[v1,3/7] vfio/ccw: move private initialization to callback
Commit Message
There's already a device initialization callback that is
used to initialize the release completion workaround.
Move the other elements of the vfio_ccw_private struct that
require distinct initialization over to that routine.
Signed-off-by: Eric Farman <farman@linux.ibm.com>
---
drivers/s390/cio/vfio_ccw_drv.c | 57 +++--------------------------
drivers/s390/cio/vfio_ccw_ops.c | 43 ++++++++++++++++++++++
drivers/s390/cio/vfio_ccw_private.h | 7 +++-
3 files changed, 55 insertions(+), 52 deletions(-)
Comments
On 10/19/22 12:21 PM, Eric Farman wrote:
> There's already a device initialization callback that is
> used to initialize the release completion workaround.
As discussed off-list, maybe clarify what callback you're talking about here and/or reference the commit that added it.
>
> Move the other elements of the vfio_ccw_private struct that
> require distinct initialization over to that routine.
>
> Signed-off-by: Eric Farman <farman@linux.ibm.com>
> ---
> drivers/s390/cio/vfio_ccw_drv.c | 57 +++--------------------------
> drivers/s390/cio/vfio_ccw_ops.c | 43 ++++++++++++++++++++++
> drivers/s390/cio/vfio_ccw_private.h | 7 +++-
> 3 files changed, 55 insertions(+), 52 deletions(-)
>
> diff --git a/drivers/s390/cio/vfio_ccw_drv.c b/drivers/s390/cio/vfio_ccw_drv.c
> index 4ee953c8ae39..cc9ed2fd970f 100644
> --- a/drivers/s390/cio/vfio_ccw_drv.c
> +++ b/drivers/s390/cio/vfio_ccw_drv.c
> @@ -24,10 +24,10 @@
> #include "vfio_ccw_private.h"
>
> struct workqueue_struct *vfio_ccw_work_q;
> -static struct kmem_cache *vfio_ccw_io_region;
> -static struct kmem_cache *vfio_ccw_cmd_region;
> -static struct kmem_cache *vfio_ccw_schib_region;
> -static struct kmem_cache *vfio_ccw_crw_region;
> +struct kmem_cache *vfio_ccw_io_region;
> +struct kmem_cache *vfio_ccw_cmd_region;
> +struct kmem_cache *vfio_ccw_schib_region;
> +struct kmem_cache *vfio_ccw_crw_region;
>
> debug_info_t *vfio_ccw_debug_msg_id;
> debug_info_t *vfio_ccw_debug_trace_id;
> @@ -74,7 +74,7 @@ int vfio_ccw_sch_quiesce(struct subchannel *sch)
> return ret;
> }
>
> -static void vfio_ccw_sch_io_todo(struct work_struct *work)
> +void vfio_ccw_sch_io_todo(struct work_struct *work)
> {
> struct vfio_ccw_private *private;
> struct irb *irb;
> @@ -110,7 +110,7 @@ static void vfio_ccw_sch_io_todo(struct work_struct *work)
> eventfd_signal(private->io_trigger, 1);
> }
>
> -static void vfio_ccw_crw_todo(struct work_struct *work)
> +void vfio_ccw_crw_todo(struct work_struct *work)
> {
> struct vfio_ccw_private *private;
>
> @@ -154,52 +154,7 @@ static struct vfio_ccw_private *vfio_ccw_alloc_private(struct subchannel *sch)
> if (!private)
> return ERR_PTR(-ENOMEM);
Not sure we really still need vfio_ccw_alloc_private() now or whether you can just kzalloc() inline right in vfio_ccw_sch_probe()
Either way:
Reviewed-by: Matthew Rosato <mjrosato@linux.ibm.com>
>
> - mutex_init(&private->io_mutex);
> - private->state = VFIO_CCW_STATE_STANDBY;
> - INIT_LIST_HEAD(&private->crw);
> - INIT_WORK(&private->io_work, vfio_ccw_sch_io_todo);
> - INIT_WORK(&private->crw_work, vfio_ccw_crw_todo);
> -
> - private->cp.guest_cp = kcalloc(CCWCHAIN_LEN_MAX, sizeof(struct ccw1),
> - GFP_KERNEL);
> - if (!private->cp.guest_cp)
> - goto out_free_private;
> -
> - private->io_region = kmem_cache_zalloc(vfio_ccw_io_region,
> - GFP_KERNEL | GFP_DMA);
> - if (!private->io_region)
> - goto out_free_cp;
> -
> - private->cmd_region = kmem_cache_zalloc(vfio_ccw_cmd_region,
> - GFP_KERNEL | GFP_DMA);
> - if (!private->cmd_region)
> - goto out_free_io;
> -
> - private->schib_region = kmem_cache_zalloc(vfio_ccw_schib_region,
> - GFP_KERNEL | GFP_DMA);
> -
> - if (!private->schib_region)
> - goto out_free_cmd;
> -
> - private->crw_region = kmem_cache_zalloc(vfio_ccw_crw_region,
> - GFP_KERNEL | GFP_DMA);
> -
> - if (!private->crw_region)
> - goto out_free_schib;
> return private;
> -
> -out_free_schib:
> - kmem_cache_free(vfio_ccw_schib_region, private->schib_region);
> -out_free_cmd:
> - kmem_cache_free(vfio_ccw_cmd_region, private->cmd_region);
> -out_free_io:
> - kmem_cache_free(vfio_ccw_io_region, private->io_region);
> -out_free_cp:
> - kfree(private->cp.guest_cp);
> -out_free_private:
> - mutex_destroy(&private->io_mutex);
> - kfree(private);
> - return ERR_PTR(-ENOMEM);
> }
>
> static void vfio_ccw_free_private(struct vfio_ccw_private *private)
> diff --git a/drivers/s390/cio/vfio_ccw_ops.c b/drivers/s390/cio/vfio_ccw_ops.c
> index cf383c729d53..626b8eb3507b 100644
> --- a/drivers/s390/cio/vfio_ccw_ops.c
> +++ b/drivers/s390/cio/vfio_ccw_ops.c
> @@ -50,8 +50,51 @@ static int vfio_ccw_mdev_init_dev(struct vfio_device *vdev)
> struct vfio_ccw_private *private =
> container_of(vdev, struct vfio_ccw_private, vdev);
>
> + mutex_init(&private->io_mutex);
> + private->state = VFIO_CCW_STATE_STANDBY;
> + INIT_LIST_HEAD(&private->crw);
> + INIT_WORK(&private->io_work, vfio_ccw_sch_io_todo);
> + INIT_WORK(&private->crw_work, vfio_ccw_crw_todo);
> init_completion(&private->release_comp);
> +
> + private->cp.guest_cp = kcalloc(CCWCHAIN_LEN_MAX, sizeof(struct ccw1),
> + GFP_KERNEL);
> + if (!private->cp.guest_cp)
> + goto out_free_private;
> +
> + private->io_region = kmem_cache_zalloc(vfio_ccw_io_region,
> + GFP_KERNEL | GFP_DMA);
> + if (!private->io_region)
> + goto out_free_cp;
> +
> + private->cmd_region = kmem_cache_zalloc(vfio_ccw_cmd_region,
> + GFP_KERNEL | GFP_DMA);
> + if (!private->cmd_region)
> + goto out_free_io;
> +
> + private->schib_region = kmem_cache_zalloc(vfio_ccw_schib_region,
> + GFP_KERNEL | GFP_DMA);
> + if (!private->schib_region)
> + goto out_free_cmd;
> +
> + private->crw_region = kmem_cache_zalloc(vfio_ccw_crw_region,
> + GFP_KERNEL | GFP_DMA);
> + if (!private->crw_region)
> + goto out_free_schib;
> +
> return 0;
> +
> +out_free_schib:
> + kmem_cache_free(vfio_ccw_schib_region, private->schib_region);
> +out_free_cmd:
> + kmem_cache_free(vfio_ccw_cmd_region, private->cmd_region);
> +out_free_io:
> + kmem_cache_free(vfio_ccw_io_region, private->io_region);
> +out_free_cp:
> + kfree(private->cp.guest_cp);
> +out_free_private:
> + mutex_destroy(&private->io_mutex);
> + return -ENOMEM;
> }
>
> static int vfio_ccw_mdev_probe(struct mdev_device *mdev)
> diff --git a/drivers/s390/cio/vfio_ccw_private.h b/drivers/s390/cio/vfio_ccw_private.h
> index 0fdff1435230..b35940057073 100644
> --- a/drivers/s390/cio/vfio_ccw_private.h
> +++ b/drivers/s390/cio/vfio_ccw_private.h
> @@ -116,6 +116,8 @@ struct vfio_ccw_private {
> } __aligned(8);
>
> int vfio_ccw_sch_quiesce(struct subchannel *sch);
> +void vfio_ccw_sch_io_todo(struct work_struct *work);
> +void vfio_ccw_crw_todo(struct work_struct *work);
>
> extern struct mdev_driver vfio_ccw_mdev_driver;
>
> @@ -163,7 +165,10 @@ static inline void vfio_ccw_fsm_event(struct vfio_ccw_private *private,
> }
>
> extern struct workqueue_struct *vfio_ccw_work_q;
> -
> +extern struct kmem_cache *vfio_ccw_io_region;
> +extern struct kmem_cache *vfio_ccw_cmd_region;
> +extern struct kmem_cache *vfio_ccw_schib_region;
> +extern struct kmem_cache *vfio_ccw_crw_region;
>
> /* s390 debug feature, similar to base cio */
> extern debug_info_t *vfio_ccw_debug_msg_id;
On Fri, 2022-10-28 at 14:52 -0400, Matthew Rosato wrote:
> On 10/19/22 12:21 PM, Eric Farman wrote:
> > There's already a device initialization callback that is
> > used to initialize the release completion workaround.
>
> As discussed off-list, maybe clarify what callback you're talking
> about here and/or reference the commit that added it.
Agreed. Will point out that it's private->release_comp, introduced with
commit ebb72b765fb49 ("vfio/ccw: Use the new device life cycle
helpers")
>
> >
> > Move the other elements of the vfio_ccw_private struct that
> > require distinct initialization over to that routine.
> >
> > Signed-off-by: Eric Farman <farman@linux.ibm.com>
> > ---
> > drivers/s390/cio/vfio_ccw_drv.c | 57 +++----------------------
> > ----
> > drivers/s390/cio/vfio_ccw_ops.c | 43 ++++++++++++++++++++++
> > drivers/s390/cio/vfio_ccw_private.h | 7 +++-
> > 3 files changed, 55 insertions(+), 52 deletions(-)
> >
> > diff --git a/drivers/s390/cio/vfio_ccw_drv.c
> > b/drivers/s390/cio/vfio_ccw_drv.c
> > index 4ee953c8ae39..cc9ed2fd970f 100644
> > --- a/drivers/s390/cio/vfio_ccw_drv.c
> > +++ b/drivers/s390/cio/vfio_ccw_drv.c
> > @@ -24,10 +24,10 @@
> > #include "vfio_ccw_private.h"
> >
> > struct workqueue_struct *vfio_ccw_work_q;
> > -static struct kmem_cache *vfio_ccw_io_region;
> > -static struct kmem_cache *vfio_ccw_cmd_region;
> > -static struct kmem_cache *vfio_ccw_schib_region;
> > -static struct kmem_cache *vfio_ccw_crw_region;
> > +struct kmem_cache *vfio_ccw_io_region;
> > +struct kmem_cache *vfio_ccw_cmd_region;
> > +struct kmem_cache *vfio_ccw_schib_region;
> > +struct kmem_cache *vfio_ccw_crw_region;
> >
> > debug_info_t *vfio_ccw_debug_msg_id;
> > debug_info_t *vfio_ccw_debug_trace_id;
> > @@ -74,7 +74,7 @@ int vfio_ccw_sch_quiesce(struct subchannel *sch)
> > return ret;
> > }
> >
> > -static void vfio_ccw_sch_io_todo(struct work_struct *work)
> > +void vfio_ccw_sch_io_todo(struct work_struct *work)
> > {
> > struct vfio_ccw_private *private;
> > struct irb *irb;
> > @@ -110,7 +110,7 @@ static void vfio_ccw_sch_io_todo(struct
> > work_struct *work)
> > eventfd_signal(private->io_trigger, 1);
> > }
> >
> > -static void vfio_ccw_crw_todo(struct work_struct *work)
> > +void vfio_ccw_crw_todo(struct work_struct *work)
> > {
> > struct vfio_ccw_private *private;
> >
> > @@ -154,52 +154,7 @@ static struct vfio_ccw_private
> > *vfio_ccw_alloc_private(struct subchannel *sch)
> > if (!private)
> > return ERR_PTR(-ENOMEM);
>
> Not sure we really still need vfio_ccw_alloc_private() now or whether
> you can just kzalloc() inline right in vfio_ccw_sch_probe()
Fair. It ends up ends up getting scrapped in patch 6 anyway, but that
might clean things up just a smidge more. Will give it a whirl.
> Either way:
>
> Reviewed-by: Matthew Rosato <mjrosato@linux.ibm.com>
Thanks!
>
>
> >
> > - mutex_init(&private->io_mutex);
> > - private->state = VFIO_CCW_STATE_STANDBY;
> > - INIT_LIST_HEAD(&private->crw);
> > - INIT_WORK(&private->io_work, vfio_ccw_sch_io_todo);
> > - INIT_WORK(&private->crw_work, vfio_ccw_crw_todo);
> > -
> > - private->cp.guest_cp = kcalloc(CCWCHAIN_LEN_MAX,
> > sizeof(struct ccw1),
> > - GFP_KERNEL);
> > - if (!private->cp.guest_cp)
> > - goto out_free_private;
> > -
> > - private->io_region = kmem_cache_zalloc(vfio_ccw_io_region,
> > - GFP_KERNEL |
> > GFP_DMA);
> > - if (!private->io_region)
> > - goto out_free_cp;
> > -
> > - private->cmd_region =
> > kmem_cache_zalloc(vfio_ccw_cmd_region,
> > - GFP_KERNEL |
> > GFP_DMA);
> > - if (!private->cmd_region)
> > - goto out_free_io;
> > -
> > - private->schib_region =
> > kmem_cache_zalloc(vfio_ccw_schib_region,
> > - GFP_KERNEL |
> > GFP_DMA);
> > -
> > - if (!private->schib_region)
> > - goto out_free_cmd;
> > -
> > - private->crw_region =
> > kmem_cache_zalloc(vfio_ccw_crw_region,
> > - GFP_KERNEL |
> > GFP_DMA);
> > -
> > - if (!private->crw_region)
> > - goto out_free_schib;
> > return private;
> > -
> > -out_free_schib:
> > - kmem_cache_free(vfio_ccw_schib_region, private-
> > >schib_region);
> > -out_free_cmd:
> > - kmem_cache_free(vfio_ccw_cmd_region, private->cmd_region);
> > -out_free_io:
> > - kmem_cache_free(vfio_ccw_io_region, private->io_region);
> > -out_free_cp:
> > - kfree(private->cp.guest_cp);
> > -out_free_private:
> > - mutex_destroy(&private->io_mutex);
> > - kfree(private);
> > - return ERR_PTR(-ENOMEM);
> > }
> >
> > static void vfio_ccw_free_private(struct vfio_ccw_private
> > *private)
> > diff --git a/drivers/s390/cio/vfio_ccw_ops.c
> > b/drivers/s390/cio/vfio_ccw_ops.c
> > index cf383c729d53..626b8eb3507b 100644
> > --- a/drivers/s390/cio/vfio_ccw_ops.c
> > +++ b/drivers/s390/cio/vfio_ccw_ops.c
> > @@ -50,8 +50,51 @@ static int vfio_ccw_mdev_init_dev(struct
> > vfio_device *vdev)
> > struct vfio_ccw_private *private =
> > container_of(vdev, struct vfio_ccw_private, vdev);
> >
> > + mutex_init(&private->io_mutex);
> > + private->state = VFIO_CCW_STATE_STANDBY;
> > + INIT_LIST_HEAD(&private->crw);
> > + INIT_WORK(&private->io_work, vfio_ccw_sch_io_todo);
> > + INIT_WORK(&private->crw_work, vfio_ccw_crw_todo);
> > init_completion(&private->release_comp);
> > +
> > + private->cp.guest_cp = kcalloc(CCWCHAIN_LEN_MAX,
> > sizeof(struct ccw1),
> > + GFP_KERNEL);
> > + if (!private->cp.guest_cp)
> > + goto out_free_private;
> > +
> > + private->io_region = kmem_cache_zalloc(vfio_ccw_io_region,
> > + GFP_KERNEL |
> > GFP_DMA);
> > + if (!private->io_region)
> > + goto out_free_cp;
> > +
> > + private->cmd_region =
> > kmem_cache_zalloc(vfio_ccw_cmd_region,
> > + GFP_KERNEL |
> > GFP_DMA);
> > + if (!private->cmd_region)
> > + goto out_free_io;
> > +
> > + private->schib_region =
> > kmem_cache_zalloc(vfio_ccw_schib_region,
> > + GFP_KERNEL |
> > GFP_DMA);
> > + if (!private->schib_region)
> > + goto out_free_cmd;
> > +
> > + private->crw_region =
> > kmem_cache_zalloc(vfio_ccw_crw_region,
> > + GFP_KERNEL |
> > GFP_DMA);
> > + if (!private->crw_region)
> > + goto out_free_schib;
> > +
> > return 0;
> > +
> > +out_free_schib:
> > + kmem_cache_free(vfio_ccw_schib_region, private-
> > >schib_region);
> > +out_free_cmd:
> > + kmem_cache_free(vfio_ccw_cmd_region, private->cmd_region);
> > +out_free_io:
> > + kmem_cache_free(vfio_ccw_io_region, private->io_region);
> > +out_free_cp:
> > + kfree(private->cp.guest_cp);
> > +out_free_private:
> > + mutex_destroy(&private->io_mutex);
> > + return -ENOMEM;
> > }
> >
> > static int vfio_ccw_mdev_probe(struct mdev_device *mdev)
> > diff --git a/drivers/s390/cio/vfio_ccw_private.h
> > b/drivers/s390/cio/vfio_ccw_private.h
> > index 0fdff1435230..b35940057073 100644
> > --- a/drivers/s390/cio/vfio_ccw_private.h
> > +++ b/drivers/s390/cio/vfio_ccw_private.h
> > @@ -116,6 +116,8 @@ struct vfio_ccw_private {
> > } __aligned(8);
> >
> > int vfio_ccw_sch_quiesce(struct subchannel *sch);
> > +void vfio_ccw_sch_io_todo(struct work_struct *work);
> > +void vfio_ccw_crw_todo(struct work_struct *work);
> >
> > extern struct mdev_driver vfio_ccw_mdev_driver;
> >
> > @@ -163,7 +165,10 @@ static inline void vfio_ccw_fsm_event(struct
> > vfio_ccw_private *private,
> > }
> >
> > extern struct workqueue_struct *vfio_ccw_work_q;
> > -
> > +extern struct kmem_cache *vfio_ccw_io_region;
> > +extern struct kmem_cache *vfio_ccw_cmd_region;
> > +extern struct kmem_cache *vfio_ccw_schib_region;
> > +extern struct kmem_cache *vfio_ccw_crw_region;
> >
> > /* s390 debug feature, similar to base cio */
> > extern debug_info_t *vfio_ccw_debug_msg_id;
>
@@ -24,10 +24,10 @@
#include "vfio_ccw_private.h"
struct workqueue_struct *vfio_ccw_work_q;
-static struct kmem_cache *vfio_ccw_io_region;
-static struct kmem_cache *vfio_ccw_cmd_region;
-static struct kmem_cache *vfio_ccw_schib_region;
-static struct kmem_cache *vfio_ccw_crw_region;
+struct kmem_cache *vfio_ccw_io_region;
+struct kmem_cache *vfio_ccw_cmd_region;
+struct kmem_cache *vfio_ccw_schib_region;
+struct kmem_cache *vfio_ccw_crw_region;
debug_info_t *vfio_ccw_debug_msg_id;
debug_info_t *vfio_ccw_debug_trace_id;
@@ -74,7 +74,7 @@ int vfio_ccw_sch_quiesce(struct subchannel *sch)
return ret;
}
-static void vfio_ccw_sch_io_todo(struct work_struct *work)
+void vfio_ccw_sch_io_todo(struct work_struct *work)
{
struct vfio_ccw_private *private;
struct irb *irb;
@@ -110,7 +110,7 @@ static void vfio_ccw_sch_io_todo(struct work_struct *work)
eventfd_signal(private->io_trigger, 1);
}
-static void vfio_ccw_crw_todo(struct work_struct *work)
+void vfio_ccw_crw_todo(struct work_struct *work)
{
struct vfio_ccw_private *private;
@@ -154,52 +154,7 @@ static struct vfio_ccw_private *vfio_ccw_alloc_private(struct subchannel *sch)
if (!private)
return ERR_PTR(-ENOMEM);
- mutex_init(&private->io_mutex);
- private->state = VFIO_CCW_STATE_STANDBY;
- INIT_LIST_HEAD(&private->crw);
- INIT_WORK(&private->io_work, vfio_ccw_sch_io_todo);
- INIT_WORK(&private->crw_work, vfio_ccw_crw_todo);
-
- private->cp.guest_cp = kcalloc(CCWCHAIN_LEN_MAX, sizeof(struct ccw1),
- GFP_KERNEL);
- if (!private->cp.guest_cp)
- goto out_free_private;
-
- private->io_region = kmem_cache_zalloc(vfio_ccw_io_region,
- GFP_KERNEL | GFP_DMA);
- if (!private->io_region)
- goto out_free_cp;
-
- private->cmd_region = kmem_cache_zalloc(vfio_ccw_cmd_region,
- GFP_KERNEL | GFP_DMA);
- if (!private->cmd_region)
- goto out_free_io;
-
- private->schib_region = kmem_cache_zalloc(vfio_ccw_schib_region,
- GFP_KERNEL | GFP_DMA);
-
- if (!private->schib_region)
- goto out_free_cmd;
-
- private->crw_region = kmem_cache_zalloc(vfio_ccw_crw_region,
- GFP_KERNEL | GFP_DMA);
-
- if (!private->crw_region)
- goto out_free_schib;
return private;
-
-out_free_schib:
- kmem_cache_free(vfio_ccw_schib_region, private->schib_region);
-out_free_cmd:
- kmem_cache_free(vfio_ccw_cmd_region, private->cmd_region);
-out_free_io:
- kmem_cache_free(vfio_ccw_io_region, private->io_region);
-out_free_cp:
- kfree(private->cp.guest_cp);
-out_free_private:
- mutex_destroy(&private->io_mutex);
- kfree(private);
- return ERR_PTR(-ENOMEM);
}
static void vfio_ccw_free_private(struct vfio_ccw_private *private)
@@ -50,8 +50,51 @@ static int vfio_ccw_mdev_init_dev(struct vfio_device *vdev)
struct vfio_ccw_private *private =
container_of(vdev, struct vfio_ccw_private, vdev);
+ mutex_init(&private->io_mutex);
+ private->state = VFIO_CCW_STATE_STANDBY;
+ INIT_LIST_HEAD(&private->crw);
+ INIT_WORK(&private->io_work, vfio_ccw_sch_io_todo);
+ INIT_WORK(&private->crw_work, vfio_ccw_crw_todo);
init_completion(&private->release_comp);
+
+ private->cp.guest_cp = kcalloc(CCWCHAIN_LEN_MAX, sizeof(struct ccw1),
+ GFP_KERNEL);
+ if (!private->cp.guest_cp)
+ goto out_free_private;
+
+ private->io_region = kmem_cache_zalloc(vfio_ccw_io_region,
+ GFP_KERNEL | GFP_DMA);
+ if (!private->io_region)
+ goto out_free_cp;
+
+ private->cmd_region = kmem_cache_zalloc(vfio_ccw_cmd_region,
+ GFP_KERNEL | GFP_DMA);
+ if (!private->cmd_region)
+ goto out_free_io;
+
+ private->schib_region = kmem_cache_zalloc(vfio_ccw_schib_region,
+ GFP_KERNEL | GFP_DMA);
+ if (!private->schib_region)
+ goto out_free_cmd;
+
+ private->crw_region = kmem_cache_zalloc(vfio_ccw_crw_region,
+ GFP_KERNEL | GFP_DMA);
+ if (!private->crw_region)
+ goto out_free_schib;
+
return 0;
+
+out_free_schib:
+ kmem_cache_free(vfio_ccw_schib_region, private->schib_region);
+out_free_cmd:
+ kmem_cache_free(vfio_ccw_cmd_region, private->cmd_region);
+out_free_io:
+ kmem_cache_free(vfio_ccw_io_region, private->io_region);
+out_free_cp:
+ kfree(private->cp.guest_cp);
+out_free_private:
+ mutex_destroy(&private->io_mutex);
+ return -ENOMEM;
}
static int vfio_ccw_mdev_probe(struct mdev_device *mdev)
@@ -116,6 +116,8 @@ struct vfio_ccw_private {
} __aligned(8);
int vfio_ccw_sch_quiesce(struct subchannel *sch);
+void vfio_ccw_sch_io_todo(struct work_struct *work);
+void vfio_ccw_crw_todo(struct work_struct *work);
extern struct mdev_driver vfio_ccw_mdev_driver;
@@ -163,7 +165,10 @@ static inline void vfio_ccw_fsm_event(struct vfio_ccw_private *private,
}
extern struct workqueue_struct *vfio_ccw_work_q;
-
+extern struct kmem_cache *vfio_ccw_io_region;
+extern struct kmem_cache *vfio_ccw_cmd_region;
+extern struct kmem_cache *vfio_ccw_schib_region;
+extern struct kmem_cache *vfio_ccw_crw_region;
/* s390 debug feature, similar to base cio */
extern debug_info_t *vfio_ccw_debug_msg_id;