quota: Acquire dqio_sem for reading in vfs_load_quota_inode()
[sfrench/cifs-2.6.git] / fs / quota / dquot.c
index 8d5ccad3bf3ea502e55ba759377cd391c1b87586..3852a3c79ac90291b8ae2a185636e858989d33ac 100644 (file)
@@ -2331,15 +2331,15 @@ static int vfs_load_quota_inode(struct inode *inode, int type, int format_id,
        dqopt->info[type].dqi_format = fmt;
        dqopt->info[type].dqi_fmt_id = format_id;
        INIT_LIST_HEAD(&dqopt->info[type].dqi_dirty_list);
-       down_write(&dqopt->dqio_sem);
+       down_read(&dqopt->dqio_sem);
        error = dqopt->ops[type]->read_file_info(sb, type);
        if (error < 0) {
-               up_write(&dqopt->dqio_sem);
+               up_read(&dqopt->dqio_sem);
                goto out_file_init;
        }
        if (dqopt->flags & DQUOT_QUOTA_SYS_FILE)
                dqopt->info[type].dqi_flags |= DQF_SYS_FILE;
-       up_write(&dqopt->dqio_sem);
+       up_read(&dqopt->dqio_sem);
        spin_lock(&dq_state_lock);
        dqopt->flags |= dquot_state_flag(flags, type);
        spin_unlock(&dq_state_lock);