diff options
Diffstat (limited to 'fs/ocfs2/dlm/dlmmaster.c')
| -rw-r--r-- | fs/ocfs2/dlm/dlmmaster.c | 14 |
1 files changed, 13 insertions, 1 deletions
diff --git a/fs/ocfs2/dlm/dlmmaster.c b/fs/ocfs2/dlm/dlmmaster.c index b36cce034ea0..6cfbdf282d46 100644 --- a/fs/ocfs2/dlm/dlmmaster.c +++ b/fs/ocfs2/dlm/dlmmaster.c @@ -1967,6 +1967,7 @@ ok: spin_unlock(&mle->spinlock); if (res) { + int wake = 0; spin_lock(&res->spinlock); if (mle->type == DLM_MLE_MIGRATION) { mlog(0, "finishing off migration of lockres %.*s, " @@ -1974,6 +1975,7 @@ ok: res->lockname.len, res->lockname.name, dlm->node_num, mle->new_master); res->state &= ~DLM_LOCK_RES_MIGRATING; + wake = 1; dlm_change_lockres_owner(dlm, res, mle->new_master); BUG_ON(res->state & DLM_LOCK_RES_DIRTY); } else { @@ -1981,6 +1983,8 @@ ok: } spin_unlock(&res->spinlock); have_lockres_ref = 1; + if (wake) + wake_up(&res->wq); } /* master is known, detach if not already detached. @@ -2342,7 +2346,7 @@ static int dlm_migrate_lockres(struct dlm_ctxt *dlm, struct list_head *queue, *iter; int i; struct dlm_lock *lock; - int empty = 1; + int empty = 1, wake = 0; if (!dlm_grab(dlm)) return -EINVAL; @@ -2467,6 +2471,7 @@ static int dlm_migrate_lockres(struct dlm_ctxt *dlm, res->lockname.name, target); spin_lock(&res->spinlock); res->state &= ~DLM_LOCK_RES_MIGRATING; + wake = 1; spin_unlock(&res->spinlock); ret = -EINVAL; } @@ -2525,6 +2530,7 @@ fail: dlm_put_mle_inuse(mle); spin_lock(&res->spinlock); res->state &= ~DLM_LOCK_RES_MIGRATING; + wake = 1; spin_unlock(&res->spinlock); goto leave; } @@ -2567,6 +2573,7 @@ fail: dlm_put_mle_inuse(mle); spin_lock(&res->spinlock); res->state &= ~DLM_LOCK_RES_MIGRATING; + wake = 1; spin_unlock(&res->spinlock); goto leave; } @@ -2595,6 +2602,11 @@ leave: if (ret < 0) dlm_kick_thread(dlm, res); + /* wake up waiters if the MIGRATING flag got set + * but migration failed */ + if (wake) + wake_up(&res->wq); + /* TODO: cleanup */ if (mres) free_page((unsigned long)mres); |