diff options
| author | Andy Grover <agrover@redhat.com> | 2014-10-02 03:07:03 +0400 |
|---|---|---|
| committer | Nicholas Bellinger <nab@linux-iscsi.org> | 2014-10-03 08:35:54 +0400 |
| commit | f14bb039a4e8206439d3e9abd92bc76bd142f243 (patch) | |
| tree | 9b97b8aae139d6d26ecdbed0951959bd75c0ad7c | |
| parent | 20959c4b4078847e629eed8918abb52bfe5f559a (diff) | |
| download | linux-f14bb039a4e8206439d3e9abd92bc76bd142f243.tar.xz | |
uio: Export definition of struct uio_device
In order to prevent a O(n) search of the filesystem to link up its uio
node with its target configuration, TCMU needs to know the minor number
that UIO assigned. Expose the definition of this struct so TCMU can
access this field.
Signed-off-by: Andy Grover <agrover@redhat.com>
Signed-off-by: Nicholas Bellinger <nab@linux-iscsi.org>
| -rw-r--r-- | drivers/uio/uio.c | 12 | ||||
| -rw-r--r-- | include/linux/uio_driver.h | 12 |
2 files changed, 11 insertions, 13 deletions
diff --git a/drivers/uio/uio.c b/drivers/uio/uio.c index a673e5b6a2e0..60fa6278fbce 100644 --- a/drivers/uio/uio.c +++ b/drivers/uio/uio.c @@ -28,18 +28,6 @@ #define UIO_MAX_DEVICES (1U << MINORBITS) -struct uio_device { - struct module *owner; - struct device *dev; - int minor; - atomic_t event; - struct fasync_struct *async_queue; - wait_queue_head_t wait; - struct uio_info *info; - struct kobject *map_dir; - struct kobject *portio_dir; -}; - static int uio_major; static struct cdev *uio_cdev; static DEFINE_IDR(uio_idr); diff --git a/include/linux/uio_driver.h b/include/linux/uio_driver.h index 1ad4724458de..baa81718d985 100644 --- a/include/linux/uio_driver.h +++ b/include/linux/uio_driver.h @@ -63,7 +63,17 @@ struct uio_port { #define MAX_UIO_PORT_REGIONS 5 -struct uio_device; +struct uio_device { + struct module *owner; + struct device *dev; + int minor; + atomic_t event; + struct fasync_struct *async_queue; + wait_queue_head_t wait; + struct uio_info *info; + struct kobject *map_dir; + struct kobject *portio_dir; +}; /** * struct uio_info - UIO device capabilities |