| commit | 62676838cb39f4e4f44dd697c4d5d4214bda8cb1 | [log] [tgz] |
|---|---|---|
| author | Jan Kara <jack@suse.cz> | Thu Jun 08 15:00:20 2017 +0200 |
| committer | Jan Kara <jack@suse.cz> | Thu Aug 17 18:56:07 2017 +0200 |
| tree | 79460ae1e1a4703ab739915d6e821661d9493780 | |
| parent | bc8230ee8e2ba967af780cdaf2dcc0f8e5eb45ca [diff] |
quota: Do more fine-grained locking in dquot_acquire() We need dqio_sem held just for reading when calling ->read_dqblk() in dquot_acquire(). Also dqio_sem is not needed when setting DQ_READ_B and DQ_ACTIVE_B as concurrent reads and dquot activations are serialized by dq_lock. So acquire and release dqio_sem closer to the place where it is needed. This reduces lock hold time and will make locking changes easier. Signed-off-by: Jan Kara <jack@suse.cz>