quota: Push dqio_sem down to ->read_dqblk()
Push down acquisition of dqio_sem into ->read_dqblk() callback. It will
allow quota formats to decide whether they need it or not.
Reviewed-by: Andreas Dilger <adilger@dilger.ca>
Signed-off-by: Jan Kara <jack@suse.cz>
diff --git a/fs/quota/dquot.c b/fs/quota/dquot.c
index 8b52e85..4604652 100644
--- a/fs/quota/dquot.c
+++ b/fs/quota/dquot.c
@@ -403,11 +403,8 @@ int dquot_acquire(struct dquot *dquot)
struct quota_info *dqopt = sb_dqopt(dquot->dq_sb);
mutex_lock(&dquot->dq_lock);
- if (!test_bit(DQ_READ_B, &dquot->dq_flags)) {
- down_read(&dqopt->dqio_sem);
+ if (!test_bit(DQ_READ_B, &dquot->dq_flags))
ret = dqopt->ops[dquot->dq_id.type]->read_dqblk(dquot);
- up_read(&dqopt->dqio_sem);
- }
if (ret < 0)
goto out_iolock;
/* Make sure flags update is visible after dquot has been filled */