[PATCH 1/2] splice: export do_tee()

Pavel Begunkov
2020-05-02T12:10:41Z

export do_tee() for use in io_uring

Signed-off-by: Pavel Begunkov <asml.silence@gmail.com>
---
fs/splice.c | 3 +--
include/linux/splice.h | 3 +++
2 files changed, 4 insertions(+), 2 deletions(-)

diff --git a/fs/splice.c b/fs/splice.c
index 4735defc46ee..000be62c5146 100644
--- a/fs/splice.c
+++ b/fs/splice.c
@@ -1763,8 +1763,7 @@ 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 ebbbfea48aa0..5c47013f708e 100644
--- 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
*/
--
2.24.0