Introduce read/write kstats per dataset

[mirror_zfs.git] / module / zfs / zfs_vfsops.c

diff --git a/module/zfs/zfs_vfsops.c b/module/zfs/zfs_vfsops.c
index a477c8669b543e0ed0cd8363958fb1110d616b33..488eaa4f2f45ec560ff92a037f2ad3dfd314ce87 100644 (file)
--- a/module/zfs/zfs_vfsops.c
+++ b/module/zfs/zfs_vfsops.c
@@ -20,7 +20,7 @@
  */
 /*
  * Copyright (c) 2005, 2010, Oracle and/or its affiliates. All rights reserved.
- * Copyright (c) 2012, 2015 by Delphix. All rights reserved.
+ * Copyright (c) 2012, 2018 by Delphix. All rights reserved.
  */
 
 /* Portions Copyright 2010 Robert Milkowski */
@@ -1256,6 +1256,9 @@ zfsvfs_setup(zfsvfs_t *zfsvfs, boolean_t mounting)
                /* restore readonly bit */
                if (readonly != 0)
                        readonly_changed_cb(zfsvfs, B_TRUE);
+
+               ASSERT3P(zfsvfs->z_kstat.dk_kstats, ==, NULL);
+               dataset_kstats_create(&zfsvfs->z_kstat, zfsvfs->z_os);
        }
 
        /*
@@ -1288,6 +1291,7 @@ zfsvfs_free(zfsvfs_t *zfsvfs)
        vmem_free(zfsvfs->z_hold_trees, sizeof (avl_tree_t) * size);
        vmem_free(zfsvfs->z_hold_locks, sizeof (kmutex_t) * size);
        zfsvfs_vfs_free(zfsvfs->z_vfs);
+       dataset_kstats_destroy(&zfsvfs->z_kstat);
        kmem_free(zfsvfs, sizeof (zfsvfs_t));
 }