commit 8436ea91a1c4fd8ed57ff0c0ca482ee3dbe744c7
author Josef Bacik <jbacik@fb.com> Fri Sep 02 15:40:03 2016 -0400
committer David Sterba <dsterba@suse.com> Mon Sep 26 17:59:49 2016 +0200
tree 3f28586a9624aad931afc0a9bee8d3a739fd38ae
parent afcdd129e05a9210a5d19d4aa6e0afa475fc49e2

Btrfs: kill the start argument to read_extent_buffer_pages

Nobody uses this, it makes no sense to do partial reads of extent buffers.

Signed-off-by: Josef Bacik <jbacik@fb.com>
Signed-off-by: David Sterba <dsterba@suse.com>

fs/btrfs/disk-io.c

diff --git a/fs/btrfs/disk-io.c b/fs/btrfs/disk-io.c
index f92bfa8..e4c2428 100644
--- a/fs/btrfs/disk-io.c
+++ b/fs/btrfs/disk-io.c
@@ -442,7 +442,7 @@
  */
 static int btree_read_extent_buffer_pages(struct btrfs_root *root,
 					  struct extent_buffer *eb,
-					  u64 start, u64 parent_transid)
+					  u64 parent_transid)
 {
 	struct extent_io_tree *io_tree;
 	int failed = 0;
@@ -454,8 +454,7 @@
 	clear_bit(EXTENT_BUFFER_CORRUPT, &eb->bflags);
 	io_tree = &BTRFS_I(root->fs_info->btree_inode)->io_tree;
 	while (1) {
-		ret = read_extent_buffer_pages(io_tree, eb, start,
-					       WAIT_COMPLETE,
+		ret = read_extent_buffer_pages(io_tree, eb, WAIT_COMPLETE,
 					       btree_get_extent, mirror_num);
 		if (!ret) {
 			if (!verify_parent_transid(io_tree, eb,
@@ -1132,7 +1131,7 @@
 	if (IS_ERR(buf))
 		return;
 	read_extent_buffer_pages(&BTRFS_I(btree_inode)->io_tree,
-				 buf, 0, WAIT_NONE, btree_get_extent, 0);
+				 buf, WAIT_NONE, btree_get_extent, 0);
 	free_extent_buffer(buf);
 }
 
@@ -1150,7 +1149,7 @@
 
 	set_bit(EXTENT_BUFFER_READAHEAD, &buf->bflags);
 
-	ret = read_extent_buffer_pages(io_tree, buf, 0, WAIT_PAGE_LOCK,
+	ret = read_extent_buffer_pages(io_tree, buf, WAIT_PAGE_LOCK,
 				       btree_get_extent, mirror_num);
 	if (ret) {
 		free_extent_buffer(buf);
@@ -1206,7 +1205,7 @@
 	if (IS_ERR(buf))
 		return buf;
 
-	ret = btree_read_extent_buffer_pages(root, buf, 0, parent_transid);
+	ret = btree_read_extent_buffer_pages(root, buf, parent_transid);
 	if (ret) {
 		free_extent_buffer(buf);
 		return ERR_PTR(ret);
@@ -4081,7 +4080,7 @@
 int btrfs_read_buffer(struct extent_buffer *buf, u64 parent_transid)
 {
 	struct btrfs_root *root = BTRFS_I(buf->pages[0]->mapping->host)->root;
-	return btree_read_extent_buffer_pages(root, buf, 0, parent_transid);
+	return btree_read_extent_buffer_pages(root, buf, parent_transid);
 }
 
 static int btrfs_check_super_valid(struct btrfs_fs_info *fs_info,