diff options
| author | Jan Kara <[email protected]> | 2012-03-13 15:43:04 -0400 |
|---|---|---|
| committer | Theodore Ts'o <[email protected]> | 2012-03-13 15:43:04 -0400 |
| commit | a78bb11d7acd525623c6a0c2ff4e213d527573fa (patch) | |
| tree | 6e2e228cc51a2138046b499d6d9002f35f6d56d0 /tools/perf/util/scripting-engines/trace-event-python.c | |
| parent | 24bcc89c7e7c64982e6192b4952a0a92379fc341 (diff) | |
jbd2: protect all log tail updates with j_checkpoint_mutex
There are some log tail updates that are not protected by j_checkpoint_mutex.
Some of these are harmless because they happen during startup or shutdown but
updates in jbd2_journal_commit_transaction() and jbd2_journal_flush() can
really race with other log tail updates (e.g. someone doing
jbd2_journal_flush() with someone running jbd2_cleanup_journal_tail()). So
protect all log tail updates with j_checkpoint_mutex.
Signed-off-by: Jan Kara <[email protected]>
Signed-off-by: "Theodore Ts'o" <[email protected]>
Diffstat (limited to 'tools/perf/util/scripting-engines/trace-event-python.c')
0 files changed, 0 insertions, 0 deletions