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Commit e9f0b6a6 authored by Sunil Mushran's avatar Sunil Mushran
Browse files

ocfs2/dlm: Trace insert/remove of resource to/from hash 



Add mlog to trace adding and removing the resource from/to the hash table.

Signed-off-by: default avatarSunil Mushran <sunil.mushran@oracle.com>
parent 8d400b81

fs/ocfs2/dlm/dlmcommon.h

+2 −3
Original line number Original line Diff line number Diff line
@@ -877,9 +877,8 @@ static inline void dlm_lockres_get(struct dlm_lock_resource *res) 
	kref_get(&res->refs);

	kref_get(&res->refs);

}

}

void dlm_lockres_put(struct dlm_lock_resource *res);

void dlm_lockres_put(struct dlm_lock_resource *res);

void __dlm_unhash_lockres(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,

void __dlm_insert_lockres(struct dlm_ctxt *dlm, struct dlm_lock_resource *res);

			  struct dlm_lock_resource *res);

struct dlm_lock_resource * __dlm_lookup_lockres_full(struct dlm_ctxt *dlm,

struct dlm_lock_resource * __dlm_lookup_lockres_full(struct dlm_ctxt *dlm,

						     const char *name,

						     const char *name,

						     unsigned int len,

						     unsigned int len,

fs/ocfs2/dlm/dlmdomain.c

+12 −7
Original line number Original line 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);

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)) {

	if (hlist_unhashed(&res->hash_node))

		hlist_del_init(&lockres->hash_node);

		return;

		dlm_lockres_put(lockres);



	}

	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,

void __dlm_insert_lockres(struct dlm_ctxt *dlm, struct dlm_lock_resource *res)

		       struct dlm_lock_resource *res)

{

{

	struct hlist_head *bucket;

	struct hlist_head *bucket;

	struct qstr *q;

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

	dlm_lockres_get(res);





	hlist_add_head(&res->hash_node, bucket);

	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,

struct dlm_lock_resource * __dlm_lookup_lockres_full(struct dlm_ctxt *dlm,

fs/ocfs2/dlm/dlmthread.c

+1 −1
Original line number Original line Diff line number Diff line
@@ -207,7 +207,7 @@ static void dlm_purge_lockres(struct dlm_ctxt *dlm, 
		BUG();

		BUG();

	}

	}





	__dlm_unhash_lockres(res);

	__dlm_unhash_lockres(dlm, res);





	/* lockres is not in the hash now.  drop the flag and wake up

	/* lockres is not in the hash now.  drop the flag and wake up

	 * any processes waiting in dlm_get_lock_resource. */

	 * any processes waiting in dlm_get_lock_resource. */