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Properly delete csum item in btrfs_truncate_in_trans. 

When 'item_end' is equal to 'inode->i_size',   'found_type' is updated
and current item is skipped. This behavior is correct for extent item,
but incorrect for csum item. For example, there is a csum item with
'offset == 0'. When deleting the inode,  'inode->i_size' is set to 0,
so the csum item isn't deleted.

Signed-off-by: Chris Mason <chris.mason@oracle.com>
wifi-calibration
Yan 2007-11-07 13:31:09 -05:00 committed by Chris Mason
parent 34a3821873
commit 008630c17c
1 changed files with 2 additions and 1 deletions
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3
fs/btrfs/inode.c
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@ -611,13 +611,14 @@ static int btrfs_truncate_in_trans(struct btrfs_trans_handle *trans,
item_end += btrfs_file_extent_inline_len(leaf,
item);
}
item_end--;
}
if (found_type == BTRFS_CSUM_ITEM_KEY) {
ret = btrfs_csum_truncate(trans, root, path,
inode->i_size);
BUG_ON(ret);
}
if (item_end <= inode->i_size) {
if (item_end < inode->i_size) {
if (found_type == BTRFS_DIR_ITEM_KEY) {
found_type = BTRFS_INODE_ITEM_KEY;
} else if (found_type == BTRFS_EXTENT_ITEM_KEY) {