diff options
| author | Ned Bass <[email protected]> | 2015-04-23 12:32:59 -0700 |
|---|---|---|
| committer | Brian Behlendorf <[email protected]> | 2015-04-24 15:04:43 -0700 |
| commit | 4eb30c68644c0aacbed9e10d94eff071b2cd76f8 (patch) | |
| tree | 751fecec325462a50cf9739a87d384f757e90b0e /include/sys | |
| parent | 7008109646446a3f9dda36bfbd3a526f4f8810ae (diff) | |
Serialize access to spa->spa_feat_stats nvlist
The function spa_add_feature_stats() manipulates the shared nvlist
spa->spa_feat_stats in an unsafe concurrent manner. Add a mutex to
protect the list.
Signed-off-by: Ned Bass <[email protected]>
Signed-off-by: Brian Behlendorf <[email protected]>
Closes #3335
Diffstat (limited to 'include/sys')
| -rw-r--r-- | include/sys/spa_impl.h | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/include/sys/spa_impl.h b/include/sys/spa_impl.h index 72e04e8cf..19ba11537 100644 --- a/include/sys/spa_impl.h +++ b/include/sys/spa_impl.h @@ -236,6 +236,7 @@ struct spa { uint64_t spa_feat_for_read_obj; /* required to read from pool */ uint64_t spa_feat_desc_obj; /* Feature descriptions */ uint64_t spa_feat_enabled_txg_obj; /* Feature enabled txg */ + kmutex_t spa_feat_stats_lock; /* protects spa_feat_stats */ nvlist_t *spa_feat_stats; /* Cache of enabled features */ /* cache feature refcounts */ uint64_t spa_feat_refcount_cache[SPA_FEATURES]; |