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-rw-r--r--fs/jbd/transaction.c9
1 files changed, 9 insertions, 0 deletions
diff --git a/fs/jbd/transaction.c b/fs/jbd/transaction.c
index 772b6531a2a..8df5bac0b7a 100644
--- a/fs/jbd/transaction.c
+++ b/fs/jbd/transaction.c
@@ -233,6 +233,8 @@ out:
return ret;
}
+static struct lock_class_key jbd_handle_key;
+
/* Allocate a new handle. This should probably be in a slab... */
static handle_t *new_handle(int nblocks)
{
@@ -243,6 +245,8 @@ static handle_t *new_handle(int nblocks)
handle->h_buffer_credits = nblocks;
handle->h_ref = 1;
+ lockdep_init_map(&handle->h_lockdep_map, "jbd_handle", &jbd_handle_key, 0);
+
return handle;
}
@@ -286,6 +290,9 @@ handle_t *journal_start(journal_t *journal, int nblocks)
current->journal_info = NULL;
handle = ERR_PTR(err);
}
+
+ lock_acquire(&handle->h_lockdep_map, 0, 0, 0, 2, _THIS_IP_);
+
return handle;
}
@@ -1411,6 +1418,8 @@ int journal_stop(handle_t *handle)
spin_unlock(&journal->j_state_lock);
}
+ lock_release(&handle->h_lockdep_map, 1, _THIS_IP_);
+
jbd_free_handle(handle);
return err;
}