diff options
| -rw-r--r-- | fs/fs-writeback.c | 14 |
1 files changed, 12 insertions, 2 deletions
diff --git a/fs/fs-writeback.c b/fs/fs-writeback.c index bff5f775e9bc..ef2acd24cc02 100644 --- a/fs/fs-writeback.c +++ b/fs/fs-writeback.c @@ -859,6 +859,12 @@ static long wb_check_old_data_flush(struct bdi_writeback *wb) unsigned long expired; long nr_pages; + /* + * When set to zero, disable periodic writeback + */ + if (!dirty_writeback_interval) + return 0; + expired = wb->last_old_flush + msecs_to_jiffies(dirty_writeback_interval * 10); if (time_before(jiffies, expired)) @@ -954,8 +960,12 @@ int bdi_writeback_task(struct bdi_writeback *wb) break; } - wait_jiffies = msecs_to_jiffies(dirty_writeback_interval * 10); - schedule_timeout_interruptible(wait_jiffies); + if (dirty_writeback_interval) { + wait_jiffies = msecs_to_jiffies(dirty_writeback_interval * 10); + schedule_timeout_interruptible(wait_jiffies); + } else + schedule(); + try_to_freeze(); } |