kardashevskiy
On 04/16/2015 04:10 PM, David Gibson wrote: On Fri, Apr 10, 2015 at 04:30:57PM +1000, Alexey Kardashevskiy wrote: This adds missing locks in iommu_take_ownership()/ iommu_release_ownership(). This marks all pages busy in iommu_table::it_map in order to catch errors if there is an attempt to use

Re: [PATCH kernel v8 15/31] powerpc/iommu: Fix IOMMU ownership control functions

2015-04-15 Thread David Gibson
On Fri, Apr 10, 2015 at 04:30:57PM +1000, Alexey Kardashevskiy wrote: > This adds missing locks in iommu_take_ownership()/ > iommu_release_ownership(). > > This marks all pages busy in iommu_table::it_map in order to catch > errors if there is an attempt to use this table while ownership over it >

Re: [PATCH kernel v8 15/31] powerpc/iommu: Fix IOMMU ownership control functions

2015-04-10 Thread Alex Williamson
On Fri, 2015-04-10 at 16:30 +1000, Alexey Kardashevskiy wrote: > This adds missing locks in iommu_take_ownership()/ > iommu_release_ownership(). > > This marks all pages busy in iommu_table::it_map in order to catch > errors if there is an attempt to use this table while ownership over it > is tak