diff options
Diffstat (limited to 'include/linux/jbd2.h')
| -rw-r--r-- | include/linux/jbd2.h | 10 |
1 files changed, 10 insertions, 0 deletions
diff --git a/include/linux/jbd2.h b/include/linux/jbd2.h index a3cd647ea1bc..004c9a8d63ed 100644 --- a/include/linux/jbd2.h +++ b/include/linux/jbd2.h @@ -687,6 +687,8 @@ jbd2_time_diff(unsigned long start, unsigned long end) return end + (MAX_JIFFY_OFFSET - start); } +#define JBD2_NR_BATCH 64 + /** * struct journal_s - The journal_s type is the concrete type associated with * journal_t. @@ -831,6 +833,14 @@ struct journal_s struct mutex j_checkpoint_mutex; /* + * List of buffer heads used by the checkpoint routine. This + * was moved from jbd2_log_do_checkpoint() to reduce stack + * usage. Access to this array is controlled by the + * j_checkpoint_mutex. [j_checkpoint_mutex] + */ + struct buffer_head *j_chkpt_bhs[JBD2_NR_BATCH]; + + /* * Journal head: identifies the first unused block in the journal. * [j_state_lock] */ |