get rid of alloc_pipe_info() argument

not used anymore

Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
diff --git a/fs/pipe.c b/fs/pipe.c
index 39bdec0..6cac5ce 100644
--- a/fs/pipe.c
+++ b/fs/pipe.c
@@ -775,7 +775,7 @@
 	return retval;
 }
 
-struct pipe_inode_info * alloc_pipe_info(struct inode *inode)
+struct pipe_inode_info *alloc_pipe_info(void)
 {
 	struct pipe_inode_info *pipe;
 
@@ -841,7 +841,7 @@
 
 	inode->i_ino = get_next_ino();
 
-	pipe = alloc_pipe_info(inode);
+	pipe = alloc_pipe_info();
 	if (!pipe)
 		goto fail_iput;
 
@@ -1031,7 +1031,7 @@
 		spin_unlock(&inode->i_lock);
 	} else {
 		spin_unlock(&inode->i_lock);
-		pipe = alloc_pipe_info(inode);
+		pipe = alloc_pipe_info();
 		if (!pipe)
 			return -ENOMEM;
 		pipe->files = 1;
diff --git a/fs/splice.c b/fs/splice.c
index 9f2a4447..45e645b 100644
--- a/fs/splice.c
+++ b/fs/splice.c
@@ -1183,7 +1183,7 @@
 	 */
 	pipe = current->splice_pipe;
 	if (unlikely(!pipe)) {
-		pipe = alloc_pipe_info(NULL);
+		pipe = alloc_pipe_info();
 		if (!pipe)
 			return -ENOMEM;
 
diff --git a/include/linux/pipe_fs_i.h b/include/linux/pipe_fs_i.h
index ed8eeeb..765114f 100644
--- a/include/linux/pipe_fs_i.h
+++ b/include/linux/pipe_fs_i.h
@@ -146,7 +146,7 @@
 /* Drop the inode semaphore and wait for a pipe event, atomically */
 void pipe_wait(struct pipe_inode_info *pipe);
 
-struct pipe_inode_info * alloc_pipe_info(struct inode * inode);
+struct pipe_inode_info *alloc_pipe_info(void);
 void free_pipe_info(struct inode * inode);
 void __free_pipe_info(struct pipe_inode_info *);