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vfio: Split virqfd into a separate module for vfio bus drivers

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An unintended consequence of commit 42ac9bd18d ("vfio: initialize
the virqfd workqueue in VFIO generic code") is that the vfio module
is renamed to vfio_core so that it can include both vfio and virqfd.
That's a user visible change that may break module loading scritps
and it imposes eventfd support as a dependency on the core vfio code,
which it's really not.  virqfd is intended to be provided as a service
to vfio bus drivers, so instead of wrapping it into vfio.ko, we can
make it a stand-alone module toggled by vfio bus drivers.  This has
the additional benefit of removing initialization and exit from the
core vfio code.

Signed-off-by: Alex Williamson <alex.williamson@redhat.com>
This commit is contained in:
Alex Williamson 2015-03-17 08:33:38 -06:00
parent 66fdc052d7
commit 71be3423a6
7 changed files with 25 additions and 14 deletions
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2
include/linux/vfio.h
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@ -142,8 +142,6 @@ struct virqfd {
struct virqfd **pvirqfd;
};
extern int vfio_virqfd_init(void);
extern void vfio_virqfd_exit(void);
extern int vfio_virqfd_enable(void *opaque,
int (*handler)(void *, void *),
void (*thread)(void *, void *),