diff options
Diffstat (limited to 'fs/ocfs2/dlm')
| -rw-r--r-- | fs/ocfs2/dlm/dlmcommon.h | 1 | ||||
| -rw-r--r-- | fs/ocfs2/dlm/dlmmaster.c | 13 |
2 files changed, 13 insertions, 1 deletions
diff --git a/fs/ocfs2/dlm/dlmcommon.h b/fs/ocfs2/dlm/dlmcommon.h index fae17c640df3..e88ccf8c83ff 100644 --- a/fs/ocfs2/dlm/dlmcommon.h +++ b/fs/ocfs2/dlm/dlmcommon.h @@ -1014,7 +1014,6 @@ void dlm_move_lockres_to_recovery_list(struct dlm_ctxt *dlm, /* will exit holding res->spinlock, but may drop in function */ void __dlm_wait_on_lockres_flags(struct dlm_lock_resource *res, int flags); -void __dlm_wait_on_lockres_flags_set(struct dlm_lock_resource *res, int flags); /* will exit holding res->spinlock, but may drop in function */ static inline void __dlm_wait_on_lockres(struct dlm_lock_resource *res) diff --git a/fs/ocfs2/dlm/dlmmaster.c b/fs/ocfs2/dlm/dlmmaster.c index a6944b25fd5b..fdf4b41d0609 100644 --- a/fs/ocfs2/dlm/dlmmaster.c +++ b/fs/ocfs2/dlm/dlmmaster.c @@ -757,6 +757,19 @@ lookup: if (tmpres) { spin_unlock(&dlm->spinlock); spin_lock(&tmpres->spinlock); + + /* + * Right after dlm spinlock was released, dlm_thread could have + * purged the lockres. Check if lockres got unhashed. If so + * start over. + */ + if (hlist_unhashed(&tmpres->hash_node)) { + spin_unlock(&tmpres->spinlock); + dlm_lockres_put(tmpres); + tmpres = NULL; + goto lookup; + } + /* Wait on the thread that is mastering the resource */ if (tmpres->owner == DLM_LOCK_RES_OWNER_UNKNOWN) { __dlm_wait_on_lockres(tmpres); |