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Diffstat (limited to 'fs/xfs/quota/xfs_dquot.h')
-rw-r--r--fs/xfs/quota/xfs_dquot.h10
1 files changed, 10 insertions, 0 deletions
diff --git a/fs/xfs/quota/xfs_dquot.h b/fs/xfs/quota/xfs_dquot.h
index 7e455337e2ba..d443e93b4331 100644
--- a/fs/xfs/quota/xfs_dquot.h
+++ b/fs/xfs/quota/xfs_dquot.h
@@ -97,6 +97,16 @@ typedef struct xfs_dquot {
#define dq_hashlist q_lists.dqm_hashlist
#define dq_flags q_lists.dqm_flags
+/*
+ * Lock hierachy for q_qlock:
+ * XFS_QLOCK_NORMAL is the implicit default,
+ * XFS_QLOCK_NESTED is the dquot with the higher id in xfs_dqlock2
+ */
+enum {
+ XFS_QLOCK_NORMAL = 0,
+ XFS_QLOCK_NESTED,
+};
+
#define XFS_DQHOLD(dqp) ((dqp)->q_nrefs++)
#ifdef DEBUG
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