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| author | Mingming Cao <cmm@us.ibm.com> | 2008-01-28 23:58:27 -0500 |
|---|---|---|
| committer | Theodore Ts'o <tytso@mit.edu> | 2008-01-28 23:58:27 -0500 |
| commit | 7b7510662f4d05ddcc45d435769860e73e6aa20e (patch) | |
| tree | adf0fe32c57c53099b6604bcf40d914398a5504c /fs | |
| parent | b939e3766ec19eb556cb784c2faace253c6e1560 (diff) | |
| download | linux-7b7510662f4d05ddcc45d435769860e73e6aa20e.tar.gz linux-7b7510662f4d05ddcc45d435769860e73e6aa20e.tar.bz2 linux-7b7510662f4d05ddcc45d435769860e73e6aa20e.zip | |
jbd2: add lockdep support
Ported from similar patch for the jbd layer.
Signed-off-by: Mingming Cao <cmm@us.ibm.com>
Signed-off-by: "Theodore Ts'o" <tytso@mit.edu>
Diffstat (limited to 'fs')
| -rw-r--r-- | fs/jbd2/transaction.c | 11 |
1 files changed, 11 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; } |