From b8d9e7f2411b0744df2ec33e80d7698180fef21a Mon Sep 17 00:00:00 2001 From: Christoph Hellwig Date: Wed, 20 May 2020 17:58:15 +0200 Subject: fs: make the pipe_buf_operations ->confirm operation optional Just return 0 for success if it is not present. Signed-off-by: Christoph Hellwig Signed-off-by: Al Viro --- fs/pipe.c | 17 ----------------- 1 file changed, 17 deletions(-) (limited to 'fs/pipe.c') diff --git a/fs/pipe.c b/fs/pipe.c index 8e52b78b4042..58890897402a 100644 --- a/fs/pipe.c +++ b/fs/pipe.c @@ -200,22 +200,6 @@ bool generic_pipe_buf_get(struct pipe_inode_info *pipe, struct pipe_buffer *buf) } EXPORT_SYMBOL(generic_pipe_buf_get); -/** - * generic_pipe_buf_confirm - verify contents of the pipe buffer - * @info: the pipe that the buffer belongs to - * @buf: the buffer to confirm - * - * Description: - * This function does nothing, because the generic pipe code uses - * pages that are always good when inserted into the pipe. - */ -int generic_pipe_buf_confirm(struct pipe_inode_info *info, - struct pipe_buffer *buf) -{ - return 0; -} -EXPORT_SYMBOL(generic_pipe_buf_confirm); - /** * generic_pipe_buf_release - put a reference to a &struct pipe_buffer * @pipe: the pipe that the buffer belongs to @@ -232,7 +216,6 @@ void generic_pipe_buf_release(struct pipe_inode_info *pipe, EXPORT_SYMBOL(generic_pipe_buf_release); static const struct pipe_buf_operations anon_pipe_buf_ops = { - .confirm = generic_pipe_buf_confirm, .release = anon_pipe_buf_release, .steal = anon_pipe_buf_steal, .get = generic_pipe_buf_get, -- cgit v1.2.3