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| author | Uwe Kleine-König <u.kleine-koenig@pengutronix.de> | 2013-08-07 15:02:54 +0400 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2013-08-13 02:46:51 +0400 |
| commit | b65c4014efbcfa37df91c00dfaea4b3f17ac4eb7 (patch) | |
| tree | fca0b4228be45e7d10fdca7bb551409cf635efb7 | |
| parent | 7294151d0592e0ff48c61fca9fd7c93d613134da (diff) | |
| download | linux-b65c4014efbcfa37df91c00dfaea4b3f17ac4eb7.tar.xz | |
uio: drop unused vma_count member in uio_device struct
vma_count is used write-only and so fails to be useful. So remove it.
Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
| -rw-r--r-- | drivers/uio/uio.c | 16 |
1 files changed, 0 insertions, 16 deletions
diff --git a/drivers/uio/uio.c b/drivers/uio/uio.c index c4279b2234ac..8abe78c0b16f 100644 --- a/drivers/uio/uio.c +++ b/drivers/uio/uio.c @@ -35,7 +35,6 @@ struct uio_device { atomic_t event; struct fasync_struct *async_queue; wait_queue_head_t wait; - int vma_count; struct uio_info *info; struct kobject *map_dir; struct kobject *portio_dir; @@ -593,18 +592,6 @@ static int uio_find_mem_index(struct vm_area_struct *vma) return -1; } -static void uio_vma_open(struct vm_area_struct *vma) -{ - struct uio_device *idev = vma->vm_private_data; - idev->vma_count++; -} - -static void uio_vma_close(struct vm_area_struct *vma) -{ - struct uio_device *idev = vma->vm_private_data; - idev->vma_count--; -} - static int uio_vma_fault(struct vm_area_struct *vma, struct vm_fault *vmf) { struct uio_device *idev = vma->vm_private_data; @@ -631,8 +618,6 @@ static int uio_vma_fault(struct vm_area_struct *vma, struct vm_fault *vmf) } static const struct vm_operations_struct uio_logical_vm_ops = { - .open = uio_vma_open, - .close = uio_vma_close, .fault = uio_vma_fault, }; @@ -640,7 +625,6 @@ static int uio_mmap_logical(struct vm_area_struct *vma) { vma->vm_flags |= VM_DONTEXPAND | VM_DONTDUMP; vma->vm_ops = &uio_logical_vm_ops; - uio_vma_open(vma); return 0; } |