diff options
Diffstat (limited to 'kernel/relay.c')
| -rw-r--r-- | kernel/relay.c | 34 |
1 files changed, 0 insertions, 34 deletions
diff --git a/kernel/relay.c b/kernel/relay.c index b08d936d5fa7..b51343642bf4 100644 --- a/kernel/relay.c +++ b/kernel/relay.c @@ -28,15 +28,6 @@ static DEFINE_MUTEX(relay_channels_mutex); static LIST_HEAD(relay_channels); /* - * close() vm_op implementation for relay file mapping. - */ -static void relay_file_mmap_close(struct vm_area_struct *vma) -{ - struct rchan_buf *buf = vma->vm_private_data; - buf->chan->cb->buf_unmapped(buf, vma->vm_file); -} - -/* * fault() vm_op implementation for relay file mapping. */ static vm_fault_t relay_buf_fault(struct vm_fault *vmf) @@ -62,7 +53,6 @@ static vm_fault_t relay_buf_fault(struct vm_fault *vmf) */ static const struct vm_operations_struct relay_file_mmap_ops = { .fault = relay_buf_fault, - .close = relay_file_mmap_close, }; /* @@ -96,7 +86,6 @@ static void relay_free_page_array(struct page **array) static int relay_mmap_buf(struct rchan_buf *buf, struct vm_area_struct *vma) { unsigned long length = vma->vm_end - vma->vm_start; - struct file *filp = vma->vm_file; if (!buf) return -EBADF; @@ -107,7 +96,6 @@ static int relay_mmap_buf(struct rchan_buf *buf, struct vm_area_struct *vma) vma->vm_ops = &relay_file_mmap_ops; vma->vm_flags |= VM_DONTEXPAND; vma->vm_private_data = buf; - buf->chan->cb->buf_mapped(buf, filp); return 0; } @@ -284,22 +272,6 @@ static int subbuf_start_default_callback (struct rchan_buf *buf, } /* - * buf_mapped() default callback. Does nothing. - */ -static void buf_mapped_default_callback(struct rchan_buf *buf, - struct file *filp) -{ -} - -/* - * buf_unmapped() default callback. Does nothing. - */ -static void buf_unmapped_default_callback(struct rchan_buf *buf, - struct file *filp) -{ -} - -/* * create_buf_file_create() default callback. Does nothing. */ static struct dentry *create_buf_file_default_callback(const char *filename, @@ -322,8 +294,6 @@ static int remove_buf_file_default_callback(struct dentry *dentry) /* relay channel default callbacks */ static struct rchan_callbacks default_channel_callbacks = { .subbuf_start = subbuf_start_default_callback, - .buf_mapped = buf_mapped_default_callback, - .buf_unmapped = buf_unmapped_default_callback, .create_buf_file = create_buf_file_default_callback, .remove_buf_file = remove_buf_file_default_callback, }; @@ -509,10 +479,6 @@ static void setup_callbacks(struct rchan *chan, if (!cb->subbuf_start) cb->subbuf_start = subbuf_start_default_callback; - if (!cb->buf_mapped) - cb->buf_mapped = buf_mapped_default_callback; - if (!cb->buf_unmapped) - cb->buf_unmapped = buf_unmapped_default_callback; if (!cb->create_buf_file) cb->create_buf_file = create_buf_file_default_callback; if (!cb->remove_buf_file) |