[PATCH v12 04/12] KVM: guest_memfd: Add slab-allocated inode cache

[Ackerley Tng]

Sean Christopherson <seanjc at google.com> writes:

> From: Shivank Garg <shivankg at amd.com>
>
> Add a dedicated gmem_inode structure and a slab-allocateda inode cache for
> guest memory backing, similar to how shmem handles inodes.
>
> This adds the necessary allocation/destruction functions and prepares
> for upcoming guest_memfd NUMA policy support changes.  Using a dedicated
> structure will also allow for additional cleanups, e.g. to track flags in
> gmem_inode instead of i_private.
>
> Signed-off-by: Shivank Garg <shivankg at amd.com>
> Tested-by: Ashish Kalra <ashish.kalra at amd.com>
> [sean: s/kvm_gmem_inode_info/gmem_inode, name init_once()]
> Signed-off-by: Sean Christopherson <seanjc at google.com>

Reviewed-by: Ackerley Tng <ackerleytng at google.com>
Tested-by: Ackerley Tng <ackerleytng at google.com>

> ---
>  virt/kvm/guest_memfd.c | 77 +++++++++++++++++++++++++++++++++++++++++-
>  1 file changed, 76 insertions(+), 1 deletion(-)
>
> 
> [...snip...]
>