From d6b29d7cee064f28ca097e906de7453541351095 Mon Sep 17 00:00:00 2001 From: Jens Axboe Date: Mon, 4 Jun 2007 09:59:47 +0200 Subject: splice: divorce the splice structure/function definitions from the pipe header We need to move even more stuff into the header so that folks can use the splice_to_pipe() implementation instead of open-coding a lot of pipe knowledge (see relay implementation), so move to our own header file finally. Signed-off-by: Jens Axboe --- include/linux/pipe_fs_i.h | 41 ----------------------------------------- 1 file changed, 41 deletions(-) (limited to 'include/linux/pipe_fs_i.h') diff --git a/include/linux/pipe_fs_i.h b/include/linux/pipe_fs_i.h index f277a9cdb50d..7ba228d52f58 100644 --- a/include/linux/pipe_fs_i.h +++ b/include/linux/pipe_fs_i.h @@ -71,45 +71,4 @@ void generic_pipe_buf_get(struct pipe_inode_info *, struct pipe_buffer *); int generic_pipe_buf_pin(struct pipe_inode_info *, struct pipe_buffer *); int generic_pipe_buf_steal(struct pipe_inode_info *, struct pipe_buffer *); -/* - * splice is tied to pipes as a transport (at least for now), so we'll just - * add the splice flags here. - */ -#define SPLICE_F_MOVE (0x01) /* move pages instead of copying */ -#define SPLICE_F_NONBLOCK (0x02) /* don't block on the pipe splicing (but */ - /* we may still block on the fd we splice */ - /* from/to, of course */ -#define SPLICE_F_MORE (0x04) /* expect more data */ -#define SPLICE_F_GIFT (0x08) /* pages passed in are a gift */ - -/* - * Passed to the actors - */ -struct splice_desc { - unsigned int len, total_len; /* current and remaining length */ - unsigned int flags; /* splice flags */ - /* - * actor() private data - */ - union { - void __user *userptr; /* memory to write to */ - struct file *file; /* file to read/write */ - void *data; /* cookie */ - } u; - loff_t pos; /* file position */ -}; - -typedef int (splice_actor)(struct pipe_inode_info *, struct pipe_buffer *, - struct splice_desc *); -typedef int (splice_direct_actor)(struct pipe_inode_info *, - struct splice_desc *); - -extern ssize_t splice_from_pipe(struct pipe_inode_info *, struct file *, - loff_t *, size_t, unsigned int, - splice_actor *); -extern ssize_t __splice_from_pipe(struct pipe_inode_info *, - struct splice_desc *, splice_actor *); -extern ssize_t splice_direct_to_actor(struct file *, struct splice_desc *, - splice_direct_actor *); - #endif -- cgit v1.2.3