diff options
Diffstat (limited to 'drivers')
| -rw-r--r-- | drivers/md/raid5-cache.c | 14 |
1 files changed, 13 insertions, 1 deletions
diff --git a/drivers/md/raid5-cache.c b/drivers/md/raid5-cache.c index e786d4e555cc..c36f86b47252 100644 --- a/drivers/md/raid5-cache.c +++ b/drivers/md/raid5-cache.c @@ -370,6 +370,7 @@ static inline void r5c_update_log_state(struct r5l_log *log) struct r5conf *conf = log->rdev->mddev->private; sector_t free_space; sector_t reclaim_space; + bool wake_reclaim = false; if (!r5c_is_writeback(log)) return; @@ -379,12 +380,18 @@ static inline void r5c_update_log_state(struct r5l_log *log) reclaim_space = r5c_log_required_to_flush_cache(conf); if (free_space < 2 * reclaim_space) set_bit(R5C_LOG_CRITICAL, &conf->cache_state); - else + else { + if (test_bit(R5C_LOG_CRITICAL, &conf->cache_state)) + wake_reclaim = true; clear_bit(R5C_LOG_CRITICAL, &conf->cache_state); + } if (free_space < 3 * reclaim_space) set_bit(R5C_LOG_TIGHT, &conf->cache_state); else clear_bit(R5C_LOG_TIGHT, &conf->cache_state); + + if (wake_reclaim) + r5l_wake_reclaim(log, 0); } /* @@ -1345,6 +1352,10 @@ static void r5c_do_reclaim(struct r5conf *conf) spin_unlock(&conf->device_lock); spin_unlock_irqrestore(&log->stripe_in_journal_lock, flags); } + + if (!test_bit(R5C_LOG_CRITICAL, &conf->cache_state)) + r5l_run_no_space_stripes(log); + md_wakeup_thread(conf->mddev->thread); } @@ -2401,6 +2412,7 @@ void r5c_finish_stripe_write_out(struct r5conf *conf, spin_unlock_irq(&conf->log->stripe_in_journal_lock); sh->log_start = MaxSector; atomic_dec(&conf->log->stripe_in_journal_count); + r5c_update_log_state(conf->log); } int |