fs: simplify do_splice_to

No need for a local function pointer when we can trivial branch on the
->splice_read presence.

Signed-off-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
This commit is contained in:
Christoph Hellwig 2020-05-20 17:58:10 +02:00 committed by Al Viro
parent 8f3d9f3542
commit 2bc010600d

View File

@ -870,8 +870,6 @@ static long do_splice_to(struct file *in, loff_t *ppos,
struct pipe_inode_info *pipe, size_t len,
unsigned int flags)
{
ssize_t (*splice_read)(struct file *, loff_t *,
struct pipe_inode_info *, size_t, unsigned int);
int ret;
if (unlikely(!(in->f_mode & FMODE_READ)))
@ -885,11 +883,8 @@ static long do_splice_to(struct file *in, loff_t *ppos,
len = MAX_RW_COUNT;
if (in->f_op->splice_read)
splice_read = in->f_op->splice_read;
else
splice_read = default_file_splice_read;
return splice_read(in, ppos, pipe, len, flags);
return in->f_op->splice_read(in, ppos, pipe, len, flags);
return default_file_splice_read(in, ppos, pipe, len, flags);
}
/**