splice: export do_tee()

export do_tee() for use in io_uring

Signed-off-by: Pavel Begunkov <asml.silence@gmail.com>
Signed-off-by: Jens Axboe <axboe@kernel.dk>

diff --git a/fs/splice.c b/fs/splice.c
index fd0a1e7..a1dd54d 100644 (file)
--- a/fs/splice.c
+++ b/fs/splice.c
@@ -1754,8 +1754,7 @@ static int link_pipe(struct pipe_inode_info *ipipe,
  * The 'flags' used are the SPLICE_F_* variants, currently the only
  * applicable one is SPLICE_F_NONBLOCK.
  */
-static long do_tee(struct file *in, struct file *out, size_t len,
-                  unsigned int flags)
+long do_tee(struct file *in, struct file *out, size_t len, unsigned int flags)
 {
        struct pipe_inode_info *ipipe = get_pipe_info(in);
        struct pipe_inode_info *opipe = get_pipe_info(out);

diff --git a/include/linux/splice.h b/include/linux/splice.h
index ebbbfea..5c47013 100644 (file)
--- a/include/linux/splice.h
+++ b/include/linux/splice.h
@@ -82,6 +82,9 @@ extern long do_splice(struct file *in, loff_t __user *off_in,
                      struct file *out, loff_t __user *off_out,
                      size_t len, unsigned int flags);
 
+extern long do_tee(struct file *in, struct file *out, size_t len,
+                  unsigned int flags);
+
 /*
  * for dynamic pipe sizing
  */