LU-13238 ofd: add OFD access logs

[fs/lustre-release.git] / lustre / ofd / ofd_dev.c

diff --git a/lustre/ofd/ofd_dev.c b/lustre/ofd/ofd_dev.c
index 3bceb33..883d7ef 100644 (file)
--- a/lustre/ofd/ofd_dev.c
+++ b/lustre/ofd/ofd_dev.c
@@ -2845,6 +2845,8 @@ static int ofd_init0(const struct lu_env *env, struct ofd_device *m,
        INIT_LIST_HEAD(&m->ofd_inconsistency_list);
        spin_lock_init(&m->ofd_inconsistency_lock);
 
+       m->ofd_access_log_mask = -1; /* Log all accesses if enabled. */
+
        spin_lock_init(&m->ofd_batch_lock);
        init_rwsem(&m->ofd_lastid_rwsem);
 
@@ -3015,6 +3017,9 @@ static void ofd_fini(const struct lu_env *env, struct ofd_device *m)
                d->ld_obd->obd_namespace = m->ofd_namespace = NULL;
        }
 
+       ofd_access_log_delete(m->ofd_access_log);
+       m->ofd_access_log = NULL;
+
        ofd_stack_fini(env, m, &m->ofd_dt_dev.dd_lu_dev);
 
        LASSERT(atomic_read(&d->ld_ref) == 0);
@@ -3130,13 +3135,28 @@ static struct lu_device_type ofd_device_type = {
  */
 static int __init ofd_init(void)
 {
-       int                             rc;
+       int rc;
 
        rc = lu_kmem_init(ofd_caches);
        if (rc)
                return rc;
+
+       rc = ofd_access_log_module_init();
+       if (rc)
+               goto out_caches;
+
        rc = class_register_type(&ofd_obd_ops, NULL, true, NULL,
                                 LUSTRE_OST_NAME, &ofd_device_type);
+       if (rc)
+               goto out_ofd_access_log;
+
+       return 0;
+
+out_ofd_access_log:
+       ofd_access_log_module_exit();
+out_caches:
+       lu_kmem_fini(ofd_caches);
+
        return rc;
 }
 
@@ -3148,8 +3168,9 @@ static int __init ofd_init(void)
  */
 static void __exit ofd_exit(void)
 {
-       lu_kmem_fini(ofd_caches);
        class_unregister_type(LUSTRE_OST_NAME);
+       ofd_access_log_module_exit();
+       lu_kmem_fini(ofd_caches);
 }
 
 MODULE_AUTHOR("OpenSFS, Inc. <http://www.lustre.org/>");