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-rw-r--r--fs/quota/quota_v2.c4
1 files changed, 4 insertions, 0 deletions
diff --git a/fs/quota/quota_v2.c b/fs/quota/quota_v2.c
index c0187cda2c1e..a73e5b34db41 100644
--- a/fs/quota/quota_v2.c
+++ b/fs/quota/quota_v2.c
@@ -328,12 +328,16 @@ static int v2_write_dquot(struct dquot *dquot)
if (!dquot->dq_off) {
alloc = true;
down_write(&dqopt->dqio_sem);
+ } else {
+ down_read(&dqopt->dqio_sem);
}
ret = qtree_write_dquot(
sb_dqinfo(dquot->dq_sb, dquot->dq_id.type)->dqi_priv,
dquot);
if (alloc)
up_write(&dqopt->dqio_sem);
+ else
+ up_read(&dqopt->dqio_sem);
return ret;
}