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Diffstat (limited to 'fs/quota/quota_v2.c')
-rw-r--r--fs/quota/quota_v2.c8
1 files changed, 7 insertions, 1 deletions
diff --git a/fs/quota/quota_v2.c b/fs/quota/quota_v2.c
index 8f54b159e423..f82638e43c07 100644
--- a/fs/quota/quota_v2.c
+++ b/fs/quota/quota_v2.c
@@ -340,7 +340,13 @@ static int v2_free_file_info(struct super_block *sb, int type)
static int v2_get_next_id(struct super_block *sb, struct kqid *qid)
{
- return qtree_get_next_id(sb_dqinfo(sb, qid->type)->dqi_priv, qid);
+ struct quota_info *dqopt = sb_dqopt(sb);
+ int ret;
+
+ down_read(&dqopt->dqio_sem);
+ ret = qtree_get_next_id(sb_dqinfo(sb, qid->type)->dqi_priv, qid);
+ up_read(&dqopt->dqio_sem);
+ return ret;
}
static const struct quota_format_ops v2_format_ops = {