diff options
Diffstat (limited to 'include/libzfs_impl.h')
| -rw-r--r-- | include/libzfs_impl.h | 9 |
1 files changed, 8 insertions, 1 deletions
diff --git a/include/libzfs_impl.h b/include/libzfs_impl.h index 568103f4b..9a46b9f12 100644 --- a/include/libzfs_impl.h +++ b/include/libzfs_impl.h @@ -21,7 +21,7 @@ /* * Copyright (c) 2005, 2010, Oracle and/or its affiliates. All rights reserved. - * Copyright (c) 2011, 2015 by Delphix. All rights reserved. + * Copyright (c) 2011, 2017 by Delphix. All rights reserved. * Copyright (c) 2018 Datto Inc. */ @@ -60,6 +60,13 @@ struct libzfs_handle { void *libzfs_sharehdl; /* libshare handle */ uint_t libzfs_shareflags; boolean_t libzfs_mnttab_enable; + /* + * We need a lock to handle the case where parallel mount + * threads are populating the mnttab cache simultaneously. The + * lock only protects the integrity of the avl tree, and does + * not protect the contents of the mnttab entries themselves. + */ + pthread_mutex_t libzfs_mnttab_cache_lock; avl_tree_t libzfs_mnttab_cache; int libzfs_pool_iter; char libzfs_chassis_id[256]; |