On Wed, Feb 25, 2015 at 10:52:47AM +0800, Zhaolei wrote: > From: Zhao Lei <zhaolei@xxxxxxxxxxxxxx> > > space_info's value calculation is some complex and easy to cause > bug, add WARN_ON() to help debug. > > Signed-off-by: Zhao Lei <zhaolei@xxxxxxxxxxxxxx> > --- > fs/btrfs/extent-tree.c | 8 ++++++++ > 1 file changed, 8 insertions(+) > > diff --git a/fs/btrfs/extent-tree.c b/fs/btrfs/extent-tree.c > index 3e7a4af..8b51eb5 100644 > --- a/fs/btrfs/extent-tree.c > +++ b/fs/btrfs/extent-tree.c > @@ -9471,9 +9471,17 @@ int btrfs_remove_block_group(struct btrfs_trans_handle *trans, > > spin_lock(&block_group->space_info->lock); > list_del_init(&block_group->ro_list); > + > + WARN_ON(block_group->space_info->total_bytes > + < block_group->key.offset); > + WARN_ON(block_group->space_info->bytes_readonly > + < block_group->key.offset); > + WARN_ON(block_group->space_info->disk_total > + < block_group->key.offset * factor); Please put them under the ENOSPC_DEBUG mount option. > block_group->space_info->total_bytes -= block_group->key.offset; > block_group->space_info->bytes_readonly -= block_group->key.offset; > block_group->space_info->disk_total -= block_group->key.offset * factor; > + > spin_unlock(&block_group->space_info->lock); > > memcpy(&key, &block_group->key, sizeof(key)); > -- > 1.8.5.1 > > -- > To unsubscribe from this list: send the line "unsubscribe linux-btrfs" in > the body of a message to majordomo@xxxxxxxxxxxxxxx > More majordomo info at http://vger.kernel.org/majordomo-info.html -- To unsubscribe from this list: send the line "unsubscribe linux-btrfs" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
