diff options
| author | Sebastien Roy <[email protected]> | 2018-11-05 08:40:05 -0700 |
|---|---|---|
| committer | Brian Behlendorf <[email protected]> | 2018-11-15 11:33:58 -0800 |
| commit | a10d50f999511d304f910852c7825c70c9c9e303 (patch) | |
| tree | 636446232088444d7dfab1b7a2dc7ca541ee1f9e /include/libzfs_impl.h | |
| parent | af2e8411dacbc694b1aaf9074e68a9d12270e74c (diff) | |
OpenZFS 8115 - parallel zfs mount
Porting Notes:
* Use thread pools (tpool) API instead of introducing taskq interfaces
to libzfs.
* Use pthread_mutext for locks as mutex_t isn't available.
* Ignore alternative libshare initialization since OpenZFS-7955 is
not present on zfsonlinux.
Authored by: Sebastien Roy <[email protected]>
Reviewed by: Matthew Ahrens <[email protected]>
Reviewed by: Pavel Zakharov <[email protected]>
Reviewed by: Brad Lewis <[email protected]>
Reviewed by: George Wilson <[email protected]>
Reviewed by: Paul Dagnelie <[email protected]>
Reviewed by: Prashanth Sreenivasa <[email protected]>
Authored by: Brian Behlendorf <[email protected]>
Approved by: Matt Ahrens <[email protected]>
Ported-by: Don Brady <[email protected]>
OpenZFS-issue: https://www.illumos.org/issues/8115
OpenZFS-commit: https://github.com/openzfs/openzfs/commit/a3f0e2b569
Closes #8092
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]; |