tree 3d2c52d2424e01df54e3ac6bd060028d293235b1
parent 14524a846eb52c18438e9bd5eb8cf1431fd57b44
author Qu Wenruo <quwenruo@cn.fujitsu.com> 1444299577 +0800
committer Chris Mason <clm@fb.com> 1445478069 -0700

btrfs: qgroup: Avoid calling btrfs_free_reserved_data_space in clear_bit_hook

In clear_bit_hook, qgroup reserved data is already handled quite well,
either released by finish_ordered_io or invalidatepage.

So calling btrfs_qgroup_free_data() here is completely meaningless, and
since btrfs_qgroup_free_data() will lock io_tree, so it can't be called
with io_tree lock hold.

This patch will add a new function
btrfs_free_reserved_data_space_noquota() for clear_bit_hook() to cease
the lockdep warning.

Signed-off-by: Qu Wenruo <quwenruo@cn.fujitsu.com>
Signed-off-by: Chris Mason <clm@fb.com>