diff options
Diffstat (limited to 'drivers/md')
| -rw-r--r-- | drivers/md/dm-writecache.c | 12 |
1 files changed, 10 insertions, 2 deletions
diff --git a/drivers/md/dm-writecache.c b/drivers/md/dm-writecache.c index d3126fda96d8..4e4a09054f85 100644 --- a/drivers/md/dm-writecache.c +++ b/drivers/md/dm-writecache.c @@ -631,6 +631,12 @@ static void writecache_add_to_freelist(struct dm_writecache *wc, struct wc_entry wc->freelist_size++; } +static inline void writecache_verify_watermark(struct dm_writecache *wc) +{ + if (unlikely(wc->freelist_size + wc->writeback_size <= wc->freelist_high_watermark)) + queue_work(wc->writeback_wq, &wc->writeback_work); +} + static struct wc_entry *writecache_pop_from_freelist(struct dm_writecache *wc) { struct wc_entry *e; @@ -652,8 +658,8 @@ static struct wc_entry *writecache_pop_from_freelist(struct dm_writecache *wc) list_del(&e->lru); } wc->freelist_size--; - if (unlikely(wc->freelist_size + wc->writeback_size <= wc->freelist_high_watermark)) - queue_work(wc->writeback_wq, &wc->writeback_work); + + writecache_verify_watermark(wc); return e; } @@ -967,6 +973,8 @@ erase_this: writecache_commit_flushed(wc, false); } + writecache_verify_watermark(wc); + wc_unlock(wc); } |