diff options
| author | Shaohua Li <shaohua.li@intel.com> | 2010-02-11 07:43:00 +0000 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@suse.de> | 2010-08-13 13:20:12 -0700 |
| commit | f827e15f9ff7f653a3fff45487faf1460edd7705 (patch) | |
| tree | 189ee93759ddc5d7832e30dc83698ee8aedc3a7a | |
| parent | b5763c0f3bb1ca5ca64d2b72d07e8b42ab624ab0 (diff) | |
Btrfs: btrfs_mark_extent_written uses the wrong slot
commit 3f6fae9559225741c91f1320090b285da1413290 upstream.
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
6c7d54ac87f338c479d9729e8392eca3f76e11e1, 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>
Acked-by: Jeff Mahoney <jeffm@suse.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
| -rw-r--r-- | fs/btrfs/file.c | 6 |
1 files changed, 4 insertions, 2 deletions
diff --git a/fs/btrfs/file.c b/fs/btrfs/file.c index 413a30dafcda..a7fd9f3a750a 100644 --- a/fs/btrfs/file.c +++ b/fs/btrfs/file.c @@ -720,13 +720,15 @@ again: inode->i_ino, orig_offset); BUG_ON(ret); } - fi = btrfs_item_ptr(leaf, path->slots[0], - struct btrfs_file_extent_item); if (del_nr == 0) { + fi = btrfs_item_ptr(leaf, path->slots[0], + struct btrfs_file_extent_item); 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, |