From: Pavel Begunkov <asml.silence@gmail.com> mainline inclusion from mainline-5.8-rc1 commit 9dafdfc2f0a3ae551711098de3d7b621a469f11a category: feature bugzilla: https://bugzilla.openeuler.org/show_bug.cgi?id=27 CVE: NA --------------------------- 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> Signed-off-by: yangerkun <yangerkun@huawei.com> Reviewed-by: zhangyi (F) <yi.zhang@huawei.com> Signed-off-by: Cheng Jian <cj.chengjian@huawei.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 f8aa86070b22..230367f3df41 100644 --- a/fs/splice.c +++ b/fs/splice.c @@ -1717,8 +1717,7 @@ 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 */ -- 2.25.1