1 files changed, 38 insertions, 63 deletions

diff --git a/fs/splice.c b/fs/splice.c
index 2fca6eb..badc78f 100644
--- a/fs/splice.c
+++ b/fs/splice.c
@@ -576,76 +576,51 @@ static int pipe_to_file(struct pipe_inode_info *pipe, struct pipe_buffer *buf,
 	if (this_len + offset > PAGE_CACHE_SIZE)
 		this_len = PAGE_CACHE_SIZE - offset;
 
-	/*
-	 * Reuse buf page, if SPLICE_F_MOVE is set and we are doing a full
-	 * page.
-	 */
-	if ((sd->flags & SPLICE_F_MOVE) && this_len == PAGE_CACHE_SIZE) {
+find_page:
+	page = find_lock_page(mapping, index);
+	if (!page) {
+		ret = -ENOMEM;
+		page = page_cache_alloc_cold(mapping);
+		if (unlikely(!page))
+			goto out_ret;
+
 		/*
-		 * If steal succeeds, buf->page is now pruned from the
-		 * pagecache and we can reuse it. The page will also be
-		 * locked on successful return.
+		 * This will also lock the page
 		 */
-		if (buf->ops->steal(pipe, buf))
-			goto find_page;
-
-		page = buf->page;
-		if (add_to_page_cache(page, mapping, index, GFP_KERNEL)) {
-			unlock_page(page);
-			goto find_page;
-		}
-
-		page_cache_get(page);
-
-		if (!(buf->flags & PIPE_BUF_FLAG_LRU))
-			lru_cache_add(page);
-	} else {
-find_page:
-		page = find_lock_page(mapping, index);
-		if (!page) {
-			ret = -ENOMEM;
-			page = page_cache_alloc_cold(mapping);
-			if (unlikely(!page))
-				goto out_ret;
+		ret = add_to_page_cache_lru(page, mapping, index,
+					    GFP_KERNEL);
+		if (unlikely(ret))
+			goto out;
+	}
 
-			/*
-			 * This will also lock the page
-			 */
-			ret = add_to_page_cache_lru(page, mapping, index,
-						    GFP_KERNEL);
+	/*
+	 * We get here with the page locked. If the page is also
+	 * uptodate, we don't need to do more. If it isn't, we
+	 * may need to bring it in if we are not going to overwrite
+	 * the full page.
+	 */
+	if (!PageUptodate(page)) {
+		if (this_len < PAGE_CACHE_SIZE) {
+			ret = mapping->a_ops->readpage(file, page);
 			if (unlikely(ret))
 				goto out;
-		}
 
-		/*
-		 * We get here with the page locked. If the page is also
-		 * uptodate, we don't need to do more. If it isn't, we
-		 * may need to bring it in if we are not going to overwrite
-		 * the full page.
-		 */
-		if (!PageUptodate(page)) {
-			if (this_len < PAGE_CACHE_SIZE) {
-				ret = mapping->a_ops->readpage(file, page);
-				if (unlikely(ret))
-					goto out;
-
-				lock_page(page);
-
-				if (!PageUptodate(page)) {
-					/*
-					 * Page got invalidated, repeat.
-					 */
-					if (!page->mapping) {
-						unlock_page(page);
-						page_cache_release(page);
-						goto find_page;
-					}
-					ret = -EIO;
-					goto out;
+			lock_page(page);
+
+			if (!PageUptodate(page)) {
+				/*
+				 * Page got invalidated, repeat.
+				 */
+				if (!page->mapping) {
+					unlock_page(page);
+					page_cache_release(page);
+					goto find_page;
 				}
-			} else
-				SetPageUptodate(page);
-		}
+				ret = -EIO;
+				goto out;
+			}
+		} else
+			SetPageUptodate(page);
 	}
 
 	ret = mapping->a_ops->prepare_write(file, page, offset, offset+this_len);