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authorAl Viro <viro@zeniv.linux.org.uk>2014-02-03 06:09:54 +0400
committerAl Viro <viro@zeniv.linux.org.uk>2014-04-02 07:19:19 +0400
commitfbb32750a62df75d1ffea547f3908b21c5496d9f (patch)
tree3e02ab4b6c6a77973ca10bcd6a54c57d17fc9f89 /include/linux/pipe_fs_i.h
parent58bda1da4b3c3ec6da8d0badaba12ce02839a241 (diff)
downloadlinux-fbb32750a62df75d1ffea547f3908b21c5496d9f.tar.xz
pipe: kill ->map() and ->unmap()
all pipe_buffer_operations have the same instances of those... Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
Diffstat (limited to 'include/linux/pipe_fs_i.h')
-rw-r--r--include/linux/pipe_fs_i.h19
1 files changed, 0 insertions, 19 deletions
diff --git a/include/linux/pipe_fs_i.h b/include/linux/pipe_fs_i.h
index ab5752692113..6dffcebe6105 100644
--- a/include/linux/pipe_fs_i.h
+++ b/include/linux/pipe_fs_i.h
@@ -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 *);