diff --git a/fs/fuse/dev.c b/fs/fuse/dev.c
index a94d2ed..eaf56c6 100644
--- a/fs/fuse/dev.c
+++ b/fs/fuse/dev.c
@@ -1364,7 +1364,6 @@
 		goto out;
 
 	ret = 0;
-	pipe_lock(pipe);
 
 	if (!pipe->readers) {
 		send_sig(SIGPIPE, current, 0);
@@ -1400,7 +1399,6 @@
 	}
 
 out_unlock:
-	pipe_unlock(pipe);
 
 	if (do_wakeup) {
 		smp_mb();
diff --git a/fs/splice.c b/fs/splice.c
index 31c52e0..2ca7e69 100644
--- a/fs/splice.c
+++ b/fs/splice.c
@@ -183,79 +183,41 @@
 		       struct splice_pipe_desc *spd)
 {
 	unsigned int spd_pages = spd->nr_pages;
-	int ret, do_wakeup, page_nr;
+	int ret = 0, page_nr = 0;
 
 	if (!spd_pages)
 		return 0;
 
-	ret = 0;
-	do_wakeup = 0;
-	page_nr = 0;
-
-	pipe_lock(pipe);
-
-	for (;;) {
-		if (!pipe->readers) {
-			send_sig(SIGPIPE, current, 0);
-			if (!ret)
-				ret = -EPIPE;
-			break;
-		}
-
-		if (pipe->nrbufs < pipe->buffers) {
-			int newbuf = (pipe->curbuf + pipe->nrbufs) & (pipe->buffers - 1);
-			struct pipe_buffer *buf = pipe->bufs + newbuf;
-
-			buf->page = spd->pages[page_nr];
-			buf->offset = spd->partial[page_nr].offset;
-			buf->len = spd->partial[page_nr].len;
-			buf->private = spd->partial[page_nr].private;
-			buf->ops = spd->ops;
-			if (spd->flags & SPLICE_F_GIFT)
-				buf->flags |= PIPE_BUF_FLAG_GIFT;
-
-			pipe->nrbufs++;
-			page_nr++;
-			ret += buf->len;
-
-			if (pipe->files)
-				do_wakeup = 1;
-
-			if (!--spd->nr_pages)
-				break;
-			if (pipe->nrbufs < pipe->buffers)
-				continue;
-
-			break;
-		}
-
-		if (spd->flags & SPLICE_F_NONBLOCK) {
-			if (!ret)
-				ret = -EAGAIN;
-			break;
-		}
-
-		if (signal_pending(current)) {
-			if (!ret)
-				ret = -ERESTARTSYS;
-			break;
-		}
-
-		if (do_wakeup) {
-			wakeup_pipe_readers(pipe);
-			do_wakeup = 0;
-		}
-
-		pipe->waiting_writers++;
-		pipe_wait(pipe);
-		pipe->waiting_writers--;
+	if (unlikely(!pipe->readers)) {
+		send_sig(SIGPIPE, current, 0);
+		ret = -EPIPE;
+		goto out;
 	}
 
-	pipe_unlock(pipe);
+	while (pipe->nrbufs < pipe->buffers) {
+		int newbuf = (pipe->curbuf + pipe->nrbufs) & (pipe->buffers - 1);
+		struct pipe_buffer *buf = pipe->bufs + newbuf;
 
-	if (do_wakeup)
-		wakeup_pipe_readers(pipe);
+		buf->page = spd->pages[page_nr];
+		buf->offset = spd->partial[page_nr].offset;
+		buf->len = spd->partial[page_nr].len;
+		buf->private = spd->partial[page_nr].private;
+		buf->ops = spd->ops;
+		if (spd->flags & SPLICE_F_GIFT)
+			buf->flags |= PIPE_BUF_FLAG_GIFT;
 
+		pipe->nrbufs++;
+		page_nr++;
+		ret += buf->len;
+
+		if (!--spd->nr_pages)
+			break;
+	}
+
+	if (!ret)
+		ret = -EAGAIN;
+
+out:
 	while (page_nr < spd_pages)
 		spd->spd_release(spd, page_nr++);
 
@@ -1339,6 +1301,20 @@
 }
 EXPORT_SYMBOL(do_splice_direct);
 
+static int wait_for_space(struct pipe_inode_info *pipe, unsigned flags)
+{
+	while (pipe->nrbufs == pipe->buffers) {
+		if (flags & SPLICE_F_NONBLOCK)
+			return -EAGAIN;
+		if (signal_pending(current))
+			return -ERESTARTSYS;
+		pipe->waiting_writers++;
+		pipe_wait(pipe);
+		pipe->waiting_writers--;
+	}
+	return 0;
+}
+
 static int splice_pipe_to_pipe(struct pipe_inode_info *ipipe,
 			       struct pipe_inode_info *opipe,
 			       size_t len, unsigned int flags);
@@ -1421,8 +1397,13 @@
 			offset = in->f_pos;
 		}
 
-		ret = do_splice_to(in, &offset, opipe, len, flags);
-
+		pipe_lock(opipe);
+		ret = wait_for_space(opipe, flags);
+		if (!ret)
+			ret = do_splice_to(in, &offset, opipe, len, flags);
+		pipe_unlock(opipe);
+		if (ret > 0)
+			wakeup_pipe_readers(opipe);
 		if (!off_in)
 			in->f_pos = offset;
 		else if (copy_to_user(off_in, &offset, sizeof(loff_t)))
@@ -1546,14 +1527,20 @@
 		return -ENOMEM;
 	}
 
-	spd.nr_pages = get_iovec_page_array(&from, spd.pages,
-					    spd.partial,
-					    spd.nr_pages_max);
-	if (spd.nr_pages <= 0)
-		ret = spd.nr_pages;
-	else
-		ret = splice_to_pipe(pipe, &spd);
-
+	pipe_lock(pipe);
+	ret = wait_for_space(pipe, flags);
+	if (!ret) {
+		spd.nr_pages = get_iovec_page_array(&from, spd.pages,
+						    spd.partial,
+						    spd.nr_pages_max);
+		if (spd.nr_pages <= 0)
+			ret = spd.nr_pages;
+		else
+			ret = splice_to_pipe(pipe, &spd);
+	}
+	pipe_unlock(pipe);
+	if (ret > 0)
+		wakeup_pipe_readers(pipe);
 	splice_shrink_spd(&spd);
 	kfree(iov);
 	return ret;