ocfs2/dlm: Trace insert/remove of resource to/from hash (e9f0b6a6) · Commits · 戴 / test

fs/ocfs2/dlm/dlmcommon.h

+2 −3

Original line number	Diff line number	Diff line
		@@ -877,9 +877,8 @@ static inline void dlm_lockres_get(struct dlm_lock_resource *res)
		kref_get(&res->refs);
		}
		void dlm_lockres_put(struct dlm_lock_resource *res);
		void __dlm_unhash_lockres(struct dlm_lock_resource *res);
		void __dlm_insert_lockres(struct dlm_ctxt *dlm,
		struct dlm_lock_resource *res);
		void __dlm_unhash_lockres(struct dlm_ctxt dlm, struct dlm_lock_resource res);
		void __dlm_insert_lockres(struct dlm_ctxt dlm, struct dlm_lock_resource res);
		struct dlm_lock_resource * __dlm_lookup_lockres_full(struct dlm_ctxt *dlm,
		const char *name,
		unsigned int len,

+12 −7

Original line number	Diff line number	Diff line
		@@ -157,16 +157,18 @@ static int dlm_protocol_compare(struct dlm_protocol_version *existing,

		static void dlm_unregister_domain_handlers(struct dlm_ctxt *dlm);

		void __dlm_unhash_lockres(struct dlm_lock_resource *lockres)
		void __dlm_unhash_lockres(struct dlm_ctxt dlm, struct dlm_lock_resource res)
		{
		if (!hlist_unhashed(&lockres->hash_node)) {
		hlist_del_init(&lockres->hash_node);
		dlm_lockres_put(lockres);
		}
		if (hlist_unhashed(&res->hash_node))
		return;

		mlog(0, "%s: Unhash res %.*s\n", dlm->name, res->lockname.len,
		res->lockname.name);
		hlist_del_init(&res->hash_node);
		dlm_lockres_put(res);
		}

		void __dlm_insert_lockres(struct dlm_ctxt *dlm,
		struct dlm_lock_resource *res)
		void __dlm_insert_lockres(struct dlm_ctxt dlm, struct dlm_lock_resource res)
		{
		struct hlist_head *bucket;
		struct qstr *q;
		@@ -180,6 +182,9 @@ void __dlm_insert_lockres(struct dlm_ctxt *dlm,
		dlm_lockres_get(res);

		hlist_add_head(&res->hash_node, bucket);

		mlog(0, "%s: Hash res %.*s\n", dlm->name, res->lockname.len,
		res->lockname.name);
		}

		struct dlm_lock_resource * __dlm_lookup_lockres_full(struct dlm_ctxt *dlm,

+1 −1

Original line number	Diff line number	Diff line
		@@ -207,7 +207,7 @@ static void dlm_purge_lockres(struct dlm_ctxt *dlm,
		BUG();
		}

		__dlm_unhash_lockres(res);
		__dlm_unhash_lockres(dlm, res);

		/* lockres is not in the hash now. drop the flag and wake up
		* any processes waiting in dlm_get_lock_resource. */