diff options
| -rw-r--r-- | fs/jbd2/transaction.c | 11 | ||||
| -rw-r--r-- | include/linux/jbd2.h | 4 |
2 files changed, 15 insertions, 0 deletions
diff --git a/fs/jbd2/transaction.c b/fs/jbd2/transaction.c index f30802aeefae..70b3199e69dc 100644 --- a/fs/jbd2/transaction.c +++ b/fs/jbd2/transaction.c @@ -241,6 +241,8 @@ out: return ret; } +static struct lock_class_key jbd2_handle_key; + /* Allocate a new handle. This should probably be in a slab... */ static handle_t *new_handle(int nblocks) { @@ -251,6 +253,9 @@ static handle_t *new_handle(int nblocks) handle->h_buffer_credits = nblocks; handle->h_ref = 1; + lockdep_init_map(&handle->h_lockdep_map, "jbd2_handle", + &jbd2_handle_key, 0); + return handle; } @@ -293,7 +298,11 @@ handle_t *jbd2_journal_start(journal_t *journal, int nblocks) jbd2_free_handle(handle); current->journal_info = NULL; handle = ERR_PTR(err); + goto out; } + + lock_acquire(&handle->h_lockdep_map, 0, 0, 0, 2, _THIS_IP_); +out: return handle; } @@ -1419,6 +1428,8 @@ int jbd2_journal_stop(handle_t *handle) spin_unlock(&journal->j_state_lock); } + lock_release(&handle->h_lockdep_map, 1, _THIS_IP_); + jbd2_free_handle(handle); return err; } diff --git a/include/linux/jbd2.h b/include/linux/jbd2.h index 98a2bc5d3e3f..2cbf6fdb1799 100644 --- a/include/linux/jbd2.h +++ b/include/linux/jbd2.h @@ -418,6 +418,10 @@ struct handle_s unsigned int h_sync: 1; /* sync-on-close */ unsigned int h_jdata: 1; /* force data journaling */ unsigned int h_aborted: 1; /* fatal error on handle */ + +#ifdef CONFIG_DEBUG_LOCK_ALLOC + struct lockdep_map h_lockdep_map; +#endif }; |