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-rw-r--r--fs/xfs/quota/xfs_qm.c9
1 files changed, 9 insertions, 0 deletions
diff --git a/fs/xfs/quota/xfs_qm.c b/fs/xfs/quota/xfs_qm.c
index 6b13960cf31..7a2beb64314 100644
--- a/fs/xfs/quota/xfs_qm.c
+++ b/fs/xfs/quota/xfs_qm.c
@@ -1070,6 +1070,13 @@ xfs_qm_sync(
return 0;
}
+/*
+ * The hash chains and the mplist use the same xfs_dqhash structure as
+ * their list head, but we can take the mplist qh_lock and one of the
+ * hash qh_locks at the same time without any problem as they aren't
+ * related.
+ */
+static struct lock_class_key xfs_quota_mplist_class;
/*
* This initializes all the quota information that's kept in the
@@ -1105,6 +1112,8 @@ xfs_qm_init_quotainfo(
}
xfs_qm_list_init(&qinf->qi_dqlist, "mpdqlist", 0);
+ lockdep_set_class(&qinf->qi_dqlist.qh_lock, &xfs_quota_mplist_class);
+
qinf->qi_dqreclaims = 0;
/* mutex used to serialize quotaoffs */