On 03/28/13 11:54, Wang Shilong wrote:
From: Wang Shilong wangsl-f...@cn.fujitsu.com
We use mutex_lock to protect all the user change operaions.
So when we are calling find_qgroup_rb() to check whether
qgroup exists, we don't have to hold spin_lock.
Besides, when enabling/disabling
From: Wang Shilong wangsl-f...@cn.fujitsu.com
We use mutex_lock to protect all the user change operaions.
So when we are calling find_qgroup_rb() to check whether
qgroup exists, we don't have to hold spin_lock.
Besides, when enabling/disabling quota,it must be single
thread when operations come
