diff options
Diffstat (limited to 'include/linux/pipe_fs_i.h')
| -rw-r--r-- | include/linux/pipe_fs_i.h | 21 |
1 files changed, 1 insertions, 20 deletions
diff --git a/include/linux/pipe_fs_i.h b/include/linux/pipe_fs_i.h index ab5752692113..eb8b8ac6df3c 100644 --- a/include/linux/pipe_fs_i.h +++ b/include/linux/pipe_fs_i.h @@ -35,7 +35,7 @@ struct pipe_buffer { * @tmp_page: cached released page * @readers: number of current readers of this pipe * @writers: number of current writers of this pipe - * @files: number of struct file refering this pipe (protected by ->i_lock) + * @files: number of struct file referring this pipe (protected by ->i_lock) * @waiting_writers: number of writers blocked waiting for room * @r_counter: reader counter * @w_counter: writer counter @@ -83,23 +83,6 @@ struct pipe_buf_operations { int can_merge; /* - * ->map() returns a virtual address mapping of the pipe buffer. - * The last integer flag reflects whether this should be an atomic - * mapping or not. The atomic map is faster, however you can't take - * page faults before calling ->unmap() again. So if you need to eg - * access user data through copy_to/from_user(), then you must get - * a non-atomic map. ->map() uses the kmap_atomic slot for - * atomic maps, you have to be careful if mapping another page as - * source or destination for a copy. - */ - void * (*map)(struct pipe_inode_info *, struct pipe_buffer *, int); - - /* - * Undoes ->map(), finishes the virtual mapping of the pipe buffer. - */ - void (*unmap)(struct pipe_inode_info *, struct pipe_buffer *, void *); - - /* * ->confirm() verifies that the data in the pipe buffer is there * and that the contents are good. If the pages in the pipe belong * to a file system, we may need to wait for IO completion in this @@ -150,8 +133,6 @@ struct pipe_inode_info *alloc_pipe_info(void); void free_pipe_info(struct pipe_inode_info *); /* Generic pipe buffer ops functions */ -void *generic_pipe_buf_map(struct pipe_inode_info *, struct pipe_buffer *, int); -void generic_pipe_buf_unmap(struct pipe_inode_info *, struct pipe_buffer *, void *); void generic_pipe_buf_get(struct pipe_inode_info *, struct pipe_buffer *); int generic_pipe_buf_confirm(struct pipe_inode_info *, struct pipe_buffer *); int generic_pipe_buf_steal(struct pipe_inode_info *, struct pipe_buffer *); |