Commit 3f6fae95 authored Feb 11, 2010 by Shaohua Li Committed by Chris Mason Feb 12, 2010

Btrfs: btrfs_mark_extent_written uses the wrong slot



My test do: fallocate a big file and do write. The file is 512M, but
after file write is done btrfs-debug-tree shows:
item 6 key (257 EXTENT_DATA 0) itemoff 3516 itemsize 53
                extent data disk byte 1103101952 nr 536870912
                extent data offset 0 nr 399634432 ram 536870912
                extent compression 0
Looks like a regression introducted by
6c7d54ac, where we set wrong slot.

Signed-off-by: Shaohua Li <shaohua.li@intel.com>
Acked-by: Yan Zheng <zheng.yan@oracle.com>
Signed-off-by: Chris Mason <chris.mason@oracle.com>

parent 23b5c509

fs/btrfs/file.c

+4 −2

Original line number	Diff line number	Diff line
		@@ -720,13 +720,15 @@ int btrfs_mark_extent_written(struct btrfs_trans_handle *trans,
		inode->i_ino, orig_offset);
		BUG_ON(ret);
		}
		if (del_nr == 0) {
		fi = btrfs_item_ptr(leaf, path->slots[0],
		struct btrfs_file_extent_item);
		if (del_nr == 0) {
		btrfs_set_file_extent_type(leaf, fi,
		BTRFS_FILE_EXTENT_REG);
		btrfs_mark_buffer_dirty(leaf);
		} else {
		fi = btrfs_item_ptr(leaf, del_slot - 1,
		struct btrfs_file_extent_item);
		btrfs_set_file_extent_type(leaf, fi,
		BTRFS_FILE_EXTENT_REG);
		btrfs_set_file_extent_num_bytes(leaf, fi,