diff mbox

[08/15] btrfs-progs: fix extent key endian bug in repair

Message ID 1376522205-16992-9-git-send-email-zab@redhat.com (mailing list archive)
State Accepted, archived
Headers show

Commit Message

Zach Brown Aug. 14, 2013, 11:16 p.m. UTC 
Extents rebuilt from backrefs can have their objectid mangled.  The code
tried to build a disk_key by hand and got the swabbing backwards.

Signed-off-by: Zach Brown <zab@redhat.com>
---
 cmds-check.c | 7 +++++--
 1 file changed, 5 insertions(+), 2 deletions(-)
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Patch

diff --git a/cmds-check.c b/cmds-check.c
index 2318aed..2d5162c 100644
--- a/cmds-check.c
+++ b/cmds-check.c
@@ -3931,9 +3931,12 @@  static int record_extent(struct btrfs_trans_handle *trans,
 			bi = (struct btrfs_tree_block_info *)(ei + 1);
 			memset_extent_buffer(leaf, 0, (unsigned long)bi,
 					     sizeof(*bi));
-			memset(&copy_key, 0, sizeof(copy_key));
 
-			copy_key.objectid = le64_to_cpu(rec->info_objectid);
+			btrfs_set_disk_key_objectid(&copy_key,
+						    rec->info_objectid);
+			btrfs_set_disk_key_type(&copy_key, 0);
+			btrfs_set_disk_key_offset(&copy_key, 0);
+
 			btrfs_set_tree_block_level(leaf, bi, rec->info_level);
 			btrfs_set_tree_block_key(leaf, bi, &copy_key);